J&E Hall JEHSD-0600-M-3, Technical Manual

Page: 29 / 40

Issue: 01.05.2017 Page 29
Service & Maintenance
The condensing units are designed to give long life operation with minimum maintenance. However, they should be
routinely checked and the following service schedule is recommended under normal circumstances:
The removal of the top, side and front panels ensures that all parts are accessible.
1. Compressor – Inspect at regular intervals
•
Check for refrigerant leaks on all joints and fittings.
•
Check mountings for tightness and wear.
•
Check operation of crankcase heater.
•
Check electrical connections.
•
Ensure that no abnormal noise or vibration is detected during test run.
•
Check the compressor oil levels and top up if required. The oil level should be visible at least ½ way up the oil
sight glass.
Compressor Model
Applicable Refrigerant ZBD45KQE-TFD
R404A / R407A / R407F / R448A / R449A
Polyolester - Emkarate RL 32 3-MAF
Recommended Oils
Polyolester - Mobil EAL Arctic 22 CC
2.
Condenser Fan Motor & Blade – Clean and inspect at regular intervals
•
Check for abnormal noise, vibration and fan imbalance.
•
Ensure that the fan motor is clean and spins freely.
•
Check that the condenser fan blade is clean and free from restriction and damage/imbalance.
•
Note: The Fan Motor is pre-lubricated and factory sealed so no maintenance is necessary.
3. Condenser Coil – Clean and inspect at regular intervals.
•
Check and remove the dirt and debris between the fins using a soft brush, low pressure compressed air/inert gas
or a low pressure sprayer utilizing clean water. A suitable chemical coil cleaner may be used as required.
Accumulations of dirt on the condenser face can be removed with a soft bristle hand brush. When using liquids,
ensure electrical items are isolated and correctly protected.
•
DO NOT USE HIGH PRESSURE JET WASHERS.
•
Check and remove any obstacles which may hinder the airflow through the condenser coil.
Important Note:
Warning! – Disconnect the mains electrical supply before servicing or
opening the unit.