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CVHM Water-cooled CenTraVac™ 
Chillers

Disassembly and Reassembly Units

Installation Instructions

August 2020

CVHM-SVN001C-EN

Model

CVHM

SAFETY WARNING

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of 
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. 
Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. 
When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are 
attached to the equipment.

X39641319003

Summary of Contents for CenTraVac CVHM

Page 1: ...stallation starting up and servicing of heating ventilating and air conditioning equipment can be hazardous and requires specific knowledge and training Improperly installed adjusted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached to th...

Page 2: ...y hazardous situation which if not avoided could result in minor or moderate injury It could also be used to alert against unsafe practices NOTICE Indicates a situation that could result in equipment or property damage only accidents WARNING Proper Field Wiring and Grounding Required Failure to follow code could result in death or serious injury All field wiring MUST be performed by qualified pers...

Page 3: ... Trane products Trane or an agent of Trane specifically authorized to perform start up and warranty of Trane products will provide qualified personnel and standard hand tools to perform the disassembly and reassembly work at a location specified by the contractor The contractor shall provide the rigging equipment such as chain falls gantries cranes forklifts etc necessary for the disassembly and r...

Page 4: ...r in part without written permission Trane reserves the right to revise this publication at any time and to make changes to its content without obligation to notify any person of such revision or change Trademarks All trademarks referenced in this document are the trademarks of their respective owners Revision History Updated information for AFD drive ...

Page 5: ...10 Contractor Responsibilities 10 Wiring Disassembly 11 Adaptive Frequency Drive Removal 11 Purge Unit Removal 12 Control Panel Removal 13 Tracer AdaptiView Display Arm Removal 14 Compressor Motor Assembly Removal 14 Economizer Removal 17 Condenser Evaporator Disassembly 18 Reassembly 19 Tightening Flanges 20 Brazing 21 Final Installation Procedures 21 ...

Page 6: ... are metric except waterbox and oil system hardware Note Use only new O rings and gaskets Do NOT reuse O rings or gaskets Components Figure 1 CVHM components page 1 of 2 Detail A Motor Cooling Return Tube Motor Casting Compressor Base Condenser Evaporator Economizer ...

Page 7: ...Weights CVHM SVN001C EN 7 Figure 1 CVHM components page 2 of 2 1st Volute Discharge 2nd Volute Discharge Wrap Around Pipe See Detail A Condenser Discharge Connection Drive Removed for Clarity Drive Removed for Clarity ...

Page 8: ...oles on the top of the drive can be used for lifting the drive Figure 2 CVHM drive dimensions in 56 5 8 15 11 16 5 5 8 22 1 7 8 CENTER OF GRAVITY 26 TO 31 CENTER OF GRAVITY 10 TO 12 72 5 16 1 11 16 51 5 16 6 1 8 39 1 3 8 1 3 4 35 7 16 34 1 16 5 8 13 16 ...

Page 9: ...re required for lifting the compressor assembly metric threads Note Wrap pipe requires three 5 8 in shackles Trane recommends using Crosby screw pin shackles model S 209 stock number 1018482 with 5 8 in pin Table 1 Maximum CVHM unit component weights Component Maximum Weight lb kg Condenser without waterboxes 4253 1934 Condenser waterboxes 923 420 Evaporator without waterboxes 6095 2771 Evaporator...

Page 10: ...ing refrigerants or oils could result in equipment damage including bearing damage introduction of acids into the chiller or continuous purge pump out in high head high ambient applications CenTraVac chillers are manufactured with different refrigerant oil systems R 123 chillers using OIL00022 and R 514A chillers using OIL00334 OIL00335 Verify proper refrigerant and oil for your chiller and do NOT...

Page 11: ...ed spaces or the AFD cabinet shipped disassembled from the chiller use the following general information and instructions The maximum weight of the drive is 1900 lb 862 kg Note For specific weights of the AFD cabinet refer to submittal package 1 Remove the AFD upper support bracket bolts at the wrap around pipe side There are two bolts in each bracket 2 Close the isolation valves for the AFD cooli...

Page 12: ...led to ensure no contaminates are allowed into the system Due to the hygroscopic nature of the oil install a new filter after the chiller has passed through the restricted space Installation of the AFD cabinet is essentially the reverse of the removal procedure All mounting bolts should be torquedtoANSIstandardsbased onthe boltdiameter The motor power wires connecting to the drive output terminals...

Page 13: ...ur bolts from the bottom of the panel which secure the panel to the lower mounting brackets 3 Loosen the two bolts on the back of the panel which secure the panel to the top mounting brackets See Figure 5 Figure 3 Purge unit Figure 4 Purge unit detail WARNING Hazardous Voltage w Capacitors Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury...

Page 14: ...embling the chiller Cap or cover open lines to prevent entry of foreign material Figure 6 Control panel mounting brackets details WARNING Hazardous Voltage w Capacitors Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury Disconnect all electric power including remote disconnects and discharge all motor start run capacitors before servicing ...

Page 15: ...n shackle model S 209 stock number 1018482 with a 5 8 in pin is acceptable as shown in Figure 10 Figure 8 Lubrication system Figure 9 Lubrication system detail WARNING Heavy Objects Failure to follow instructions below or properly lift component could result in component dropping and possibly crushing operator technician which could result in death or serious injury and equipment or property only ...

Page 16: ...ve the two piece wrap pipe The wrap pipe can be disassembled at the mid flange joint a Lift the wrap pipe from the chiller being careful to avoid damaging flange surfaces b Install protective covers on the evaporator wrap pipe and compressor connections Plastic secured with duct tape makes an adequate cover if no heavy objects are set on the openings c Remove the second stage volute to condenser b...

Page 17: ...et it on a pallet Cover all openings to prevent the entry of foreign material into the economizer condenser and compressor 10 Use the reverse order to reassemble the economizer on the chiller Be sure to install new O rings at the appropriate joints NOTICE Handle with Care Failure to follow instructions below could result in equipment damage The cast iron base of the compressor and the discharge fl...

Page 18: ...shell support see Figure 16 Then remove the bolts from the flanges connecting the shells 4 Reassemble the evaporator and condenser shells in the reverse order Note Install the top bolts first as these have limited clearance and act as dowel pins 5 Torque all bolts to specifications listed in Table 2 p 20 WARNING Heavy Objects Failure to follow instructions below or properly lift component could re...

Page 19: ... base plate to protect the bare metal Install two new roll pins into the compressor casting Align the pins into the compressor mounting base Insert the bolts in the compressor base and discharge flange connections 4 Tighten the compressor base and discharge flange bolts See Table 2 p 20 for bolt torque specifications 5 Remove the lifting equipment 6 Set up dial indicators on the compressor end of ...

Page 20: ...d 13 Torque all bolts to specifications listed in Table 2 14 Reconnect the previously cut compressor supply and return lines oil supply and return lines and the motor cooling lines using the factory supplied couplings Tightening Flanges Flanges with 8 or 12 Bolts Tighten all bolts to a snug tightness following the numerical sequence for the appropriate bolt pattern as shown below Repeat this seque...

Page 21: ...nstallation can proceed for unit piping wiring etc After installation has been completed fill out CTV ADF001 EN CenTraVac Installation Completion Check Sheet and Request for Trane Service to schedule the startup the chiller commissioning process can be completed by Trane or under the supervision of authorized Trane personnel Note CTV ADF001 EN is also included in the Forms section of CVHM SVX001 E...

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Page 24: ...are committed to using environmentally conscious print practices Trane by Trane Technologies NYSE TT a global climate innovator creates comfortable energy efficient indoor environments for commercial and residential applications For more information please visit trane com or tranetechnologies com CVHM SVN001C EN 28 Aug 2020 Supersedes CVHM SVN001B EN Feb 2019 ...

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