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Unit start-up
The chilled water pump contactor has been correctly cabled with the chiller
The oil level is correct
The unit has been checked for leaks (including couplings)
Locate, repair, and report any refrigerant leaks
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Check voltage imbalance: AB................
Average voltage = ................................... (see installation instructions)
Maximum deviation = ............................ (see installation instructions)
Voltage imbalance = ............................... (see installation instructions)
Voltage imbalance is less than 2%
WARNING
Do not start the chiller if the voltage imbalance is greater than 2%. Contact your local power company for assistance.
All incoming power voltage is within the nominal voltage range
The compressor crankcase heaters have been running for 6 hours
Check of the evaporator water loop
Water loop volume .............. = ................... (litres)
Calculated volume ............... = ................... (litres)
Correct loop volume established
Correct loop corrosion inhibitor included ....... litres of ...............................
Correct loop frost protection included (if required) ....................................... ....... litres of ........................
Water pipes have been fitted an electric heater for trace heating up to the evaporator
Return water piping is equipped with a screen filter with a mesh size of 1.2 mm
Checking the pressure drop across the evaporator (without hydraulic module) or ESP* (with hydraulic module)
Evaporator inlet = ................................................ (kPa)
Evaporator outlet = .............................................. (kPa)
Pressure drop (Inlet - Outlet) = .......................... (kPa)
*ESP: External Static Pressure
WARNING
Plot the pressure drop on the evaporator flow/pressure drop curve to determine the flow rate in l/s at the nominal operating
conditions for the system.
If necessary use the control valve to adjust the flow rate to the desired value.
For units with hydraulic module, an indication of the flow is displayed by the unit control (see the 30RQM/30RQP control
manual).
Flow rate from the pressure drop curve, l/s = ........................
Nominal flow rate, l/s = ......................
The flow rate in l/s is higher than the minimum unit flow rate
The flow rate in l/s corresponds to the specification of ................... (l/s)
60
AC................
BC................
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