Installation, Start-Up, Adjustment and Maintenance Manual
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7. SERVICING AND MAINTENANCE
This manual is an integral and essential part of the product and must be given to the owner.
Performing correct preventive service and maintenance will help to guarantee long life of the unit with high
efficiency and low maintenance costs.
ONLY Authorized Technicians (TAC) strictly complying with the manufacturer’s instructions and
the local standards should perform maintenance and service on the UNIT internal components.
Lubrication of condenser fan, hydraulic pump, and pre-mixer motor is not recommended.
The operations described below must be performed
once a year
. If the unit is installed on a heavy-duty
installation (industrial plants, 24hr operation etc.), it is necessary
to increase the frequency
of checks and
services.
MAINTENANCE TO BE PERFORMED ON THE UNIT:
-
Cleaning of the condenser /absorber coils
-
Check condenser fan height
Before any type of service is performed, ALWAYS shut-off the power supply at the main switch.
CLEANING THE CONDENSER / ABSORBER COILS
It is recommended to clean the condenser / absorber coils regularly since the UNIT cooling capacity can be
greatly reduced by dirt on the coils (see Figure 32). The user, installer or service technician can perform this
operation. To clean condenser / absorber coil proceed as follows:
1. Shut off the power and gas supply.
2. Remove the covering panels.
3. Use a brush to remove dirt from the outside and inside of the condenser/absorber coils.
4. Using water pressure, wash the coils from in to out and from top to bottom. Care should be taken not to
spray electrical components or to damage the aluminum fins.
5. Check that all dirt is removed.
6. Replace the panels.
7. Turn on the power and gas supply.
8. Start unit to check for correct operation.
Do not use solvents for cleaning the condenser/absorber coils; this could cause damage to the
aluminum fins.
WARNING
NOTE
NOTE