Maintenance; General Requirements; Planned Maintenance; Scheduled Maintenance - Johnson Controls CWP Manual De Instalación Y Mantenimiento

Maintenance

9 MAINTENANCE
Carefully read the "Safety" section of this manual
before carrying out any maintenance operations.
Do not discharge the refrigerant into the at-
mosphere while the refrigeration circuits
are being drained. Use appropriate recov-
ery equipment.
When the recovered refrigerant cannot be
re-used, return it to the manufacturer.
Do not throw away the waste oil of the
compressor, because it contains refrigerant
in solution.
The waste oil must be returned to the manu-
facturer.
Unless otherwise specified, the operations described
below may be carried out only by a trained mainte-
nance operator.

9.1 General requirements

telco-Clima units have been designed for continuous
operation, providing that they are subjected to regu-
lar maintenance, within the limits specified in this
manual. Each unit must be serviced according to the
programme by the User/Customer, and must be in-
spected at regular intervals by the personnel of one
of Itelco-Clima's authorised Service Centers.
It is the responsibility of the User to meet these main-
tenance requirements and/or to enter into an agree-
ment with one of Itelco-Clima's Service Centers, so
as to properly safeguard the operation of the appli-
ance.
During the warranty period, in case of damage or
failures caused by improper maintenance, Itelco-Cli-
ma will not refund the costs incurred to repair the ap-
pliance 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 mod-
ifications or supplementary accessories.

9.2 Planned maintenance

Maintenance inspections must be carried out accord-
ing 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 inspec-
tions. If you are in doubt, please contact Itelco-Clima
Service Centre.
Page 34

Scheduled Maintenance

Operations
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
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