Cat 32pg FSS 09-04 ING

Transcription

Product catalogue
The most effective method of delivering conditioned air
In today’s competitive office market, building owners, designers, and facility managers are
seeking up-to-date information about new technologies, design approaches, and products that
can improve the value and performance of their building. Underfloor air distribution is a method of
delivering space conditioning in commercial buildings that is increasingly being considered as a
serious alternative to conventional ceiling-based air distribution systems because of the significant
benefits that it can provide. [...]
The installation of raised access flooring incorporating an underfloor air distribution system is most
easily achieved in new construction. In large buildings the ceiling based ventilation zone is often in
the region of 600mm. By increasing a cable void floor from 150mm to 300mm and doing away with
the ceiling void ventilation zone it is easy to find a net saving in building height in the region of 10%
or more. An integrated design can, in fact, regularly lead to reduced floor-to-floor heights and
thus overall construction height. Some designs may allow the ceiling plenum to be completely eliminated offering even greater savings.
CBE Summary Report October 1999
Hiross Flexible Space System does much
more than just maintain a comfortable room
temperature. In addition to offering
unparalleled flexibility for offices, it ensures
high indoor air quality without the
normal high costs associated with this
benefit.
Whether you are a building owner, an
architect, a consultant or a mechanical
system design engineer, Hiross FSS
representatives are pleased to work with
your specific requirements. Contact us
to learn more about designing a Flexible
Space System suited to your building.
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4
Hiross flexible Space System. Simplicity wins!
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Zone Air Handling Units and Terminal Units
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The Hiross-C System: underfloor air supply and return
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The Hiross-V System: underfloor air supply and space or ceiling return
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Control System: BMS integration, Hirovisor IP and FSS Client
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Air Handling Units: Hiross-C and Hiross-V
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Terminal Units: Hiross TU
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Accessories: Hiross FA and grilles
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Your most frequent questions
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Hiross Flexible Space System
1° STEP
• Chiller
• Boiler
• Access Floor
• (Central Fresh Air)
Exhaust Plant
3° STEP
• Hiross FA
• Hiross TUs
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Simplicity Wins!
… plug & play System
Hiross FSS lends itself to be fitted
in virtually any building (new or old)
making use of commonly
available utilities
(chiller, boiler, Fresh Air exhaust...)
in vertical risers suitably
located in building shafts.
A feature of the system
is the virtual elimination of
horizontal distribution pipe-work
and ventilation ductwork
which is at the heart of the system’s
extraordinary flexibility
2° STEP
• Hiross AHU
• Secondary Piping
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Zone Air Handling Units
The zones
The building is generally divided up into several zones per
floor (up to 250-300 m2) and these zones are defined by
means of fire barriers placed in the floor void.
The system makes use of centrally generated chilled /hot
water supplied to each air handling unit.
What inside a zone
One AHU is installed for each zone to supply recycling treated air through the under floor
void distributing it through the low pressure plenum (max 20 Pa). Fan assisted terminal units
(TU) fitted with on/off air regulating damper introduce this air into the office space above
according to the dictates of their user friendly on board controls.
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and Terminal Units
Slab: part of our system
The concrete slab and the raised floor form part of the “channel”
which conveys the air where needed and with study the floor
thermal mass may be used for additional energy saving.
The Systems
Fresh air
External air may be pre-treated using centralised air make-up units and mixed
with the return air at each zone AHU unit. If the outside air is fully treated, i.e.,
incorporating humidification and dehumidification, this usually avoids the need
for the use of a humidifier in the zone AHU unit, although, occasionally an individual zone may require special humidity control.
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The Hiross-C System
Under floor supply and return channels
are created by means of baffles
(underfloor air partitioning) placed in
the access floor void.
Hiross-C Conditioned Air
Modules are suitably located throughout the office
space to suit thermal
demand and supply conditioned air locally to serve
the needs of the space.
The Hiross-C units deliver conditioned
air into the floor void supply plena.
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Underfloor air supply and return
Return air grilles are positioned in the floor over return
plena to permit the return of spent air to the AHU unit for
re-conditioning
Set into the floor over supply plena are
individually controlled Fan terminals of either
recessed or floor standing configuration.
These terminals, Hiross-TUs, introduce air
into the space above in accordance with the
dictates of their own on board controls
system.
It’s your system if you want
The low underfloor pressure in the
two sections, supply and return, is kept
at the desired level by means of a suitably sized under floor by-pass in the
underfloor air partitioning: this can be
easily changed and baffle can also be
repositioned or modified, if necessary
as space reconfiguration demands.
•
•
•
•
•
•
•
•
To reduce overall construction cost
To reduce overall construction time
To design without a false ceiling
To minimise cross contamination risk
To treat air only in the occupied breathing zone
To improve comfort
To increase the effect of thermal mass storage
To find a solution in height limited refurbishments
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The Hiross-V System
The conditioned air
is supplied by the zone AHU
to the under floor
plenum but the return spent air
shall be drawn back to the AHU
through the false ceiling or the
space above the access floor.
The Zone air handling unit must
operate in a Variable Volume mode
to avoid over pressurization of the
floor void The Terminal Units (Hiross-TU)
operation shall automatically
determine the air flow needed from
the zone Hiross-V unit depending
upon the quantity of terminal units
dampers which are open or closed.
This shall automatically and simply
guarantee constant under floor
pressure within the specified limits.
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The air flow change will be caused by a variation in voltage
input to the fans approx between 110-120V (0%) and 230V
(100%) through communication between the Controller of the
Hiross-TUs (open-close dampers) and the Controller of the
AHU (namely the Hiromatic) operating the change by means
of a well proven algorithm.
Underfloor air supply and space or false ceiling return
The whole under floor void shall be used as
a supply air plenum to distribute the
conditioned air thus enhancing thermal
mass storage.
It’s your system if you want
The Hiross-V could be allocated
into a technical room with grilles
for air return.
The Fresh Air could be directly
introduced into the room
and it will be mixed with recycling air.
•
•
•
•
•
To return air via a false ceiling or the room space
To use the existing false ceiling (refurbishment)
To use the full access-floor plena as supply channel
To avoid the usage of baffle under the floor
To increase the effect of the thermal mass storage
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Control System
Hiross range features are “state of the art” in terms of control and communication solutions. Although each
unit can work in stand alone mode, the optimal performances are obtained once they are connected in a
local area network through a high speed communication bus. The network enables each controller to
know what the others are doing and to keep the entire system updated on the local condition in order that
the air is always treated in the most efficient way in terms of comfort as well as energy consumption.
On each Hiross-C and Hiross-V zone AHU there is a micro-processor
controller which autonomously manages each unit. There are several features available within the standard control system like the double stage control algorithm, the LAN among Hiross main units and
terminal units. Temperature alarms as well as humidity (where the
unit is featured with Humidifier) high-low warning and alarm notification, loss of airflow. It offers Volt-free contacts available for simple
remote monitoring of alarms.
There are also different ways to display the operating data enabling the user the possibility to choose the most suitable solution for his needs either immediately or during the life of
the product without wasting any investment.
• The simple Service display, useful to get the overview of the unit
where it is installed; it ensures a reliable and flexible unit control.
Symbols and codes indicate operating status and alarms.
• It enables the full set-up of the unit providing the programming of
room temperature and humidity thresholds for local monitoring (standard alarms include high/low temperature and humidity, fan failure,
heater over-temperature).
• All facilities are menu driven to avoid the need for specialist engineers or lap top computer devices. The user can quickly familiarize himself with the control choices for re-configuration and optimization of
use and carryout adjustment at minimal cost.
The Hiross-TU controller is a microprocessor, it is fitted onboard of
each Terminal Unit to which occupiers are granted access. It also obviates the need for specialist engineers.
The easy to use control with LCD display permits users to familiarize
themselves with the controls and make selected adjustment in a matter
of minutes and by any service personnel within 15 minutes for full use
and re-configuration.
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Control System
A user-friendly-display for visualization, data entry and timer functions can communicate up to 16 Hiross-C/Hiross-V. The display may
be remotely installed or fitted in one of the zone AHUs.
It shall be possible to set different control parameters for each HirossC/Hiross-V by means of the user-friendly-display and push button
arrows. All parameters are divided into two main menus (User and
Service menu) containing 7 sub-folders.
!
A system specific control has been developed seeking to ensure optimum efficiency in operation,
and a principle feature of operation is the continuous modulation of the supply air temperature to match
to the direct needs of the zone being served. Standardly this is achieved by modulating control of CW
and LPHW coil options, and ensures there is no unnecessary overcooling followed by wasteful supplementary reheating by the Hiross-C/Hiross-V.
The Hiross-TU units serving the occupants within the working space allow choice
of personal control by onboard complementary control systems. Each individual
office has the possibility to efficiently maintain its own microclimate. The same
is true throughout any open plan areas, where desking and low height partitions
similarly sectionalise areas that then become defined micro-climates.
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Control System
ONLY
ED
FACE
The Hirolink for BMSs is the interface between a whole
Hironet network of units with Microface (and Hiromatic).
Such a solution has been available for the last decade and
thousands of installations in the world are working with such
integration.
14
ER
All relevant parameters managed by the mentioned proprietary microprocessors could be checked, set and modified by a Building Management System through the
usage of Hirolink.
E INT
•
ON
When your building is equipped with a Building
Management system the effort to integrate Hiross units is
almost plug and play.
YOU NE
BMS Integration
Control System
Hiross FSS Communication suite
75% percent of the lifecycle costs of a facility are incurred in the operation and maintenance of that facility after it is
built. We work with our customers to “build with the end in mind”, helping them design and build A/C systems that
provide for maximum productivity and efficiency - during the construction phase and throughout the life of the
system.
For this reason we offer an integrated solution which can be tailored according to the needs of the customer. This
permits easy monitoring and adjustment of the installation from a central management point without the need for
operatives to move around the building inspecting, checking and adjusting equipment individually. Further more the
IP network permits entry onto the system from virtually any point in the building to monitor and control the units from
remote locations.
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Hiross Flexible Space
... Hirovisor IP
... the remote
event list
• From the PC
of the central supervision
... parameters
setting
Re.M. Records
Monitoring
The tree is built via icons (that can be named by preference) that correspond to the unit controls and
mirror the sites architecture..
ALARMS: The icon colour changes to red, when alarms involve the specific control or if connection is
lost. An alarm is also notified by a sound signal, by a red banner (with the name of the alarm) that
appears in the visualisation sheet, and by a number appearing next to the Events folder (the Events
folder records all the events taking place)
DATAPOINTS: In each sheet there are sub-folders that contain the unit specific configuration data and
parameters.
SECURITY: 3 levels of passwords are available to protect the system. The possibility to change unit
parameters is given to authorised users only either via the main application or via a Web interface.
Re.M.: through the recording module it is possible to have the visualization and record of each of the
values, visualised by the Hiross FSS Communication Suite.
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Communication Suite
... FSS Client!
Terminal Unit:
temperature setpoint
and fanspeed
With Hiross communication Suite each user
can take control of his microclimate directly from
his PC. Through a client application running on
the PC, the user can change the fan speed as
well as the temperature set point of his/her
allocated terminal unit.
FSS Client, is an easy software application that allows individual users to access from
their PC the information of the Hiross-TU and to vary the setpoint and the fanspeed.
Both. Temperature setpoint and Fan speed can be modified in two ways:
• Acting on the round knob for rough variation
• Acting on spin up/down arrows for sharp variations to tune the precise value.
The first black Bar on the top of the HTML page indicates the index of the HirossTU, name of Hiross-C/Hiross-V and name of the remote server connected to FSS
Client. The light blue Bar shows the Connection status and the actual Access
Level for the user.
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Hiross-C
Conditioned air modules Hiross-C generate conditioned air and deliver it into the underfloor supply plenum and draw air back through grilles into return under floor plenum
• 3 models:
Hiross-C15, Hiross-C25, Hiross-C35
• Cooling Capacity: up to 32 kW (26°C-50%RH; CW in/out 7-12°C)
• Heating Capacity: up to 50 kW (20°C-50%RH; HW in/out 80-70°C)
• Airflow:
up to 9000 m3/h
• Electric heater:
up to 14,85 kW
• Dimensions:
length 1000-2000, height 1950, depth 750 mm
Hiross-V
Hiross Variable air flow units Hiross-V generate conditioned air to be delivered into the
underfloor plenum and draw back through the space or unducted through the false ceiling
• 4 models:
Hiross-V11, Hiross-V22, Hiross-V33, Hiross-V44
• Cooling Capacity: up to 40 kW (26°C-50%RH; CW in/out 7-12°C)
• Heating Capacity: up to 58 kW (20°C-50%RH; HW in/out 80-70°C)
• Airflow:
up to 9500 m3/h
up to 9 kW
• Dimensions:
length 850-1450, height 1950, depth 750-900 mm
Return and Supply Air Grilles
FGS return air grilles are mainly used with Hiross-C. These grilles have been specially
designed to efficiently return spent air to the plenum and are supplied with a patented
height adjusting (from 30 to 52 mm) mechanism to adapt to the thickness of any floor tile.
• Weight:
2,5 kg
• Dimensions: 150 x 599 mm
FGC grilles, in addition to the above specification FGC grilles, are fitted with manually
controlled opposed blade damper for balancing purposes. (height adjustment from 30
to 52 mm) This grille may also be used to supply air when the degree of control offered
by Hiross Terimnal Units is not required. For example in a Photocopy room or store.
• Weight:
3,0 kg
• Dimensions: 150 x 599 mm
Sound Attenuator & Collecting Tray
Both grilles (FGC, FGS) can be fitted with accessories such as collecting trays and
sound attenuators, for areas where the strictest sound control is required.
Sound Attenuator
• Dimension 400 x 535 x 100
Collecting tray
• Dimension 150 x 598 x 130
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Hiross TU4
The floor recessed Terminal Unit 4 quietly draws air from the plenum for distribution in
the work space. It requires 215 mm clearance within the floor void..
• Airflow:
up to 670 m3/h
250-500-1000 W
• Dimension:
215 x 600 x 600 mm
• Cooling capacity: up to 2,26 kW (up to 10°C delta T)
Hiross TUC
The console Terminal Unit TUC quietly draws air from the plenum for distribution in the
work space. No piping is required.
• Airflow:
up to 700 m3/h
250-500 W
• Dimension:
500 x 840 x 235 mm
Hiross TUi
The floor recessed Terminal Unit idea quietly draws air from the plenum for distribution
in the work space. It requires 150 mm clearance within the floor void
• Airflow:
up to 500 m3/h
300 W
• Dimension:
150 x 600 x 600 mm
Hiross FA7 & Hiross FA5
Fresh Air may be separately introduced in each zone by a compact Fresh Air module
installed in the underfloor void. 3 Fan speeds and EU3 filter are standard in these units.
Hiross FA7
Hiross FA5
Airflow: up to 700 cu.m/h
Airflow: up to 500 cu.m/h
Dimensions: 560 x 450 x 200 mm
Dimensions: 403 x 403 x 150 mm
Hiross FA7plus & Hiross FA5plus
Outside air could also be used for night cooling effect and for energy saving when the
outside temperature could help the Unit to cool or to heat the zone.
Hiross FA7plus and Hiross FA5plus (for medium or low void applications) have been
developed for managing fresh air in the most intelligent way in order to save energy at
all suitable times.
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Hiross-C Unit
The Conditioned Air Module “Hiross-C” generates conditioned air to be delivered into the underfloor supply plenum and draws air back through grilles into return under floor plenum thus reducing or eliminating
the need for a false ceiling, offering up to 10% reduction of floor to ceiling height.
Chilled or hot water is supplied to a changeover coil or a double coil system (recommended).
The Hiross-C controls the temperature of the air in the floor void. The fantiles control the temperature in
the space. Because ductwork is not required in the ceiling void this void may be reduced by 300 to
450mm. The humidifier feature in each Hiross C offers energy saving through diversity in operation, compared with a central system.
Nominal heating capacities standard 3 rows coil
Air entering the unit at 26 °C, 50% rh. Underfloor pressure drop 20 Pa. Glycol percentage 0%.
Net underfloor void: 260 mm. Water temperature: 7/12 °C
MODEL
Airflow
(m 3/h)
Hiross C15
Hiross C25
Hiross C35
1500
2500
3000
4000
3500
4500
6000
7000
6000
7000
8500
9500
Fan
Power
(kW)
0,5
0,9
1,0
1,3
1,3
1,6
1,9
2,2
1,9
2,2
2,6
2,9
Water
flow
(l/h)
1600
2280
2600
3180
3390
4070
4950
5490
5850
6510
7470
8060
Water pressure drop (kPa)
coil
11,6
20
24
32
20,5
26,5
36,5
43
36
43
52
59
valve
Air
outlet
(°C)
total
6,4
13
17
25
11,5
16,5
24,5
30
13
16
22
25
18
33
41
57
32
43
61
73
49
59
74
84
13,1
14,6
15,2
16,1
14,4
15,2
16,1
16,6
14,1
14,7
15,3
15,7
Cooling capacity (kW)
total
sensible
9,3
13,2
15,1
18,5
19,7
23,7
28,8
31,9
34,0
37,9
43,5
46,9
Net.
sensible
6,9
10,3
11,7
14,3
14,7
17,6
21,4
23,7
25,3
28,2
32,4
35,0
Air entering the unit at 20°C,50% rh. Underfloor pressure drop 20 Pa. Glycol percentage 0%.
Net underfloor void: 260 mm. Temperature of the water entering the coil: 45°C
MODEL
Airflow
(m 3/h)
Hiross C15
Hiross C25
Hiross C35
20
1500
2500
3000
4000
3500
4500
6000
7000
6000
7000
8500
9500
Fan
Power
(kW)
0,5
0,9
1,0
1,3
1,3
1,6
1,9
2,2
1,9
2,2
2,6
2,9
Water
flow
(l/h)
600
1360
2210
3350
1750
2850
5200
5780
2950
4450
7550
8200
coil
0,2
6,4
18
41
5
14
45
54
8,6
19,3
57
66
valve
0,8
4,6
12
28
3
8
27
34
3,4
7,7
22
26
Air
outlet
(°C)
total
1
11
30
69
8
22
72
88
12
27
79
92
34,8
35,3
36,1
35,8
35,3
35,7
36,0
35,4
34,6
35,4
36,1
35,7
Total Heating capacity (kW)
7,5
12,9
16,4
21,3
18,1
23,9
32,4
36,4
29,7
36,5
46,3
50,4
6,4
9,4
10,7
13,0
13,4
16,0
19,5
21,5
23,4
26,0
29,8
32,1
Hiross-C Unit
Nominal heating capacities optional 1 row coil
Net underfloor void: 260 mm. Temperature of the water entering the coil: 80 °C
MODEL
Airflow
(m 3/h)
Hiross C15
Hiross C25
Hiross C35
Fan
Power
(kW)
1500
2500
3000
4000
3500
4500
6000
7000
6000
7000
8500
9500
0,5
0,9
1,0
1,3
1,3
1,6
1,9
2,2
1,9
2,2
2,6
2,9
Water
flow
(l/h)
coil
400
800
1100
1350
1000
1950
2300
2500
1300
1900
3100
4200
valve
1
7
12,5
19
11
34
56
66
4,7
10
27
48
Air
outlet
(°C)
total
1
4
7,5
11
6
24
33
39
4,3
9
24
44
2
11
20
30
17
58
89
105
9
19
51
92
35,7
35,0
35,0
33,6
35,8
36,6
35,0
34,1
34,3
35,0
35,6
35,8
8,0
12,7
15,2
18,4
18,7
25,2
30,5
33,5
29,1
35,5
44,7
50,8
Sound Pressure Level dB (A)
The instrument was positioned 1,5m above the ground level in front of the machine at a distance of 2 meters.
The noise data refer to Free Field Conditions and with the AHU positioned close to a wall:
Hiross C15
Hiross C25
Hiross C35
MODEL
Hiross C15
Hiross C25
Hiross C35
Air flow (m 3/h)
SPL base version
SPL add. Panels
Air flow (m 3/h)
SPL base version
SPL add. Panels
Air flow (m 3/h)
SPL base version
SPL add. Panels
Qty
2
3
4
1500
33
31
3500
36
35
6000
38
37
2000
34
32
4000
39
38
6500
39
38
2500
35
33
4500
41
40
7000
41
40
3000
39
37
5000
42
41
7500
42
41
Kvs
3500
41
40
5500
44
42
8000
44
43
4000
42
41
6000
45
43
8500
45
44
6500
46
44
9000
47
45
CW coil
7000
47
45
9500
48
46
Filters
Dimensions
sqm
n° folds
CWV
HWV
Electrical
Heating (kW)
fpi
sqm
HW coil
fpi
1000 x 410 x 88
1000 x 410 x 88
1000 x 445 x 88
1,23
1,23
1,40
7
7
8
6,3
10
16
4
4
6,3
4,5
4,5 or 10,35
10,35 or 14,85
12
12
12
0,80
1,21
1,76
8
8
8
Base Frame configuration
21
Hiross-V Unit
Hiross Variable air flow units Hiross-V generate conditioned air to be delivered into the underfloor plenum and draw spent air
back through the served space or unducted through the false ceiling thus allowing full use of the underfloor void as supply
plenum with no restrictions as to positioning of air terminal units. Chilled or hot water is supplied to a changeover coil or a
double coil system (Recommended). These factory wired modules continuously monitor and control the air temperature both
in the floor plenum and in the ambient for each assigned zone by means of the intelligent data link to each Hiross-TU.
High efficiency filters provide air cleanliness and an optional electrode steam humidifier (5 kg/h) provides humidity control.
Net underfloor void: 260 mm. Water temperature: 7/12 °C.
MODEL
Hiross V11
Hiross V22
Hiross V33
Hiross V44
Airflow
(m 3/h)
1120
2000
2500
3240
3000
4000
5000
5400
4000
6000
8500
9160
4000
6000
8000
8980
Fan
Power (kW)
Water
flow (l/h)
0,2
0,3
0,5
0,6
0,6
0,8
1,0
1,1
1,4
2,0
2,6
2,7
1,4
2,0
2,4
2,6
1550
2550
2880
3530
3280
3640
4860
5180
5290
7020
9140
9680
5540
7600
9540
10550
coil
valve
12
29
39
58
25
37
50
56
27
47
75
83
25
44
67
80
6
16
21
31
11
13
24
27
11
19
32
37
12
22
35
43
6
13
18
27
14
24
26
29
16
28
43
46
13
22
32
37
Air
outlet (°C)
total
10,4
11,4
12,0
12,7
12,9
13,4
13,8
14,4
11,4
12,3
13,4
13,7
10,7
11,5
12,2
12,5
Cooling capacity (kW)
total
sensible
8,9
14,1
16,6
18,5
19,0
24,0
28,4
30,2
30,1
40,8
53,3
56,3
32,2
44,3
55,7
61,3
Net.
sensible
6,0
9,9
12,0
14,3
13,8
17,3
20,5
21,7
20,6
28,9
37,8
39,9
21,5
30,6
38,7
42,6
Net underfloor void: 260 mm. Temperature of the water entering the coil: 45 °C.
MODEL
Hiross V11
Hiross V22
Hiross V33
Hiross V44
22
Airflow
(m 3/h)
1120
2000
2500
3240
3000
4000
5000
5400
4000
6000
8500
9160
4000
6000
8000
8980
Fan
Power (kW)
Water
flow (l/h)
0,2
0,3
0,5
0,6
0,6
0,8
1,0
1,1
1,4
2,0
2,6
2,7
1,4
2,0
2,4
2,6
1400
2300
2740
3420
3530
4460
5400
5760
4610
6410
8280
8890
4970
6980
8890
9790
coil
valve
3
10
15
23
15
23
35
39
9
17
27
32
6,4
14
22
28
5
13
19
29
12
20
29
33
8
16
27
30
9,6
19
31
37
Air
outlet (°C)
total
8
23
34
52
27
43
64
72
17
33
54
62
16
33
53
65
41,9
39,9
39,3
38,4
40,6
39,4
38,8
38,6
40,5
39,0
37,6
37,4
42,0
40,7
39,7
39,3
8,3
13,5
16,3
20,1
20,8
26,4
31,8
33,8
27,7
38,5
50,7
53,8
29,8
42,2
53,3
58,5
5,8
9,6
11,5
13,0
13,2
16,5
19,5
20,6
19,2
26,9
35,2
37,2
20,1
28,6
36,3
40,0
Hiross-V Unit
Nominal heating capacities optional 1 row coil
Net underfloor void: 260 mm. Temperature of the water entering the coil: 80°C
Fan
Power
(kW)
Airflow
(m 3/h)
MODEL
Hiross V11
Hiross V22
Hiross V33
Hiross V44
1120
2000
2500
3240
3000
4000
5000
5400
4000
6000
8500
9160
4000
6000
8000
8980
Water
flow
(l/h)
0,2
0,3
0,5
0,6
0,6
0,8
1,0
1,1
1,4
2,0
2,6
2,7
1,4
2,0
2,4
2,6
Air
outlet
(°C)
coil
500
580
760
860
1220
1400
1620
1730
1910
2450
2990
3100
1910
2450
2920
3100
valve
0,5
3,0
3,4
4,4
4,0
6,0
8,0
8,0
7,0
12,0
18,0
20,0
7,0
12,0
17,6
20,0
total
1,5
2,0
3,6
4,6
9,0
12,0
16,0
19,0
9,0
15,0
22,0
24,0
9,0
15,0
21,4
24,0
2
5
7
9
13
18
24
27
16
27
40
44
16
27
39
44
5,7
8,0
9,3
10,7
14,8
17,2
19,7
20,6
23,2
30,0
37,0
38,5
23,2
30,0
35,7
38,1
41,9
39,9
39,3
38,4
40,6
39,4
38,8
38,6
40,5
39,0
37,6
37,4
42,0
40,7
39,7
39,3
Sound Pressure Level dB(A)
The instrument was positioned 1,5m above the ground level in front of the machine at a distance of 2 meters.
The noise data refer to Free Field Conditions and with the AHU positioned close to a wall:
Hiross V22
Hiross V33
Hiross V44
MODEL
Qty
Hiross V11
Hiross V22
Hiross V33
Hiross V44
1120
33
3000
37
4000
38
4000
38
Air flow (m3/h)
SPL
Air flow (m3/h)
SPL
Air flow (m3/h)
SPL
Air flow (m3/h)
SPL
Hiross V11
1
2
3
3
Kvs
D=3
C=3
2500
43
4500
45
7500
51
7500
51
3000
45
5000
47
8500
53
8500
53
3240
46
5400
48
9160
55
8980
55
Filters
Dimensions
sqm
n° folds
CWV
HWV
Electrical
Heating (kW)
fpi
sqm
HW coil
fpi
510 x 745 x 100
510 x 598 x 100
695 x 650 x 100
695 x 650 x 100
0,05
0,95
1,41
1,41
12
10
11
11
6,3
10
16
16
4
4
6,3
6,3
4,5
5,85
9,0
9,0
12
12
14
14
0,46
0,77
1,26
1,26
14
14
12
12
Fan speed reduction algorithm
Volts
2000
39
4000
42
6000
46
6000
46
1500
34
3500
39
5000
41
5000
41
B=3
Th Reduction =
Vmax - V min
N° FTU
=
CW coil
220 - 130
15
= 6 V/damper
A=6
Group
A
B
C
D
Vmax
202
187,5
171
N°
6
3
3
3
K
0,5
0,8
0,9
1
R A = 6 x 6 x 0,5 = 18 V
220 - 18 = 202
153
Vmin
Rx = N° x Th Red x K
R B = 3 x 6 x 0,8 = 14,4 V
202 - 14,5 = 187,5
N° FTU
23
Hiross TU
Hiross TU4
The floor necessed Terminal Unit Hiross TU4 uses the air from the underfloor void to cool and to treat the space above at the required temperature.
A specially developed multi-functional control permits personalized temperature and air flow control at each terminal unit and offers the very highest standard in intelligent control.
The Hiross TU4 is equipped with 2 grilles: a supply grille fitted with a hatch
to enable the user to access the controller and return grille to allow the room
air to be drawn by the FTU during recirculation mode.
On board temperature sensors control automatic damper operation during
cooling/heating or recirculation mode. An optional electric heater is available.
Fresh air is constantly ensured even during recirculation mode by a special adjustable by-pass.
Since no piping or ducting is required, units can be installed and repositioned in few minutes.
Recirculation Diagram
Cooling-Heating
Easy monitoring and remote control is achieved through the stand alone
Hirovisor or via the selected BMS.
• Cooling capacity up to 2,26 kW (delta T= 10°C)
• Airflow: up to 670 m3/h
• fan absorbed power 54 W
• electric supply line 230V-1ph-50 Hz
• Electrical heater : 250-500-1000 W
Regulation of Setpoint
The room temperature required by the user is set by means of push buttons located on the
controller face plate/display.
Electronic Heater Control
Using the Fatronic it is possible to set a delay between fan actuation and electrical heater activation. If conditions
are not as required at morning start-up heat is provided by the AHU. This ensures greater energy efficiency and
avoids current peaks which could be caused by simultaneous electrical heaters starting.
There are further set-up operational choices available for Hiross-TUs to work as Master and Slave unit(s) communicating and synchronising via the network. This permits all Hiross-TUs within each microclimate to be fully synchronised for best efficiency in operation.
24
Hiross TU
Hiross TUC
The console Terminal Unit Hiross TUC quietly draws air from the plenum for
distribution in the work space. It has a sophisticate design and an attractive
appearance taking up a minimum amount of space and allowing quick office
layout reconfiguration. No piping is needed only electrical connection is required.
The Fatronic control permits personalised temperature and airflow control and
offers the very highest standard in intelligent control.
• Electrical heater: 250-500 W
Diagram
Recirculation Diagram
Cooling-Heating Diagram
Recirculating air enriched with fresh air is continuously “oxidising”
the underfloor space leaving no chance for anaerobic growth and is
continuously reducing the CO2 into the living space. As it is possible to see by the operation diagrams (see left and right), the fresh
air introduced into the floor void quickly raises the concentration
of fresh air into the space above and it is partially introduced also
when terminal damper are closed thanks to the adjustable by-pass.
Fan speed modulation
Fan speed can be modulated continuously between a minimum and a maximum value,
according to the user’s requirements. By using the controller it is possible to select
different fan speeds or to lock the fan at a fixed speed.
Electronic Control
For both units, the temperature in the room or office space is controlled by an air flow damper which is governed
by an electronic microprocessor controller in association with two air temperature sensors. The first sensor
identifies the room air temperature sensor and the second the underfloor air temperature. By comparing these two
values with the chosen setpoint the microprocessor is able to select the correct position of the damper.
This facility allows all features of the Master to synchronise with the Slave unit(s) for a fully interactive control solution. All units are available for remote supervision at the HirossC or even at the Hirovisor or BMS if all monitoring features are requested and implemented and the complete cable network installed.
25
Hiross TU
Hiross TUidea
The floor recessed Hiross TUi (Terminal Unit idea) is the latest born
into the Hiross Terminal Unit family.
It can be installed in the space of one floor panel without removing any
other floor panel or stringer because the overall dimensions are 600 x
600 mm.
The total height is only 150 mm and for this reason it’s the most suitable for limited floor void height applications where optimum airflow is
anyhow required.
• Electrical heater: 300 W
The Fatronic control permits personalised temperature
and airflow control and offers the very highest standard
in intelligent control.
• Regulation of setpoint
• Electronic heater control
• Fanspeed modulation
• Master or Slave configuration
Available grilles design
26
Accessories
Hiross FA7 & Hiross FA5
The fresh air modules Hiross-FA7 and Hiross-FA5 are decentralised units which draw air from out-side and inject it into the HirossC air return section of the underfloor path or in a suitable section
provided by the Hiross-V unit.
They have been designed in such a way that they can be located
under a single floor tile allowing easy access for maintenance and
removal if required.
Overall dimensions
Filter
Speeds
Fan
airflow
Hiross FA 7
450 x 560 x 200 mm
EU3
3
centrifugal fan
up to 700 cu.m/h
Hiross FA 5
403 x 403 x 150 mm
EU3
3
centrifugal fan
up to 500 cu.m/h
Hiross-FA7 and Hiross-FA5 consist of a welded power painted cabinet, 3 speed centrifugal fan, on/off switch, antivibration base, terminal box for electrical connection, flanged intake and discharge connection.
Hiross-FA7 plus & Hiross-FA5 plus
Night Cooling and Energy saving
The potential benefits of overnight free cooling in buildings have
been known for some time.
Computer simulation tests have shown that the outside air can be
used:
• For reducing the sensible room peak cooling load by 9%
• For reducing energy consumption and CO2 emissions due the
ventilation and cooling systems by 19%
These reductions would be achieved with no additional capital plant
investment. All that is needed is the use of Hiross-FA plus. One, or
more, Hiross-FA plus could be connected to each Hiross-C/HirossV units and they can dialog together in order to use the outside air for energy saving. An outside air temperature sensor will adjust the total amount of outside air on the basis of the internal setpoint requirements.
27
Accessories
FGS & FGC floor grilles
Robust Floor grilles suitable for normal office use with light aluminium anticorodal alloy fins, featuring a straight profile, and 4
spacers constructed with aluminium alloy are available.
The grilles can be fitted with or w/o regulating dampers and may
be used in either return or supply mode as required.
A patented Height adjustment (from 30 to 52 mm) mechanism
permits grilles to be levelled to the chosen floor finish.
Collecting tray & Sound Attenuator
TEST Sound Attenuators SOUND SOURCE SOUND SOURCE
point 1 dB(A)
point 2 dB(A)
A
without
103,5
78,6
B
with
103,5
63,7
Noise reduction
of one Sound
Attenuator:
-13,7 dB(A)
The FGS and FGC range of grilles can be combined with special accessories:
• Collecting tray
• Sound attenuator
The tray’s design prevents objects from entering the floor void.
The Sound attenuator is employed where added privacy is a requirement. This accessory attenuates noise transmission between adjoining rooms, eliminating or muffling sound transmission. It can only be used when combined with the
Collecting Tray.
28
How does the slab influence FSS operation?
At initial start up Thermal mass of the building
needs to be charged. This may take a week or
more and during this time it may be necessary to
start the plant earlier in the day and run it longer
at the end of the day to stabilize the building.
Once the building has settled it may be possible to
turn on the plant later than conventional systems
and turn it off earlier due to the thermal flywheel
effect.
A Free cooling effect may also be implemented
when suitable outside temperatures exist.
Do you know that Hiross FSS easily avoids condensate issues?
FSS controls and indeed can limit the supply temperature setpoint and in this way it is possible to
keep the supply air temp above the dew point,
thus avoiding the risk of condensation.
Cold air passing over a concrete slab will obviously cool it down.
The area which needs consideration is the part of
the slab where a car park or other non conditioned space beneath exist I.e. in this case temperature and humidity may be high.
10°C (2°C gain for initial hours)
If then the slab is being cooled it is possible that
warm moist air will condense either on the cool
outer surface. (very unlikely)
Do you know that it is not always necessary to
insulate the slab?
Due to variation in Vapour Pressure Warm moist
air may permeate into the slab and cause interstitial condensation. This is far more serious as it
is not visible and corrosion of reinforcing bars
could occured.
Only in special cases the slab has to be insulated,
when the floor below is exposed to outdoor conditions (open garage etc) It may also be appropriate to add a vapour seal on the underside of the
insulation.
No dust from the floor!
Depending on the cleaning regime and use of the
space dust in the air may settle overnight on the
grilles of the terminals. At start up this dust may
be reintroduced into the space but is of insignificant proportions.
The Zone AHU’s with high class filtration filter
out air bourne particulate at the rate of 10 air
changes per hour or more and the interior decorations are generally cleaner and retain their
appearance better than conventionally served
buildings.
In such circumstances it is essential either to create a vapour barrier after the maturing process of
the concrete is completed or to insulate the slab or
both. Insulation is usually only used to reduce
energy wastage. A Vapour barrier is quite easily
obtained by varnishing the slab with antidust coat
of PVA or epoxy or other similar products.
The system has been applied in a wide range of
climatic conditions from -20 to +50deg C and
condensation has never been found to exist due to
the system operation.
29
Have any studies been run on the IAQ or “Health”
of the Flexible Space System?
What advantages does the FSS system offer with
regard to the provision of a Healthy Building.
The Swedish Clinic of Occupational Medicine has
carried out tests along with Healthy Building Inc.
No condensates, moulds, or bacteria growth has
ever been detected in all FSS installations in over
10 years - Recirculating air enriched with fresh air
is continuosly “oxydising” the underfloor space leaving no chance for anaerobic growth.
1 High recycling air volumes (approx 10 times)
coupled with high filtration standard (from G3
to F7) can remove pollen and other particulate.
2 High Ventilation effectiveness.
3 Good air distribution
4 Low temperature gradient
5 Easy inspection of the underfloor air void to removed debris and periodical cleaning, if necessary.
How is the fresh air supply maintained if the Air
Terminal dampers close to control the temperature.
1 FA is only partially introduced when terminal
dampers are closed.
2 The fresh air introduced into the floor void quickly raises the concentration of fresh air. Therfore
even though the dampers are closed to their
minimum stop position the Fresh Air quantity
remains fairly constant. All fresh air supply
recommendations are based on a time period
translated into a flow rate per second for commissioning purposes. Over an average day the Fresh
Air quantity designed for a space can be expected
to dilute the iar throughout that space enhancing
the dilution of pollutants in the room air (carbon
dioxide, monoxide, nicotine, others).
6 High flexibility in relocation of components avoiding unwanted draughts in the occupied space
7 Available additional space to fit extra air treatment for most stringent requirements.
Even in highly occupied spaces FSS can complaint of draft be avoided.
The terminal units may be located and later relocated to suit users in a matter of few minutes.
Positioning of terminals is not as critical as with displacement “Swirl Grilles” or with ceiling grilles but
generally placing the terminals approx 0,5 m from the work station or in a corridor or walkway avoids
the issue of draft. Some users choose to sit directly over supply grilles. Others may prefer the units to be
a short distance away. The ability to adjust the fan speed of the terminals is fundamental in this regard.
30
Which is the Indoor Air Quality norm?
Can FSS control humidity?
Modern science of air quality goes back more
than 100 years. In 1895, ASHRAE predecessors
adopted a ventilation standard calling for 30
cubic feet per minute (cfm) of outdoor air per
occupant in buildings.
30 cfm = 50 m3/h
Cooling coil temperatures are typically in the
range of 9-13°C for dehumidification purposes.
This air is then possibly too cold to deliver to the
space. The full function control of the Zone AHU’s
Hiross C and Hiross V adjusts both the cooling and
after heating to produce supply air of the proper
temperature before being delivered directly into
the underfloor plenum. Low pressure hot water or
electric heating coil options are available.
Do you know that if you install FSS you don’t
need a separate fresh air system?
Using FSS AHUs the fresh air could
be directly introduced into the
return of the AHU by a HirossFA
(Fresh Air Module). In this way any
level of fresh air can be supplied by
using a number of fresh Air
Modules.: FSS easily complies with the Air
Quality Norm.
A good noise level could be influenced also by the
raised floor type and return grilles?
1 Raised floor panels comprise a metal casing. By
introducing a solid core, such as high-density
particleboard, problems with hollow sounding
floors are avoided and acoustic and thermal
insulation performance is improved.
How does the Flexible Space System comply with
Acoustic norms concerning privacy and office
requirements!
The noise is the combination of HirossC/HirossV
units and terminals depending on running conditions and quantity of terminals.
Practical SPL in standard offices is in the range
35 - 40 dB(A).
2 In addition to the panel itself, carpet-finished
systems offer a good level of acoustic insulation
by damping vibrations.
3 Sound transmission between adjacent rooms
with grilles served by the same plenum is attenuated using a “Sound attenuator” but this treatment is hardly ever required.
4 Cross talk between offices is also influenced by
the choice or partition and the quality of seals
where partitions abut ceilings etc. Often the ceiling void needs additional sound baffles above
the partitions as ceiling tiles are less effective at
attenuating sound than floor panels.
31

Cat 32pg FSS 09-04 ING

Transcription

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