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Summary of Contents for SEELEY INTERNATIONAL AIRA GDH
- Page 1 INSTALLATION AND OPERATION Original English Instructions...
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Page 3: Table Of Contents
CONTENTS SAFETY 1.0 Introduction OPERATING INSTRUCTIONS 1.1 General Safety Information 5.0 OPERATING INSTRUCTIONS 1.1.1 Handling the Heater 5.0.1 Startup – Rotary swith units to provide heat 1.1.2 Positioning the Heater 5.0.2 Startup - Rotary switch units to provide ventilation 1.1.3 Combustibles 5.0.3 Startup -Rotary switch units to provide cooling 1.1.4 Wiring Electrical 5.0.4 Shutdown - Rotary switch units providing heat... -
Page 5: Introduction
This book should be retained with the unit or made easily accessible to installation and maintenance personnel. AIRA GDH units are a direct fired heater. AIRA GDH units are produced in 5 different capacities to suit a wide variety of installation requirements and can be paired with AL coolers to provide a combined heating and cooling solution. -
Page 6: Wiring Electrical
1.1.8 Operational Safety AIRA GDH Heaters must not be operated until the unit has been commissioned by qualified persons. The unit should not be operated if any safeguards, panels or controls have been removed, damaged or bi-passed. -
Page 7: Safety Points To Consider
SAFETY 1.1.10 Safety Points to Consider • What is the best and safest access to the roof and/or work areas? • If a worker is alone, who knows they are there and if they get into difficulty, how can they summon help? (Call someone on the ground? Mobile phone? etc.) •... -
Page 8: General Information
Check the appliance to ensure that the GDH unit that has been supplied will operate with the available gas supply, i.e. Natural or LPG gas. 2.3 FACTORY UNIT TEST All AIRA GDH units are given a factory unit test which covers the function test and checks of the safety system including; •... -
Page 9: Technical Specification
GENERAL INFORMATION 2.4 TECHNICAL SPECIFICATION 2.4.1 Unit and Component Identification Specification GDH790 GDH1055 GDH1585 GDH2110 GDH2500 240/1/50 240/1/50 240/1/50 240/1/50 240/1/50 Power Supply Voltage/Phase/HZ (415/3/50 Blower) (415/3/50 Blower) (415/3/50 Blower) (415/3/50 Blower) (415/3/50 Blower) Power Max Power 1.15 1.15 1.15 1.15 1.15 Consumption... -
Page 10: Installation Information
3. Wiring Diagram 4. Valve Train Layout. This information can be requested from Seeley international when ordering the unit. Isolation of the gas and electrical supplies to the units shall be accessible and identifiable at all times. GDH units must be supplied with fresh air only (Return air is not optional). - Page 11 INSTALLATION INFORMATION Figure 2: GDH Units AIRA DIRECT FIRED GAS HEATING INSTALL OPERATION MAINTENANCE MANUAL |...
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Page 12: Installation
INSTALLATION INFORMATION 3.2 INSTALLATION The following recommendations are not intended to supplant or take precedence over relevant official regulations. AIRA GDH units are designed essentially as a roof top or external ground mount unit. 3.2.1 Location This equipment is not designed for long and complex air distribution ductwork and as such the unit should be located as close as practicable to the points of air distribution. -
Page 13: Weight And Location
INSTALLATION INFORMATION 3.2.3 Weight And Location For roof mounting, the building’s roof must be adequately designed to support the unit weight and any service personnel. If in doubt a suitably qualified Civil or Structural Engineer should be engaged to conduct an assessment. The below figures and tables list the weights of the units. -
Page 14: Electrical Connections
3.3.2 User Control Configuration Optionsit There are 2 primary control options for AIRA GDH units, Rotary switch and BMS. Units are specified with either a rotary switch or capability to be wired for BMS interface. Rotary switch units have a Siemens room thermostat supplied... -
Page 15: Blower / Fan Setup
INSTALLATION INFORMATION 3.3.3 Blower / Fan Setup GDH units are supplied with a pressure switch that only allows gas to flow once airflow is detected. The pressure switch is to be set during the commissioning of the unit. Blowers/fan shall be installed in a location in accordance with 3.2.7 Positioning and Securing. 3.4 GAS CONNECTIONS 3.4.1 Gas Supply This unit must be installed in accordance with AS/NZS 5601.1. -
Page 16: Gas Valve
INSTALLATION INFORMATION Pilot pressure adjustment Pilot pressure adjustment Figure 7: Gas Train 3.4.4 Gas Valve The double gas valve supplied with the GDH unit is the same for both LPG and natural gas. The gas valve has a 40mm inlet. Figure 8: Gas Valve... -
Page 17: Standard Operating Pressure Of The Gas Valve
0.78 GDH2500 0.23 Note: Gas pressure outside of the specified range are to be confirmed with Seeley International. Gas pressures will require adjustment on site to ensure that the combustion gases are below the allowable limits. Table 6: Gas Pressure 3.4.6 Setting Gas Valve Pressure... - Page 18 INSTALLATION INFORMATION 1. BASE PLATE AND MOUNTING 2. ROTATIONAL ANGLE SCALES 0º...90º / 90º...0º 3. DIL SWITCHES FOR - SELF ADAPTION - ROTATIONAL MOVEMENT DIRECTION - INVERTED OR NON INVERTED OUTPUT VOLTAGE OPERATING FUNCTION 4. COVER FOR DIL SWITCHES 5. CONNECTING CABLE FOR POWER, CONTROL SIGNAL, AND POSITION INDICATION 6.
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Page 19: Pilot Injector Setup
INSTALLATION INFORMATION 3.4.8 Pilot Injector Setup The pilot mounts to a bracket attached to the side of the burner. The burner with the pilot attached should be in the center of the burner chamber. The Pilot Ignitor, Spark Ignitor and Flame Rod comes as an assembly. Care must be taken when working on the pilot system not to damage the aluminum gas hard line. -
Page 20: Leaving Air Temperature Sensor
INSTALLATION INFORMATION 3.4.9 Leaving Air Temperature Sensor GDH units have a leaving air temperature that comes wound up inside the control box. It is the installers responsibility to run the leaving air temperature sensor 1000mm downstream of the burner. Figure 11: Air Temperature Sensor... -
Page 21: Commissioning Information
COMMISSIONING INFORMATION 4.0 COMMISSIONING Prior to commencement ensure Main Isolator Switch is OFF and correct electrical Lock Out Tag Out (LOTO) procedures are followed. Failure to do so may result in Injury or Death. A commissioning report template is available in Appendix D of this document. AS5601.1 Appendix O provides additional guidelines for commissioning. -
Page 22: Electrical Checks
1. Confirm that the gas valve is set up for type of gas being supplied to the unit. GDH units will have different operation pressures for natural gas and LPG. Refer to the label supplied on the unit. If the gas type does not match the label contact Seeley International. 2. Confirm that main burner is free from obstruction. -
Page 23: Setting The Modulating Valve Motor
COMMISSIONING INFORMATION 4.4.3 Setting the Modulating Valve Motor Valve to motor alignment and limits are factory preset. Site gas pressure may differ to factory requiring modulating motor limit adjustment. The minimum low fire rate shall be within the limits specified in 3.4.6 Standard operating pressure of the gas valve To set the fire rate follow the steps below;... -
Page 24: Setting Controls
COMMISSIONING INFORMATION 4.5 SETTING CONTROLS 4.5.1 Leaving Air Temperature Control GDH units have a leaving air temperature which can be found in the top right-hand corner of the control box. The unit sensor will come from the factory set as 80°C as this is the maximum allowable temperature under AS3814 Section 5.7 Direct fired air heaters and curtains. -
Page 25: General Operation
COMMISSIONING INFORMATION 4.6 GENERAL OPERATION 1. Remove all foreign objects from blower casing and ensure that all access panels are installed and secured. 2. Connect manometers to confirm the main burner and supply pressures. 3. Isolate main gas valve. Deisolate gas and electrical supply to the heater. 4. -
Page 26: Combustion Product Testing
COMMISSIONING INFORMATION 4.7 COMBUSTION PRODUCT TESTING Once the unit operation has been confirmed the combustion products produced are to be tested and recorded. Figure 14: AS3814 Section 5.7.7.1 To ensure the requirements of Clause 5.7.7.1 are met samples of the heated discharge air shall be taken from the discharge duct work, before the first discharge outlet, far enough downstream to ensure that combustion products are uniformly mixed with the heated air. -
Page 27: Operating Instructions
OPERATING INSTRUCTIONS 5.0 OPERATING INSTRUCTIONS 5.0.1 STARTUP – ROTARY SWITH UNITS TO PROVIDE HEAT 1. Set Thermostat to desired temperature. 2. Switch Rotary Switch to HEAT 5.0.2 STARTUP - ROTARY SWITCH UNITS TO PROVIDE VENTILATION 1. Switch Rotary Switch to LOW FAN or HIGH FAN 5.0.3 STARTUP -ROTARY SWITCH UNITS TO PROVIDE COOLING 1. -
Page 28: Operational Flowchart
OPERATING INSTRUCTIONS 5.2 OPERATIONAL FLOWCHART Gas and Reset Unit Rotary Switch is Electrical supplied to the unit Air Pressure Switch Unit Lockout not proven 37 seconds purge Adjust thermo- stat to desired temperature Air Pressure Switch Successful pilot proven Flame Sense detects pilot for 5 seconds Operate... -
Page 29: Unit Maintenance
UNIT MAINTENANCE 6.0 SERVICE AND MAINTENANCE Aira GDH units require electrical and gas fitting knowledge to service the unit. Servicing should be carried out by a qualified Seeley International Service Technician, appointed Aira service agent or appropriately qualified trades persons. If unsure about any servicing or maintenance aspect of the unit, immediately stop work and contact Seeley International for assistance. -
Page 30: Major Service/Component Replacement Process
UNIT MAINTENANCE 6.2 MAJOR SERVICE/COMPONENT REPLACEMENT PROCESS 6.2.1 Electrical Components 6.2.1.1 Electrical Wiring The electrical wiring of the unit should be visually inspected every 6 months and pre-season to ensure that it is free from damage. If visible damage is noted, all damaged wiring should be replaced with reference to the wiring diagrams found in Appendix B. - Page 31 UNIT MAINTENANCE 6.2.2 Gas Components 6.2.2.1 Gas Controls Gas controls and gas valve shall not be dismantled or serviced in the field. If necessary, faulty units should be replaced with reconditioned or new units. Check before re-assembly that gas lines are clean and free from dirt and deposits. After maintenance work has been carried out and the gas burner and gas controls have been re-assembled, check all gas lines for leaks and check that all electrical terminals are secure.
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Page 32: Casing Components
UNIT MAINTENANCE 6.2.3 Casing Components 6.2.3.1 Weatherproof Casing Condition Check the weatherproof casing for signs of damage, rust and leaks. 6.2.3.2 Duct Condition Visually inspect the ductwork connection into the unit for damage. When the unit is operating inspect the ductwork for leaks where visible. -
Page 33: Fault Finding
UNIT MAINTENANCE 6.3 FAULT FINDING Problem Possible Cause Remedy No heat Switched off. Check selector switch is on. Check time switch settings Blown fuse. Check and repair fuse. Loose electrical connection Tighten connections. Faulty burner control. Ensure power to correct terminals. Refer to wiring diagrams. -
Page 34: Appendix
APPENDIX A: AGA TYPE B INFORMATION Each GDH unit will be supplied with the required calculations. This information should be recorded on the unit. If this information is missing contact Seeley International and the installer of the unit. -
Page 35: B: Electrical Information
B: ELECTRICAL INFORMATION B1: Single speed motor rotary B2: Two speed motor rotary AIRA DIRECT FIRED GAS HEATING INSTALL OPERATION MAINTENANCE MANUAL |... -
Page 36: B3: Single Speed Motor Bms
B3: Single speed motor bms BLACK BROWN BLUE Site Name: Site Address: Site Address: DRAWING NO. B4: Two speed motor bms BLACK BROWN BLUE Site Name: Site Address: Site Address: DRAWING NO. -
Page 37: C: Gas Train Information
C: GAS TRAIN INFORMATION Item Number Part Number Description GDH1055 GDH1500 GDH1585 GDH2110 GDH2500 9656202 REDUCER BRASS 1 1/2” -3/4” PV332 FLANGE TO SUIT VGD20.403 PV159 DOUBLE GAS VALVE VDG20.403 PV116 VALVE ACTUATOR ON/OFF L&G PV117 VALVE ACTUATOR REGULATED ON/OFF PN029 NIPPLE GAL HEX 1 1/2”... -
Page 38: D: Commissioning Report
D: COMMISSIONING REPORT Pass = Adjust = A Attention Req. = X Seeley International Model Number Nominal Gas Consumption Unit Details Serial Number Installer Installation Date Site Address Unit Condition Access to the Unit Condition of Casing Unit is Adequately Secured... - Page 39 All Foreign Objects Removed from unit All Access Panels Installed and Secure De-isolate Gas Supply De-isolate Electrical Supply Air Pressure General Operation Pilot Ignition Main Burner Ignition Pilot Pressure Main Burner Pressure Temperature Rise Across Heat Exchanger °C Name: Date: Electrical Commissioners Details License number:...
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Page 40: E: Maintenance
E: MAINTENANCE E1: Maintenance Schedule DESCRIPTION COMPONENT Month 1/7 Month 2/8 Month 3/9 Month 4/10 Month 5/11 Month 6/12 Electrical Incoming Electrical Supply Electrical Wiring Isolator Fitted and Operating Single or 3 Phase Power Test ... -
Page 41: E2: Monthly Maintenance Check
E2: Monthly Maintenance Check Owner Monthly Checklist C=Clean R= Replace Description Component Check For A= Adjust = Check Incoming Electrical Visually inspect incoming electrical supply Electrical Supply and isolation for signs of damage. Incoming Gas Visually inspect incoming gas connection for Supply signs of damage Access to unit... -
Page 42: E3: Maintenance Checklist
E3: Maintenance Checklist Maintenance Check List Unit Type: ______________________ Date of Maintenance: ___________________ C=Clean R= Replace Description Component Check For A= Adjust = Check N/A= Not Required Visually inspect incoming electrical supply and Incoming electrical isolation for signs of damage. If any major upgrades supply have been installed to the site confirm that there is sufficient power for unit operation. - Page 43 Start Up and Run Check that unit operates as expected with no visual, Sequence sound or smell abnormalities. Check that thermostat and wall switch/BMS controls Control Operations operate as expected Operation Check that burner emissions are below that allowable Burner Emissions limit.
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Page 44: F: Warranty Information
F: WARRANTY INFORMATION In this warranty: We or us means Seeley International Pty Ltd (Seeley) ABN 23 054 687 035, and our contact details are set out at the end of this warranty; You means you, the original end-user purchaser of the Goods;... - Page 45 9. The warranties granted in clause 1 and clause 2 cover the costs of parts and labour but you will be responsible for: a. the cost of travel incurred for a Seeley International service agent to get to and from the location of the Goods if the location of the Goods is either: (i) outside the metropolitan areas of the capital cities;...
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Page 46: G: Release Information
G: RELEASE INFORMATION Revision Date Amendment Author Approved 22/03/22 Initial Release D. Wall C. Arnel 12/07/2023 Updated contact details D.Wall C.Arnel... - Page 48 Online Support Portal (AUS/NZ) Scan or Click QR It is the policy of Seeley International to introduce continuous product improvement. Accordingly, specifications are subject to change without notice. Please consult with your dealer to confirm the specifications of the model selected.
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