Trane RAUC-IOM-15, Installation & Maintenance Instructions Manual

Page: 19 / 68

19
Installation (Continued)
General Unit Requirements
The checklist listed below is a summary of the steps re-
quired to successfully install a commercial air cooled con-
denser. This checklist is intended to acquaint the installing
personnel with what is required in the installation process. It
does not replace the detailed instruction called out in the
applicable sections of this manual.
[ ] Verify that the power supply complies with the unit name-
plate specifications.
[ ] Check the unit for shipping damage and material short-
age; file a freight claim and notify Trane office.
[ ] Verify that the installation location of the unit will provide
the required clearance for proper operation.
[ ] Install appropriate isolators, if required.
Refrigerant Piping Requirements
[ ] Install properly sized liquid line(s) between the liquid line
connections on the unit and the evaporator, (i.e., DX
evaporator or an EVP Chiller Barrel). Refer to the “Re-
frigerant Piping” section for recommended line compo-
nents and guidelines.
[ ] Install a properly sized liquid line isolation solenoid valve
in each liquid line.
[ ] Install refrigerant rated shutoff valves in the liquid line(s)
to isolate the filter drier(s) for service.
[ ] Install a properly sized filter drier in each liquid line.
[ ] Install a properly sized filter in each suction line.
[ ] Install properly sized suction line(s) between the suction
line connections on the unit and the evaporator, (i.e., DX
evaporator or an EVP Chiller Barrel). Refer to the “Re-
frigerant Piping” section for recommended line compo-
nents and guidelines.
[ ] Install properly sized hot gas bypass line(s) between the
hot gas bypass connections on the unit and the evapora-
tor, (i.e., EVP Chiller Barrel, if applicable).
[ ] Insulate the suction line.
[ ] Leak test the system. Refer to the “Refrigerant Piping”
section for recommended procedures.
EVP Chilled Water Piping Requirements
[ ] Install properly sized chilled water pipe between the EVP
chiller and the supporting equipment. Refer to the
“Chilled Water Piping” section for recommended system
components and guidelines. Ensure that the recom-
mended components have been installed:
Water pressure gauges (with isolation valves)
Thermometers
Chiller isolation (shutoff) valves in the solution inlet and
outlet piping
Strainer in the solution inlet piping
Balancing valve
Flow switch in the solution outlet piping
Chilled solution sensor well and sensor on the chiller
outlet stubout pipe
Chiller drain plug, or drain piping with a shutoff valve
[ ] Flushing the chilled solution piping system, if applicable.
Note: If using an acidic, commercial flushing
solution, to prevent damage to the internal
evaporator components, flush all chilled solution
piping before making the final connection to the
EVP chiller barrel.
[ ] Connecting the chilled solution piping to the chiller barrel.
[ ] Install heat tape and insulation, if necessary, to protect
any exposed solution piping from external freezing condi-
tions.
Main Electrical Power Requirements
[ ] Verify the power supply meets the required power re-
quirements of the system.
[ ] Install power wiring in accordance with all applicable
codes.
[ ] Install and connect properly sized power supply wiring,
with over current protection, to the main power terminal
block (1TB1) or to an optional factory mounted nonfused
disconnect switch (1S1) in the control panel.
[ ] Install and connect properly sized power supply wiring,
with over current protection, to the proper termination
point in the air handling unit (If applicable).
[ ] Install and connect properly sized power supply wiring,
with over current protection, to the proper termination
point for the chilled solution pump (EVP units only).
[ ] Install proper grounding wires to an earth ground.