Trane CenTraVac, CenTraVac CVHE Series, CenTraVac CVHF Series, CenTraVac CVHG Series Installation - General Information

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Installation – General Information
Water Cooled CenTraVac With CH530
Required Installation Information:
X39640645030
CVHE-SVN01C-EN
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Warnings and Cautions
Warnings and Cautions
Notice that warnings and cautions appear at appropriate intervals throughout this manual. Warnings are provided to alert installing contractors to potential hazards that could result in personal injury or
NOTICE: Warnings and Cautions appear at appropriate sections throughout this manual. Read these carefully.
WARNING – Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTION – Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury. It may also be used to alert against unsafe practices.
death, while cautions are designed to alert personnel to conditions that could result in equipment damage.
Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.
CAUTION – Indicates a situation that may result in equipment or property-damage-only accidents.
© 2005 American Standard Inc. All rights reserved. CVHE-SVN01C-EN
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Contents
Warnings and Cautions
General Information
About This Manual
Product Description Block
Commonly Used Acronyms
Unit Nameplate
Metric Conversion
Responsibilities of Installing Contractor(s)
Unit Shipment
Storage
Recommended Unit Clearances
Operating Environment
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Storage Requirements if Chiller is not installed
Foundation Requirements
Rigging
Chiller Isolation
Isolation Pads
Spring Isolators
Unit Leveling
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27
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Contents
Figures
1 – Typical CVHE and CVHG Chiller with Refrigerant Pump ....................... 10
2 – Clearance Requirements for Cooling and Auxiliary Units ..................... 11
3 – Clearance Requirements for Heat Recovery ......................................... 12
4 – Tube Bundle Locations Showing Cooling Only, Free Cooling,
Heat Recovery, and Auxiliary Condenser ............................................. 13
5 – Recommended Lifting Arrangements .................................................. 18
6 – Isolation Pad ......................................................................................... 19
7 – Isolation Spring Placement ................................................................... 21
8 – Chiller Foot/Isolator Orientation ............................................................ 22
9 – Typical Spring Isolator Types and Construction .................................... 23
10 – Checking Unit Levelness ...................................................................... 27
Tables
1 – Installation Requirements ....................................................................... 7
2 – Tube Bundle Locations for Cooling Only and Free Cooling Units ......... 14
3 – Tube Locations for Heat Recovery and Auxiliary Condenser ................ 14
4 – Typical Shipping and Operating Weights
for Standard Options ............................................................................ 14
5 – Typical Weights for Cooling Only ......................................................... 16
6 – Isolation Pad Loading ........................................................................... 20
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General Information
About this Manual
This manual describes proper installation of Model CVHE, CVHF, and CVHG 50 Hz and 60 Hz chillers with the Tracer CH530 Controls platform. See Figure 1 for an illustration of a Centrifugal Chiller with the Tracer CH530 Unit Control Panel.
These chillers are equipped with microcomputer-based control systems whether standard cooling or heat-recovery. A careful review of this information along with the submittal package provided for the unit will assure that the chiller is correctly installed.
Product Description Block
Trane 50 Hz and 60 Hz hermetic CenTraVac units are defined by the product definition and selection system (PDS). Each unit is defined by the product description block which appears on the unit nameplate. A service model number which represents the unit as-built is provided on the unit nameplate, along with a specific unit service number. Both these are utilized whenever parts or service are required. An example is provided in the unit operation and maintenance manual (CVHE-SVU01A-EN).
Commonly Used Acronyms
AFD = Adjustable Frequency Drive
ASME = American Society of Mechanical Engineers
ASHRAE = American Society of Heating, Refrigerating and Air Conditioning Engineers
BAS = Building Automation System
LBU = La Crosse Business Unit
CABS = Auxiliary Condenser Tube­Bundle Size
CDBS = Condenser Bundle Size
CESZ = Condenser Shell Size
CWR = Chilled Water Reset
DTFL = Delta-T at Full Load (i.e., the difference between entering and leaving chilled water temperatures at design load)
EVBS = Evaporator Size
EVSZ = Evaporator Shell Size
FC = Free Cooling
GPM = Gallons-per-Minute
HGBP = Hot Gas Bypass
HVAC = Heating, Ventilating and Air Conditioning
IE = Internally Enhanced Tubes
IPC = Interprocessor Communication
PFCC = Power Factor Correction Capacitor
PSID = Pounds-per-Square-Inch Differential
UCP = Chiller Control Panel
CH530 = Tracer CH530 Platform Unit Control Panel
Unit Nameplate
The unit nameplate is located on the left side of the unit control panel (UCP). The following information is provided on the unit nameplate.
1. Unit model and size descriptor
2. Unit serial number
3. Identifies unit electrical requirements
4. Lists correct operating charge and type of refrigerant
5. Lists unit test pressures and maximum operating pressures
6. Identifies unit installation, operation and maintenance manuals
7. Product description block
Metric Conversion
For tables and charts in this manual, the following conversions apply:
In. × 2.54 = cm
Ft. × 30.48 = cm
Lbs. × .453 = kg
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General Information
Responsibilities of Installing Contractor(s)
A list of the contractor responsibilities typically associated with the unit installation Process is provided below. Also see Table 1.
1. Locate and maintain the loose parts, i.e. isolators, bulb wells, temperature sensors, flow sensors or other factory-ordered field installed options, for installation as required. Loose
parts are located in the starter panel on units with factory­installed unit-mounted starters or in the motor terminal box for units with remote-mounted starters.
2. Install unit on a foundation with flat support surfaces level within 1/16” and of sufficient strength to support concentrated loading.
3. Place manufacturer-supplied isolation pad assemblies under unit. (Use spring isolators for upper floor installations.)
4. Install unit per applicable Trane Installation Manual.
5. Complete all water piping and electrical connections
Note: Field-piping must be arranged and supported to avoid stress on the equipment. It is strongly recommended that the piping contractor refrain from piping closer than 3’-0” [914 mm] minimum to the equipment. This will allow for proper fit-upon arrival of the unit at the job-site. Any adjustment that is necessary can be made to the piping at that time.
6. Where specified, supply and install valves in water piping upstream and downstream of evaporator and condenser water boxes to isolate shells for maintenance and to balance and trim system.
7. Supply and install flow switches (or equivalent devices) in both chilled water and condenser water piping. Interlock each switch with proper pump starter to ensure that unit can operate only when water flow is established.
8. Supply and install taps for thermometer and pressure gauges in water piping adjacent to inlet and outlet connections of both evaporator and condenser.
9. Supply and install drain valves to each water box.
10. Supply and install vent cocks on each water box.
11. Where specified, supply and install strainers ahead of all pumps and automatic modulating valves.
12. Supply and install pressure-relief piping from pressure-relief rupture disc to atmosphere.
13. If necessary, supply sufficient HCFC-22 refrigerant (maximum of 1 Lb. Per machine) for leak testing and dry nitrogen (8 psig [55 kPa] per machine) for pressure testing under manufacturer’s supervision.
14. Start unit under supervision of a qualified service technician.
15. Where specified, supply and insulate evaporator and any other portions of machine as required to prevent sweating under normal operating conditions.
16. Unit-Mounted Starters Only Remove top of starter panel and cut access area for line-side wiring; front left quadrant of top provides recommended access to starter lugs.
17. Supply and install wire terminal lugs to starter.
18. Unit-Mounted Starters Only
Supply and install field wiring to line-side lugs of starter.
ASHRAE Standard 15 Compliance
Trane recommends that indoor CenTraVac made in equipment or plant rooms that fully meet or exceed the guidelines of ASHRAE Standard 15, in addition to any applicable local, state, or national requirements. At a minimum this would typically include:
• The equipment room should have a refrigerant monitor or detector that is capable of monitoring and alarming within the acceptable exposure level of the refrigerant, and that can actuate mechanical ventilation.
• The equipment room should have an audible or visual alarm (other than the light on the monitor) that is controlled by the monitor. The alarm should annunciate inside of the equipment room and outside of each entrance to the equipment room.
• The equipment room should be properly vented to the outdoors, using mechanical ventilation that can be activated by the refrigerant monitor.
• The purge discharge and the rupture disk must be properly piped to the outdoors.
• If required by local or other codes, a self-contained breathing apparatus should be available in close proximity to the equipment room.
Refer to the latest copy of ASHRAE Standard 15 for specific guidelines. Trane assumes no responsibility for any economic, health, or environmental issues that may result from an equipment room’s design or function.
®
unit installations only be
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General Information
Table 1. Installation requirements
Type of Trane-Supplied Trane-Supplied Field-Supplied Requirement Trane-Installed Field-Installed Field-Installed
Rigging A. Safety chains
B. Clevis connectors C. Lifting beam
Isolation A. Isolation pads or A. Isolation pads or spring isolators
spring isolators
Electrical A. Circuit breakers or A. Jumper bars A. Circuit breakers or fusible
fusible disconnects B. Temperature sensor disconnects (optional) (optional) (optional outdoor air) B. Remote-mounted starter,
B. Unit-mounted C. Flow switches (may AFD (optional)
starter (optional) be field supplied) C. PFCCs (Remote-mounted
C. PFCCs (optional) starter option only)
D. Terminal lugs E. Ground connection(s) F. Jumper bars G. BAS wiring (optional) H. IPC wiring (AFD and remote-
mounted starters only
I. Control voltage wiring (AFD and
remote-mounted starters only)
J. Oil pump interlock wiring
(AFD and remote-mounted starters only)
K. High condenser pressure
interlock wiring (AFD and remote-mounted starters only).
L. Chilled water pump contactor
and wiring
M. Condenser water pump
contactor and wiring
N. Option relays and wiring
(See Table 12)
Water Piping A. Flow switches (May A. Thermometers
be field supplied) B. Water flow pressure gauges
C. Isolation and balancing valves
water piping
D. Vents and drain valves
(1 each per class)
E. Pressure-relief valves
(for water boxes as required) Rupture Disc A. Rupture disc assy A. Vent line and flexible connector Insulation A. Insulation (Optional) A. Insulation
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General Information
Unit Shipment
Each chiller ships from the factory as a hermetically-assembled package; it is factory-piped, wired and tested. All openings are covered or plugged to prevent contamination during shipment and handling.
See Figure 1 for an illustration of a typical chiller and its components. When the unit arrives at the job site, inspect it thoroughly for damage and material shortages. Suggested inspection steps below:
1. To prevent damaging moisture from entering the unit and causing corrosion, each chiller is pressurized with dry nitrogen before shipment.
2. Verify that the chiller is dehydrated by checking the evaporator press for an indication of holding charge pressure. Temporarily attach service gauge to refrigerant charging valves.
Note: The holding charge should
register approximately 5 psig [34.5 kPa) on the gauge at 72°F [22.2°C]. If the charge has escaped, contact your local Trane sales office for instructions.
3. The loose parts box and isolator pads ship in the motor terminal box or unit mounted starter enclosure if so equipped. Remove the sheet metal shipping bracket from the motor terminal box and discard.
4. Check the oil sump sight glasses to verify that the sump was factory-charged with 9 gallons [34 l] of oil on units with a Refrigerant Pump.
Beginning with design sequence
2K for the CVHE, L0 for the CVHG and U0 for the CVHF a new redesigned lubrication system has been incorporated. Aluminum balls, which are incorporated into the sight glass, float when oil is present, showing a better visible display of the oil level indication.
5. If no oil level indication is visible, contact your local Trane sales office.
6. Compare the unit nameplate data (including electrical characteristics) with the corresponding ordering and shipping information to verify that the correct unit was shipped to the job site.
7. If a thorough inspection of the chiller reveals damage or material shortages, be sure to file these claims with the carrier immediately. Specify the extent and type of damage found, and notify the appropriate Trane sales representative. Do not install a damaged unit without the sales representative’s approval.
Storage
If the chiller will be stored at the job site for an extended period of time before it is installed, exercise these precautionary measures to protect the unit from damage.
1. Do not remove the protective coverings factory-installed on the control panel and compressor inlet vane actuator for shipment.
2. Store the chiller in a dry, vibration free and secure area. If factory insulated, protect chiller from prolonged exposure to sunlight.
CAUTION
Insulation Damage!
TO PREVENT DAMAGE TO THE FACTORY-INSTALLED INSULATION, do not allow excessive exposure to sunlight.
3. Periodically check evaporator pressure to verify that 3 to 5 psig [21 to 34.5kPa] dry nitrogen @ 72°F [22.2°C] ambient holding charge is still in the chiller. If this charge escapes, contact a qualified service organization and the Trane sales engineer that handled the order.
Note: The storage for the microcomputer-based devices in the unit control panel is -40°F [-40°C] to 158°F [70°C].
Recommended Unit Clearances
Adequate clearances around and above the chiller is required to allow sufficient access for service and maintenance operations.
Figures 2, 3, 4, 5 and 6 illustrate the recommended clearances for units with and without options.
Note: In each instance, the minimum vertical clearance above the chiller is 3 feet.
In addition, be sure to provide working space clearance in front of the unit control panel to satisfy national and local electric codes.
Important: Do NOT install piping or conduit above the compressor motor assembly or behind the suction elbow.
(Specific unit clearance requirements are also indicated in the submittal package provided for your unit.)
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General Information
Operating Environment
Besides assuring that the site selected for chiller installation provides the necessary clearances, consider the equipment’s operating environment.
To assure that electrical components operate properly, do not locate the chiller in an area exposed to dust, dirt, corrosive fumes, or excessive hear and humidity. Note that the maximum ambient temperature range for chiller operation to 100°F [38°C].
CAUTION
Electrical Component Damage!
Chiller operation at ambient temperatures exceeding 100°F (38°C) may result in starter or electrical component damage. The higher ambient temperatures may affect the ability of panels to dissipate heat.
Take whatever action is necessary to improve the equipment room environment if any of these adverse operating condition are present.
Storage Requirements if Chiller is not installed
1. Store the chiller in a dry, vibration free and secure area on a solid foundation. If the chiller has factory installed insulation, protect the chiller from direct sunlight. Do not remove any of the factory installed protective coverings.
2. Do not charge the chiller with refrigerant. If the refrigerant is at the site, follow the refrigerant manufacture’s instructions for refrigerant charge.
3. A dry nitrogen holding charge of 3 to 5 psig [21 to 34.5kPa] was installed at the factory. This positive pressure must be checked monthly to insure that moisture and non- condensibles do not get into the chiller. Check the pressure gauge on the evaporator shell to verify that the dry nitrogen holding charge is still in the chiller. If this charge had escaped, contact a qualified service organization to leak test and repair as necessary and also notify the Trane sales engineer that handled the order.
4. Do not operate the purge unit on the chiller.
5. The oil can be left in the chiller if an oil analysis is initially obtained after six months, and once each succeeding year. If no oil breakdown is evident you do not have to change oil. If breakdown is evident, the oil will need to be replaced. If an oil analysis program is not followed, discarded, and new oil installed just prior to start-up by a qualified service organization.
6. The water side of the chiller requires no special attention but there may be slight scale build-up inside the tubes. Tubes should be inspected and cleaned before the unit is placed into service.
7. If the motor sits for a long time, the bearings could take a set and cause bearing problems/ replacement later. Once every six months the chiller oil pump must be started and the compressor shaft rotated 450 degrees. Contact a qualified service organization to perform this task.
8. If the chiller is stored for more than five years, and the storage is expected to be indefinite, the chiller should be examined for leaks every five years from the initial storage date. Contact a qualified service organization to perform this task.
9. When the unit is to be installed, follow instruction manuals that were shipped with the chiller. The services of a qualified service organization should be obtained to conduct all activities associated with the start-up of a new chiller.
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General Information
Figure 1. Typical chiller and its components
CVHF Shown from Right Front Angle View
Foundation Requirements
Provide rigid, non-warping mounting pads or a concrete foundation as a mounting surface for the chiller. Ensure that the bade is of sufficient strength and mass to properly support the chiller at its full operating weight (i.e., including completed piping, and full operating charges of refrigerant, oil and water.)
Table 2 and Table 3 give a summary of standard tube bundle locations. Table 4 indicates the weights of various chiller options. Table 5 shows typical weights for Cooling Only units.
Notice that the floor loading for all sizes of CVHE, CVHF and CVHG chillers is 50 pounds per square inch [344 kPa].
To assure proper unit operation, the chiller must be level within 1/16" [1.6 mm] over its length and width when set into place on the mounting surface.
The Trane Company will not assume responsibility for equipment problems resulting from an improperly designed or constructed foundation.
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General Information
Figure 2. Clearance requirements for cooling and auxiliary units
Notes:
1. Does not include water box. Add wate box dimension to this figure.
2. Minimum vertical clearance over chiller is 3 feet.
3. Minimum work space clearance per national and local electrical codes.
Table with Figure 2
DIM SHELL EVSZ EVSZ EVSZ EVSZ EVSZ EVSZ
A1 ALL 10'-3-1/4" 3131 11'-1-5/8" 3393 12'-5-1/4" 3790 14'-5-3/4" 4413 15'-3-3/4" 4667 16'-5-1/2" 5017 A2 ALL 11'-4-1/2" 3466 12'-5-1/2" 3797 13'-1-5/8" 4003 15'-1" 4597 15'-7" 4750 16'-6-1/2" 5042
A1 = Without Unit Mounted Starter A2 = With Unit Mounted Starter
CVHE-SVN01C-EN
COMB 032S/L 050S/L 080S/L 142M/L/E 210L 250E
(Inch) [mm] (Inch) [mm] (Inch) [mm] (Inch) [mm] (Inch) [mm] (Inch) [mm]
B ALL 2'-6-5/8" 777 2'-10" 864 2'-6-3/8" 772 2'-11-3/8" 899 3'-0-1/8" 918 2'-11-1/8" 893
S/S 11'-9" 3581 11'-9" 3581 11'-9" 3581 N/A N/A N/A N/A N/A N/A
C S/L, M/L, LL 15'-6" 4724 15'-6" 4724 15'-6" 4724 15'-6" 4724 15'-6" 4724 N/A N/A
E/L N/A N/A N/A N/A N/A N/A 17'-5" 5309 N/A N/A 17'-5" 5309
S/S 26'-5" 8052 26'-6-3/8" 8087 27'-4-1/4" 8338 N/A N/A N/A N/A N/A N/A
D S/L, M/L, L/L 33'-11-1/4" 10343 34' 10363 34'-10-1/2" 10640 35'-5-1/4" 10801 35'-5-1/4" 10801 N/A N/A
E/L N/A N/A N/A N/A N/A N/A 39'-3" 11963 N/A N/A 39'-6" 12039
Notes:
1. EVSZ = Evaporator Size, L = Long Shell; S = Short Shell; E = Extended Shell, M = Medium Shell
2. Clearance requirement to evaporator tube removal does not includ water box. Add water box dimension to this figure.
Top View
Do not install piping or conduit above compressor motor assembly or behind suction elbow.
CVHE, F, G Cooling and Auxiliary Units (Clearance)
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General Information
Figure 3. Clearance requirements for heat recovery units
Notes:
1. Does not include water box.
2. Minimum vertical clearance over chiller is 3 feet.
3. Minimum work space clearance per national and local electrical codes.
Table with Figure 3
DIM SHELL EVSZ EVSZ EVSZ EVSZ EVSZ EVSZ
A1 All 10'-6-5/8" 3216 11'-2-3/4" 3422 12'-5-3/8" 3794 14'-10" 4521 15'-8-1/2" 4788 N/A N/A A2 All 11'-8" 3555 12'-6-5/8" 3825 13'-1-3/4" 4006 15'-5-1/4" 4705 15'-11-3/4" 4870 N/A N/A
A1 = Without Unit Mounted Starter A2 = With Unit Mounted Starter
COMB 032S/L 050S/L 080S/L 142M/L/E 210L 250E
(Inch) [mm] (Inch) [mm] (Inch) [mm] (Inch) [mm] (Inch) [mm] (Inch) [mm]
B All 2'-10" 864 2'-11-1 /8" 893 2'-6-1 /2" 775 3'-3-5/8" 1006 3'-10-1 /4" 1174 N/A N/A
S/S 11'-9" 3581 11'-9" 3581 11'-9" 3581 N/A N/A N/A N/A N/A N/A
C S/L, M/L, L/L 15'-6" 4724 15'-6" 4724 15'-6" 4724 15'-6" 4724 15'-6" 4724 N/A N/A
E/L N/A N/A N/A N/A N/A N/A 17'-5" 5309 N/A N/A N/A N/A
S/S 26'-5" 8052 26'-6-3/8" 8087 27'-4-1/4" 8338 N/A N/A N/A N/A N/A N/A
D S/L, M/L, L/L 33'-11-1 /4" 10343 34' 10363 34'-10-1 /2" 10630 35'-5-1 /4" 10801 35'-5-1 /4" 10801 N/A N/A
E/L N/A N/A N/A N/A N/A N/A 39'-3" 11963 N/A N/A N/A N/A
Notes:
1. EVSZ = Evaporator Size, L = Long Shell; S = Short Shell; E = Extended Shell
2. Clearance requirement to evaporator tube removal does not include water box. Add water box dimension in this figure.
3. Does not include water box. Add water box dimension to this figure.
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Top View
Do not install piping or conduit above compressor motor assembly or behind suction elbow.
CVHE, F, G Cooling and Auxiliary Units (Clearance)
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General Information
Figure 4. Tube bundle locations showing cooling only, free cooling and heat recovery and auxiliary condenser units
Free Cooling Units Heat Recovery and Auxiliary Condenser Units
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General
IP Units
Information
Table 2. Tube bundle locations for cooling only and free cooling units (inches)
Shell Cooling Only and Free Cooling Units
Size A B C D E F G H
032 2'-0-3/4" 2-5/8" 11-1/8" 7-1/4" 2'-7-3/4" 18" 10" 2'-2-3/8" 050 2'-6-3/4" 2-7/8" 9-3/8" 9-5/8" 3'-1-1/8" 1'-11-1/8" 1'-2-3/8" 2'-3-3/4" 080 3'-5-1/8" 4-1/4" 6-1/4" 11-3/8" 3'-7-3/4" 2'-4-1/8" 1'-7-1/4" 3'-7" 142 3'-10-3/8" 4-1/4" 6-5/8" 1'-2-5/8" 4'-2-3/8" 3'-3-1/8" 2'-0-7/8" 3'-8-3/8" 210 4'-5" 4-1 /2" 7-1 /8" 1'-5" 4'-11 " 3'-7-1 /2" 2'-4-1 /8" 3'-9-3/4" 250 5'-0-3/4" 5-1/2" 7-1/8" 1'-7-1/4" 5'-8-5/8" 3'-10-3/4" 2'-4-1/8" 4'-0-1/4"
Table 3. Tube locations for heat recovery and auxiliary condenser units (inches)
Shell Heat Recovery Auxiliary Condenser
Size J K L M J K L M
032 4'-6-3/8" 10-1/4" 1'-6-1/2" 4' 4'-6-3/4" 9-1/8" 1'-2" 3'-11-3/4 CVHE 050 5'-2-3/8" 1'-2-3/8" 1'-10-3/8" 4'-6" 5'-0-7/8" 9-1/8" 1'-2" 4'-8-1/4 CVHEF/G 050 6'-2-1/2" 1'-2-3/8" 1'-10-3/8" 4'-10" 6'-0-7/8" 9-1/8" 1'-2" 5'-0-5/8
080 T-3-1/8" 1'-7-1/4" 2'-4-7/8" 4'-8-3/8" 6'-10-1/2" 9-1/8" 1'-2" 5'-8-7/8
142 8'-7-3/8" 2'-0-7/8" 3'-2-1/2" 6'-2" 7'-9-3/8" 9-1/8" 1'-2" 7'-3-5/8
210 8'-7-1/2" 2'-4-1/8" 3'-7-1/2" 6'-6-5/8" 8'-7-5/8" 9-1/8" 1'-2" 3'-9-3/4
250 Not Available
Table 4. Typical shipping and operating weights (lbs.) (see note 1)
Cond Size Aux Cond Size 80 Aux Cond Size 130 Heat Rec Cond Free Cooling
CDSZ Ship Oper Ship Oper Ship Oper Ship Oper
032S 825 1057 960 1248 2119 2624 500 785 032L 825 1057 960 1248 2663 3263 500 785 050S 825 1057 960 1248 3170 4018 750 1290 050L 825 1057 960 1248 3985 4986 750 1290 080S 825 1057 960 1248 5340 6593 750 1360 080L 825 1057 960 1248 6683 8180 750 1360 142L 825 1057 960 1248 12180 14666 1400 2400 210L 825 1057 960 1248 16023 19299 1400 2400
Notes:
1. Unit-Mounted Starter Option = 530 Lbs. (Shipping and Operating)
2. Weights shown are accurate within ± 3% and are calculated with non-marine 150 psig water boxes. Marine-style water boxes may add considerably more weight;
contact LBU Marketing for details.
3. Operating weights include refrigerant, oil and water charges.
4. For more specific data on weights and isolator loading, refer to the unit submittal package.
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General
SI Units
Information
Table 2. Tube bundle locations for cooling only and free cooling units (mm)
Shell Cooling Only and Free Cooling Units
Size A B C D E F G H
32 629 67 283 184 813 457 254 670
50 781 73 238 244 943 588 365 705
80 1044 108 159 289 1111 715 489 1095 142 1178 108 168 677 1279 993 632 1127 210 1346 114 181 432 1498 1105 715 1162 250 1543 140 181 489 1743 1187 715 1225
Table 3. Tube locations for heat recovery and auxiliary condenser units (mm)
Shell Heat Recovery Auxiliary Condenser
Size J K L M J K L M
32 1381 260 470 1219 1390 232 356 1212 CVHE 50 1584 365 568 1371 1546 232 356 1429 CVHEF/G 50 1893 365 568 1473 1852 232 356 1540
80 2213 489 734 1432 2096 232 356 1749
142 2625 632 978 1880 2372 232 356 2226 210 2629 715 1108 1997 2632 232 356 1162 250 Not Available
Table 4. Typical shipping and operating weights (k) (see note 1)
Cond Size Aux Cond Size 80 Aux Cond Size 130 Heat Rec Cond Free Cooling
CDSZ Ship Oper Ship Oper Ship Oper Ship Oper
032S 374 479 435 566 961 1190 227 356 032L 374 479 435 566 1208 1480 227 356 050S 374 479 435 566 1438 1823 340 585 050L 374 479 435 566 1808 2262 340 585 080S 374 479 435 566 2422 2991 340 617 080L 374 479 435 566 3031 3710 340 617 142L 374 479 435 566 5525 6652 635 1089 210L 374 479 435 566 7268 8754 635 1089
Notes:
1. Unit-Mounted Starter Option = 236 Kg (Shipping and Operating)
2. Weights shown are accurate within ± 3% and are calculated with non-marine 1034 kPa water boxes. Marine-style water boxes may add considerably more weight;
contact LBU Marketing for details.
3. Operating weights include refrigerant, oil and water charges.
4. For more specific data on weights and isolator loading, refer to the unit submittal package.
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General Information
Table 5. Typical weights for cooling only
Type Nton EVSZ CDSZ Shipping Operating Shipping Operating
CVHE 230-320 032S 032S 13191 14379 5983 6522 CVHE 230-320 032S 032L 13735 15018 6230 6812 CVHE 230-320 032L 032L 14381 15892 6523 7209 CVHE 230-320 050S 050S 16049 18000 7280 8165 CVHE 230-320 050S 050L 16864 18968 7650 8604 CVHE 230-320 050L 050L 17796 20259 8072 9189 CVHE 360-500 050S 050S 16699 18650 7575 8460 CVHE 360-500 050S 050L 17514 19618 7944 8899 CVHE 360-500 050L 050L 18446 20909 8367 9484 CVHE 360-500 080S 080S 22682 25797 10289 11702 CVHE 360-500 080S 080L 24025 27384 10898 12421 CVHE 360-500 080L 080L 25605 29497 11614 13380 CVHF 350-570 050S 050S 15694 17645 7119 8004 CVHF 350-570 050S 050L 16509 18613 7488 8443 CVHF 350-570 050L 050L 17441 19904 7911 9028 CVHF 350-570 080S 080S 21652 24767 9821 11234 CVHF 350-570 080S 080L 22995 26354 10431 11954 CVHF 350-570 080L 080L 24575 28467 11147 12913 CVHF 555-640 050S 050S 17314 19265 7854 8739 CVHF 555-640 050S 050L 18129 20233 8223 9178 CVHF 555-640 050L 050L 19061 21524 8646 9763 CVHF 555-640 080S 080S 23272 26387 10556 11969 CVHF 555-640 080S 080L 24615 27974 11165 12689 CVHF 555-640 080L 080L 26195 30087 11882 13647 CVHF 650-910 080S 080S 24242 27357 10996 12409 CVHF 650-910 080S 080L 25585 28944 11605 13129 CVHF 650-910 080L 080L 27165 31057 12322 14087 CVHF 1060-1280 142M 142L 35538 41116 16120 18650 CVHF 1060-1280 142L 142L 36352 42286 16489 19181 CVHF 1060-1280 142M 142L 36138 41716 16392 18922 CVHF 1060-1280 142L 142L 36952 42886 16761 19453 CVHF 1060-1280 142E 142L 37840 44303 17164 20096 CVHF 1060-1280 210L 210L 44666 52513 20260 23820 CVHF 1060-1280 250E 250L 54646 65616 24787 29763 CVHF 1470 210L 210L 49980 57820 22671 26227
CVHF 1470-1720 250E 250L 59960 70930 27198 32174 CVHG 480-565 050S 050S 18449 20400 8368 9253 CVHG 480-565 050S 050L 19264 21368 8738 9693 CVHG 480-565 050L 050L 20196 22659 9161 10278 CVHG 480-565 080S 080S 24432 27547 11082 12495 CVHG 480-565 080S 080L 25775 29134 11692 13215 CVHG 480-565 080L 080L 27355 31247 12408 14174 CVHG 670-780 080S 080S 25032 28147 11355 12767 CVHG 670-780 080S 080L 26375 29734 11964 13487 CVHG 670-780 080L 080L 27955 31847 12680 14446 CVHG 670-780 142M 142L 36627 42205 16614 19144 CVHG 920-1067 142L 142L 37441 43375 16983 19675 CVHG 920-1067 142M 142L 37427 43005 16977 19507 CVHG 920-1067 142L 142L 38241 44175 17346 20038 CVHG 920-1067 210L 210L 45955 53802 20845 24405
Shell Length Designators Maximum Weights (Lbs) Maximum Weights (Kg)
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CVHE-SVN01C-EN
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General Information
Note: Immediately report any unit damage incurred during handling or installation at the job site to Trane sales office.
Rigging
Lifting is the recommended method for moving chillers. Suggested lifting arrangements for standard and heat­recovery units are illustrated in Figure 5.
Note that each of the cables used to lift the unit must be capable of supporting the entire weight of the chiller.
WARNING
Improper Unit Lift!
LIFT THE CHILLER HORIZONTALLY. Failure to do so could result in death or serious injury and equipment damage.
See Tables 2, 3 and 5 for shipping weights.
Refer to lifting arrangement and rigging in Figure 5. Notice that the lifting beam used to lift the unit must be at least 16 feet minimum effective length.
To lift the chiller properly, insert clevis connections at the points indicated in Figure 5, a 2” [51 mm] diameter lifting hole is provided at each of these points. Next attach the lifting chains or cables.
Once the lifting cables are in place, attach a safety chain or cable between the first-stage casting of the compressor and the lifting beam. To do this, remove a restraining bolt from the compressor first-stage casting and replace it with an eyebolt.
Note: There should not be tension on this safety cable; it is used only to prevent the unit from rolling during the lift.
If installing chiller onto spring isolators, follow instructions given on page 22 and Figures 8 and 9. Follow instructions provided by spring isolator manufacturer, being careful to not damage isolator adjustment bolt.
When the lift is complete, detach the clevis connections and safety chain. Then, remove the eyebolt that was used to secure the safety chain to the compressor, and reinstall the retaining colt in its place.
If the chiller cannot be moved using the conventional rigging method just described, consider these points.
1. If job site conditions require rigging of the chiller at an angle greater than 45° from horizontal (end-to-end) dowel-pin the compressor and remove it from the unit. Be sure to contact a qualified service organization for specific rigging instructions. Do not attempt to rotate chiller on to side.
CAUTION
Loss of Oil!
IF THE UNIT WILL BE LIFTED AT AN ANGLE GREATER THAN 15° FROM END-TO-END, REMOVE THE OIL FROM THE OIL TANK. Failure to do so, will cause oil to drain out of oil tank into other areas of chiller. It will be extremely difficult to return the oil to the oil tank even during operation.
2. When lifting the chiller is either impractical or undesirable, attach cables or chains to the jacking slots shown in Figure 5; then push or pull the unit across a smooth surface.
Note: The oil tank with the refrigerant pump is mounted under the condenser and may be damaged by a fork truck.
CAUTION
Improper Unit Lift!
DO NOT USE A FORKLIFT TO REMOVE THE CHILLER. Using a forklift can result in damaged equipment.
CAUTION
Compressor Misalignment!
CONSULT THE TRANE COMPANY BEFORE LIFTING THE COMPRESSOR/MOTOR ASSEMBLY FROM THE SHELLS WITHOUT FACTORY-INSTALLED DOWELING IN THE COMPRESSOR CASTING FLANGES. Failure to do so can result in misalignment of the compressor castings.
3. If removal of the compressor or economizer assembly is necessary to move the chiller into its operating location, contact The Trane Company for special instructions concerning chiller disassembly and reassembly procedures.
CAUTION
Wiring Damage!
BE CAREFUL TO AVOID DAMAGING UNIT WIRING DURING RIGGING, ASSEMBLY AND DISASSEMBLY.
CVHE-SVN01C-EN
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General Information
Figure 5. Recommended lifting arrangements for CVHE, CVHF, and CVHG units
WARNING
Heavy Objects!
Do not use cables (chains or slings) except as shown. Each of the cables (chains or slings) used to lift the unit must be capable of supporting the entire weight of the unit. Lifting cables (chains or slings) may not be of the same length. Adjust as necessary for even unit lift. Other lifting arrangements may cause equipment or property-only damage. Failure to properly lift unit may result in death or serious injury. See details below.
WARNING
Improper Unit Lift!
Test lift unit approximately 24 inches to verify proper center of gravity lift point. To avoid dropping of unit, reposition lifting point if unit is not level. Failure to properly lift unit could result in death or serious injury or possible equipment or property-only damage.
Attach safety chain or cable as shown without tension, not as a lifting chain or cable, but to prevent the unit from rolling.
Do not forklift the unit to move or lift.
Lifting holes provided on chiller to attach cables (chains or slings).
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General Information
CVHE-SVN01C-EN
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General Information
Chiller Isolation
To minimize sound and vibration transmission through the building structure and to assure proper weight distribution over the mounting surface, install isolation pads or spring isolators under the chiller feet.
Note: Isolation pads are provided with each chiller unless spring isolators are specified on the sales order.
Specific isolator loading data is provided in the unit submittal package. Also refer to Table 6. If necessary, contact your local Trane sales office for further information.
Figure 6. Isolation pad
18”
[457 mm
Isolation Pads
When the unit is ready for final placement, position isolation pads end for end under the full length of the chiller leg. The pads measure 6”×18” [152.4x457 mm] and on some units there may be small gaps between pads. Pads are provided to cover entire foot. Place 6" sides end to end under entire length of foot.
Remember that the chiller must be level within 1/16” [1.6 mm] over its length and width after it is lowered onto the isolation pads. In addition, all piping connected to the chiller must be properly isolated and supported so that it does not place any stress on the unit.
Overhead lift is recommended, if not possible, then use rectangular jacking holes in legs. See figure 5.
]
20
3/8”
[9.5 mm
]
6”
[152.4 mm
]
CVHE-SVN01C-EN
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General Information
Table 6. Isolation pad loading
Type Nton EVSZ CDSZ Left Pad (lbs) Left Pad (Kg) Right Pad (lbs) Right Pad (Kg)
CVHE 230-320 032S 032S 5758 2612 8621 3910 CVHE 230-320 032S 032L 6323 2868 8695 3944 CVHE 230-320 032L 032L 6394 2900 9519 4318 CVHE 230-320 050S 050S 7573 3435 10427 4730 CVHE 230-320 050S 050L 8428 3823 10540 4781 CVHE 230-320 050L 050L 8541 3874 11718 5315 CVHE 360-500 050S 050S 7883 3576 10767 4884 CVHE 360-500 050S 050L 8737 3963 10881 4936 CVHE 360-500 050L 050L 8818 4000 12091 5484 CVHE 360-500 080S 080S 11391 5167 14406 6535 CVHE 360-500 080S 080L 12791 5802 14594 6620 CVHE 360-500 080L 080L 12966 5881 16531 7498 CVHF 350-570 050S 050S 7298 3310 10347 4693 CVHF 350-570 050S 050L 8154 3699 10459 4744 CVHF 350-570 050L 050L 8311 3770 11593 5259 CVHF 350-570 080S 080S 10777 4888 13990 6346 CVHF 350-570 080S 080L 12178 5524 14177 6431 CVHF 350-570 080L 080L 12436 5641 16031 7272 CVHF 555-640 050S 050S 7701 3493 11564 5245 CVHF 555-640 050S 050L 8556 3881 11677 5297 CVHF 555-640 050L 050L 8726 3958 12798 5805 CVHF 555-640 080S 080S 11214 5087 15173 6882 CVHF 555-640 080S 080L 12614 5722 15360 6967 CVHF 555-640 080L 080L 12876 5841 17211 7807 CVHF 650-910 080S 080S 11835 5368 15522 7041 CVHF 650-910 080S 080L 13233 6002 15711 7127 CVHF 650-910 080L 080L 13427 6090 17630 7997 CVHF 650-910 142M 142L 19976 9061 21675 9832 CVHF 650-910 142L 142L 18791 8524 23495 10657 CVHF 1060-1280 142M 142L 20076 9106 22170 10056 CVHF 1060-1280 142L 142L 18919 8582 23967 10871 CVHF 1060-1280 142E 142L 21235 9632 23068 10464 CVHF 1060-1280 210L 210L 23030 10446 29483 13373 CVHF 1060-1280 250E 250L 30991 14058 34626 15706 CVHF 1470 210L 210L 26420 11984 31400 14243 CVHF 1470-1720 250E 250L 33520 15205 37410 16969 CVHG 480-565 050S 050S 8551 3879 11849 5375 CVHG 480-565 050S 050L 9403 4265 11965 5427 CVHG 480-565 050L 050L 9439 4282 13220 5997 CVHG 480-565 080S 080S 11910 5402 15637 7093 CVHG 480-565 080S 080L 13308 6037 15826 7179 CVHG 480-565 080L 080L 13477 6113 17771 8061 CVHG 670-780 080S 080S 12129 5502 16018 7266 CVHG 670-780 080S 080L 13527 6136 16207 7351 CVHG 670-780 080L 080L 13683 6207 18164 8239 CVHG 670-780 142M 142L 20575 9333 22160 10052 CVHG 920-1067 142L 142L 19389 8795 23986 10880 CVHG 920-1067 142M 142L 21053 9550 23082 10470 CVHG 920-1067 142L 142L 19767 8966 24409 11072 CVHG 920-1067 210L 210L 23816 10803 29986 13602
Shell Length Designators Isolator Loading
CVHE-SVN01C-EN
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General Information
Figure 7. Isolation spring placement
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General Information
Spring Isolators
Spring isolators should be considered whenever chiller installation is planned for an upper story location. Base isolator selection and placement on the information presented in Figures 8 and 9. (Notice that three types of spring isolators, each with their own maximum loading characteristics, are used with the CVHE/F/G chillers.)
Spring isolators typically ship assembled and ready for installation. To install and adjust the isolators properly, follow the instructions given.
Note: Do not adjust the isolators until the chiller is piped and charged with refrigerant and water.
1. Position the spring isolators under the chiller as shown in Figures 7 and 8. Make sure that each isolator is centered in relation to the tube sheet.
2. Set the isolators on the sub-base; shim or grout as necessary to provide a flat, level surface at the same elevation for all mountings. Be sure to support the full underside of the isolator base plate; do not straddle gaps or small shim.
3. If required, bolt the isolators to the floor through the slots provided or cement the pads.
Note: Fastening the isolators to the
floor is not necessary unless specified.
4. If the chiller must be fastened to the isolators, insert cap screws through the chiller base and into the holes tapped in the upper housing of each isolator. However, do not allow the screws to protrude below the underside of the isolator upper housing. An alternative method of fastening the chiller to the isolators is to cement the neoprene pads.
5. Set the chiller on the isolators; refer to “Rigging” for listing instructions.
The weight of the chiller will force
the upper housing of each isolator down, perhaps causing it to rest on the isolator’s lower housing. Figure 9 illustrates spring isolator construction.
6. Check the clearance on each isolator. If this dimension is less than ¼ inch on any isolator, use a wrench to turn the adjusting bolt one complete revolution upward.
Repeat this operation until a ¼
inch clearance is obtained at one or more isolators.
Note: When the load is applied to
the isolators (Step 5), the top plate of each isolator moves down to compress the springs until either:
(1) The springs support the load, or
(2) The top plate rests on the
bottom housing of the isolator.
a. If the springs are supporting
the load, screwing down on the adjusting bolt (Step 7) will immediately begin to raise the chiller.
7. Turn the adjusting bolt on each of the remaining isolators to obtain the required minimum clearance of ¼" [6.9 mm].
8. Once the minimum required clearance is obtained on each of the isolators, level the chiller by turning the adjusting bolt on each of the isolators on the low side of the unit. Be sure to work from one isolator to the next. Remember that the chiller must be level to within 1/16" [1.6 mm] over its length and width, and that clearance of each isolator must be ¼" [6.9 mm].
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Figure 8. Chiller foot/isolator orientation
Side View of Unit
General Information
End View of Unit
Center Tube Sheet Support Leg
Outside Edge of Tube Sheet
Center of Isolator Spring
Note: The spring isolator must be centered in relation to the tube sheet. Do not align the isolator with the flat
Note: The length of the isolator should be parallel
to the leg. part of the chiller foot since the tube sheet is often off-center.
Figure 9. Typical spring isolator types and construction
End of Tube Sheet
4 X .88 (22mm) Dia. Holes for Anchor­ing Units
2" Typ (51mm)
5" Typ (127mm)
2 5/8" Typ (67mm)
1 3/16" Typ (30mm)
Evaporator Tubesheet
Anchor Hole Detail
Each Corner
Type CT-4 Spring Isolators
5/8" [16 mm]
9-1/4" [235 mm] C-C foundation bolts
6-1/2" [165 mm]
Free Height
7-1/2" [191 mm]
10-1/4"
[260 mm]
Adjusting Bolt
24
Adjust the isolator so that the upper housing clears the lower housing by at least 1/4” [6 mm]
Acoustical nonskid neoprene pad (top and bottom)
Isolator Maximum Spring
Type Load Deflection Color
and Size (lbs.) (Inches) Coding
CT-4-25 1,800 1.22 Red CT-4-26 2,400 1.17 Purple CT-4-27 3,000 1.06 Orange CT-4-28 3,600 1.02 Green CT-4-31 4,400 0.83 Gray CT-4-32 5,200 0.74 White
Note: Each type CT-4 spring isolator has 4 springs.
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General Information
Figure 9 (continued). Typical spring isolator types and construction
Type CT-7 Spring Isolators
C-C Foundation Bolts
3/4" (19.0mm) 10 UNC Adjusting and leveling bolt
Adjust isolator so that the upper housing clears the lower housing by at least 1/4" (6.3mm) and not more than 1/2" (12.7mm)
Isolator Maximum Spring
Type Load Deflection Color
and Size (lbs.) (Inches) Coding
CT-7-25 3,150 1.22 Red CT-7-26 4,200 1.17 Purple CT-7-27 5,250 1.06 Orange CT-7-28 6,300 1.02 Green CT-7-31 7,700 0.83 Gray CT-7-32 9,100 0.74 White
Note: Each Type CT-7 Spring Isolator has 7 Springs
Free Height
CT-12 Spring Isolators
(2) 1-B UNC Adjusting and Leveling Bolts
1/4" (6.3mm) Acoustical nonskid neoprene pad (top and bottom)
Isolator Maximum Spring
Type Load Deflection Color
and Size (lbs.) (Inches) Coding CT-12-25 5,400 1.22 Red CT-12-26 7,200 1.17 Purple CT-12-27 9,000 1.06 Orange CT-12-28 10,800 1.02 Green CT-12-31 13,200 .83 Gray CT-12-32 15,600 .74 White
Note: Each type CT-12 spring isolator has 12 springs.
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General Information
Figure 9 (continued). Typical spring isolator types and construction
CT-16 Spring Isolators
9"
(228.6
mm)
4 1/2"
(114.3
mm)
7 1/2"
(190.5
mm)
3 3/4"
(95.2 mm)
15" (381.0 mm)
13"
(330.2 mm)
7 1/2"
(190.5 mm)
6 1/2"
(65.1 mm)
3/4" (19.0 mm) Dia. Holes (4) Req’d
Isolator Maximum Spring
Type Load Deflection Color
and Size (lbs.) (Inches) Coding CT 16-26 9600 1.17 Purple CT 16-27 12000 1.06 Orange CT 16-28 14400 1.02 Green CT 16-31 17600 0.83 Gray CT 16-32 20800 0.74 White
Note: Each type CT-16 spring isolator has 16 springs.
7 3/4" Free
Height
(196.8 mm)
3/4"
(19.0 mm)
CT-20 Spring Isolators
(381.0 mm)
7 1/2"
(190.5
mm)
9"
(228.6
mm)
3 3/4"
4 1/2"
(95.2
(114.3
mm)
mm)
7 3/4" (200.0 mm) Free Height
3/4"
(19.0 mm)
13 1/4"
(336.5 mm)
(168.2 mm)
17" (431.8 mm)
15"
15 1/4" (387.3 mm)
6 1/16"
8 1/2"
(215.9 mm)
7 1/2"
(190.5 mm)
7 3/8"
(193.6 mm)
1/4" (6.3 mm) Acoustical Non­Skid Neoprene Pad Top & Bottom
(2) 1 5/8 (28.5 mm) 7 Unc Adjusting & Leveling Bolts
1/4" (6.3 mm) Acoustical Non­Skid Neoprene Pad Top & Bottom
(2) 1 5/8 (28.5 mm) 7 Unc Adjusting & Leveling Bolts
3/4" (19.0 mm) Dia. Holes (4) Req’d
Isolator Maximum Spring
Type Load Deflection Color
and Size (lbs.) (Inches) Coding CT 20-26 12000 1.17 Purple CT 20-27 15000 1.06 Orange CT 20-28 18000 1.02 Green CT 20-31 22000 0.83 Gray CT 20-32 26000 0.74 White
Note: Each type CT-20 spring isolator has 20 springs.
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General Information
Unit Leveling
Follow the instructions outlined below and illustrated in Figure 10 to determined whether or not the chiller is set level.
1. Measure an equal distance up from each foot of the chiller and make a punch mark at each measured distance.
2. Suspend a clear plastic tube along the length of the chiller as shown in Figure 10.
Figure 10. Checking unit levelness
Raise chiller at one end to align match marks with water level.
3. Fill the tube with water until the level aligns with the punch mark at one end of the chiller; then check the water level at the opposite mark.
If the water level does not align
with the punch mark, use full­length shims to raise one end of the chiller until the water level at each end of the tube aligns with the punch marks at both ends of the chiller
4. Once the unit is level across its length, repeat Steps 1 through 3 to see if unit is level across the width.
Measure and mark an equal distance up from each chiller foot.
CVHE-SVN01C-EN
Clear Plastic Tube (Fill tube with water to punch mark.)
27
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Trane A business of American Standard Companies www.trane.com
For more information contact your local district office or e-mail us at comfort@trane.com
Literature Order Number
File Number
Supersedes
Stocking Location
CVHE-SVN01C-EN
SV-RF-CTV-CVHE-SVN01C-EN-105
CVHE-SVN01B-EN 104
La Crosse
Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
Only qualified technicians should perform the installation and servicing of equipment referred to in this publication.
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