34
Check pressure drop across the condenser (30HXC only)
Entering condenser = ................................ (kPa)
Leaving condenser = ................................ (kPa)
(Leaving - entering) = .............................. (kPa)
WARNING
Plot condenser pressure drop on performance data chart (in product data literature) to determine total liters per second (l/s) and
find unit's minimum flow rate.
Total l/s = ..................................................
l/s / nominal kW = ....................................
Total l/s is greater than unit's minimum flow rate
Total l/s meets job specified requirement of .......................................... (l/s)
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 instruc-
tions 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.
External reset sensor ...................................................................
Cooler pump interlock ................................................................
Cooler fluid select .......................................................................... Cooler pump control ...................................................................
Minimum load select ...................................................................... Condenser pump control* ...........................................................
Loading sequence select ................................................................. Condenser flow switch* .............................................................
Lead/lag sequence select ................................................................ Condenser water sensors* ..........................................................
Head pressure control .....................................................................
Motormaster select* ....................................................................... *If installed
Water valve type* ...........................................................................
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
Cooler EWT ................................................................................... Ambient temperature (GX) .........................................................
Cooler LWT .................................................................................... Condenser EWT .........................................................................
Condenser LWT ..........................................................................
Circuit A oil pressure ...................................................................... Circuit B oil pressure ..................................................................
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 ................................................
NOTES:
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Содержание 30GX 082-358
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