Airwell AQC 40-75, Руководство по установке и обслуживанию

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English
10 - Maintenance
Carefully read the “Safety” section of this manual before carrying
out any maintenance operations.
DANGER
Do not discharge the refrigerant into the
atmosphere while the refrigeration circuits
are being drained. Use appropriate recovery
equipment.
When the recovered refrigerant cannot be re-
used, return it to the manufacturer.
DANGER
Do not throw away the waste oil of the
compressor, because it contains refrigerant in
solution.
The waste oil must be returned to the
manufacturer.
Unless otherwise specified, the operations described below may be
carried out only by a trained maintenance operator.
10.1 General requirements
Units have been designed for continuous operation, providing
that they are subjected to regular maintenance, within the limits
specified in this manual. Each unit must be serviced according to the
programme by the User/Customer, and must be inspected at regular
intervals by the personnel of one authorised Service Centers.
It is the responsibility of the User to meet these maintenance
requirements and/or to enter into an agreement with one of authorised
Service Centers, so as to properly safeguard the operation of the
appliance.
During the warranty period, in case of damage or failures caused
by improper maintenance, manufacturer will not refund the costs
incurred to repair the appliance in its original state.
The provisions of this section apply only to standard units; according
to the order requirements, other documentation may be added,
concerning any modifications or supplementary accessories.
10.2 Planned maintenance
Maintenance inspections must be carried out according to the
program below, by a qualified person.
As a general rule, units cannot be repaired directly by the user, who
shall not try to service or repair any failures or anomalies identified
during daily inspections. If you are in doubt, please contact authorised
Service Centre.
Operations
Daily
W
eekly
Monthly
Beginning of season
End of season
Check the temperature
of the leaving fluid
•
Check the pressure drops
in the heat exchanger
•
Check for electric absorption
•
Check suction pressure
and temperature
•
Check delivery pressure
and temperature
•
Check the oil level in the compressor
•
Check that there are no gas bubbles
in the liquid line
•
Check that the fins of
the external coil are clean (if any)
•
Check the operation of the oil heaters
•
Check the remote control switches
•
Check the operation
of the LP pressure switch
•
Check the operation
of the HP pressure switch
•
Check the insulation of
the heat exchanger
•
Check that terminals are tightened
•
Check that the terminals’
screws are tightened
•
Clean the exterior of the unit
with water and soap
•
Check the density
of the antifreeze (if any)
• •
Check the operation
of the flow switches
•
Check the operation
of the solenoid valve
• •