Unit start-up
Chilled water pump contactor has been correctly cabled with the chiller
Oil level is correct
Unit has been leak checked (including fittings)
Locate, repair, and report any refrigerant leaks
............................................................................................................................................................................................................
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Check voltage imbalance: AB................ AC................ BC................
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 evaporator water loop
Water loop volume
= ...............................
(litres)
Calculated volume
= ...............................
(litres)
2.5 litres/nominal kW capacity for air conditioning
6.50 litres/nominal kW capacity for air conditioning
Proper loop volume established
Correct loop corrosion inhibitor included ............ litres of.......................................................................................
Proper loop frost protection included (if required) ........... litres of
Water pipes have been fitted with trace heating up to the evaporator
Return water piping is equipped with a screen filter with a mesh size of 1.2 mm
Check pressure drop on the evaporator (without hydronic module) or ESP
(1)
(with hydronic module)
Evaporator inlet =
(kPa)
Evaporator outlet =
(kPa)
Pressure drop (Inlet - Outlet) =
(kPa)
(1) 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 AQUACIAT
POWER
ILD ST / HE 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 corresponds to the specification of .................................................................. (l/s)
15 - UNIT START-UP CHECKLIST FOR INSTALLERS PRIOR TO CONTACTING
THE MANUFACTURER
AQUACIAT
POWER
ILD
EN-70
