Pre-Start Checklist - Trane CGA-SVX01A-EN Installation, Operation And Maintenance Manual

PRE-START CHECKLIST

Inspect all wiring connections; electrical
connections should be clean and tight.
Check power supply voltage to the unit at
the main power fused disconnect switch.
Fill the chilled water circuit, leaving the
system air vents open. Close vents after
all air is out, and the system is completely
filled.
Remove jumper wire across terminals 1
and 5 (in the control panel) for water
system testing.
Close the fused disconnect switch and
start the unit by turning the REMOTE/
OFF/ON switch to ON position. Pump
should start and with water circulating
through the chilled water system, inspect
all piping connections for leaks and make
any necessary repairs.
Adjust the water flow rate through the
chilled water circuit, and check the
external available water pressure of the
unit (for standard unit) or the evaporator
water pressure drop for the no-pump
option unit.
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NOTE: With the water pump operating,
throttle the water flow to approximately
50% of the full flow rate. Following the
manufacturer's instructions, adjust the
flow switch contacts to open at this
point. Use an ohmmeter to verify opening
and closure of the flow switch contacts.
Stop the chilled water pump.
Open all fused disconnect switches.
Make electrical connection of flow switch
to terminals 1 & 5 in the control panel.
CGA-SVX01A-EN