Summary of Contents for Aira HCV
- Page 1 Installation, Startup, Operation, Service & Maintenance Manual HCV & HCVR Evaporative Cooler / Heater...
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Page 2: Table Of Contents
Burners do not come on when pilot flame is alight and room thermostat is ‘Made’.... 21 Unit overheats and locks out limit switch ..............22 HCV & HCVR Evaporative Cooling & Gas Heating Page 2 of 26... - Page 3 Heating not delivering proper amount of heat .............. 21 Flame flash back and burning at orifices..............21 Delayed or rough ignition ..................21 COMMISSIONING REPORT ......................23 WARRANTY TERMS AND INFORMATION ................... 24 HCV & HCVR Evaporative Cooling & Gas Heating Page 3 of 26...
- Page 4 Spray aerosols in the vicinity of this appliance while it is in operation. This AIRA unit must be installed in accordance with these instructions, local gas fitting regulations, municipal building codes, electrical wiring regulations, Australian Standard AS/NZS 5601 Gas Installations and any other relevant statutory requirements.
- Page 5 Is there a system which prevents employees from working on or in roofs if they are unwell or under the influence of drugs or alcohol? Are there any special conditions to consider i.e. excessive roof pitch, limited ground area, fragile roof, electrical power line HCV & HCVR Evaporative Cooling & Gas Heating Page 5 of 26...
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Page 6: General Information
As the AIRA/HCV/R is indirectly fired the flue gasses must be flued to the atmosphere. The flues must be clear of any air intakes, eaves etc. as per Australian gas regulations. The efficiency of a heat exchanger unit is approximately 80%. -
Page 7: Unit Configurations / Components
Stand Pulley & Pulley Return air HCV (Rear return) Fresh Air Louvre Inlet Thermostat Outlet Thermostat Control Box Supply Air Damper Motor Gas Valve Inlet Modulating Gas Valve HCV & HCVR Evaporative Cooling & Gas Heating Page 7 of 26... -
Page 8: Operating Instructions
The switch panel consists of five individually marker rocker switches and a warning lamp. The switch panel is specially designed for use with HCV units, and gives a selection range of ‘OFF, LOW VENT, HIGH VENT, LOW COOL, HIGH COOL and HEAT.’ The switch marked ‘PRESS’ is used to reset the appliance when the red warning light is alight. -
Page 9: General Operation
ETURN ODELS The HCVR Return Air Models are designed to allow full fresh air on cooling as per standard HCV, but then allow economical return air heating during the heating mode. This is achieved by motorized dampers automatically closing off the cooling fresh air section and opening a motorised return air heat damper at the heating section of unit. -
Page 10: Installation Instructions
NOTE: Base panel lifting frames with hooks or eye holes are standard on all sizes of HCV unit. Consult local building codes for any special requirements. For example: water supply, gas supply, electrical supply and building structural computations. -
Page 11: Flue
Mains supply n) Thermostat wiring o) Selector switch wiring p) Lockout light wiring q) Remote reset button wiring HCV & HCVR Evaporative Cooling & Gas Heating Page 11 of 26... -
Page 12: Water Supply
Before connecting the supply pipe flush it of any swarf or debris that may cause the float valve to leak. NOTE: In areas where water pipes freeze, provisions will be needed to drain the water piping to prevent damage HCV & HCVR Evaporative Cooling & Gas Heating Page 12 of 26... -
Page 13: Dump Valve (Optional)
Drain must be lower than base of pad assembly. Note: Refer to local regulations to ensure discharge of drain / overflow water is in accordance with statutory requirements. HCV & HCVR Evaporative Cooling & Gas Heating Page 13 of 26... -
Page 14: Roof Stands
NOTE: On the HCV 12 roof stand it is necessary to cross the leg braces on the end. This is achieved by fixing one brace to the inside surface of the leg and end cross member and the other as shown in the diagram in accordance with statutory requirements. -
Page 15: Commissioning
80 on HCV 12, HCV 16. 60 on HCV 22, HCV 26, HCV 35, HCV 40, HCV 45, HCV 50, HCV 60. Discharge rate will vary with fluctuations in power supply, cleanliness of pump strainer and condition of water distributing system. When adjusting water flow, avoid overflowing of pad or starving pads of water. -
Page 16: Heating Section
For natural gas dampers are not fitted ex-factory. For LPG generally leave dampers wide open, but they may be partially closed to stabilise flame if required. HCV & HCVR Evaporative Cooling & Gas Heating Page 16 of 26... -
Page 17: Temperature Control
If temperature rise or air change rate is not specified, set dampers to provided 22°C temperature rise. IMPORTANT: If heater will not operate after carrying out instructions as detailed above contact Aira Pty L HCV & HCVR Evaporative Cooling & Gas Heating... -
Page 18: Unit Service
7. Refit pad frames and start up unit in accordance with operating instructions. 8. Cleaning: The filter pad frames in the HCV cooling section should be periodically, cleaned. At this time the cooler cabinet should be inspected and cleaned. Filter pads should be periodically changed, the frequency being determined by the rapidity with which dirt, alkali and other foreign matter accumulates in the pads to the extent that cooling efficiency is impaired. -
Page 19: Heating Section
2.1. Remove ribbon retaining split pin and carefully pry ribbon from slot. 2.2. Clean ribbon. 2.3. Replace ribbon and pin. 2.4. Replace burner, ensuring that they are properly seated. HCV & HCVR Evaporative Cooling & Gas Heating Page 19 of 26... -
Page 20: Gas Controls
Pump runs but water not circulated or pads dry 1. Pump motor faulty – replace pump 2. Pump strainer basket blocked – Remove, clean and replace 3. Blocked water tubes – remove, clean and replace. HCV & HCVR Evaporative Cooling & Gas Heating Page 20 of 26... -
Page 21: Pilot Flame Goes Out
2. Limit switch defective or stuck in open position. – Bridge across limit switch terminals. If burners light, replace switch. 3. Gas valve defective – Stuck in closed position. Clean or replace gas valve. HCV & HCVR Evaporative Cooling & Gas Heating Page 21 of 26... -
Page 22: Unit Overheats And Locks Out Limit Switch
7. Belt slipping – tighten belt by adjusting motor mount. Replace belt if worn. NOTE: If problem persists after checking through fault finding list, contact AIRA Pty. Ltd. Or your local gas supply authority. HCV & HCVR Evaporative Cooling & Gas Heating... -
Page 23: Commissioning Report
Auto fan switch set at 40 c / 60 c (Honeywell L4064) Campini 60c High limit switches set at 100 c (Honeywell L4064) Campini 85c Fixed no adjustment. HCV & HCVR Evaporative Cooling & Gas Heating Page 23 of 26... -
Page 24: Warranty Terms And Information
Goods, or where repairs have been made or attempted by unauthorised personnel or with non-Aira parts will void this warranty. Further, it is a condition of warranty cover that each item in the Maintenance Schedule in the Owner’s Manual (if it was published with such a Schedule) - Page 25 (c) the payment of the cost of replacing the Goods or of acquiring equivalent goods; or (d) the payment of the cost of having the Goods repaired and subject to the terms and conditions included in this warranty. HCV & HCVR Evaporative Cooling & Gas Heating Page 25 of 26...
- Page 26 BARCODE AND SERIAL NUMBER It is the policy of Seeley International to introduce continual product improvement. Accordingly, specifications are subject to change without notice. Please consult with your dealer to confirm the specifications of the model selected. Rev 2 23012013...
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