Installation and Commissioning Guide - Package Ducted Variable Capacity Commercial
Doc. Part No. 0525-076 Ver. 3 210414
Installation and Commissioning Guide
Variable Capacity Commercial
6
Do not open the system to the atmosphere for service work until refrigerant is fully removed and/or recovered. Perform
refrigeration system evacuation, prior to charging, in accordance with AIRAH / IRHACE Refrigerant handling code of
practice.
Let the unit stand for 1 hour and with the vacuum not rising above 500 microns. A rise above 500 microns indicates a leak
from the system and a leak test is required to locate and repair any leak.
CAUTION
A leak test is always required on any repaired section of the refrigeration system.
Charge refrigerant into the system only after the equipment does not leak or contain moisture. Ensure that R-410A is
only charged in liquid form. Take into consideration the correct amount of refrigerant charge specified for the system
to ensure efficient unit operations. When charging is complete, reclaim refrigerant from charging lines into an approved
refrigerant container. Seal all used refrigerant containers with approved closure devices to prevent unused refrigerant
from escaping to the atmosphere. Take extra care to maintain all service equipment directly supporting refrigerant
service work such as gauges, hoses, vacuum pumps and recycling equipment.
INSTALLATION PREPARATION (Pre-Installation considerations)
The following items must be considered before beginning the unit installation:
• Verify the unit capacities and ratings with the unit nameplate
• Make certain the floor or foundation is level, solid and have sufficient structural strength to support the unit and
accessories weight.
• Allow minimum recommended clearances for periodic maintenance and service access.
• Allow sufficient space above the unit for the outdoor air discharge. Condenser air inlet, located on the coil side of the
unit, requires sufficient airflow clearance for the optimum unit performance.
• Note the conditioned supply air and return air location. Ensure sufficient spaces are allocated for these purposes.
• Refer connection and location of condensate drain in the unit drawing and dimensions section of this manual.
• Wiring connections must be in accordance with the wiring diagram provided with the unit.
• Make sure all wirings are in accordance with local electricity authority regulations and standards.
• Do not install the unit close to an area where there is a danger of fire due to volatile, explosive, flammable and/or
hazardous materials.
• Ensure that spaces around the unit are free from any obstructions for optimum unit performance.
• Installer to ensure correct size/type that main circuit breaker and cable is installed in unit sub-mains to protect the
sub-mains and unit wiring.
• Installer to ensure correctly rated residual current device (RCD) is installed as per with the latest edition of the AS/NZS
3000 (also known as Australian Wiring Rules).
• Secure the power cords and control cables that goes in/out the unit. Use the cable ties provided in the control box.
NOTES
• This unit is supplied with factory charged R-410A refrigerant.
• Be aware of all the relevant regulations concerning the handling of refrigerant.
