Installation and Commissioning Guide - Split Ducted ESP Digital Units
Doc. No.0525-077 Ver. 2 200129
Installation and Commissioning Guide
Split Ducted ESP Digital
34
The above graph represents the approximate time taken for the fan to achieve its set speed upon selection.
In ESP mode the time will vary depending on the duct system and the number of zones open or closed at time of
selection. Typically it will take approximately 3 minutes to achieve set speed from all zones open to 1 zone open.
16. 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 turned 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 (LOTO) 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 and Inverter Drives 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.
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