Installation and Commissioning Guide
Classic 2 Outdoor Units
Installation and Commissioning Guide - Classic 2 Split Ducted Outdoor Unit
Doc. No.0525-073 Ver. 8 210414
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20. Maintenance
Maintenance Procedures
This section describes the procedures that must be performed as a part of normal maintenance program. Regular
servicing of equipment by licensed technician is highly recommended. Regular servicing of your unit helps in maintaining
its optimum performance and reliability.
The checklist and service periods provided on this manual are guides only,
as some sites may require more frequent servicing.
Always disconnect electrical power to the unit before performing
these procedures. It is always a safe practice to observe all safety warnings and cautions when conducting maintenance
tasks.
DANGER
Live Electrical Connections !
It may be necessary to work with live electrical components on certain maintenance tasks. Only licensed electricians and
qualified technicians are allowed to perform these tasks.
Beware of Rotating Fan Blades !
Always make sure that all power supply, to the Outdoor Fans are turn Off and isolated.
Observe WH&S safety procedures, do not wear loose clothing and any jewellery when working near the fans.
Wear PPE whenever performing any maintenance procedures.
Observe all necessary procedures when working on a confined space.
WARNING
Hazardous Voltage !
Always make sure that all power supply, including remote controls, are disconnected before performing maintenance.
Observe proper LOCK-OUT/TAG-OUT procedures to ensure that power cannot be inadvertently energised. Failure to
disconnect power before maintenance procedures can result in serious injury and/or death.
EC Motors are fitted with high power capacitors and can have dangerous residual voltages at motor terminals after power has
been isolated. Wait at least 5 minutes after power isolation and test for any residual voltage before beginning service work.
Annual Maintenance Checklists
•
Perform general maintenance inspections.
•
Perform scheduled start-up checks.
•
Leak test refrigerant circuits.
•
Inspect contacts of all contactors and relays. Replace all worn contacts as required.
•
Inspect, clean and tighten all electrical connections.
•
Check fans for balanced operation. Make sure that there are no loose screws / bolts, no fan blades interference and no
damage to the fans and guards.
•
Inspect the air filters, clean or replace as required.
•
Clean and repaint any corroded panel section.
•
Ensure no blockage of airflow through variable speed drive.
