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INSTALLATION AND OPERATING MANUAL
Nortek Global HVAC (UK) Limited equipment must be installed and maintained in accordance with the requirements of the Codes of Practice or ruies in force. All
Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operation, and maintenance
Gas-fired appliances are not designed for use in hazourdous atmospheres containing flammable vapors or combustible dust, in atmospheres containing chlorinated
Should overheating occur, or the gas supply fail to shut off, shut off the manual gas valve to the appliance before shutting off the electrical supply.
Do not use this appliance if any part has been immersed in water. Immediately call a qualified service technician to inspect the appliance and replace any gas control
This appliance is not intended for use by persons (including children) with reduced sensory or mental capabilities or lack of experience and knowledge, unless they
have been given supervision or instructions concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they
Manual Part No. D301177 Issue A
®
GAS - FIRED AIR CURTAIN
AB - 2 RANGE
Please read this document carefully before commencing installation, commissioning and/or servicing.
Please read this document carefully before commencing installation, commissioning and/or servicing.
Leave it with the end user/site agent to be placed in their premises technical file after installation.
external wiring MUST comply with the codes of practice or rules in force in the country of situation.
instructions thoroughly before installing or servicing this equipment.
or halogenated hydrocarbons or in applications with airborne silicone substances.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier.
• Evacuate all personnel.
• Do not store or use petrol or other flammable vapours and liquids in the vicinity
WARNING
that hes been immersed in water.
do not play with the appliance.
FOR YOUR SAFETY
What to do if you smell gas:
of this or any other appliance.
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Summary of Contents for Reznor AB-2
- Page 1 ® GAS - FIRED AIR CURTAIN AB - 2 RANGE INSTALLATION AND OPERATING MANUAL Please read this document carefully before commencing installation, commissioning and/or servicing. Please read this document carefully before commencing installation, commissioning and/or servicing. Leave it with the end user/site agent to be placed in their premises technical file after installation. WARNING Nortek Global HVAC (UK) Limited equipment must be installed and maintained in accordance with the requirements of the Codes of Practice or ruies in force.
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Page 2: Table Of Contents
Part Replacement (Cont).......................17 Part Replacement (Cont).......................18 Part Replacement (Cont).......................19 Part Replacement (Cont).......................20 Part Replacement (Cont).......................21 Part Replacement (Cont).......................22 Part Replacement (Cont).......................23 Fault Finding.........................24 Fault Finding (Cont)......................25 User Instructions........................26 PAGE B Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 3: General Information
This manual provides detailed information on the installation of Reznor gas fired air curtains. It is essential that these products are installed in accordance with these manufacturers instructions. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 1... -
Page 4: Dimensions
Left side view Top view Figure 1. Dimensions (tol. ± 2mm) Weight Mod. (mm) (mm) (mm) (mm) (mm) (mm) (kg) AB 175-2 1750 1692 AB 225-2 2250 2192 PAGE 2 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 5: Technical Specification
Start current (per fan Constitution WARNING: Model AB175-2 AB225-2 AB350= THIS AIR CURTAIN SHOULD NOT BE INSTALLED WHERE THERE IS A AB400= CORROSIVE ATMOSPHERE. AB450= AB525= AB575= AB625= AB675= Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 3... -
Page 6: Installation Details
The minimum mounting height is 1.8 metres Gap to be kept to a minimum Bottom of air curtain to be level with top of door opening (1.8m minimum) Figure 4. Figure 2. PAGE 4 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 7: Installation Details (Cont)
‘Suspension by means of threaded rods’. The use of fixing brackets to install the air curtains if optional (see section ‘Suspension by means of threaded brackets (option)’. Figure 7. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 5... -
Page 8: Installation Details (Cont)
Nat. gas (G20) Prop. (G31) Mass flow rate of flue 0,03337 0,0332 0,02576 0,0283 gasses (kg/s) Flue gas temp. At flue 189,5 outlet (ºC) Flue pressure positive (Pa) PAGE 6 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 9: Installation Details (Cont)
Installation Details (Cont)... Right Side View Figure 8. Typical Vertcial Flue Arrangement Side View Figure 9. Typical Horizontal Flue Arrangement Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 7... -
Page 10: Installation Details (Cont)
19 of this manual, parts replacement. material, a suitable approved fireproof sleeve should be fitted prior to installing the flue pipe. Wiring Details Figure 10. PAGE 8 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 11: Wiring Details (Cont)
Warning: never attempt to bypass the thermal limit controls as hazardous conditions could result. Figure 11. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 9... -
Page 12: Servicing
Remove the flame probe as described in section 8 and examine for signs of erosion. The probe should be cleaned if necessary using a fine grade emery paper. PAGE 10 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 13: Servicing (Cont)
Internal To gain access first remove the bottom cover as described in section 8 before removing the screws from the inspection cover. Figure 14. Figure 12. Figure 15. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 11... -
Page 14: Servicing (Cont)
The fan(s) can be removed, if necessary, as described in section 8. Note: Following any servicing work it will be necessary to re-commission the air curtain (See section7). PAGE 12 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 15: Commissioning
Test Test Point gas control valve operate. Point The ignition spark ignites the burner and the Figure 16. flame is detected by a flame ionisation rod sensor. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 13... -
Page 16: Commissioning (Cont)
Turn the regulator adjusting screw anticlockwise to decrease gas pressure, or clockwise to increase gas pressure. (See Figure 17) After adjustment replace dust cover. Figure 17. PAGE 14 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 17: Part Replacement
2 retaining screws from the door so that door can be opened (see figure 18 & 19). Figure 20. Figure 18. Figure 21. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 15... -
Page 18: Part Replacement (Cont)
To ease access to the gas valve remove the electric panel by unscrewing the 2 screws at the top of the appliance. The panel can then be hung over the top panel side (see figure 25). PAGE 16 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 19: Part Replacement (Cont)
See fig 27 & 28. Figure 29. Figure 30 shows a gas feeding line with injectors Figure 27. Figure 30. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 17... -
Page 20: Part Replacement (Cont)
Figure 33. Figure 32. Remove now the electrical connections. Remove hereto the protection cap. Then connections can be disconnected. See figure 33 and 34. Figure 34. PAGE 18 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 21: Part Replacement (Cont)
Remove the four screws securing the fan to the unit. Remove the fan/fan box assy taking care not to damage the gasket seal. See figure 38. Figure 36. Figure 38. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 19... -
Page 22: Part Replacement (Cont)
Figure 40. Figure 43. Withdraw flame probe as shown in figure 41 Withdraw spark electrode complete with HT cable as shown in figure 44. Figure 41. Figure 44. PAGE 20 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 23: Part Replacement (Cont)
Remove the 2 retaining screws as shown in figure 47 and remove thermostat. Remove from location slot complete with bracket as shown in figure 50. Figure 47. Figure 50. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 21... -
Page 24: Part Replacement (Cont)
(see fig. 42/43) The plate can now be removed. Remove now the individual fansuele ventilatoren gaan verwijderen. Figure 56. These fans are heavy Figure 53. PAGE 22 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A... -
Page 25: Part Replacement (Cont)
Part Replacement (Cont) Figure 51 shows for clarity a single air distribution fan. Figure 57. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 23... - Page 26 Pressure switch 30 60618 420 Orange lamp 60 61996 Burner 03 400US 1021 White lamp 60 61988 04 Injectors Nat. gas: AB175N-2: 07 25801 290 AB225N-2: 07 25801 340 PAGE 24 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A...
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Page 27: Fault Finding
1. Burner inlet pressure. to operate normally, 2. Burner nozzle pressure. please contact 3. Check live & neutral polarity. the Reznor 4. Check presence of good service department earth. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 25... - Page 28 Single fan unit when cool), test motor. off? 2. Motor wiring. 3. Motor plug / socket. If the fan(s) still fail to operate normally, please contact the Reznor Service Department PAGE 26 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A...
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Page 29: User Instructions
If lockout re-occurs, switch off air curtain and call out a service engineer. Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 27... - Page 30 PAGE 28 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A...
- Page 31 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A PAGE 29...
- Page 32 Nortek Global HVAC is a registered trademark of the Nortek Global HVAC limited. Because of the continuous product innovation, Nortek Global HVAC reserves the right to change product specification without due notice. PAGE 30 Reznor, AB - 2 Gas, GB 2019-08, D301177 Issue A...
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