IOM SYSCW AR R513A (IOM CWAR 02 N 1GB/12.21)

English
28 SYSCW-AR R513A
18. MAINTENANCE
Depending on actual operational constraints and regulatory changes, the installer might recommend
increased maintenance operations and more frequent inspections.
Maintenance in accordance with our instructions will prolong the service life of your SYSCW-AR :
² Better refrigeration performance
² Reduced power consumption
² Accidental component breakage prevention
² Prevention of heavy, late, and expensive maintenance work
² Environment protection
The user is responsible for ensuring that the unit is in perfect working order and that the technical
installation and minimum maintenance operations have been performed by a qualied technician
in accordance with the procedures described in this manual.
Caution
18.1. MAINTENANCE PROCEDURES
18.1.1. GENERAL
These units have been designed for minimum maintenance through the use of permanently lubricated
components. However, there are operational maintenance requirements that require regular attention to
ensure optimum performance.
Maintenance must be performed by appropriately experienced personnel only.
WARNING : Isolate unit from power supply before working on unit.
On commissioning, a record of voltages, current draw and temperature variances should be made. Thereafter,
on an annual basis further measurements can be compared to these initial values and will be useful for
giving an overall indication for the equipment’s general condition.
Carry out a visual inspection of the complete installation in service.
Check the general cleanness of the installation, and check if the condensate evacuations is not blocked.
Check the condition of the condensate tray by pulling it out of the casing.
18.1.2. GENERAL INSPECTION
Check that the main power supply cable is not damaged or altered in such a way as to affect the insulation.
The contact surfaces of relays and contactors should be inspected regularly by an electrician and replaced as
judged necessary. On these occasions the control box should be blown out with compressed air to remove
any accumulation of dust or other contaminants.
Check the earth grounding connection.
Clean the heat exchanger using a special product for aluminium-copper heat exchangers, and rinse with
water. Do not use hot water or steam, as this could cause the pressure of the refrigerant to rise.
Check that the surface of the aluminium ns of the heat exchanger is not damaged by impacts or scratches,
and clean with an appropriate tool if necessary.
The refrigeration system is hermetically sealed and should require no regular maintenance. However, it is
recommended to leak test the refrigerant system and check the general operating conditions and control
devices on a regular basis. The operating pressures should be checked particularly as they are an excellent
guide for maintenance. Pressure checks are performed by means of the LP and HP pressures take-offs on
the fascia. The gas contained in the pressure gauge hoses must be re-injected as the gas charge is very low.
18.1.3. REFRIGERATION CIRCUIT
18.1.4. ELECTRICAL SECTION