iom-cliwp-cf-eng
www.clima-flex.com.mx
37
NOTE: Upon verifying all installation points and confirming the accuracy of all unit components, the unit is ready to be energized.
Activate the unit by turning the switch on the CONTROL UNIT to the ON position, which supplies the control unit with 24 volts.
INSPECTION OF THE CONTROL PANEL
Condition
Yes
No
Is the control panel free from any foreign objects ?
Are all wiring terminals (including main power supply) tight ?
On 208-230V units is control transformer (24 AC) wired for correct voltage ?
Prepare the power supply unit for operation with three-phase electrical current.
Confirm that the phase unbalance remains within 2% of the average value.
Activate each fan individually to ensure the correct rotation direction.
INSPECTION OF THE CONDENSATE SECTION
Condition
Yes
No
Has water been placed in drain pan to confirm proper drainage ?
Are correct filter in place?
CHECK RATED VOLTAGE AT TERMINAL BLOCK FOR IMBALANCE BEFORE STARTING OF UNIT
208/230V 1 Phase
208/230V 3 Phase
460v 3 Phase
Mesured line to line Volts L1 & L2
V.
L1 & L3
V.
L2 & L3
V.
(L1 & L2+ L1 & L3 + L2 & L3) / 3 = Avg. Voltage =
Max. Deviation from avg.voltage =
Volts
Voltage imbalance = (100 x Max. Deviation) / avg. Volatge =
%
A voltage deviation greater than 2% with the unit running should be addressed and corrected.
Excess voltage deviation can cause the compressor to overheat and to operate inefficiently.
START UP
Three phase units only check fan and compressor rotation.
COOLING MODE CHECK AND RECORD REFRIGERANT PRESSURES
Confirm voltage imbalance.
Measured line to line Volts L1 & L2
V.
L1 & L3
V.
L2 & L3
V.
(L1 & L2+ L1 & L3 + L2 & L3) / 3 = Avg. Voltage =
Max. Deviation from avg.voltage =
Volts
Voltage imbalance = (100 x Max. Deviation) / avg. Voltage =
%