Trane CAUC-C20, Installation Operation & Maintenance

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17
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 assist the installing per-
sonnel 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
[ ] 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 liquid line
components and guidelines.
[ ] Install properly sized discharge (hot gas) line(s) between
the discharge line connections on the unit and the com-
pressor unit. Refer to the “Refrigerant Piping” section for
recommended discharge line components and guide-
lines.
[ ] Install shutoff valves in the liquid line(s) to isolate the fil-
ter drier(s) for service.
[ ] Install proper filter driers in each liquid line.
[ ] Leak test the system. Refer to the “Refrigerant Piping”
section for recommended procedures.
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) in the unit control panel.
[ ] Install proper grounding wires to an earth ground.
Field Installed Control Wiring
[ ] Verify that the Control transformer (1T1) is wired for the
proper operating voltage.
[ ] Install the interlock circuitry wiring between the unit and
the appropriate compressor unit to permit condenser fan
operation when the compressor starter auxiliary contacts
closes. Refer to the Field Connection Diagram that
shipped with the unit for interlocking information.
[ ] Verify the appropriate jumpers have been installed on the
unit to allow proper condenser fan operation (If appli-
cable). Refer to the control wiring diagram that shipped
with the unit for jumper details.