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Air Cooled Packaged Units - Reverse Cycle - R32
CONTENTS
1. GENERAL ..............................................................................1
2. INSTALLATION ......................................................................2
3. REFRIGERATION SYSTEM ...................................................2
4. WIRING ..................................................................................3
5. ECONOMISER .......................................................................3
6. START-UP PROCEDURE ......................................................4
7. OPERATION ...........................................................................5
8. MAINTENANCE .....................................................................5
9. TROUBLESHOOTING ...........................................................6
10. WARRANTY .........................................................................6
APPENDIX I : UC8 PROTECTION FUNCTIONS .......................7
APPENDIX II: AIR HANDLING PERFORMANCE ....................9
COMMISSIONING CHECK LIST .............................................10
OPA 970RLTB1FPQ(-Z) (Econex)
Installation & Maintenance
Page
1. GENERAL
Temperzone OPA Outdoor Air Cooled Packaged units.
Follow these instructions to ensure the optimum performance,
reliability and durability.
Units must be installed in accordance with all national and
regional regulations and bylaws. National Health and Safety
regulations must be followed to avoid personal injuries.
The appropriate local permits must be acquired and
adhered to.
Local regulations on maximum boundary noise need to
be considered when positioning the unit.
The accompanying 'R32 Handling Ducted Packaged Units'
pamphlet forms part of these Installation & Maintenance
instructions.
! WARNING
These units use R32 refrigerant (Class A2L) which is mildly
flammable.
The system shall be installed, operated and stored in a well
ventilated space. If the refrigerant gas comes into contact with
fire, a poisonous gas may occur. Be aware that R32 does not
contain an odour.
If indoors, the appliance shall be stored in a room away from
continuously operating sources known to cause ignition of R32
refrigerant (for example an operating gas appliance or operating
electric heater)
2. INSTALLATION
2.1 Clearances & Service Access
Refer to Specification Sheet supplied for minimum
clearances. If multiple units are to be placed side-by-side
then allow at least 2m between coil faces.
2.2 Mounting
The unit should be fastened to a firm flat horizontal base
using the holes supplied in the mounting channels. When
the unit is being installed on a roof it is recommended that
the unit is installed on a substantial structure with vibration
isolating pads or mounts. If placed on the ground or
concrete pad, use rubber pads or mounts to give 20mm min.
ground clearance.
Flexible duct connections are recommended between the
supply and return ducts and the unit.
Unit is shipped with plastic wedges installed under the
compressors. Ensure these wedges are removed from
the compressor feet prior to starting the unit
(not required for operation).
- 1 -
003-000-301 08/23
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Summary of Contents for TemperZone OPA 970RLTB1FPQ
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Page 1: Table Of Contents
Installation & Maintenance CONTENTS 1. GENERAL Page 1. GENERAL ................1 Temperzone OPA Outdoor Air Cooled Packaged units. 2. INSTALLATION ..............2 Follow these instructions to ensure the optimum performance, reliability and durability. 3. REFRIGERATION SYSTEM ...........2 Units must be installed in accordance with all national and 4. -
Page 2: General
Standard reverse cycle units are suitable for use with 2.3 Economiser/Fresh Air Cowl Option thermostats and controls with manual heating/cooling The Economiser cowl is supplied separately and must be selection or automatic change-over. fitted to the unit – usually after the unit is lifted in to place. Screws and pre-drilled holes are provided. -
Page 3: Economiser
• Power up the unit but leave the compressors off. For additional information, refer to the UC8 Controller label • Hold down the SW3 pushbutton on the UC8 circuit board on the unit or www.temperzone.biz for operation & fault until the display shows: diagnostics information; model search ‘UC8’. -
Page 4: Start-Up Procedure
Air Balance the building's ducting system using Using TZT-100 option an experienced HVAC technician. This will require If the unit is controlled with a temperzone TZT-100 wall temporary isolation of the compressors using the thermostat then adjustments are made as follows: internal circiuit breakers, and running the fan only. -
Page 5: Operation
• Min. mode change-over time 4. Check system operating pressures via each UC8 10 minutes (cooling to heating or controller or using a Temperzone Wifi Service Utility vice-versa) (WSU); pn 201-000-700; refer Appendix I. 7.2 Variable Capacity 8.2 Six Monthly... -
Page 6: Troubleshooting
• Location of wall controller or remote temperature sensor is incorrect. 4. Check system operating pressures via each UC8 controller or using a Temperzone Wifi Service Utility • Check for air leaks in supply or return air ductwork. (WSU); refer Appendix I. -
Page 7: Appendix Iuc8 Protection Functions
For more information about protection functions and minimum capacity (40%) to 10K at nominal capacity (100%). troubleshooting, refer to document “UC8 Troubleshooting”, available at www.temperzone.biz website; model search This protection function is disabled when a compressor ‘UC8’. operates at less than standard mode minimum capacity (<... - Page 8 Lock-out Each protection function has a trip counter. A trip counter is reset to 0 whenever the compressor run request is removed. Any trip that has occurred more than 12 hours ago is removed from the trip count. For some protection functions, when the trip counter reaches value 3 (i.e.
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Page 9: Appendix Ii: Air Handling Performance
AIR HANDLING PERFORMANCE Note: Airflows are for a dry coil. Refer Airflow Selection below. As filters thickness varies, the fan air flows given are for units installed without filters. No allowance for Reheat coil option. OPA 970RLTB1FPQ l/s - Pa 2000 3000... - Page 10 APPENDIX III CONNECTION WIRING PATHS IMPORTANT! Don’t run low and high voltage wiring in parallel; separate where possible. 400V 3 phase power supply wiring BMS comm’s wire, conduit, from mains via up to Ø25 (option). isolation switch, up to Ø50. DO NOT secure to refrigeration Anchor rails are provided.
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Page 11: Commissioning Check List
De-ice Sensor temperature: ICEt °C °C Compressor 4 amps : Required Capacity: Expansion Valve 1: Expansion Valve 2: NOTE: This document to be kept with the unit. Failure to provide this completed page on request by Temperzone may affect unit warranty. - Page 12 Phone: (07) 3308 8333 Email: chch@temperzone.com Email: qldsales@temperzone.com.au Perth Phone: (08) 6399 5900 Email: reception@airskill.com.au AS/NZS ISO 9001: 2015 Materials and specifications are subject to change without notice due to the manufacturer’s ongoing research and development programme. © temperzone ltd 2023 08/23...
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