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Perform test function (indicate positive result):
WARNINg: Once power is supplied to the unit, check the display for any alarms, such as phase reversal. follow the
TEST function instructions in the Controls and Troubleshooting literature (follow the procedure in the Controls IOM).
Be sure all service valves are open before beginning the compressor test section.
Examine and register the configuration at the installation site <2> <SRVC>
Evaporator fluid select ................................................................. External reset sensor ................................................................
Minimum load select .................................................................... Evaporator pump interlock .....................................................
Loading sequence select .............................................................. Evaporator pump control ........................................................
Lead/lag sequence select ..............................................................
Head pressure control ..................................................................
Motormaster select* ..................................................................... *If installed
to start the chiller
WARNINg: Be sure that all service valves are open, and all pumps are on before attempting to start this machine.
Once all checks have been made, move the switch to “LOCAL” or “REMOTE” from “Off”.
Unit starts and operates properly
temperatures and pressures
WARNINg: Once the machine has been operating for a while and the temperatures and pressures have stabilized,
record the following:
Evaporator EWT .......................................................................... Ambient temperature ..............................................................
Evaporator LWT ........................................................................... Condenser EWT .......................................................................
Condenser LWT ........................................................................
Circuit A suction pressure ........................................................... Circuit B suction pressure ........................................................
Circuit A discharge temperature ................................................ Circuit B suction temperature .................................................
Circuit A suction temperature .................................................... Circuit B discharge pressure ....................................................
Circuit A discharge pressure ....................................................... Circuit B discharge temperature .............................................
Circuit A liquid line temperature ............................................... Circuit B liquid line temperature ............................................
Compressor oil pressure A1* ..................................................... Compressor oil pressure B1* ..................................................
A2* .....................................................
B2* ..................................................
A3* .....................................................
B3* ..................................................
A4* .....................................................
B4* ..................................................
* if installed
NOTES:
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