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VACUUM COLLECTION SYSTEM DESIGN MANUAL
FOR SUPERMARKETS
GENERAL SYSTEM INFORMATION
Provides general system information including the
benefits of the EVAC system, operation, typical
components used and their location.
1
PRELIMINARY DESIGN
Proposes questions for the designer in order to
layout the system. The section also provides a
design checklist and the general rules of design
for the vacuum drainage piping.
VACUUM COLLECTION
SYSTEM DESIGN
MANUAL FOR
SUPERMARKETS
The purpose of this Design Manual is to not
only present our product, but to also provide
the necessary information for an engineering
consultant firm or for a customer engineering
department to layout and properly document
the installation of an EVAC collection system
for a supermarket.
The EVAC Vacuum Collection System Design
Manual will take the designer through a stepby-step process for design of an EVAC vacuum
collection system. This step-by-step process is
divided into the following sections
2
SIZING OF THE
EVAC VACUUM SYSTEM
Teaches the designer how to size the waste pipe
in an EVAC collection system and enables the
user to choose the proper vacuum central.
3
DESIGN INFORMATION
Provides the designer with specific design
details for connection to fixtures.
4
PRODUCT CATALOG SHEETS
Provides the designer with specific product
information and selection.
5
INSTALLATION INSTRUCTION SHEETS
Contains the fixture and product
installation cut sheets.
6
SAMPLE SPECIFICATIONS
Envirovac, Inc.
1260 Turret Drive
Rockford, IL 61115 USA
888 438 3822
815 654 8300
Fax 815 654 8306
Contains sample specifications that can be used
by the designer for construction documentation.
WARRANTY
7
8
SECTION 1
This section provides general system information including the benefits of the EVAC system, operation, typical
components used, and their location.
1.1 PURPOSE
The EVAC vacuum collection system is designed to
eliminate or significantly reduce the under-floor drainage
piping in the supermarket’s sales area.
1.2 BENEFITS
The following are the basic benefits of an EVAC vacuum
collection system for supermarkets.
1.2.1
Complete floor plan design flexibility.
1.2.2
Easy and less costly relocation of refrigerated
display cases.
1.2.3
For retrofits — the EVAC system eliminates
the additional cost and inconvenience associated with concrete cutting and floor patching.
1.3 PRINCIPLES
OF
OPERATION
The EVAC collection system uses differential air
pressure to transport waste as opposed to a gravityinduced flow of a conventional wastewater collection
system. A vacuum collection system consists of four
components:
1. Vacuum central collection tanks
2. Interface valves
a. Activator
b. Discharge valve
3. Buffers
4. Vacuum drainage piping.
An EVAC collection system uses a vacuum central
similar to that of a gravity lift station or pumping station.
The vacuum central is equipped with vacuum pumps in
order to maintain a negative pressure in the drainage
piping feeding into the vacuum central.
Vacuum is maintained in the drainage piping with the
installation of normally-closed interface valves. As the
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interface valve is opened, wastewater is pushed
through the piping by in-rushing air into the vacuum
drainage piping. The valve then closes and waits for
another cycle. The interface valves are pneumaticallyoperated using the negative pressure contained in the
vacuum drainage piping.
The buffer collects the wastewater from a fixture(s). The
accumulation of wastewater in the buffer is sensed,
pneumatically, by the interface valve’s activator. The
interface valve’s cycle begins when the amount of
water reaches a preset level.
The vacuum drainage piping is simple to install
compared to gravity drainage piping. Vacuum drainage
piping is smaller in diameter, requires no venting and
no continuous slope. Vacuum drainage piping is
designed with vertical lifts resulting in design flexibility
and installation savings. Generally, a mechanical/refrigeration contractor installs the vacuum drainage piping.
The design criteria for the EVAC Vacuum Collection
System are contained in the following sections.
1.4 EVAC VACUUM SYSTEM
COMPONENTS
1.4.1 Vacuum Central
The EVAC vacuum central is a single unit consisting of
a set of vacuum pumps, collection tank(s), an electrical
control panel, and the necessary valves and piping.
1.4.2 Interface Valve
The Interface Valve consists of a discharge valve and
an activator. The interface valve is used in conjunction
with an EVAC Buffer. The activator senses wastewater
in a buffer and opens the discharge valve to transport
the wastewater toward the vacuum central. The interface
valve uses no electrical components and operates using
the negative pressure available in the vacuum drainage
piping.
1.4.3 EVAC Buffer
The EVAC Buffer is a component supplied by EVAC that
collects wastewater from a fixture(s) so it can be sensed
© 1998
Envirovac, Inc.
Section 1.0.0
SECTION 1
by the interface valve. A contractor installs it according to
the installation sheets contained in Section 6.
1.4.4 EVAC Check Valves
Vacuum check valves are supplied by EVAC to prevent
back-flow in the vacuum drainage piping. The EVAC
check valves are typically installed in only a few
locations. In most cases, the interface valve acts as the
check valve.
1.5.5 Isolation Valves
Typically, isolation valves are installed directly in the
vacuum waste piping where a main or branch splits to
service another section of the store. The design
engineer determines the quantity and location of the
isolation valves.
1.6 VACUUM DRAINAGE PIPING
LAYOUT
1.4.5 Isolation Valves
As an option, full-port ball valves may be specified in
the vacuum drainage piping for isolation. Isolation valves
allow for maintenance or re-modeling to be
performed on the system without losing use of the whole
system.
1.5 TYPICAL LOCATION
COMPONENTS
OF
1.5.1 Vacuum Central
It is recommended to install the vacuum central at the
back of the store in either a dedicated mechanical space
or on a mezzanine level. Please refer to Section 6.
1.5.2 Interface Valve
Mounting of the activator and discharge valve is dependent upon the type of refrigerated display case or fixture.
Please refer to Section 6.
1.5.3 EVAC Buffer
The EVAC Buffer is installed beneath or behind a
refrigerated display case or fixture enabling it to be
gravity fed. The location of the buffer is dependent upon
the type of refrigerated display case or plumbing fixture.
Please refer to Section 6.
1.6.1 General Routing of Vacuum Drainage
Piping
Typically, vacuum drainage piping is located above a
dropped ceiling or near the roof joists in an open ceiling.
The vacuum drainage piping is strategically installed with
lateral branches to provide future flexibility and connection to the system.
Risers from refrigerated display cases are located near
support columns or in false columns. As a general rule, the
vacuum drainage piping follows the refrigeration piping.
Some customers may prefer not to have false columns
installed for island refrigerated display cases. In these
instances the waste piping from the island cases may be
installed as gravity plumbing in a shallow trench that
contains the electrical and refrigeration piping. At a point
at which a riser is acceptable, the gravity plumbing
enters a buffer for collection by the vacuum waste
system. Using trenches reduces the vacuum waste
collection system’s benefits by reducing the flexibility of
moving the island cases in the future.
1.6.2 Location of Valving
1.5.4 EVAC Check Valves
The type of case determines the location of the interface
valves. The details in Section 6 show the typical
location of the interface valve components. These
details may be referred to after the system is installed
to facilitate service and/or maintenance.
Typically, EVAC check valves are installed at the top of a
vertical riser pipe when the interface valve is mounted
low in the same vertical riser piping.
All EVAC valves located in the store must be installed in
areas that are readily accessible for future service and/or
maintenance.
© 1998
Envirovac, Inc.
Section 1.0.0
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SECTION 2
PRELIMINARY DESIGN
Design Questions, Check List and General Rules
This section identifies questions for the designer for
layout of the system. The section also provides a design
checklist and the general rules of design for the vacuum
drainage piping.
If no
When the EVAC Collection System is used solely to collect
condensate waste from display cases there are typically no air
gaps at each case. A single air gap is located at the discharge
pipe of the vacuum central prior to entering into the gravity
sanitary drainage piping.
2.1 SYSTEM DESIGN PREPARATION
If yes
2.1.1 Determine the scope of the project or
usage.
The EVAC Collection System is being used to collect sanitary
fixtures, air gaps may be required by code at the refrigerated
cases. This is a critical issue as there are several types of cases
with low profiles that may require shimming to provide space for
an air gap prior to entering into the EVAC Buffer. Shimming must
be coordinated with the installer of the refrigerated cases.
The purpose of the EVAC Collection System is to
eliminate or significantly reduce the under-floor piping
within the sales area of a supermarket. The customer
must be consulted in order to facilitate design: (Check the
appropriate boxes.)
2.1.2 Vacuum Central Design Considerations
a. Will utility trenches be eliminated and will all electrical and refrigerant piping be routed from above for
all cases?
a. Will the vacuum central be located in a mechanical
room or allocated space in the stocking room or
mezzanine level?
q Yes
q No
q Mechanical room q Stock room/mezzanine
b. Are false columns containing the electrical, refrigerant piping and vacuum waste piping acceptable for
island cases?
q Yes
q No
If located on mezzanine, the vacuum drainage piping must always
enter the vacuum central from above.
b. Will back-up emergency power be available for the
vacuum central?
q Yes
If not, the waste piping would need to be under-floor or in a
shallow utilities trench.
c.
c.
Does the customer want the refrigeration units contained in the walk-in coolers to be connected to the
vacuum waste system?
q Yes
q No
q No
Will the vacuum central alarms be connected to the
building management system for the refrigerated
display cases?
q Yes
q No
2.1.3 EVAC Buffer Design Considerations
Typically, there is no advantage to collect the units at the back of
a store on the vacuum system as the units can be easily connected to a near-by gravity waste line.
d. Will sanitary and gray water fixtures, such as hand
sinks or prep sinks, be collected by the vacuum
waste system?
q Yes
q No
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The EVAC Buffer, EB-025, requires an installation space
of 4.25" in height and 4.50" in width. For each refrigerated case the following considerations needs to be made
with regard to space under the case. Typically, low
profile cases such as specialty end cases, dairy, reach-in
frozen food, and specialty deli-bakery cases require considerations.
© 1998
Envirovac, Inc.
Section 2.0.0
SECTION 2
PRELIMINARY DESIGN
a. Will the EVAC Buffer fit under the case either from
the front or slide in from one end of the case?
q Yes
q No
If no
There are two options,
1.
2.
Detail the location of the buffer at the side of the case or
behind the case.
The customer must have the case manufacturer furnish an
elevated base.
b. Will the drainage piping from the case line-up have a
continuous slope prior to entering the buffer? Various
cases may have very limited space from the drain to
the floor or end base frames that make it difficult to
maintain a continuous slope from case to case.
q Yes
q No
There are three options,
Specify additional valve kits and buffers for the case line-up
to insure that there is a continuous slope of the drainage
piping feeding the buffer.
2.
Detail the drainage piping behind the case.
3.
The customer must have the case manufacturer furnish an
elevated base.
2.1.4 Determine any Code Restrictions
a. Condensate Collection System
Does your local plumbing authority and/or public
health department require system intention use to
be submitted?
q Yes
Does your local plumbing authority and/or public
health department require system intention use to
be submitted?
q Yes
q No
Using an EVAC Collection System to collect sanitary fixtures,
such as sinks, may require a submittal of the intended use to the
local plumbing authority and/or the public health office. Consult
your local EVAC representative for any questions regarding this
issue.
2.2. DESIGN CHECKLIST
2.2.1 Has the full scope of the project been
identified?
q Yes
If no
1.
b. Sanitary Collection System
q No
The EVAC Collection System is a process system for safe waste
or condensate. Many jurisdictions require the intended use of the
system to be submitted to the local plumbing authority and/or the
public health office. Consult your local EVAC representative for
any questions regarding this issue. EVAC has received approval
for use of the collecting system in many jurisdictions.
q No
2.2.2 Have all approval agencies and their
requirements been identified?
q Yes
q No
2.2.3 Have all project guidelines and specifications been identified?
q Yes
q No
2.2.4 Has the configuration of the EVAC
collection system been identified
based upon available utilities and
customer requirements?
q Yes
q No
2.2.5 Has the available electrical power,
including emergency power, been
identified?
q Yes
q No
2.2.6 Have instructions to other trades,
such as refrigeration installers and
electricians been Identified?
q Yes
© 1998
Envirovac, Inc.
Section 2.0.0
q No
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SECTION 2
PRELIMINARY DESIGN
2.3. GENERAL RULES
OF
DESIGN
Reference the installation instruction sheet for vacuum
drainage piping contained in Section 6.6.2.
2.3.1 Vacuum Drainage Piping
2.3.2 Piping Materials, refer to the sample
specification in Section 7.
a. Plastics, as permitted by Codes and Variances
a.1.
a.2.
a.3.
PVC Schedule 40 or Schedule 80
ABS Schedule 40 or Schedule 80
HDPE, rated for 100% vacuum pressure.
Vacuum drainage piping begins at the buffer outlet.
a. Pitch all horizontal vacuum piping at a minimum
1/16" per foot. This requirement may sometimes be
met by using the pitch of the store roof from front to
back.
Minimum Required Drainage Slope
1/16"
1’-0"
b. Support piping at 5’ intervals and within 1 foot of
each change in direction. Sagging of the pipe
between supports is not permitted.
c.
Use only long radius 90O elbows or (2) 45O elbows in
the vacuum drainage piping. No standard 90O
elbows are permitted.
b. Metallic
b.1.
b.2.
2.3.3. Vertical Lift Rules
a. Each buffer shall be provided with it’s own riser pipe
except as follows:
Reach-in frozen food refrigerated cases may have a
common riser for a branch main located at the top of
the case line-up. Reference the installation instructions for vacuum drainage piping in Section 6.
b. Riser pipes must enter the tops of mains or branches through wye pattern fittings rolled not more than
45O from vertical see Figure 1.
d. Risers are to enter mains from above using a wye
pattern fitting. The wye fitting may be rolled a maximum of 45O from vertical see Figure 1.
e. No tee fittings are permitted in the vacuum drainage
piping.
f.
Copper, Type ‘M’, hard drawn tubing.
Due to surface roughness, cast iron or steel
pipe is not permitted.
45O
Figure 1.
Internal surfaces of the piping and joints must be
smooth, free of burrs and obstructions.
g. Locate clean-outs in the vacuum drainage piping at
the ends of mains and branches and when there is a
90O change in direction in an overhead branch or
main.
h. Isolation and check valves are to be full-port valves,
rated for vacuum.
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© 1998
Envirovac, Inc.
Section 2.0.0
SECTION 2
PRELIMINARY DESIGN
c.
A single offset is allowed in vertical risers.
Note: An offset is not preferred and should only be
used to bypass structural obstructions.
See Figure 2.
YES
YES
NO
Offset
1’-0" Horizontal
Maximum
Offset
Figure 2.
© 1998
Envirovac, Inc.
Section 2.0.0
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SECTION 3.0
SIZING
OF THE
EVAC VACUUM COLLECTION SYSTEM
This section instructs the designer how to size the
vacuum waste pipe in an EVAC Vacuum Collection
System and enables the user to choose the proper
vacuum central.
Table 3.1
Equivalent Interface Valve Drainage Fixture Units
Buffer
or Detail
IVDFU
Refrigerated Display Cases
EB-025-R
0.5
Walk-in Cooler Refrig. Coils
EB-025-R
0.5
Walk-in Cooler Refrig. Coils
EB-025-R
0.5
Trench Drain for Refrig. Display Cases
2" Buffer Detail
0.5
Trench Drain for Refrig. Display Cases
2" Buffer Detail
0.5
Hand Sink, Plastic Drainage Piping
EB-025-SP
5
Hand Sink, Plastic Drainage Piping
EB-025-SP
5
Hand Sink, Copper Drainage Piping
EB-025-SC
5
Hand Sink, Copper Drainage Piping
EB-025-SC
5
Fixture or Configuration
3.1 INTERFACE VALVE DRAINAGE
FIXTURE UNITS
The interface valve drainage fixture units, IVDFU,
contained in Table 3.1 are used to determine the size of
the vacuum central and the vacuum drainage piping.
Table 3.1 shows the equivalent interface valve drainage
fixture units for fixtures or connections that may be
connected to an EVAC vacuum waste system.
All fixtures are to be connected to an EVAC Buffer or
EVAC designed buffer. Reference the system sizing
chart contained at the end of this section.
3.2 KEY SYSTEM PARAMETERS
Table 3.1 provides a fixture unit equivalent for the EVAC Buffers.
Once a fixture is connected to one of the buffers described above,
the equivalent IVDFU for the buffer takes precedence over the
IVDFU for the plumbing fixture.
3.2.1 Buffer assigned IVDFU value.
IVDFU value assigned for the EVAC Buffer, Model EB025, is dependent upon the number of defrost cycles
occurring at any given time in a store. An IVDFU value
of 0.5 is based upon one defrost cycle occurring at one
time with a maximum of (3) EVAC Buffers, EB-025,
connected to the refrigerated cases effected by the
defrost cycles. Scheduling more than one defrost cycle
to occur at the same time increases the IVDFU value for
the EVAC Buffer, EB-025.
# of Defrost Cycles
Occurring at Same Time
EVAC Buffer EB-025
IVDFU
1
2
0.5
2.0
Note:
It is not recommended to schedule more than one defrost cycle at the
same time.
3.2.2 Wash-down assigned IVDFU value.
A 2" vacuum drainage pipe is rated for 12 IVDFU and
therefore can handle one wash-down of one refrigerated
case.
3.3 CONDENSATE COLLECTION VS.
CONDENSATE AND SANITARY
COLLECTION
An important design consideration for collecting strictly
condensate waste versus condensate waste plus
sanitary waste is the required air gaps for refrigerated
display cases.
In a gravity waste system each set of refrigerated display
cases is connected to under-floor gravity sanitary waste
piping through an air gap. When using an EVAC vacuum
collection system to collect only condensate waste, there
is only one air gap for the system, located at the
discharge of the vacuum central.
A wash-down of a single refrigerated display case
creates a design load equivalent to 12 IVDFU. For pipe
sizing ignore all other fixtures when sizing to accommodate wash-downs.
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© 1998
Envirovac, Inc.
Section 3.0.0
SECTION 3.0
SIZING
OF THE
Once a single sanitary fixture is connected to the vacuum waste system, air gaps may be required at each set
of case connections prior to entering a buffer. Under
these circumstances, low profile cases will require
special considerations in order to accommodate an air
gap and the installation of an EVAC Buffer. Contact an
EVAC Representative for assistance.
Vacuum Drainage Pipe Sizing Examples.
Example#1:
Two branches connect into one main that is collecting all of the
refrigerated display cases in the store. The store has 120 refrigerated
cases all separated by defrost cycle time with 40 EVAC Buffers,
Model EB-025.
IVDFUs
3.4 DEFROST CYCLES
Groups of refrigerated display cases in a supermarket
are on a specific refrigeration circuit, (i.e., on a specific
refrigeration compressor). The equivalent drainage fixture units in Table 3.1 are based upon one refrigeration
circuit going into defrost at one particular time with a
maximum of (3) EVAC Buffers connected to the refrigerated cases effected by the defrost cycle.
= 40 (EB-025) x 0.5 IVDFU/buffer
= 20 total
The required pipe size for the main is 3" as a 2" pipe can only
transport a maximum of 12 IVDFUs.
Example#2:
2"
2"
2"
A
The sizing of the vacuum central and the vacuum piping
in the system is based upon one defrost cycle occurring
at any time. It is not recommended to schedule
more than one defrost cycle at the same
time.
3.5 VACUUM DRAINAGE PIPE SIZING
Hand Sink
(5 IVDFU)
EB-025-R
3"
D
Hand Sink
(5 IVDFU)
EB-025-R
EB-025-R Hand Sink
(5 IVDFU)
In this particular vacuum branch line there are (3) hand (general) sinks
and (3) EVAC Buffers for refrigerated display cases. The hand sinks
are connected to an EVAC Buffer, Model EB-025-SP.
At Location A.
3.5.1 Mains and branches
The maximum IVDFUs allowed on a particular pipe size
are shown in Table 3.2.
IVDFUs
= 1 (Hand Sink thru EB-025-SP) x 5 IVDFU/buffer
= 5 Total
Pipe Size
= 2"
At Location D.
When laying out the mains and branches begin with a 2"
pipe. As fixtures are added increase the branch and
main pipe sizes as specified in Table 3.2.
Examples of vacuum drainage pipe sizing are contained
in the following.
IVDFUs
= 3 (Hand Sink thru EB-025-SP) x 5 IVDFU/buffer +
3 (EB-025-R) x 0.5 IVDFU/buffer
= 16.5 Total
Pipe Size
= 3"
Therefore, a vacuum central that can accommodate 16.5 IVDFUs must
be specified.
Table 3.2
Pipe Size vs. IVDFUs
Size of Vacuum Pipe (inches/mm)
Maximum IVDFUs
Maximum Horizontal Length (feet/meters)
© 1998
Envirovac, Inc.
Section 3.0.0
2/50
3/80
4/100
12
132
292
400/125 900/280 2000/650
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SECTION 3.0
SIZING
OF THE
Example #3:
Total IVDFUs is 38, requiring vacuum central SM260-30H.
2"
2"
2"
EB-025-R
(0.5 IVDFU)
4, EB-025-R for Refrigerated Cases
(0.5 IVDFU each)
2, Hand Sinks
(5 IVDFU each)
3"
EB-025-R
(0.5 IVDFU)
3"
Pipe size increases to 3" for upper portion
and remains 2" for lower portion of layout.
2"
Vacuum
Central
EB-025-R
(0.5 IVDFU)
(0.5 IVDFU each)
EB-025-R
(0.5 IVDFU)
2"
2"
EB-025-R
(0.5 IVDFU)
2"
EB-025-R
(0.5 IVDFU)
(0.5 IVDFU each)
2"
2"
EB-025-R
(0.5 IVDFU)
(0.5 IVDFU each)
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© 1998
Envirovac, Inc.
Section 3.0.0
SECTION 3.0
SIZING
OF THE
3.5.2 Vacuum riser pipe sizing
For vacuum riser pipe sizing refer to the details for
installation provided in Section 6.6.2.
3.6 VACUUM CENTRAL SIZING
The total number of interface valve drainage fixture units
connected to the vacuum central determines its Size.
Table 3.3 defines the maximum number of interface
valve drainage fixture units that can be collected by an
EVAC vacuum central:
Table 3.3
Vacuum Central Sizing
Vacuum Central Model #
Max IVDFUs
SM260-30H
80
SM260-30H
80
SM260-30H
80
3.7 INTERFACE VALVE SELECTION
Selection of the proper EVAC interface valve is dependent upon the type of fixture that is to be connected to
the EVAC Collection System. An interface valve is used
in conjunction with an EVAC Buffer or EVAC buffer
design. A system sizing chart contained at the end of
this section provides a cross-reference between fixture
type, interface valve and buffer.
3.8 EVAC BUFFER SELECTION
Selection of the proper EVAC Buffer is dependent upon
the type of fixture that is to be connected to the EVAC
Collection System. An EVAC Buffer is used in conjunction with an EVAC Interface Valve. A system sizing
chart contained at the end of this section provides a
cross-reference between fixture type, interface valve
and buffer.
© 1998
Envirovac, Inc.
Section 3.0.0
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5
5
0.5
0.5
0.5
Unit
IVDFU
Total IVDFU:
Total
Quantity
Extended
IVDFU
OF THE
Vacuum Central Model Number
EB-025-SC
Hand Sink — Copper Drainage Piping
IFV-1-3-R-B
IFV-1-1-R-B
EB-025-SP
Hand Sink — Plastic Drainage Piping
IFV-1-1-R-B
IFV-1-1-R-B
EB-025-R
Walk-in Cooler Refrig. Coils, Plastic Pipe
IFV-1-1-R-B
Interface
Valve
SIZING
Trench Drain for Refrig. Display Case, Plastic Pipe 2” Buffer Detail
EB-025-R
Buffer
or Detail
Refrig. Display Cases, Plastic Pipe
Fixture or Configuration
SYSTEM SIZING CHART
EVAC COLLECTION SYSTEM
SECTION 3.0
© 1998
Envirovac, Inc.
Section 3.0.0
SECTION 4
DESIGN DETAILS
This section provides the designer with specific design
details for connecting refrigerated cases, fixtures and the
vacuum central
4.1 CONNECTION TO REFRIGERATED
DISPLAY CASES
Please refer to Section 6 for details showing the
connection to various types of cases. The details outline
the buffer size, buffer location, riser pipe size, and the
locations of the valving.
4.3.3 Vacuum central pump exhaust
The vacuum pump exhaust is to be a dedicated pipe,
minimum 1-1/2". The exhaust pipe is to be metallic using
cast iron, steel pipe or copper tubing. Do not use
plastic piping as the plastic piping will begin to
deform due to the heat generated from the vacuum
pumps. Route the exhaust piping through the roof/(side
wall) and terminate with a 180O/(90O) turn or an approved
rain cap. No traps or sagging in the piping are
allowed.
4.3.4 Electrical connection
Installation instruction sheets are provided in Section 6
of this manual.
4.2 CONNECTION
TO SANITARY
FIXTURE
Please refer to Section 6 for details showing the
connection to various types of sanitary fixtures.
4.3 VACUUM CENTRAL
Please refer to Section 6 for the installation instructions
of the vacuum central:
4.3.1 Vacuum main connection
A. Power Requirements
Table 4.1 defines the electrical requirements of the
EVAC vacuum central:
Table 4.1.
Electrical Power Requirements
Electrical Power
230V/3PH/60Hz
Required Amps
22
460V/3PH/60Hz
11
415V/3PH/50Hz
11
380V/3PH/60Hz
12
The owner must be consulted for connection to
emergency back-up power.
The vacuum main connection to the inlet of the vacuum
central is to be from above. Do not design for a vacuum
piping lift into the vacuum central manifold.
4.3.2 Vacuum central discharge
The wastewater discharge pipe of the vacuum central is
to be connected to a sanitary drain via a visible air gap
as required by code, see Figure 1.
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© 1998
Envirovac, Inc.
Section 4.0.0
SECTION 4
DESIGN DETAILS
B. Alarm Connection to Building Management System
Many stores will have a building management
system for monitoring the refrigerated display cases
and the compressor racks. The EVAC vacuum
central control panel may also be connected to
the building management system. Consult the
manufacturer of the building management system
for interfacing the EVAC vacuum central.
Air Gap
Required.
Check
code for
distance
From Vacuum
Central Discharge
Drain to City
Sewer System
The following standard alarm conditions are provided
by EVAC as dry contacts:
1. Low Vacuum
2. Vacuum Pump Motor Overload
3. Tank Block Level
Figure 1.
For condensate wastewater only.
The maximum rating of the dry contacts is:
1 AMP at 115 VAC or 1 AMP at 24 VDC
Please refer to the Installation Instructions provided
in Section 6.
Additional alarms may be provided as shown on the
Product Submittal Sheet contained in Section 6.
3’ Maintenance
Clear Space
Provide a minimum maintenance clear space around
the vacuum central of 3 feet on 3 sides as shown in
Figure 2.
3’ Maintenance
Clear Space
4.3.5 Maintenance clear space
3’ Maintenance
Clear Space
Figure 2.
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Envirovac, Inc.
Section 4.0.0
Maintenance clear space.
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SECTION 5
PRODUCT CATALOG SHEETS
Table of Contents
This section contains the product catalog sheets.
SECTION 5.1 — VACUUM CENTRALS
5.1.1
SM260-30H
5.1.2
5.1.3
SECTION 5.2 — EVAC VALVES
5.2.1
Interface Valve — Model IFV-1
5.2.2
Check Valve — Model CKV-2
5.2.3
Check Valve — Model CKV-4
SECTION 5.3 — EVAC BUFFERS
5.3.1
Model EB-025
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Section 5.0.0
SM260-30H -
VACUUM CENTRAL
VACUUM CENTRAL
Model No. SM260-30H
Model No. SM260-30H
LV
- DLX
Model Number
Vacuum Central
(2) 60 gallon tanks
(3) 2.0 HP pumps
Standard Electrical Packages
Code
q LV
q HV
q IV1
q IV2
(check box)
Voltage
Low Voltage — 230 Volts, 3-Phase, 60 Hertz
High Voltage — 460 Volts, 3-Phase, 60 Hertz
International Voltage — 415 Volts, 3-Phase, 50 Hertz
International Voltage — 380 Volts, 3-Phase, 60 Hertz
The standard electrical package includes:
•
•
•
•
•
•
•
Nema 12 Enclosure
Vacuum Pump Selector Switches, MAN/OFF/AUTO
Power ON Light
Low Vacuum Alarm Light
Motor Overload Alarm light
Block Level Alarm Light
Alarm connections to remote monitoring
- Low vacuum
- Block Level
- Motor Overload
Optional Electrical Packages
Code
q DLX
(check box)
Package
Alarm/Run-time Package
The alarm/run-time package includes:
• Phase monitor alarm
• Alarm horn
• Hour run meters for the vacuum pumps.
APPLICATION
OPERATION
The Vacuum Central Model SM260-30H is designed
to be installed in a supermarket for the purpose of
collecting condensate wastewater and/or limited sanitary
wastewater. The unit is to be installed in accordance with
the installation instructions contained in Section 6 of the
EVAC Design Manual for Supermarkets.
The vacuum central maintains vacuum pressure
throughout the waste piping system using vacuum
pumps. The vacuum central collects wastewater from fixtures connected to the system. When wastewater in a
collection tank reaches a predetermined level the tank
will automatically vent to atmospheric pressure and discharge by gravity.
CONSTRUCTION
The vacuum central is a packaged unit containing rotaryvane, non-lubricated vacuum pumps with TEFC motors,
an electrical control panel designed in accordance with
NEC requirements, and plastic collection tanks all
mounted on a steel frame.
GUIDE SPECIFICATION
Furnish and install EVAC Vacuum Central Model
. The unit shall be framemounted; factory tested unit equipped with (3) 2.0 HP
vacuum pumps and (2) 60-gallon collection tanks.
Electrical requirements are as follows:
Volts, 3 Phase,
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Date
Dimensions are subject to manufacturer’s tolerance of ± 1/4" and may change without notice. EVAC assumes no responsibility for use of void or superseded data.
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Envirovac, Inc.
Section 5.1.1
Hertz.
The unit shall have a 2" U.S. pipe waste inlet and 4"
U.S. pipe outlet.
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Envirovac, Inc.
Section 5.1.1
Left Side View
Top View
12.88"
327.5mm
Vacuum Central
System Diagram
Vacuum Gauge
Electrical Power to Enter
Here. See Note #2.
Vacuum Pump
Exhaust
Control Panel
17.45"
443.2mm
VP3
15.81"
401.6mm
VP2
11.75"
298.5mm
21.50"
546.1mm
25.85"
656.6mm
VP1
(2) Collections Tanks
60 Gal. (227L) Each
Vacuum Condensate
Drain Inlet — 2" PVC
Pipe Socket Connection.
(2) Vacuum Switches
Drain Outlet to Gravity
Sewer — 4" PVC Pipe
Spigot Connection to
Each Tank.
In
60 Gal.
Tank 1
60 Gal.
Tank 2
Front View
Vacuum Release
Valve (Each Tank)
Level Probe
(2) Each Tank
10.59"Typ.
269mm
26.71" Typ.
678.4mm
11.75"
298.5mm
Out
Tank 2
Tank 1
Vacuum Condensate
Drain Inlet —
2" PVC Pipe
Socket Connection.
Right Side View
80.60" Max
2047.2mm
Notes
WEIGHTS: (Approximate)
Dry — 550 lb. (249 kg.)
Wet — 900 lb. (408 kg.)
ELECTRICAL REQUIREMENTS
460 VAC, 3Ø, 60 Hz, 11 Amps
230 VAC, 3Ø, 60 Hz, 22 Amps
415 VAC, 3Ø, 50 Hz, 11 Amps
380 VAC, 3Ø, 60 Hz, 12 Amps
Vacuum Pump
Exhaust —
1" Copper Solder
Joint Connection.
(3) Vacuum Pumps
w/ 2HP Motors
VP3
68.20" Max
1732.3mm
VP2
85.00" Max
2159mm
Qty. 4
3.00" Sq.
76.2mm
Mounting Foot Print
58.81"
1341.4mm
VP1
20.50"
520.7mm
Qty. 4
Ø 0.50"
(12.7 mm)
Mtg. Holes
42.00"
1066.8mm
38.46" Max.
976.9mm
45.00"
1143mm
23.50"
596.9mm
1.50"
38.1mm
VACUUM INTERFACE VALVE
Model No. IFV-1
PURPOSE
OPERATION
The Interface Valve, Model No. IFV-1, is designed to
transfer wastewater from plumbing fixtures, refrigerated
display cases, or refrigeration coils to the vacuum
drainage piping. The valve has a rated capacity of 20
IVDFU’s and is to be used in accordance with the
installation details contained in Section 6 of the EVAC
Design Manual for Supermarkets.
The Interface Valve is used in conjunction with an EVAC
Buffer. Wastewater from a plumbing fixture, refrigerated
display cases, or evaporator unit enters a section of pipe
or a vessel called a "buffer". The activator senses the
level of wastewater in the buffer, and sends a signal to
open the discharge valve allowing the wastewater to
enter the vacuum drainage piping.
CONSTRUCTION
GUIDE SPECIFICATION
The Interface Valve is non-electric and uses the vacuum
pressure contained in the downstream vacuum piping to
operate. The Interface Valve is a kit consisting of the
following:
Furnish and install EVAC Interface Valve Model
. The valve shall operate
pneumatically using the vacuum pressure available in
the system and shall be non-electric.
1. Discharge valve with an ABS housing and EPDM
diaphragms.
2. Activator valve with an ABS housing and PVC
adapters.
3. EPDM or Neoprene tubing.
4. Stainless steel activator mounting bracket.
5. ABS mini check valve.
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© 1998
Envirovac, Inc.
Section 5.2.1
VACUUM INTERFACE VALVE
Model No. IFV-1
IFV-1
Model Number
Pipe Size
-
4
Tubing
(check box)
Code
Inlet
Outlet
Male Pipe for plastic piping
1-1/4" Body
includes:
discharge valve,
activator w/mounting bracket,
and mini check valve.
q 1
q 2
1-1/2"
2"
- R -
R
Valve Timing
(check box)
(check box)
Code
Type
Code
Timing
q R
EPDM or
Neoprene
q R
q B
q W
Red-Blue Timing Jets
Blue-Blue Timing Jets
White-Blue Timing Jets
1-1/2"
2"
Copper Tube, Shielded Coupling
q 3
q 4
1-1/2"
2"
1-1/2"
2"
Activator
1/4" ID
Tubing
Ø 0.281"
Clearance Holes
2 Places
(VACUUM)
)
VE
AL
(V
1/4" ID
Tubing
Mini
Check Valve
Activator
Mounting
Bracket
Inlet
Outlet
1/4" ID
Tubing
(SENSING)
Discharge Valve
From Buffer
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Section 5.2.1
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VACUUM CHECK VALVE
Model No. CKV-2
APPLICATION
The Vacuum Check Valve, Model No. CKV-2, is
designed to seal and prevent back-flow in a vacuum
waste system. The valve is designed for use in a 2"
vacuum waste pipe.
GUIDE SPECIFICATION
Furnish and install Evac Vacuum Check Valve Model
. The check valve shall be
a full-port, flapper-type, rated for vacuum service to
28 in-Hg.
CONSTRUCTION
The check valve has a PVC body and a Neoprene flapper.
OPERATION
The check valve is a full-port, flapper type. The valve is
installed horizontally in a vacuum waste line at the top of
a riser when a discharge valve is mounted low and at
the point in which a branch vacuum line enters into a
main. The check valve is used to prevent back-flow in a
vacuum waste system.
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© 1998
Envirovac, Inc.
Section 5.2.2
VACUUM CHECK VALVE
Model No. CKV-2
CKV-2 -
Model Number
2" Body
4
Pipe Size
-
S
Optional Coupling
(check box)
Code
Inlet
Outlet
Male Pipe for plastic piping
q
q
1
2
1-1/2"
2"
Code
q
q
2"
2"
S
N
(check box)
Coupling Type
Shielded
Non-shielded
Copper Tube, Shielded Coupling
q
3
2"
2"
Metric, Socket Ends
q
4
63mm
63mm
Check Valve
Sheilded or
Non-shielded
Coupling
Sheilded or
Non-shielded
Coupling
Inlet
Outlet
6.80"
173mm
12.40"
315mm
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Date
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Section 5.2.2
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BUFFER
Model No. EB-025
PURPOSE
OPERATION
The EVAC Buffer is designed to receive wastewater from
hand sinks and refrigerated display cases. It is also
sized to handle intermittent heavy flow that is generated
during a wash-down of a refrigerated display case. The
EVAC buffer is to be installed in accordance with the
installation instructions contained in Section 6 of the
EVAC Design Manual for Supermarkets.
Wastewater from a hand sink or refrigerated display
case enters the EVAC Buffer. The wastewater begins to
fill the EVAC Buffer creating head pressure. The head
pressure generated inside the buffer box is sensed by
the interface valve’s activator. The interface valve’s cycle
begins when the amount of water reaches a preset level.
At this level, the wastewater inside the EVAC Buffer will
be evacuated to the vacuum drainage piping.
CONSTRUCTION
The EVAC Buffer is constructed of ABS material with an
1-1/2" female socket inlet and 1-1/2" male spigot outlet.
GUIDE SPECIFICATION
Furnish and install EVAC Buffer Model EB-025. The
Buffer shall have an 1-1/2" US Pipe female-socket inlet
and 1-1/2" US Pipe outlet.
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© 1998
Envirovac, Inc.
Section 5.3.1
BUFFER
Model No. EB-025
EB-025 -
Model Number
1-1/2" Female-socket Inlet
1-1/2" Male Outlet
Sensing
Connection
1.05"
26.7mm
R
Buffer Application
Code
q
q
q
R
SP
SC
(check box)
Application
Refrigerated display cases or refrigeration coils
Sink — Plastic vacuum drainage piping
Sink — Copper vacuum drainage piping
9.30"
236mm
11.68"
296.7mm
4.30"
109mm
1-1/2" Male
Outlet
1-1/2" Female
Inlet
4.00"
100mm
1.91"
48.5mm
1.86"
47.2mm
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Title
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Date
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Section 5.3.1
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SECTION 6
INSTALLATION DETAILS
Table of Contents
This section provides specific installation details that are available on diskette from EVAC. These details are to be inserted
directly onto the construction drawings for a specific supermarket.
SECTION 6.1 — INSTALLATION INSTRUCTIONS
FOR
REFRIGERATED DISPLAY CASES
6.1.1
Bulk Produce Case, High Profile
6.1.2
Bulk Produce Case, High Profile.
6.1.3
Island Produce Case
Also used for Salad Bars and Island Deli or Bakery Cases
6.1.4
Frozen Food Island Case, Low Profile
6.1.5
Frozen Food and Ice Cream Case, Low Profile
6.1.6
Dairy/Delicatessen, Low Profile
6.1.7
Meat Case, High Profile
6.1.8
Meat/Delicatessen, Low Profile
6.1.9
Meat Case, High Profile
SECTION 6.2 — INSTALLATION INSTRUCTIONS FOR SANITARY
6.2.1
Hand Sink with P-trap Installation
6.2.2
Hand Sink without P-trap Installation
OR
GRAY WATER FIXTURES
SECTION 6.3 — INSTALLATION INSTRUCTIONS FOR VACUUM CENTRALS
6.3.1
SM260-30H
6.3.2
6.3.3
SECTION 6.4 — INSTALLATION INSTRUCTIONS FOR INTERFACE VALVES
6.4.1
For Refrigerated Display Cases — Interface valve at top of riser
6.4.2
For Refrigerated Display Cases — Interface valve in riser w/o check valve
6.4.3
For Refrigerated Display Cases — Interface valve in riser with check valve
SECTION 6.5 — COMPONENT INSTALLATION INSTRUCTIONS
6.5.1
EVAC Buffer, EB-025
6.5.2
EVAC Check Valve, CKV-2
SECTION 6.6 — OTHER INSTALLATION INSTRUCTIONS
6.6.1
Trench Drainage to EVAC Buffer Design
6.6.2
Vacuum Drainage Piping
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Section 6.0.0
BULK PRODUCE CASE, HIGH PROFILE
Hussmann P2, P4 Series or Equivalent
Activator
1-1/2" Riser
From other cases
Air Intake Tee
Buffer
DETAILS
UNDER CASE CLEARANCE:
6" or greater.
BUFFER MODEL NO.:
EB-025-R
BUFFER LOCATION:
Under case.
# CASES / BUFFER:
Up to 4.
INTERFACE VALVE MODEL NO:
IFV-1-1-R-B for plastic piping
DISCHARGE VALVE LOCATION:
Top of riser or in riser.
ACTUATOR LOCATION:
Top of case.
RISER LOCATION:
End of lineup or behind case.
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Envirovac, Inc.
Section 6.1.1
BULK PRODUCE CASE, HIGH PROFILE
Hussmann P1, Series or Equivalent
Activator
1-1/2" Riser
From other cases
Air Intake Tee
Buffer
DETAILS
6" or greater.
BUFFER MODEL NO.:
EB-025-R
BUFFER LOCATION:
Under case, minimal space contraints.
# CASES / BUFFER:
Up to 4.
IFV-1-1-R-B for plastic pipe
Top of riser.
ACTUATOR LOCATION:
Top of case.
RISER LOCATION:
Back of case.
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Section 6.1.2
PRODUCE ISLAND
Hussmann PWE, PW Series or Equivalent
Activator
From other cases
1-1/2" Riser
Air Intake Tee
Buffer
DETAILS
6" or greater.
BUFFER MODEL NO.:
EB-025-R
BUFFER LOCATION:
Under case, minimal space contraints.
# CASES / BUFFER:
Up to 4.
Top of riser.
ACTUATOR LOCATION:
Top of case, partition in fabricated accessible cover, or in partition with
accessible panel.
RISER LOCATION:
Through partition.
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Section 6.1.3
FROZEN FOOD ISLAND CASE, LOW PROFILE
Hussmann L Series or Equivalent
1-1/2" Riser
From other cases
Activator
Buffer
Air Intake Tee
Partition
DETAILS
6" or less.
BUFFER MODEL NO.:
EB-025-R
BUFFER LOCATION:
Front, behind splashguard.
# CASES / BUFFER:
2 or 4 (if 2 island cases and 2 end cases are piped or have common drain line).
Top of riser.
ACTUATOR LOCATION:
Top of case, partition in fabricated accessible cover, or in partition with
accessible panel.
RISER LOCATION:
Through partition.
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Section 6.1.4
FROZEN FOOD & ICE CREAM CASE, LOW PROFILE
Hussmann RL Series or Equivalent
Discharge Valve
1-1/2" Riser
Activator
From other cases
Air Intake Tee
Buffer
DETAILS
6" or less.
BUFFER MODEL NO.:
EB-025-R
BUFFER LOCATION:
Front, behind splashguard or at back of case.
# CASES / BUFFER:
2
Top of case.
ACTUATOR LOCATION:
Top of case.
RISER LOCATION:
Back of case.
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Section 6.1.5
DAIRY/DELICATESSEN CASE, LOW PROFILE
Hussmann D5, D6 Series or Equivalent
1-1/2" Riser
Activator
Buffer
From other cases
Air Intake Tee
DETAILS
6" or less.
BUFFER MODEL NO.:
EB-025-R
BUFFER LOCATION:
Front, behind splashguard or back of case.
# CASES / BUFFER:
2
Top of riser.
ACTUATOR LOCATION:
Top of case.
RISER LOCATION:
Back of case.
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Section 6.1.6
MEAT CASE, HIGH PROFILE
Hussmann M1, M1G Series or Equivalent
Activator
1-1/2" Riser
From other cases
Air Intake Tee
Buffer
DETAILS
6" or greater.
BUFFER MODEL NO.:
EB-025-R
BUFFER LOCATION:
Under case.
# CASES / BUFFER:
Up to 4.
Top of riser.
ACTUATOR LOCATION:
Top of case in fabricated accessible cover or above dropped ceiling.
RISER LOCATION:
At end of lineup or behind case.
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Section 6.1.7
MEAT/DELICATESSEN CASE, LOW PROFILE
Hussmann M2, M2G, C2 Series or Equivalent
Activator
1-1/2" Riser
From other cases
Air Intake Tee
Buffer
DETAILS
6" or less.
BUFFER MODEL NO.:
EB-025-R
BUFFER LOCATION:
Under case.
# CASES / BUFFER:
2
Top of riser.
ACTUATOR LOCATION:
Top of case.
RISER LOCATION:
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Section 6.1.8
MEAT CASE, HIGH PROFILE
Hussmann M4, M4G, M5, M5G, M3, M3G Series or Equivalent
Activator
1-1/2" Riser
From other cases
Air Intake Tee
Buffer
DETAILS
6" or greater.
BUFFER MODEL NO.:
EB-025-R
BUFFER LOCATION:
Front, behind splashguard or back of case.
# CASES / BUFFER:
Up to 4.
IFV-1-1-R-B
Top of riser.
ACTUATOR LOCATION:
Top of case.
RISER LOCATION:
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© 1998
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Section 6.1.9
INSTALLATION INSTRUCTIONS
GENERAL SINK
WITH
EVAC Interface Valve, IFV-1 and EVAC Buffer, EB-025
SINK PIPING — With a sink P-trap
1. Pipe the sink using conventional gravity methods providing a sanitary vent through the roof.
To
Vacuum
Central
2. Route the piping to the EVAC Buffer, EB-025, that is equipped with an air intake adapter.
3. Install an air intake pipe from the EVAC Buffer and connect the air intake to the sanitary vent for the sink.
Check Valve
2" Pipe
6’ Max.
Brace
Vent to Roof
3’ Max.
Activator
1-1/2" Riser
22’ Max.
(SENSING)
6’ Min.
(Typical)
Discharge Valve
(VACUUM)
(VALVE)
(Typical)
1/4" ID Tubing
Supplied by EVAC
7’ Min.
3’ Max.
1-1/2" Pipe
Figure 1.
(Typical)
Buffer
Manual
Operator
Vacuum
Supply
Sensing Connection
Inlet
45O
To
Buffer
Sensor
Figure 2.
Pipe roll at wye.
Figure 3.
Activator.
To
Discharge
Valve
Figure 4.
Activator.
Figure 5.
Buffer—Inlet End.
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Section 6.2.1
GENERAL SINK
WITH
PURPOSE
The EVAC Interface Valve in conjunction with an EVAC
Buffer are designed to transport wastewater from a
plumbing fixture or refrigerated display case into an
EVAC Collection System.
INSTALLATION OF EVAC INTERFACE
VALVE, IFV-01
1. Install a 45O-wye fitting from the vacuum branch or
main in order to install the check valve. The wye fitting may be rolled a maximum of 45O from vertical as
shown in Figure 2. Allow for the maximum riser
height of 22 feet and a maximum distance of 3 feet
from the riser to the wye fitting dropping into the
main/branch.
2. Install the EVAC Check Valve, CKV-2, between the
riser and the wye fitting that drops in to the main.
The check valve has a minor offset of 1/16" that
must be accounted for during installation.
3. Install the discharge valve in the riser pipe a minimum of 7 feet from the floor. The discharge valve is
equipped with male pipe ends for gluing directly into
plastic piping. For copper tubing — use a shielded
coupling that provides a smooth transition from pipe
to tubing.
4. Install a pipe brace on the branch piping or main
within 1 foot of the 45O-wye fitting. Also, install a pipe
brace between the riser pipe and the check valve,
but within 6 inches of the riser pipe itself.
5. Install the 1-1/2" riser pipe allowing for no offsets.
The riser must remain vertical.
6. Install the activator in an accessible location for
future maintenance.
7. Connect the EVAC supplied vacuum tubing as
shown in Figures 1, 3, 4, and 5. The activator ports
are labeled for "sensor", "vacuum", and "discharge".
Attach the vacuum tubing to the riser piping using
wire ties. The tubing bending radius are to be a
minimum of 3" inches to prevent kinking. Do not
over-tighten the wire ties, or the tubing may kink
or collapse.
8. Install the mini check valve in the vacuum source
line of the discharge valve, as shown in Figure 1.
Please note the proper direction of the mini check
valve. Failure to install the mini check valve will
result in damage to the activator that is not covered by EVAC’s warranty.
9. Do not paint IFV-01 components.
INSTALLATION
EB-025
OF
EVAC BUFFER,
1. Install 1-1/2" drainage piping from a refrigerated display case or hand sink at a slope of 1/8" per foot to
the EVAC Buffer.
Required Drainage Slope
1/8"
1’-0"
2. Place the EVAC Buffer directly on the floor with the
direction arrow pointing to the vacuum drainage
riser.
3. Prior to the EVAC Buffer inlet connection install an
air intake tee fitting, as shown in Figure 1.
4. Use a 1-1/2", 45O-street elbow to connect the 1-1/2"
female socket inlet of the EVAC Buffer to the sink
drain line.
5. Use a 1-1/2", 45O-elbow to connect to the 1-1/2"
male spigot outlet of the EVAC Buffer to the vacuum
drainage riser.
6. Route the piping from the EVAC Buffer outlet to the
location of the vacuum drainage riser. Maximum
length from the buffer to the riser is 3 feet.
7. In order to transition to or turn the riser use (2) 45O
elbows or a 90O long sweep radius elbow.
8. Provide bracing within 1 foot of the EVAC Buffer and
within 1 foot of the 90O turn at the vacuum riser in
accordance with the Installation Instructions for
Vacuum Drainage Piping found in Section 6.6.2.
© 1998
Envirovac, Inc.
Section 6.2.1
888 438 3822 • 815 654 8300 • Fax 815 654 8306
GENERAL SINK
WITH
SINK PIPING — Without a sink P-trap
1. Pipe the sink directly to the EVAC Buffer providing no P-Trap.
2. Install an air intake pipe from the EVAC Buffer and terminate vertically 6 inches above the overflow rim of the sink.
To Vacuum Central
Check Valve
6’ Max.
3’ Max.
2" Pipe
Brace
Activator
(Typical)
Discharge Valve
U
M
)
6" Min.
(Typical)
(V
AC
U
Air Intake
1-1/2" Riser
22’ Max.
(SENSING)
(VALVE)
1/4" ID Tubing
Supplied by EVAC
7’ Min.
3’ Max.
1-1/2" Pipe
Figure 1.
(Typical)
Buffer
Manual
Operator
Vacuum
Supply
Sensing Connection
Inlet
45O
To
Buffer
Sensor
Figure 2.
Pipe roll at wye.
Figure 3.
Activator.
To
Discharge
Valve
Figure 4.
Activator.
Figure 5.
Buffer—Inlet End.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 6.2.2
GENERAL SINK
WITH
PURPOSE
VALVE, IFV-01
main in order to install the check valve. The wye fitting may be rolled a maximum of 45O from vertical as
shown in Figure 2. Allow for the maximum riser
height of 22 feet and a maximum distance of 3 feet
from the riser to the wye fitting dropping into the
main/branch.
INSTALLATION
EB-025
OF
EVAC BUFFER,
the EVAC Buffer.
1/8"
riser and the wye fitting that drops into the main.
to tubing.
future maintenance.
or collapse.
1’-0"
riser.
female socket inlet of the EVAC Buffer to the sink
drain line.
drainage riser.
7. In order to transition to or turn the riser use (2) 45O
elbows or a 90O long sweep radius elbow.
© 1998
Envirovac, Inc.
Section 6.2.2
888 438 3822 • 815 654 8300 • Fax 815 654 8306
VACUUM CENTRAL
VACUUM CENTRAL
SM260-30H
SM260-30H
PC1
CB1
TB2
See Detail 2
W
R
PL
AL4
R
R
R
AL1
AL2
AL3
OFF
ON
T1
AH
PWR
ETM
1
ETM
2
ETM
3
See Detail 1
Detail 1.
Motor Trip
Alarm
High Level
Block Alarm
Detail 2.
29
1/4"-20 Threaded
Ground Terminal
on Panel
30
14# AWG Stranded Wire Minimum
10# AWG Stranded Wire Minimum for 230V
31
32
PURPOSE
Required Amps
22
L1 L2 L3
DS
460V/3PH/60Hz
11
415V/3PH/50Hz
11
380V/3PH/60Hz
12
G
G
The Vacuum Central Model SM260-30H is designed to be
installed in supermarkets for the purpose of collecting condensate wastewater and/or limited sanitary wastewater.
INSTALLATION
74.46"
1891.3mm
3’ Maintenance
Clear Space
Electrical Power
230V/3PH/60Hz
3’ Maintenance
Clear Space
3-Phase
Abnormal Alarm
28
ØB
ØC
Low Vacuum
Alarm
ØA
Common
MECHANICAL
1. Install the vacuum central in an accessible location
with a maintenance clear space of 3 feet from all sides
of the unit as shown in Figure 1.
Unpowered Contacts for Remote Alarm
Switching Capacity
Max:
Min:
3’ Maintenance
Clear Space
1 Amp @115 VAC (P.F. 1.0)
1 Amp @ 24 VDC
10 mA @ 5VDC
140.20"
3561.1mm
Figure 1.
© 1998
Envirovac, Inc.
Section 6.3.1
888 438 3822 • 815 654 8300 • Fax 815 654 8306
888 438 3822 • 815 654 8300 • Fax 815 654 8306
Maintenance clear space.
© 1998
Envirovac, Inc.
Section 6.3.1
Left Side View
Top View
12.88"
327.5mm
VACUUM CENTRAL
Vacuum Central
System Diagram
SM260-30H
Vacuum Gauge
Vacuum Pump
Exhaust
2. Secure the unit to the floor using the ½" mounting
holes located on the feet of the vacuum central frame.
3. Connect the vacuum drainage piping for the store to
the inlet of the vacuum central. The inlet is a 2" PVC
female socket connection.
a.
b.
c.
The vacuum drainage piping from the store must enter
the vacuum central from above. No risers are allowed
before entering the vacuum central.
For 3" vacuum drainage piping reduce to 2" at the inlet
connection of the vacuum central using normal plumbing
practices.
Brace the vacuum drainage piping at the inlet of the
vacuum central in accordance with the Vacuum
Drainage Piping Installation Instructions found in Section
6.6.2.
Air Gap Required.
Check code for
distance.
Figure 1.
4. Install a single 4" gravity line to route the outlet of each
tank for connection to the gravity drainage piping using
the following guidelines:
a.
b.
ELECTRICAL POWER
Drain to City
Sewer System
1. Provide electrical power as detailed below:
Electrical Power
230V/3PH/60Hz
Required Amps
22
460V/3PH/60Hz
11
415V/3PH/50Hz
11
380V/3PH/60Hz
12
2. Connect (3)-wire electrical power cable with ground
and connect to the DS location in the vacuum central
electrical control panel as shown in Detail 1.
From Vacuum
Central Discharge
OPTONAL REMOTE ALARM CONNECTION
1. Dry contacts are provided in the electrical control
panel for the following alarms:
a. Low Vacuum
b. Vacuum Pump Motor Overload
c. Tank Block Level
d. Abnormal 3-Phase Power, (when purchased)
Drain to City
Sewer System
Figure 3.
For sanitary wastewater only.
2. Connect (2)-wire electrical cable to the terminal block
labeled TB-2 inside the electrical control panel for the
purpose of remote monitoring as shown in Detail 2.
The maximum rating of the dry contacts is 1 Amp @
115 VAC or 24 VDC.
17.45"
443.2mm
15.81"
401.6mm
VP2
11.75"
298.5mm
21.50"
546.1mm
25.85"
656.6mm
VP1
(2) Collections Tanks
60 Gal. (227L) Each
Vacuum Central is Collecting Sanitary Wastewater:
Hard pipe the vacuum central discharge to the gravity
drainage piping as shown in Figure 3.
From Vacuum
Central Discharge
For condensate wastewater only.
Control Panel
VP3
Vacuum Central is Collecting Condensate Wastewater
Only: Route the piping to an approved receptor. Provide
an air gap as required by code as shown in Figure 2.
5. Increase the 1" exhaust for the vacuum pump(s) to
1-1/2". The exhuast pipe is to be metallic using cast
iron, steel pipe or copper tubing. Do not use plastic
piping as the plastic piping will begin to deform
due to the heat generated from the vacuum
pumps. Route the exhaust piping through the roof/
(side wall) and terminate with a 180O/(90O) turn or an
approved rain cap. No traps or sagging in the pipe
are allowed.
Electrical Power to Enter
Here. See Note #2.
Vacuum Condensate
Drain Inlet — 2" PVC
Pipe Socket Connection.
(2) Vacuum Switches
In
60 Gal.
Tank 1
Drain Outlet to Gravity
Sewer — 4" PVC Pipe
Spigot Connection to
Each Tank.
60 Gal.
Tank 2
Front View
Vacuum Release
Valve (Each Tank)
Level Probe
(2) Each Tank
10.59" Typ.
269mm
Out
26.71" Typ.
678.4mm
11.75"
298.5mm
Tank 2
Tank 1
Vacuum Condensate
Drain Inlet —
2" PVC Pipe
Socket Connection.
Right Side View
80.60" Max
2047.2mm
Notes
WEIGHTS: (Approximate)
Dry — 550 lb. (249 kg.)
Wet — 900 lb. (408 kg.)
Vacuum Pump
Exhaust —
1" Copper Solder
Joint Connection.
ELECTRICAL REQUIREMENTS
460 VAC, 3Ø, 60 Hz, 11 Amps
230 VAC, 3Ø, 60 Hz, 22 Amps
415 VAC, 3Ø, 50 Hz, 11 Amps
380 VAC, 3Ø, 60 Hz, 12 Amps
(3) Vacuum Pumps
w/ 2HP Motors
VP3
68.20" Max
1732.3mm
VP2
85.00" Max
2159mm
Qty. 4
3.00" Sq.
76.2mm
Mounting Foot Print
58.81"
1341.4mm
VP1
20.50"
520.7mm
Qty. 4
Ø 0.50"
(12.7 mm)
Mtg. Holes
42.00"
1066.8mm
38.46" Max.
976.9mm
45.00"
1143mm
23.50"
596.9mm
1.50"
38.1mm
REFRIGERATED CASE
WITH
OPTION 1 — Discharge valve at top of lift
To Vacuum Central
6’ Max.
3’ Max.
2" Pipe
Brace
Activator
(Typical)
(Typical)
(VACUUM)
Discharge Valve
1-1/2" Riser
(VALVE)
22’ Max.
(SENSING)
1/4" ID Tubing
Supplied by EVAC
Bottom
of Case
3’ Max.
Air Intake
Buffer
Figure 1.
1-1/2" Pipe
Manual
Operator
(Typical)
Sensing Connection
Vacuum
Supply
Inlet
45O
To
Buffer
Sensor
Figure 2.
Pipe roll at wye.
Figure 3.
Activator.
To
Discharge
Valve
Figure 4.
Activator.
Figure 5.
Buffer—Inlet End.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 6.4.1
REFRIGERATED CASE
WITH
OPTION 1 — Discharge valve at top of lift
PURPOSE
VALVE, IFV-01
1. Install a 45O-wye fitting in the vacuum branch or
main. This allows for installation of the discharge
valve. The wye fitting may be rolled a maximum of
45O from vertical as shown in Figure 2. Allow for the
maximum riser height of 20 feet.
INSTALLATION
EB-025
OF
EVAC BUFFER,
the EVAC Buffer.
1/8"
1’-0"
2. Install the discharge valve at the top of the riser pipe
in the horizontal position within 3 feet of the riser
pipe. The discharge valve is equipped with male
pipe ends for gluing directly into plastic piping. For
copper tubing — use a shielded coupling that provides a smooth transition from pipe to tubing.
brace between the riser and the discharge valve, but
within 6 inches of the riser pipe itself.
future maintenance.
or collapse.
riser.
female socket inlet of the EVAC Buffer to the case
drain line.
drainage riser.
7. In order to transition to the riser use (2) 45O elbows
or a 90O long sweep radius elbow.
© 1998
Envirovac, Inc.
Section 6.4.1
888 438 3822 • 815 654 8300 • Fax 815 654 8306
REFRIGERATED CASE
WITH
OPTION 2 — Discharge valve in riser pipe with no
check valve at the top of the lift
To Vacuum Central
3’ Max.
2" Pipe
Brace
5’ Max.
Activator
(Typical)
(Typical)
(V
AC
U
U
M
)
Discharge Valve
1-1/2" Riser
22’ Max.
(VALVE)
(SENSING)
1/4" ID Tubing
Supplied by EVAC
Bottom
of Case
Air Intake
3’ Max.
Buffer
Figure 1.
1-1/2" Pipe
Manual
Operator
(Typical)
Sensing Connection
Vacuum
Supply
Inlet
45O
To
Buffer
Sensor
Figure 2.
Pipe roll at wye.
Figure 3.
Activator.
To
Discharge
Valve
Figure 4.
Activator.
Figure 5.
Buffer—Inlet End.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 6.4.2
REFRIGERATED CASE
WITH
OPTION 2 — Discharge valve in riser pipe with no check valve at the top of the lift
PURPOSE
VALVE, IFV-01
O
1. Install a 45 -wye fitting from the vacuum branch or
main in order to install the interface valve. The wye
fitting may be rolled a maximum of 45O from vertical.
Allow for the maximum riser height of 22 feet and a
maximum distance of 3 feet from the riser to the wye
fitting dropping into the main/branch.
INSTALLATION
EB-025
OF
EVAC BUFFER,
the EVAC Buffer.
1/8"
1’-0"
2. Install the discharge valve in the riser pipe within 5
feet of the top of the riser. The discharge valve is
to tubing.
brace between the riser pipe and the 45O-wye fitting,
future maintenance.
or collapse.
riser.
drain line.
drainage riser.
© 1998
Envirovac, Inc.
Section 6.4.2
888 438 3822 • 815 654 8300 • Fax 815 654 8306
REFRIGERATED CASE
WITH
OPTION 3 — Discharge valve in riser pipe with a
check valve at the top of the lift
To Vacuum Central
Check Valve
6’ Max.
2" Pipe
3’ Max.
Brace
Activator
(Typical)
(Typical)
AC
U
U
M
)
Discharge Valve
(V
1-1/2" Riser
(SENSING)
22’ Max.
Bottom
of Case
(VALVE)
1/4" ID Tubing
Supplied by EVAC
7’ - 12’
3’ Max.
Air Intake
Buffer
Figure 1.
1-1/2" Pipe
Manual
Operator
(Typical)
Sensing Connection
Vacuum
Supply
Inlet
45O
To
Buffer
Sensor
Figure 2.
Pipe roll at wye.
Figure 3.
Activator.
To
Discharge
Valve
Figure 4.
Activator.
Figure 5.
Buffer—Inlet End.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 6.4.3
REFRIGERATED CASE
WITH
PURPOSE
VALVE, IFV-01
main in order to install the interface valve. The wye
fitting may be rolled a maximum of 45O from vertical.
Allow for the maximum riser height of 22 feet and a
maximum distance of 3 feet from the riser to the wye
fitting dropping into the main/branch.
3. Install the discharge valve in the riser pipe between
7 and 12 feet from the floor. The discharge valve is
to tubing.
INSTALLATION
EB-025
OF
EVAC BUFFER,
the EVAC Buffer.
riser.
1/8"
1’-0"
drain line.
drainage riser.
future maintenance. Refer to the Installation Details
provided in the EVAC Product Catalog for optimal
locations.
or collapse.
© 1998 Envirovac, Inc.
Section 6.4.3
888 438 3822 • 815 654 8300 • Fax 815 654 8306
EVAC BUFFER, EB-025
Sensing
Connection
1.05"
26.7mm
9.30"
236mm
11.68"
296.7mm
4.30"
109mm
0.25" Gap
6.35mm Gap
Bottom of case or fixture
1-1/2" Female
Socket Inlet
1-1/2" Male
Spigot Outlet
4.00"
100mm
1.91"
48.5mm
1.86"
47.2mm
PURPOSE
The EVAC Buffer is designed to receive wastewater from
hand sinks and refrigerated display cases. It is also
sized to handle intermittent heavy flow that is generated
during a wash-down of a refrigerated display case.
PRE-INSTALLATION INSTRUCTIONS
1. The EVAC Buffer, EB-025, requires a 1/4" air gap
between the top of the buffer and the bottom of a
case of fixture, see above figure. This air gap is
required for proper function of the buffer.
2. The EVAC Buffer, EB-025, requires a space for
install of 4.25" in height and 4.50" in width. Typically,
low profile cases such as specialty end cases, dairy,
reach-in frozen food, and specialty deli/bakery case
require consideration. For these low profile cases
the buffer may need to be installed from one end or
at the back of the case. If the buffer does not fit
under the case, STOP WORK, and coordinate
resolution of the problem with the Job Site
Manager.
3. Will the drainage piping from a case line-up have a
continuous slope prior to entering the buffer? Various
cases may have very limited space from the drain to
the floor or end base frames that make it difficult to
maintain a continuous slope from case to case. If a
continuous slope cannot be achieved, STOP
WORK, and coordinate resolution of the problem with the Job Site Manager.
INSTALLATION
1. Install 1-1/2" drainage piping from a refrigerated
display case or hand sink at a slope of 1/8" per foot
to the EVAC Buffer.
1/8"
1’-0"
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 6.5.1
EVAC BUFFER, EB-025
riser.
air intake tee fitting.
drain line.
drainage riser.
© 1998
Envirovac, Inc.
Section 6.5.1
888 438 3822 • 815 654 8300 • Fax 815 654 8306
EVAC CHECK VALVE, CKV-2
Check Valve
Sheilded or
Non-shielded
Coupling
Sheilded or
Non-shielded
Coupling
Inlet
Outlet
6.80"
173mm
12.40"
315mm
PURPOSE
4. The check valve is equipped with customer specified
couplings.
EVAC Check Valves provide back-flow prevention in the
vacuum drainage piping. The check valves are typically
installed horizontally at the tops of risers.
5. The installing contractor must account for an vertical
offset of 1/16" from the inlet to the outlet.
INSTALLATION
1. The EVAC check valve is a flapper type that must be
installed horizontally.
2. The top of the check valve is identified from the
retaining screws for the top housing.
3. Install the check valve in the proper direction as
identified by the directional arrow on the top housing.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 6.5.2
TRENCH DRAIN
FOR REFRIGERATED DISPLAY
EVAC Interface Valve, IFV-1
CASES
WITH
To
Vacuum
Central
Check Valve
6’ Max.
3’ Max.
1/4" ID Tubing
Supplied by EVAC
2" Pipe
Brace
(VACUUM)
(Typical)
(Typical)
Activator
Discharge Valve
(VALVE)
(SENSING)
1-1/2" Riser
22’ Max.
Distance allowed
by code
2" x 1-1/2" Reducer
7’ Min.
4" Pipe
Floor Line
2" Pipe
From cases
Buffer
4" Min.
4" x 2" Reducer
Distance is from
bottom of the 4"
pipe to the top
of the 2" pipe.
To
Vacuum
Central
24"
Discharge Valve
Figure 1.
6’ Max.
3’ Max.
(VACUUM)
1/4" ID Tubing
Supplied by EVAC
2" Pipe
Activator
Brace
(Typical)
(Typical)
(SENSING)
1-1/2" Riser
(VALVE)
Distance allowed
by code
2" x 1-1/2" Reducer
20’ Max.
4" Min.
Distance is from
bottom of the 4"
pipe to the top
of the 2" pipe.
4" Pipe
Floor Line
2" Pipe
From cases
Buffer
4" x 2" Reducer
Figure 2.
24"
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 6.6.1
TRENCH DRAIN
FOR REFRIGERATED DISPLAY
EVAC Interface Valve, IFV-1
PIPING
CASES
WITH
1. Install conventional plumbing from the refrigerated
display case drain to an approved receptor.
future maintenance.
2. Provide under-slab or trench piping from the
receptor to the location of a vacuum drainage riser.
shown in Figures 1 through 5. The activator ports
or collapse.
3. Near the riser make a drop into a section of piping
called a buffer using (2) 90O. The drop is to be a
minimum of 4" as detailed.
4. The buffer is configured using 2" pipe and fittings.
As required reduce the under-slab piping using
bushings.
5. Install a buffer section of piping as detailed and
make a 90O turn into the vacuum drainage riser.
VALVE, IFV-01
1. Install a 45O-wye fitting in the vacuum branch or
main. This allows for installation of the discharge
valve. The wye fitting may be rolled a maximum of
45O from vertical as shown in Figure 2. Allow for the
maximum riser height of 22 feet and a maximum
distance of 3 feet from the riser to the wye fitting
dropping into the main/branch.
45O
Figure 3.
to tubing.
Pipe roll at wye.
Manual
Operator
brace between the riser and the discharge valve, but
within 6 inches of the riser pipe itself.
Vacuum
Supply
To
Buffer
Sensor
Figure 4.
Activator.
To
Discharge
Valve
Figure 5.
Activator.
© 1998
Envirovac, Inc.
Section 6.6.1
888 438 3822 • 815 654 8300 • Fax 815 654 8306
VACUUM DRAINAGE PIPING
Check Valve
1/16"
Discharge Valve
12’ Max.
1’-0"
Activator
Activator
Reformer Pocket
8’ Max.
Figure 1.
Discharge Valve
Buffer
Buffer
Hanger Rod
3’ Max.
12" Max.
Hanger Rod
O
45
Strap
Pipe
Split-ring
Hanger
Uni-strut
Other Utility
Piping
Figure 3.
Figure 2.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 6.6.2
VACUUM DRAINAGE PIPING
4. Vacuum drainage riser must enter mains from above
using a wye pattern fitting. The wye fitting may be
rolled 45 degree from vertical. No tee fittings.
SCOPE
The following are the general rules for installing vacuum
drainage piping in a supermarket.
INSTALLATION
PIPING
OF
5. Inside piping surfaces and joints must be smooth,
free of burrs and obstructions.
VACUUM DRAINAGE
6. Locate clean-outs in the vacuum piping at the ends
of mains and branches and when there is a 90O
change in direction in an overhead branch or main.
1. Pitch vacuum drainage piping at a minimum 1/16"
per foot. This requirement may be met through the
pitch of the store roof from the front to the back
allowing for storm water drainage.
7. A single offset is allowed in vertical risers.
Note: Offset is not preferred and should only be
used to bypass structural obstructions.
See Figure 4.
1/16"
8. No common risers or ganged lifts are allowed except
for frozen food island and reach-in cases as shown
in Figure 1.
1’-0"
2. Brace piping at 5’ intervals and within 1 foot of each
change in direction as shown in Figure 2.
9. Reformer pockets as shown in Figure 3 may be
installed in order to recapture the slope of the vacuum drainage piping or to route under an obstruction.
3. Use only long radius elbows or (2) 45O elbows.
YES
YES
NO
Offset
1’-0" Horizontal
Maximum
Offset
Figure 4.
© 1998
Envirovac, Inc.
Section 6.6.2
888 438 3822 • 815 654 8300 • Fax 815 654 8306
SECTION 7
Table of Contents
This section contains sample specifications that can be used by the designer for construction documentation.
SECTION 7.1 — EVAC VACUUM COLLECTION SYSTEM DRAINAGE PIPING
SECTION 7.2 — EVAC VACUUM COLLECTION SYSTEM
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 7.0.0
EVAC SECTION
EVAC Vacuum Collection System Drainage Piping
1.
GENERAL
2.
EQUIPMENT
1.1
Installers scope of work
2.1
Vacuum collection system
A. The intent of this specification, together with accompanying Drawings is to provide a complete operating
installation, including, but not limited to the following
principal items.
1. The EVAC System is to be separate from the
sanitary plumbing system. As shown on the
drawings, the refrigerated display case condensate collection system shall be EVAC and the
sanitary system shall be plumbed conventional.
2. All waste and drain piping for the refrigerated
display cases shall be a complete and operational vacuum (EVAC) system.
3. Vacuum drainage piping is reduced in size and
also requires the use of specific materials in
order to fully utilize the vacuum process.
Installing Contractor is to pay close attention to
sizing and shall not deviate from design.
Note: Conventional venting is not required
and shall be installed only as sized and
shown on drawings.
5. The EVAC system is to include all fixtures and
fittings as specified in the EVAC Fixture
Schedule and the EVAC Vacuum System is to
be provided complete to include but not limited
to all interface valves and the Vacuum Central
Module.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
A. The vacuum collection system shall be by EVAC.
The system is to include all fixtures and fittings as
specified in the EVAC Fixture Schedule and the
Central Vacuum System is to be provided complete
to include but not limited to all interface valves and
the Vacuum Central Module.
2.2
Piping (Supplied by Installer)
A. Vacuum Drainage Piping
1. Vacuum drainage piping for the vacuum
collection system through out the entire
installation shall be as follows:
a. Vacuum drainage piping shall be copper,
hard drawn Type "M" tubing with wrought copper
fittings, soldered (95.5). The wye fittings shall
be DWV fittings. Installation drawings provide in
detail the fitting requirements for this installation.
Installing Contractor shall not deviate from these
requirements. Failure to comply with the
specified installation shall require the Installing
Contractor to replace all improper fittings or
piping arrangements with those specified at no
additional cost.
OR
a. Vacuum drainage piping and fittings shall be
schedule 40 PVC or equivalent. Wye fittings are
the only fittings that may be DWV. Pipe and fittings shall be solvent welded with the use of a
primer for visual joint inspections. Installation
drawings provide in detail the fitting requirements for this installation. Installing Contractor
shall not deviate from these requirements.
Failure to comply with the specified installation
shall require the Installing Contractor to replace
all improper fittings or piping arrangements with
those specified at no additional cost.
© 1998
Envirovac, Inc.
Section 7.1.0
EVAC SECTION
EVAC Vacuum Collection System Drainage Piping
b. For this vacuum collection system installation it is crucial that during the piping connection
process that all burrs are removed and when
using copper, that during the soldering procedure solder shall not be allowed to form on the
inside of the pipe and fittings. Burrs or formation
of solder can snag waste items and plug the
system, therefore all fittings shall be carefully
checked and any burrs or buildup of solder shall
be removed prior to installing the next section of
pipe or fitting. Failure to comply with the installation requirement shall require the Installing
Contractor to replace all improper solder fittings
or piping connections and reinstall as specified
at no additional cost.
3.
FACTORY SERVICES
3.1
An authorized EVAC service representative shall
provide installation inspection and on site startup
of the vacuum system. The EVAC service representative shall confirm to the owner’s project
manager and design engineer that the vacuum
drainage piping and collection system equipment
have been installed in accordance with the
plans, specifications and manufacturer’s
recommendations.
3.2
The EVAC service representative shall provide a
maximum of two installation site inspections and
one system start up at no addtional cost. Site
visits exceeding the above will be billed to
the owner.
© 1998
Envirovac, Inc.
Section 7.1.0
888 438 3822 • 815 654 8300 • Fax 815 654 8306
EVAC SECTION
EVAC Vacuum Collection System
1.4
1.
GENERAL
1.1
Related documents
A. Drawings and general provisions of the Contract,
including General and Supplementary Conditions
and Division 1 Specifications Sections, apply to this
Section.
1.2
A. Submit product data including rated capacities of
selected models and weights (shipping, installation,
and operation). Indicate materials, finishes, dimensions, required clearances, and methods of assembly of components; and piping and wiring connections for the equipment being provided by EVAC.
1. Vacuum central
2. Vacuum interface valve
3. Buffer piping
Summary
A. EVAC vacuum collection system including piping,
specialties and controllers as provided by EVAC.
B. Operating and Maintenance manuals:
(EVAC Rep)
(Phone #)
B. Service: EVAC service representative to provide
service as follows:
1. System start-up
2. Installation inspection
C. Provide the following electrical work as work of this
section, complying with requirements of Division-16
sections:
1. As required, control wiring between field
installed controls, indicating devices, and unit
control panels.
1. Complete vacuum system.
C. Submit detailed installation drawings for complete
system. The drawings are to clearly identify all
components being supplied by EVAC and Installing
Contractor.
1.5
System performance requirements
A. Provide components and installation capable of
producing piping systems with following minimum
working pressure ratings, except where otherwise
indicated:
Quality assurance
A. Comply with ASME B31.9, "Building Services
Piping", for materials, products, and installation.
B. Electrical Component Standard: NFPA 70, "National
Electrical Code"
C. Listing and Labeling: Provide equipment that is listed
and labeled.
2. Power supply wiring from power source to the
vacuum central electrical control panel.
1.3
Submittals
1. The Terms "Listed" and "Labeled" as defined in
the "National Electrical Code," Article 100.
1.6
Material handling
A. Contractor shall be responsible to protect all vacuum
product as supplied by EVAC from the environment
and construction debris, dust, and paint. No EVAC
equipment shall be stored outdoors.
1. EVAC Vacuum Collection Systems: Subject to
manufacturer’s recommendations.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 7.2.0
EVAC SECTION
1.7
b) The control panel shall provide the following
alarms in the form of powered outputs from
the logic controller:
Extra materials
A. Furnish extra materials matching products installed
as described below to Owner. Package them with
protective covering for storage and identify with
labels clearly describing contents.
2.
PRODUCTS
2.1
Manufacturer
1. Low Vacuum Alarm
2. Block Level Alarm
3. Motor O.L. Alarm
a) A MANUAL/OFF/AUTO switch shall
be provided for each vacuum pump.
3. Vacuum Interface Valve
a) EVAC model number 2999799
.
b) The interface valve shall be operated using
the vacuum pressure from the vacuum
piping as maintained by the vacuum central.
A. The following components of the vacuum collection
system shall be supplied by EVAC.
2.2
A. The vacuum collection system shall be a packaged
unit consisting of vacuum tank(s), vacuum pump(s),
electrical control panel and all necessary fittings and
ancillary equipment to provide full automatic operation of the system.
B. The following list delineates the major components
being provided in this bid package by EVAC for the
vacuum waste collection system. Reference drawings and other specifications for other components
being supplied.
1. Vacuum Central
a) EVAC Model SMC230-30H
2. Control Panel
a) The control panel shall be designed in
accordance with the National Electric Code
and shall be constructed with a NEMA 12
enclosure. The control panel may be
constructed of UL listed components. A logic
controller mounted in the control panel shall
operate system controls. The vacuum pump
controls shall be arranged to provide
automatic operation of the vacuum pumps
be means of a vacuum switch.
Electrical requirements:
230 VAC, 3 Phase, 60 Hz
© 1998
Envirovac, Inc.
Section 7.2.0
4. Buffer
a) EVAC model number 2999799
3.
EXECUTION
3.1
.
A. General: Comply with unit manufacturer’s written
installation instructions and with local authority for
installation of complete system.
B. Install units with clear space for servicing.
C. Vacuum System Design Requirements:
1. The vacuum central discharge line is to flow in to
the sanitary waste system with a minimum
physical air gap as specified by code.
2. Vacuum drainage piping inside piping surfaces
shall be smooth and free of burrs, weld bead
protrusions, and abrupt changes in cross
section.
3. Where a joint is made in which the inside
diameter of the vacuum drainage pipe and fitting
do not meet flush, then the inside of the pipe
must be taper-reamed to produce a smooth
transition.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
EVAC SECTION
12. Branch lines shall be sloped toward the
collection main and the collection mains shall be
sloped toward the vacuum tank. Slope shall be
a positive 0.50%, (1/16" per foot), to the
collection system (not including lifts associated
with pockets). Please note this requirement may
sometimes be met by following the slope of the
roof as long as the roof is sufficiently pitched for
storm water drainage.
4. All right-angle bends in the vacuum drainage
piping shall use five diameter radius bends or
two 45O elbow fittings.
5. Line clean-outs shall be located at no greater
than 60-foot intervals in a vacuum line. There
shall be no more than one 90O change in pipe
direction between clean-outs.
6. A clean out shall be located at the end of all
vacuum mains and at the end of a branch
unless the branch line serves a single fixture
that discharges into the main from above.
7. Wye-branch fitting in vacuum drainage piping
shall be positioned so that branch lines enter the
wye-branch fitting at a 45O angle measured in a
vertical plane from the horizontal
8. Where vacuum drainage piping is to proceed
vertically upward, a small pocket shall be placed
in the horizontal pipeline immediately preceding
the vertical rise. This pocket is placed to provide
a collection point for liquid drainage that drains
from the vertical pipe section while the system is
static. These pipeline pockets shall be fabricated
from 45O elbows and shall have a clean out at
the inlet to the pocket unless the pocket is
immediately adjacent to a fixture.
9. All risers shall enter the main from the top rather
than from the bottom or side.
10. A transport pocket shall be located at approximately 140-foot intervals in a vacuum drainage
pipe, measured from the farthest fixture in the
vacuum main.
11. Vacuum tank to vacuum pump piping, and
vacuum pump vents shall be installed without
dips or pockets in which water can accumulate.
A considerable amount of water vapor can be
expected through this piping. The vacuum pump
suction piping shall rise to the highest required
elevation immediately after leaving the vacuum
tank. The pipe shall connect to the vacuum
pump inlet without another rise.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
3.2
Connections
A. Installing contractor is responsible for all final
connections from fixtures; either owner supplied or
contractor supplied to the vacuum collection system.
B. Installing contractor is responsible for interconnecting the entire owner furnished equipment at the
central module system. This includes waste and
vacuum drainage piping and valves.
C. Installing contractor is responsible for coordinating
all electrical connections.
3.3
Field services
A. An authorized EVAC service representative shall
provide installation inspection and on site startup of
the vacuum system. The EVAC service representative shall confirm to the owner’s project manager and
design engineer that the vacuum drainage piping
and collection system equipment have been installed
in accordance with the plans, specifications and
manufacturer’s recommendations.
B. The EVAC service representative shall provide a
maximum of two installation sinspections and one
system start up at no addtional cost. Site visits
exceeding the above will be billed to the owner.
3.4
Commissioning
A. Preparation: Installing contractor to perform the
following checks before startup:
1. Systems tests are complete including vacuum
leak testing.
© 1998
Envirovac, Inc.
Section 7.2.0
EVAC SECTION
2. Damaged and defective specialties and
accessories have been replaced or repaired.
3. There is clear space for servicing of specialties.
B. An authorized EVAC service representative shall
perform system startup in accordance with manufacturer’s recommendations. The representative shall
provide the owner’s project manager and design
engineer verification of the completion of system
startup.
3.5
Adjusting
A. Adjust operation and correct deficiencies discovered
during commissioning.
3.6
Demonstration
A. Provide owner with Operating and Maintenance
Manuals related to startup and servicing of all
vacuum equipment.
3.7
Protection
A. Protect equipment drain lines during remainder of
construction period to avoid clogging with dirt and
debris and to prevent damage from traffic and
construction work.
B. Place plugs in end of uncompleted piping at end of
day or when work stops.
© 1998
Envirovac, Inc.
Section 7.2.0
888 438 3822 • 815 654 8300 • Fax 815 654 8306
SECTION 8.0
LIMITED WARRANTY STATEMENT
Envirovac warrants to Buyer and any customer of Buyer or end user, if applicable, that the Products are free from
defects in material or workmanship under normal use or service, for the sooner of (a) eighteen (18) months from the
date of delivery of the Products by Seller to Buyer, and (b) twelve (12) months from the date of Initial Start Up by
Buyer or a customer of Buyer or end user (the "Warranty").
The Warranty applies only where the Products have been properly stored, installed, operated and maintained in
accordance with Envirovac’s instructions.
FOR THE FULL SCOPE OF, AND LIMITATIONS UPON, ENVIROVAC’S WARRANTIES AND BUYER'S OR ANY
END USER’S REMEDIES, PLEASE SEE ENVIROVAC’S STANDARD TERMS AND CONDITIONS.
IN NO EVENT SHALL ENVIROVAC BE LIABLE FOR ANY CONSEQUENTIAL, INCIDENTAL OR SPECIAL
DAMAGES WHATSOEVER.
Except as provided in Envirovac’s terms and conditions, ENVIROVAC MAKES NO WARRANTY OF ANY KIND
WHATSOEVER, ORAL OR WRITTEN, EXPRESS OR IMPLIED, BY COURSE OF DEALING OR USAGE OF TRADE,
AND ALL IMPLIED WARRANTIES INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
PARTICULAR PURPOSE, ARE HEREBY DISCLAIMED BY ENVIROVAC.
Envirovac’s sole obligations and Buyer’s sole remedies under its Warranty with respect to Products shall be to replace
the Products or any part thereof sold by it which, in Envirovac’s judgment, is defective as set forth above with a similar
Product or part, or at Envirovac’s option, to repair the Product or part(s) thereof subject to the terms and conditions set
forth below.
If Envirovac has received proper certification, and a warranty claim is made in accordance with the terms and
conditions during the first ninety (90) days after initial start up, then Envirovac shall reimburse Buyer or the customer
or end user for labor charges directly related to the cost to remove any defective Product or any part thereof and
replace the same. Such reimbursement shall be based upon standard Product and component replacement times
and labor rates as determined by Envirovac, in its sole discretion.
888 438 3822 • 815 654 8300 • Fax 815 654 8306
© 1998
Envirovac, Inc.
Section 8.0.0

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