Sidecar Installation Manual

Transcription

Sidecar Heat Exchanger
Installation and Maintenance Guide
®
Coolcentric is a Division of Vette Corp
Table of Contents
Chapter 1 – Introduction
1
Related Documentation
1
Notices and Statements in this Document
1
Bill of Materials
2
Assembly Drawings
3
Chapter 2 – Installing the Sidecar Heat Exchanger
8
Main Tasks
8
Required Components and Tools
9
Installation Procedures
10
Attaching the Sidecar to the IT Enclosure
10
Connecting the Water Supply
19
Filling the Sidecar with Water
21
Completing the Installation
22
Airflow Management
22
Sidecar Thermal Safety Circuit Overview
23
Resetting the Sidecar Thermal Safety Circuit
24
Chapter 3 – Maintenance Procedures
25
Purging Air from the Sidecar
26
Draining the Sidecar
26
Removing the Sidecar
27
Maintenance Schedule
29
Technical Support and Service
29
Coolcentric Limited Product and Service Warranty
29
Chapter 1 – Introduction
This Installation and Maintenance Guide contains instructions for installing and setting up the
Coolcentric® Sidecar Heat Exchanger.
The Sidecar is a water-cooled in-row heat exchanger that is mounted on the side and to the rear of an IT
enclosure. The Sidecar cools the air that is heated and exhausted by devices mounted inside the IT
enclosure and deposits the treated air in the cold aisle. The Sidecar consists of the Chassis assembly
that is positioned alongside the IT enclosure and the Rear Door Assembly which hinges on the Chassis
and serves as the rear of the IT enclosure. Supply and return water hoses (sold separately) deliver
conditioned water to the Sidecar and remove the heated water from it. The Sidecar contains a Thermal
Safety Circuit that will exhaust the hot air into the hot aisle if an over temperature situation occurs. The
Sidecar can be used on IT enclosures that are deployed on either a raised floor or a non-raised floor.
This document might be updated occasionally to include information about new features. Technical
updates to this documentation are available from the Coolcentric web site:
http://www.coolcentric.com.
Related Documentation
This Sidecar Heat Exchanger Installation and Maintenance Guide provides general information about the
Sidecar, including information about features and how to get help. In addition to this Guide, more
information on site preparation and secondary loop ancillary items can be found in the Sidecar Heat
Exchanger Planning Guide.
Notices and Statements in this Document
The following notices and statements are used in this document:



Note:
These notices provide important tips, guidance, or advice.
Important: These notices provide information or advice that might help you avoid
inconveniences or problem situations.
Attention: These notices indicate potential damage to programs, devices, or data. An attention
notice is placed just before the instruction or situation in which damage could occur.
Caution: These statements indicate situations that can be potentially hazardous to you. A
caution statement is placed just before the description of a potentially hazardous procedure
step or situation.
Danger: These statements indicate situations that can be potentially lethal or extremely
hazardous to you. A danger statement is placed just before the description of a potentially
lethal or extremely hazardous procedure step or situation.
Sidecar Heat Exchanger – Installation and Maintenance Guide
1
Bill of Materials
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
Sidecar Chassis
Front Panel
Side Panel (2X)
Rear Panel
Casters (4X)
Leveling Feet (4X)
Hinges (2X)
Locking Panel Latch (1X per panel)
Quarter Turn Latch (2X per panel)
Coil
Drain Ports (2X)
Air-Purging Valves (2X)
Quick Connects (Supply and Return)
Rear Door Assembly
Thermal Bypass Vent
Thermal Bypass Vent Electronic Latch
Transition Frame
Alignment Bracket
12vDC Power Supply *
12vDC Power Jack
Cable Split Grommet
Grounding Wire stud (Sidecar Chassis) *
Rear Door Trim
Top Support Bracket
Thermal Safety Circuit Temperature Sensors (3X)
LED (2X)
Swing Handle
Latch Bracket
Grounding Wire stud (Rear Door)
Outrigger *
*Parts not shown in assembly drawings
2
Assembly Drawings
1
24
4
8
2
9
3
IT Enclosure
6
Front or Cold
Aisle
3
Assembly Drawings (continued)
14
26
7
27
Rear or Hot
Aisle
4
10
13
5
11
Side
5
18
15
17
16
28
Rear or Hot
Aisle
23
6
26
12
25
Front
29
20
21
7
Chapter 2 – Installing the Sidecar Heat Exchanger
Before you can install the Sidecar, you must have prepared the facility according to the Sidecar Heat
Exchanger Planning Guide for water-cooled data centers. The Planning Guide is available on the
Coolcentric website (http://www.coolcentric.com) in the “Information” section under “Documentation”.
The Planning Guide includes suggestions for best practices for configuring the Sidecar, hose kits,
external manifolds and recommendations for the water-quality and water-supply specifications.
You can install the Sidecar while devices in the IT enclosure are operational; however the optimum time
for installation is during a scheduled maintenance period.
Sidecar Chassis
Rear Door Assembly
Main Tasks
Installing the Sidecar consists of the following main tasks:
1. Remove the existing IT enclosure’s rear door, hinges and door latch (if installed).
2. Attach the Transition Frame as described in the Transition Frame Installation Guide supplied
with each Transition Frame.
3. Attach the Alignment Bracket directly to the Transition Frame.
4. Attach the Sidecar Chassis to the Alignment Bracket.
5. Attach the Rear Door Assembly to the lift off hinges on the Sidecar Chassis
8
6. Connect the grounding wire if required (supplied by customer).
7. Connect the wire harness connection from the Rear Door Assembly to the Sidecar Chassis.
8. Connect the supply and return hoses from the chilled water source, the Coolant Distribution
Unit (CDU) or External Manifold to the couplings on the Sidecar.
9. Fill the Sidecar with treated water and purge remaining air from the coil.
10. Secure the hoses in the Sidecar if required using cable ties (supplied by customer) in the
provided sheet metal tie down points.
11. Plug in the 12vDC external power supply for the Thermal Bypass Vent Electronic Latch.
Note: Connecting the hoses from a CDU unit to the Sidecar creates the required secondary loop in the
water-circulation system. See the Sidecar Heat Exchanger Planning Guide for information about primary
and secondary loops in the water-circulation system.
Required Components and Tools
1.
2.
3.
4.
Sidecar
Sidecar Installation and Maintenance Guide
Transition Frame Kit (ships in a separate box)
Air purging tool (sold separately). One air purging tool can be used to commission multiple
Sidecars.
5. Hose Kits (sold separately)
6. Water Treatment (sold separately)
7. Raised Floor Grommet (if a raised floor is used, sold separately)
The following tools (supplied by customer) are required to complete an installation:
1. Tool necessary to remove the existing IT enclosure rear door hinges and latch (see the Enclosure
Installation Manual provided by the enclosure vendor for details).
2. Tool necessary to attach the Transition Frame to the IT enclosure rear frame (see the Transition
Frame Installation Guide for details).
3. 3mm hex key to attach the Alignment Bracket to the Transition Frame, the Sidecar Chassis to
the Alignment Bracket and the Rear Door Trim to the Transition Frame.
4. 6mm hex key to install and remove the Sidecar Outrigger, used for moving the sidecar into
place.
5. 8mm socket or box wrench to install the Top Support Bracket.
6. 17mm and 10mm open ended wrenches or (2) adjustable crescent wrenches for adjusting the
leveling feet on the Sidecar Chassis.
7. A bucket (approximately 2 quarts / 2 liters) to capture water that escapes as you purge air from
the system while filling the Sidecar with treated water.
8. Tool to cut a hose cut-out hole in the raised floor tile (if a raised floor is used).
Note: Although the likelihood of water exposure is extremely small, you might prefer to place some
water-absorbent material beneath the Sidecar as a general practice when performing procedures on the
Sidecar.
9
Installation Procedures
Complete the procedures in this section to install the Sidecar assembly to the right side of the IT
enclosure when facing the front of the IT enclosure.
Note: Unless noted otherwise torque all fasteners to 34 in-lbs.
Attaching the Sidecar to the IT Enclosure
To install the Sidecar, complete the following steps:
1. Remove the front panel from the Sidecar shipping crate.
Rear Door
Assembly Box
Sidecar Chassis
Alignment Bracket
Sidecar Hardware Box
Outrigger
10
2. Remove the Outrigger from the shipping crate and attach to the front of the Sidecar Chassis
using (2X) M8 x 16 Socket Head Cap Screws (SHCS) and (2X) M8 Washers. Align the holes in the
Outrigger to the holes in the bottom frame of the Sidecar and screw into the threaded holes
using the 6mm hex key.
M8 Washer (2X)
M8 x 16 SHCS (2X)
Outrigger
3. With a minimum of 2 people carefully slide the Sidecar Chassis out of the shipping crate and
move it into position next to the right side of the IT enclosure. Leave the Outrigger attached to
the Chassis until the Sidecar has been affixed to the IT enclosure.
Danger: Due to the size and weight of the Sidecar Chassis, the unit can be unstable
when transporting. The use of the Outrigger when transporting will help stabilize the Sidecar
Chassis. However 2 people should always be used when moving the Sidecar Chassis and special
care should be taken when going over any obstructions on the floor. Failure to do so may result
in the Sidecar Chassis tipping over and causing damage to the unit and serious personal injury.
4. Remove the IT enclosure rear door, hinges and door latch (if installed) per the IT enclosure
manual.
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5.
Install the Transition Frame to the rear of the IT enclosure as described in the Transition Frame
Installation Guide supplied with each Transition Frame.
6. Remove the Alignment Bracket from the shipping crate and install to the threaded Transition
Frame hinge hole locations with the provided M5 Button Head Cap Screws (BHCS) (4X). The tab
on the Alignment Bracket should be positioned at the bottom of the enclosure. The inner
surface of the left Transition Frame member will mate up against the inner right surface of the
Alignment Bracket. Align the holes in the Alignment Bracket with the threaded holes in the
Transition Frame. Screw in from the exterior through the Alignment Bracket into the threaded
holes in the Transition Frame.
Alignment
Bracket
M5 BHCS (4X)
Tab on Alignment
Bracket end
should be
oriented towards
the bottom of the
IT enclosure
Front of IT Enclosure
12
7. Remove all the panels from the Sidecar, except the Side Panel that will be adjacent to the IT
enclosure.
Each Sidecar panel has (2X) Quarter Turn Latches and (1X) Locking Panel Latch. To remove the
panel turn the quarter turn latches 90 degrees so they are pointing North and South. Then
unlock the panel latch and press down on the latch and remove the panel. To reinstall a panel
engage the bottom tab of the panel into the slot on the Sidecar and push in the panel until the
Locking Panel Latch snap into place. Lock if desired. Turn each of the quarter turn latches 90
degrees.
Locking Panel Latch
Quarter Turn Latch (2X)
Turn Latches 90
Degree to Secure
Engage Bottom
tab into slot
13
8. Wheel the Sidecar Chassis in position parallel to the IT enclosure with the Front Panel facing the
same direction as the front of the enclosure. The attachment holes on the Chassis vertical
member should be aligned front to back with the M5 threaded holes on the Alignment Bracket.
The top to bottom height alignment will be done steps 9-10.
Attachment hole on
Chassis vertical
member (3X)
Transition Frame on
rear of IT Enclosure
9. Using a 17mm open ended wrench or an adjustable crescent wrench loosen the M10 hex lock
nut on each of the (4X) leveling feet on the chassis.
10. Using a 10mm open ended wrench or an adjustable crescent wrench the (4X) leveling feet on
the Sidecar Chassis and adjust the Chassis height so that the unit is level and the three
attachment mounting holes align with the holes on the Alignment Bracket.
Leveling Foot (4X)
M10 Lock Nut (4X)
14
Level Sidecar to align hole on
Sidecar chassis with M5
threaded holes on Alignment
Bracket. (3X)
M5 x 8 BHCS (3X)
11. Using (3X) M5 BHCS attach the Sidecar Chassis to the Alignment Bracket by screwing in first
through the Chassis into the threaded holes in the Alignment Bracket.
12. Assemble the (3) components of the Top Support Bracket as shown, using (2X) M5 Hex nuts and
(2X) M5 washers. Do not fully tighten the M5 hex nuts at this time.
M5 Washer & Hex Nut (2x)
Sliding Clamps (2X)
Sidecar Chassis Attachment Stud
13. Position the Top Support Bracket on top of the IT enclosure. The Sidecar Chassis Attachment
Stud on the Top Support Bracket should engage into the slot on the side of the Sidecar Chassis.
If necessary adjust the leveling feet to align slot.
15
Top Support Bracket
M5 Washer &
M5 Hex Nut
M5 Washer &
M5 Hex Nut
Sidecar Chassis
Attachment Stud
engagement into
slot on inside of
chassis
14. From inside the front of the Sidecar Chassis assemble a M5 washer and a M5 hex nut on to the
Sidecar Chassis Attachment Stud.
15. Align the Sidecar Chassis so that it is parallel to the side of the IT enclosure and adjust the (2X)
sliding clamps on the Top Support Bracket so they contact the sides of the IT enclosure.
16. Fully tighten the (2X) M5 hex nuts on the Top Support Bracket and the M5 Hex nut on the
Sidecar Chassis Attachment Stud.
17. Remove the (2X) M8 x 16 SHCS and (2X) M8 Washers on the Outrigger and remove from the
Sidecar Chassis. The Outrigger should be stored for future use or returned to the Coolcentric
Service Technician.
18. Remove the Rear Door Assembly from the shipping crate and packaging.
19. Hang the Rear Door Assembly onto the mating hinges on the Sidecar Chassis. Align the (2X)
hinge holes on the Rear Door Assembly with the (2X) hinge pins on the Sidecar Chassis and push
the door down onto the hinges until they are fully engaged.
Lift Off Hinge
(2X)
16
20. If required connect a grounding wire (supplied by customer) from the Grounding Wire stud on
the Sidecar Chassis to the stud on the Rear Door Assembly
21. Plug in the wire harness receptacle on the Rear Door Assembly to the mating receptacle on the
Sidecar Chassis.
22. Install the Latch Bracket to the Transition Frame. From the interior of the right Vertical Frame
pass the leg of the Latch Bracket with the threaded hole through the slot in the middle of the
right Vertical Frame aligning the threaded hole in the Latch Bracket with the hole in the right
Vertical Frame. Using one M5 x 8 BHCS, fasten the Latch Bracket by screwing in from the
interior.
M5 x 8 BHCS
Latch Bracket
17
23. Due to the varying styles of IT enclosures there may be a gap between the bottom of the Rear
Door Assembly and the bottom inside surface of the enclosure. If this is the case then attach
the Rear Door Trim to the Transition Frame. Remove the rear M5 x 8 BHCS’s from each side of
the bottom horizontal member of the Transition Frame. Install the Rear Door Trim by aligning
the hole on the Rear Door Trim with the threaded holes that the M5 BHCS’s were removed
from and reinstall the (2X) M5 x 8 BHCS’s.
Rear Door Trim
M5 x 8 BHCS (2X)
24. Plug in the 12vDC Power Supply into the 12vDC Power Jack on the Sidecar Chassis. Route the
cable through the Cable Split Grommet. Plug the power supply into a power strip inside of the
IT enclosure. Make sure the correct plug adapter is installed on the power supply for the
Country and corresponding power requirements.
12vDC Power
Jack
Cable Split
Grommet
18
12vDC Power Supply
Power Supply
Plug Adapter
Connecting the Water Supply
To connect the chilled water supply to the Sidecar, complete the following steps:
1. If there is no access to the side, remove the Rear Panel. Then remove the Sidecar Chassis
Turning Vane by removing the (3X) M5 x 8 BHCS’s.
Turning Vane
M5 x 8 BHCS (3X)
2. For Bottom Feed route the Supply and Return hoses up through the brush grommet in the
raised floor tile and through the brush grommet in the bottom of the Sidecar Chassis.
3. For Top Feed remove the solid 4 inch (100mm) hole plug on the top of the Chassis and replace
with the 4 inch (100mm) brush grommet that is on the bottom of the Sidecar Chassis. Install the
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solid 4 inch (100mm) hole plug in the bottom of the of the Sidecar Chassis. Route the Supply
and Return hoses down through the brush grommet in the top of the Sidecar Chassis.
Note: It is recommended that hose cut-out in the raised floor tile be on the tile edge so that the tile
can be removed without having to disconnect the hoses. If this is not possible, then a hose cut-out
must be made in the interior of the raised floor tile. The raised floor tile will remain in place and the
supply and return hoses must be routed through the hose cut-out in the interior of the raised floor
tile before attaching to the Sidecar. A raised floor grommet is recommended to avoid any cold air
from the floor plenum from escaping in to the data center
4. Attach the male supply hose coupling to the female supply coupling on the Sidecar. To attach
the supply hose, complete the following steps:
a. Align the male supply hose coupling with the female supply coupling on the Sidecar.
Note: If you misalign the couplings, it will be difficult to connect the hose.
b. Retract the collar on the female coupling.
c. Insert the male supply hose coupling. Exert pressure until the female collar moves forward
and locks in place with an audible click.
Note: After the couplings are engaged but before the collar has locked into place, you can let go
of the collar and use both hands to push the hose forward to lock the couplings.
Return Manifold Coupling (Male)
Return Hose Assembly (Female)
Supply Manifold Coupling (Female)
Supply Hose Assembly (Male)
5. Attach the female return hose coupling to the top male coupling on the Sidecar. To attach the
return hose, complete the following steps:
20
a. Align the female return hose coupling with the male return coupling on the Sidecar.
Note: If you misalign the couplings, it will be difficult to connect the hose.
b. Retract the collar on the female return hose coupling and engage the female coupling to
the male coupling on the Sidecar.
c. Exert forward pressure until the female collar moves forward and locks in place with an
audible click.
Note: After the couplings are engaged but before the collar has locked into place, you can let go
of the collar and use both hands to push the return hose forward to lock the couplings.
Filling the Sidecar with Water
To fill the Sidecar with water for the first time, complete the following steps.
Caution: Wear safety goggles or other eye protection whenever filling, draining, or purging air
from the Sidecar.
1. Unscrew and retain the caps from both air-purging valves.
Note: The valves are similar to the valves on bicycle tires. The following photo on the right
shows the air-purging tool (sold separately) consisting of a long hose (72”/1840mm) and a short
extension hose (6”/160mm).
2. Place one end of the long hose of the air-purging tool into a 2 quart (2 liter) bucket to catch the
water that escapes during the filling procedure.
Air Purging Valves
Air Purging Tool
21
3. Attach the other end of the long hose to the leftmost (supply) air-purging valve. As the airpurging tool is screwed onto the valve, air will begin to escape.
4. Turn on the flow of water to the Sidecar. Water that is mixed with air will begin to spit into the
bucket when the Sidecar coil is almost full.
5. When there is a steady stream of water from the air-purging tool into the bucket, unscrew the
air-purging tool from the valve.
Attention: If water drips from the air-purging valve after you remove the air-purging tool,
reattach the tool and disconnect it again to exercise and seat the seal.
6. With one end of the long hose of the air-purging tool inside the bucket, attach the other end of
the air-purging tool to the rightmost (return) air-purging valve. As the air-purging tool is
screwed on to the valve, air will begin to escape. When there is a steady stream of water from
the air-purging tool into the bucket, unscrew the air-purging tool from the valve.
Note: Water will spray or spit into the bucket during this procedure. If air remains in the coil it
will cause a splashing or gurgling sound. Repeat the air-purging procedure on both valves if this
sound is present.
7. Feel the right and left side of the Sidecar manifold (the horizontal copper supply and return
pipes coming out of the supply and return connections). If they are cool to the touch, the chilled
water is flowing correctly through the Sidecar.
8. Screw the valve caps onto the air-purging valves and hand-tighten them to provide a secondary
seal.
Completing the Installation
Complete the following steps:
1. If any raised floor tiles were removed for routing the supply and return lines, replace them at
this time.
2. On a non-raised floor route the hose away from the IT enclosure and Rear Door Assembly.
3. Replace any panels on the Sidecar Chassis that were removed during installation.
4. Close and latch the Rear Door Assembly.
5. Check the Sidecar after several hours of operation. If there is a splashing or gurgling sound,
repeat the air-purging procedure on both air purging valves (trapped air from the hoses might
have migrated to the Sidecar).
6. Check the Sidecar for air in the coil again after one month of operation, to ensure that the
Sidecar is filled correctly.
Airflow Management
IT enclosures should be configured to maximize the airflow through the Sidecar. Exact configurations will
vary based on selection of IT equipment, enclosure models and site specific conditions. Consult your
enclosure supplier for further guidance on available accessories and best practices for enclosure-level
airflow management. Optimal cooling performance can be achieved when industry accepted best
practices are used such as the following:
22
1. Any open U spaces on the front mounting rails should be covered using horizontal blanking panels
and any open spaces along the side of the front mounting rails (particularly in enclosures over
600mm/24” wide) should be covered using vertical blanking panels.
2. Side Panels or Divider Panels should be used on both sides of each enclosure to contain the
exhaust air within each enclosure.
3. Solid Roof Panels and Bases should be used to contain the exhaust air within each enclosure. Any
cable/cord penetrations should be blocked as much as possible using devices such as brush strips.
4. Any penetrations through raised floor tiles should use raised floor brush strip grommets to block
as much of the opening as possible.
Sidecar Thermal Safety Circuit Overview
In order to protect the IT equipment inside the enclosure, the Sidecar is equipped with a Thermal Safety
Circuit. In normal operating conditions the hot exhaust air ejected by the rack-mount devices passes
through the coil in the Sidecar Chassis and is neutralized. This treated air is then deposited in the cold
aisle. Three temperature sensors are located on the exhaust side of the coil just before the treated air
passes through the Sidecar Front Panel. These sensors are rated to activate when temperatures exceed
90°F (32°C). In the event that the air passing through the coil is not properly treated and increases to a
temperature outside of the operating range for the Sidecar - 90°F (32°C), the Thermal Safety Circuit will
trip. When the circuit trips the Thermal Bypass Vent Electronic Latch that holds the Thermal Bypass
Vent on the Rear Door Assembly closed will disengage. The Thermal Bypass Vent will open and block
airflow access to the coil inside the Sidecar Chassis. The hot exhaust air will then be ejected into the hot
aisle through the open perforated section of the Rear Door Assembly. Red LED lights on the Rear Door
Assembly and on the front of the Sidecar Chassis will illuminate to alert and indicate a problem. The
Thermal Bypass Vent Electronic Latch will remain disengaged until the temperature sensors have
returned to a normal operating temperature. At this time the IT personnel and/or a Coolcentric service
technician should evaluate the situation to determine the cause of the circuit tripping and remedy the
problem.
23
LED
Thermal
Bypass Vent
LED
Temperature
Sensor (3X)
Thermal Bypass
Vent Electronic
Latch
Resetting the Sidecar Thermal Safety Circuit
After the situation that triggered the Thermal Safety Circuit tripping has been resolved the Thermal
Safety Circuit Temperature Sensors will return to a normal operating temperature. When this happens
the two red LED lights will turn off and the Thermal Bypass Vent Electronic Latch will reset and allow the
Thermal Bypass Vent to be closed and locked into place.
24
Chapter 3 – Maintenance Procedures
The following illustration shows the locations of components on the Sidecar.
Coil Fins
Drain Ports
Air Purging
Valves
Supply and Return Connections
Note: Although the likelihood of water exposure is extremely small, you might prefer to place some
water-absorbent material beneath the Sidecar as a general practice when performing procedures on the
Sidecar.
25
Purging Air from the Sidecar
Perform this procedure as part of regular maintenance and when you hear a splashing or gurgling sound
from the manifolds.
from the Sidecar.
1. Unscrew and retain the caps from both air-purging valves.
Note: The valves are similar to the valves on bicycle tires.
2. Place one end of the long hose of the air-purging tool into the 2 quart (2 liter) bucket to catch
the water that escapes during the purging procedure.
3. Attach the other end of the long hose to the leftmost (supply) air-purging valve. As the airpurging tool is screwed on to the valve, water that is mixed with air will begin to spit into the
bucket.
4. When there is a steady stream of water from the air-purging tool into the bucket, unscrew the
air-purging tool from the valve.
Attention: If water drips from the air-purging valve after you remove the air-purging tool,
reattach the tool and disconnect it again to exercise and seat the seal.
5. With one end of the long hose of the air-purging tool inside the bucket, attach the other end of
the air-purging tool to the rightmost (return) air-purging valve. As the air-purging tool is
screwed on to the valve, water that is mixed with air will begin to spit into the bucket. When
there is a steady stream of water from the air-purging tool into the bucket, unscrew the airpurging tool from the valve.
Note: Air in a coil causes a splashing or gurgling sound. Repeat the air-purging procedure on
both valves if this sound is present.
6. Screw the valve caps onto the air-purging valves and hand-tighten them to provide a secondary
seal.
Draining the Sidecar
Perform this procedure before having the Sidecar removed from the IT enclosure or when directed to do
so by Coolcentric Professional Services. The drain ports are at the bottom of the Sidecar, near the
supply and return couplings (see previous illustration).
from the Sidecar.
26
Note: Although the likelihood of water exposure is extremely small, you might prefer to place
some water-absorbent material beneath the Sidecar as a general practice when draining the
Sidecar.
To drain water from the Sidecar, complete the following steps.
1. Shut off the flow of water to the Sidecar at the chilled water source.
Note: Depending on your facility, this might mean turning off the CDU unit, closing a valve at
the CDU unit, or a similar action.
2. Remove the Side Panel if possible, alternatively the Rear Panel on the Sidecar Chassis to access
the supply and return connections.
3. Disconnect the return hose and the supply hose from the Sidecar and move them out of the
way.
4. Remove the valve caps from the air-purging valves and from the drain ports.
5. Place one end of the long hose of the air-purging tool into a bucket (minimum 5 gallons / 19
liters capacity) to catch the water that escapes during the draining procedure.
6. Attach the other end of the long hose to the supply drain port. As the air-purging tool is
screwed on to the port, water that is mixed with air will begin to spit into the bucket.
7. Attach the shorter 6”/160mm extension hose to one of the air-purging valves at the top of the
Sidecar to allow air to enter the manifolds.
Note: Instead of using the 6”/160mm extension hose, if filtered and oil-free compressed air is
available, you can attach the compressed-air hose to the air-purging valve to force water out of
the Sidecar. Keep the air pressure at 50 psi (3.4 Bar) or less to avoid excessive spray at the drain
port.
8. When the water flow at the drain port stops, move the 6”/160mm extension hose or
compressed-air hose to the other air-purging valve (on bottom feed models only) and repeat the
process.
9. Remove the long hose from the supply drain port and attach to the return drain port and repeat
steps 5-8.
10. When the water has drained completely from the coil, complete the following steps:
a. Remove the 6”/160mm extension hose or compressed-air hose from the air-purging valve.
b. Remove the long hose from the drain port.
c. Screw the valve caps onto the air-purging valves (on bottom feed models only) and drain
port valve and hand-tighten them to provide a secondary seal.
Removing the Sidecar
Perform this procedure before having the Sidecar removed from the IT enclosure or when directed to do
so by Coolcentric Professional Services.
Caution: It is recommended that the Outrigger be attached to the Sidecar Chassis whenever
detaching the Sidecar from the IT enclosure. It is also recommended that 2 people are used
when transporting the Sidecar. See page 11 for instructions
27
1. While the Sidecar can be removed from the IT enclosure when filled with water, it is
recommended to drain water from the Sidecar as described in the section above before
removing the Sidecar.
2. Unplug the 12vDC power supply and disconnect the grounding wire harness from the Rear Door
Assembly.
3. Lift up and remove the Rear Door Assembly from the Sidecar Chassis.
4. Disconnect the return hose and the supply hose from the Sidecar and remove them from the
Sidecar Chassis.
5. Attach the Outrigger to the Sidecar Chassis.
6. Remove the Front Panel and remove the M5 hex nut on the Top Support Bracket. Remove the
Top Support bracket from the IT enclosure.
7. Remove the Rear Panel from the Sidecar and remove the (3X) M5 x 8 BHCS’s that attach the
Sidecar to the Alignment Bracket.
8. Remove the Sidecar from the IT enclosure.
28
Maintenance Schedule
Perform the following maintenance tasks at the indicated intervals.
Task
Frequency
Inspect the Sidecar coil fins for blockage (from dust, dirt,
debris, etc.)
Annually
Check the coil for temperature
(make sure that the top of the coil is cool)
and sounds of air in the system, to ensure that the
Sidecar is filled correctly.
One month after installation
and then annually
Inspect the entire length of the supply hose and
return hose for damage, age cracks, and kinks.
Be sure to inspect the door and outside of the IT enclosure
for any signs of damage.
Annually
Technical Support and Service
To obtain technical support or service please contact Coolcentric Corp directly at:
Toll-free (US/Canada): +1 877.248.3883
DDI: +1 508.203.4690
Email: [email protected]
Coolcentric Limited Product and Service Warranty
To obtain a copy of Coolcentric’s Limited Product and Service Warranty:
Call Toll-free (US/Canada): +1 877.248.3883
Call DDI: +1 508.203.4690
Visit: www.coolcentric.com
29
©2011 Coolcentric, a Division of Vette Corp
Part #113357 Rev A
30

Sidecar Installation Manual

Transcription

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