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Maintenance

HAZARDOUS SERVICE PROCEDURES:

 During installation, testing, servicing and troubleshooting of this product, it may be 

necessary to work with live electrical components and moving mechanical components. Have a qualified technician who 
has been properly trained in handling live electrical components perform these tasks. Failure to follow all electrical safety 
precautions when exposed to live electrical and mechanical components could result in death or serious injury.

Regular maintenance is the best way to avoid untimely and expensive repairs, and it extends the useful life of the equipment.  
Maintenance should only be performed by qualified service personnel familiar with gas heat equipment and local codes and 
requirements.

Maintenance Checklist

Quarterly

Annually

General  Maintenance

Inspect inside of unit for water leaks, foreign material etc.

X

Clean or replace filters with equivalent to those supplied by manufacturer.

X

Check cooling device drain pans and traps for cleanliness and blockage.

X

Check all dampers, linkages and damper actuators and adjust and tighten as required. 

X

Check cooling or heating coils for cleanliness and clean as necessary.

X

Coil Winterization (Autumn)

X

Fan Maintenance

Check all belts.  Tighten or replace as necessary.

X

Check sheave alignment.  Adjust as necessary.

X

Check all bearings and lubricate as necessary.

X

Inspect fan wheel and housing.  Clean as necessary.

X

Electrical Maintenance

Check for loose wire connections in control panel. 

X

X

Check motor amp draw against name plate.

X

Inspect all contactors to ensure they are clean and making good contact.

X

Check all safeties.

X

Gas Heat  Maintenance

Check all gas fittings and valves for gas leaks.

X

Check gas manifold pressure to burner.

X

Check for proper combustion.

X

Check flame sensor signal.  Clean as necessary.

X

Check ignition spark and adjust gap as necessary.

X

Check flame supervisor controller.

X

Inspect gas vent for leakage or obstruction. Clean screens.

X

Inspect furnace condensate line and trap to ensure it is clear.

X

Inspect primary and secondary heat exchanger for cracks or signs of condensation.

X

Perform safety shut-off valve leak test.

X

Inspect and clean burner.

X

WARNING

 

24

AW-I

MAINTENANCE

AW-I - Manual 

  |   

priceindustries.com

Summary of Contents for AW-I Series

Page 1: ...MANUAL INSTALLATION v200 Issue Date 09 07 18 2018 Price Industries Limited All rights reserved AW I Gas Fired Make Up Air Series...

Page 2: ...do not use any phone in your building Leave building immediately Immediately call your gas supplier from a phone remote from the building Follow the gas supplier s instructions If you cannot reach yo...

Page 3: ...I Z223 1 NFPA 54 or the Natural Gas and Propane Installation Code CSA B149 1 In addition to this manual start up and commissioning videos are available at www priceindustries com Additional informatio...

Page 4: ...during shipping rigging and installation Upon receiving the unit check that all items have been delivered by comparing the Bill of Lading to the equipment received If anything is missing or damaged n...

Page 5: ...minimum NO ACCESS BACK 20 50 cm minimum 24 60 cm recommended ACCESS SIDE 30 75 cm NO ACCESS SIDES 6 15 cm minimum 24 60 cm recommended CONTROL CABINET 36 1 m minimum 48 1 3 m recommended FLUE LOCATION...

Page 6: ...t done problems could arise with the seal of the unit to the curb Check diagonal dimensions prior to securing the curb to ensure that dimensional integrity has been maintained during shipping Shim the...

Page 7: ...the provisions on the base Trying to pull sections together from the cabinet walls or roof will damage the cabinet and void the warranty Refer to Appendix A Figure 5 Where sections join together a fl...

Page 8: ...ings shall be accessible when the appliance is in service and shall be of such a size that smoke or light may observed inside the casing to indicate the presence of leaks in the heating element The ac...

Page 9: ...al Gas and Propane Installation Guide B149 1 The unit must be installed in a location with adequate clearances to provide sufficient combustion air space service inspection and clearance from combusti...

Page 10: ...e securely supported by noncombustible hangers suitable for the weight at a minimum of 36 1m 10 When a vent penetrates a floor or ceiling and is not running through the fire rated shaft a fire stop an...

Page 11: ...codes with the National Electrical Code ANSI NFPA 70 and or the Canadian Electrical Code CSA C22 1 if an external electrical source is utilized 3 Refer to the unit submittal drawing to determine the...

Page 12: ...y of the original wires need to be replaced they must be replaced with type TEW 105 or equivalent except where noted 9 On units with three phase power supplies make sure that motor rotation is correct...

Page 13: ...lent to factory installed wiring and that voltage drop does not exceed 10 percent An optional duct mounted discharge air temperature sensor may be shipped loose for field installation 1 The sensor str...

Page 14: ...emote wiring is equivalent to factory installed wiring and that voltage drop does not exceed 10 percent Where possible the low limit temperature sensor is factory mounted Some unit configurations requ...

Page 15: ...w safety warning exactly could result in serious injury death or property damage Be sure to read and understand the installation operation and service instructions in this manual Improper installation...

Page 16: ...piping to the burner determine that the unit has been designed for use with the gas to which it is to be connected DO NOT attempt to convert the unit from the fuel specified on the rating to use with...

Page 17: ...damage the unit and the building Damage from improper freeze protection will void the warranty Some units may include hot water and or chilled water coils Multiple coils may be stacked in the same ra...

Page 18: ...dical wash down of the inside of the unit It is not recommended to trap these drain connections While it will not damage the unit the traps would need to be constantly primed to provide a seal The fol...

Page 19: ...ment 1 De energize the control system 2 Close the upstream manual gas valve 3 Connect a 6mm tube to the outlet pressure tap on the safety shut off valve 4 Immerse the opposite end of the 6mm tube cut...

Page 20: ...Electrical Connections Confirm that main electrical supply matches the name plate requirements Inspect control cabinets and tighten any loose connections Provide disconnect if one is not factory supp...

Page 21: ...serious injury In addition to the information contained in this manual videos are available for start up of this model at www priceindustries com Before Start Up Prior to starting the unit and with t...

Page 22: ...amp draw and compare it to the name pate rating If amp draw is too high correct the air flow and or duct static pressure drop to reduce amp draw If the fan speed is adjusted make sure not to exceed t...

Page 23: ...ed This will allow gas to flow to the pilot valve but not the main burner 9 Select winter mode on the unit changeover switch This will enable the gas heat 10 Adjust the thermostat or other controller...

Page 24: ...onnect open disconnect the neutral wire to the supply fan contactor coil This will disable the supply fan 2 Remove the supply air duct sensor form the duct so the controller cannot detect heat in the...

Page 25: ...once the damper end switch makes the supply fan starts and runs continuously The burner modulates to maintain the discharge air temperature set point adjustable as set on the remote panel mounted Hone...

Page 26: ...ll dampers linkages and damper actuators and adjust and tighten as required X Check cooling or heating coils for cleanliness and clean as necessary X Coil Winterization Autumn X Fan Maintenance Check...

Page 27: ...rm of freeze protection for water coils is required Coils can be drained and blown out with compressed air to ensure no water remains Alternatively some form of antifreeze rated for the expected ambie...

Page 28: ...ct and fusing properly sized Are remote sensors and controls installed Yes No N A Is cooling device condensate trapped Yes No N A Is gas piping installed correctly Yes No N A FAN START UP Do fans rota...

Page 29: ...n correct Yes No N A Main gas isolation valve correct Yes No N A COMBUSTION GAS TEST RESULTS High Fire Medium Fire Low Fire CO ppm CO2 O2 Manifold Pressure in W C Exhaust Temperature C COMMENTS Signat...

Page 30: ...lease describe the issue Were there any refrigeration system issues Yes No N A Please describe the issue Were the schematics manuals labels etc useful Yes No N A How could we make them better ADDITION...

Page 31: ...er warranty by others will only be accepted if prior written approval is given by Price d THE WARRANTIES AND LIABILITIES SET FORTH IN THE PRIOR PARAGRAPHS ARE THE ONLY WARRANTIES OR LIABILITIES OF PRI...

Page 32: ...nly to be used on the base frame as needed Factory Supplied Material Neoprene gasket Roof caps Fasteners Instructions These instructions apply to both vertically and horizontally split units All joini...

Page 33: ...ire roof curb prior to placing the subsequent sections This will help with pulling the sections together 5 Move the second section into place on the roof curb as close as possible but no more than 2 f...

Page 34: ...wly and evenly pull Section 2 towards Section 1 from the base Figure 4 Once the base is tight verify that the gasket around the walls and roof splits is still in place and has not been damaged during...

Page 35: ...oof cap to cover the joint shown in Figure 6 10 Repeat steps 1 through 9 for all sections of the split air handler unit until all sections are joined 11 Install all loose exterior features which may i...

Page 36: ...the corresponding labeled terminals 13 All low voltage control wiring such as actuators sensors etc is disconnected at the air handler unit splits Spade connectors or junction boxes containing termina...

Page 37: ...35 AW I NOTES priceindustries com AW I Manual...

Page 38: ...36 AW I NOTES AW I Manual priceindustries com...

Page 39: ...37 AW I NOTES priceindustries com AW I Manual...

Page 40: ...s document contains the most current product information as of this printing For the most up to date product information please go to priceindustries com 2018 Price Industries Limited All rights reser...

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