CCHA/ECHA – CCHBA/ECHBA
Installation, operation and maintenance instructions
8
BEFORE START UP
•
Check the following points:
o
Wires are well tightened.
o
Panels are firmly secured with screws.
o
There are no oil or refrigerant leaks.
o
The unit is correctly levelled.
o
There is enough space for service and maintenance.
o
Drainage is not blocked.
o
Crankcase heater has been working at least 24 hours prior to the start-up.
o
Air filters are clean and correctly mounted.
o
Grilles, air diffusers, air ducts and flexible connections are in good condition.
o
Electrical power source is in accordance with what is said in the nameplate.
o
Fans rotate in the right direction.
.
START UP
•
Start up should be performed by qualified technical people.
•
Use a start up check list: record inlet and outlet temperatures and pressures, outdoor air
temperature, volts and amps of each compressor and each fan motor, suction and discharge
pressure of each compressor.
•
Use a similar check list for service and maintenance works.
•
Remember that after 4 hours of operation, it is necessary to clean the filters.
•
Monitor at least 3 cooling cycle operations.
