Carrier 30HXC - Cooler Pressure Drop Check; Condenser Pressure Drop Check; Perform TEST Function; Record Stabilized Temperatures and Pressures

48
Check pressure drop across the condenser
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 litres per
second (l/s) and nd unit’s minimum ow rate.
Total l/s = .................................................
l/s / nominal kW = ..................................
Total l/s is greater than unit’s minimum ow rate
Total l/s meets job specied 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
instructions in the Controls and Troubleshooting literature (follow the procedure in the Controls IOM).
Cooler uid select ......................................................................... External reset sensor ................................................................
Minimum load select .................................................................... Cooler pump interlock .............................................................
Loading sequence select .............................................................. Cooler pump control ................................................................
Lead/lag sequence select .............................................................. Condenser pump control*........................................................
Head pressure control .................................................................. Condenser ow switch* ............................................................
Motormaster select* ..................................................................... Condenser water sensors* .......................................................
Water valve type* ......................................................................... *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:
Cooler EWT .................................................................................. Condenser EWT .......................................................................
Cooler LWT ................................................................................... 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 ............................................
NOTE FOR OPTION 51:
The pouch supplied with the unit contains the label indicating the refrigerant used and describing the procedure required under
the Kyoto Protocol F-Gas Regulation:
• Attach this label to the machine.
• Follow and observe the procedure described.