40
Unit start-up
a.
Oil heaters have been energised for at least 24 hours (30XAV-ZE)
b.
All discharge and liquid valves are open
c.
All suction valves are open, if equipped
d.
All oil line valves and economiser valves (if equipped) are open
e.
The contractor
f.
Checks have been carried out for any possible leaks. The unit has been leak checked (including fittings)
f1. On the whole unit
f2. At all connections
Locate and report any refrigerant leaks
g. Check voltage imbalance:
AB
AC
BC
Average voltage
=
V
Maximum deviation
=
V
Voltage imbalance
=
%
h.
Voltage imbalance is less than 2%
WARNING: Operation of the chiller with an improper supply voltage or excessive phase imbalance constitutes abuse
which will invalidate the Carrier warranty. If the phase imbalance exceeds 2% for voltage, or 10% for current,
immediately contact your local electricity supply at once and ensure that the chiller is not switched on until corrective
measures have been taken .
Check evaporator water loop
Water loop volume
= ................................................................................
litres
Calculated volume
= .............................................................................................. litres
3.25 liters / nominal kW capacity for air conditioning
6.5 liters / nominal kW capacity for cooling in industrial processes
Proper loop volume established
Proper loop corrosion inhibitor included
.................................................
litres of
............................
Proper loop freeze protection included (if required)
.................
litres of
............................
Piping installation is equipped with heating cables, if exposed to temperatures below 0 ° C.
Return water piping is equipped with a screen filter with a mesh size of 1.2 mm
Check pressure drop across the cooler
Entering cooler
=............................................kPa
Leaving cooler
=..............................................kPa
Pressure drop (entering - leaving)
=..........................................................kPa
WARNING: Plot cooler pressure drop on performance data chart (in product data literature) to determine total litres
per second (l/s) and find unit’s minimum flow rate.
Total =............................................................................l/s
Nominal kW =..............................................................l/s
The total is above the minimum flow unit
The total corresponds to specifications..................l/s
WARNING: Once the unit is switched on, check for any alarms (refer to the manual IOM Control 30XAV-ZE to view
the Alarm menu).
Report all alarms :................................................................................................................................................................................
Special Remarks : ................................................................................................................................................................................
