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Installation and Commissioning Guide
Hercules Package Unit
Installation and Commissioning Guide - Hercules Package Unit
Doc. No.0525-021
Ver. 21 221110
12. Electrical Power Supply Connection
DANGER
Hazardous Voltage !
• During installation of your air conditioning unit, it may be necessary to work in close proximity to live electricity.
Always make sure that all power supply, including remote controls, are disconnected before performing installation
and commissioning tasks. 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 or death.
• Follow all electrical safety precautions when exposed to live electrical components.
• Only qualifi ed technicians are allowed to work on electrical circuits.
• All electrical wiring must be in accordance with the relevant electrical authority rules and regulations.
SUB-MAINS
CIRCUIT BREAKER
(Field Supplied by Installer)
THREE PHASE MAINS WIRING
(400 VAC 50Hz Neutral)
EXTRA LOW VOLTAGE DATA CONTROL WIRING
LEGEND:
DATA CONTROL
WIRING TO UNIT
CONTROL
INTERFACE
SUB-MAIN
TO UNIT
Electrical Wiring Requirement
Wiring Diagram
The wiring diagrams specifi c for your air conditioning system are located on the inside panel of the control and power
access doors. Always refer all wiring installation, servicing and troubleshooting of this equipment to this diagram to ensure
correct electrical connections are satisfi ed.
Supply Power Requirements and Procedures
It is the installer’s responsibility to provide power supply wiring to the sub-mains isolator. Wiring should conform to the
current electrical authority regulations and all wiring connections to be as per electrical diagram provided with the unit.
•
Confi rm that the power supply available is compatible with the unit nameplate ratings. The supply power must be within
10% of the rated voltage.
•
Protect electrical service from over current and short circuit conditions in accordance with AS/NZS 3000 “Australian /
New Zealand Wiring Rules”. Size protection devices according to the electrical data of the unit.
•
Complete the unit power supply wiring onto the sub-main isolator.
•
Provide proper unit earthing in accordance with local and national codes.
