Unit Start-up
98 RTHD-SVX02H-EN
Installation Checklist for Model RTHD Series R
To: Trane Service Company
S.O. No.: Serial No:
Job/Project Name:
RECEIVING
Verify that the unit nameplate data corresponds to the ordering information.
Inspect the unit for shipping damage and any shortages of materials. Report any damage or shortage to the carrier.
UNIT LOCATION AND MOUNTING
Inspect the location desired for installation and verify adequate service access clearances.
Provide drainage for evaporator and condenser water.
Remove and discard all shipping materials (cartons, etc.)
Install optional spring or neoprene isolators, if required. Refer to IOM for details.
Level unit and secure it to the mounting surface.
UNIT PIPING
Caution:
If using an acidic commercial flushing solution, construct a temporary bypass around the unit to prevent
damage to the internal components of the condenser and evaporator. To avoid possible equipment damage,
do not use untreated or improperly treated system water.
Flush all unit water piping before making final connections to unit.
Connect water piping to the evaporator and condenser.
Install pressure gauges and shutoff valves on the water inlet and outlet to the evap. and cond.
Install water strainers in the entering chilled water and condenser water lines.
Install balancing valves (discretionary) and flow switches in the leaving chilled and condenser water lines.
Install drains with shutoff valves or drain plugs on the evaporator and condenser.
Vent the chilled water and condenser water systems at the high points of the system piping.
Pipe relief valves outdoors in accordance to ASHRAE 15, the IOM and local code.
ELECTRICAL WIRING
WARNING:
To prevent injury or death, disconnect electrical power source before completing wiring connections on the
unit.
Check for tight connections for the unit power supply wiring with the fused disconnect Unit-mounted circuit breaker (or
unit-mounted disconnect) in the power section of the control panel.
Check for tight 115 volt control wiring connections to the chilled water pump and condenser water pump
Check Interlock Wiring, including chilled water pump control, chilled water flow interlock, condenser water
pump, condenser water flow interlock, external auto stop. For further details refer to the IOM or the unit wiring.
Caution:
Information on Interconnecting Wiring: Chilled Water Pump Interlock and External Auto/Stop must be adhered to or
equipment damage may occur.
If remote Alarm contacts, Limit Warning Contact, Outdoor Air Temperature Sensor, Emergency Stop, Head Relief Request
Contact, Ice Making, External Chilled Water Setpoint, External Current Limit Setpoint, Percent Condenser Pressure output
are used refer to the IOM and the unit wiring for further details.
Control power wiring isolated in control panel/starter panel enclosure.
Is chilled water pump control by UCP2, CH530, UC800 or Others (circle one)
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