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Manafacture: Gas-Fired Products File size: 1.33 mb File name: Language of manual:

B) Check for loose or broken motor lead wire. C) Check to see that blower wheel turns freely and is not rubbing housing. Blower wheel may have worked loose from shaft and jammed against housing. D) Check for blower wheel damage; replace if necessary. If no damage, readjust blower wheel on shaft & retlghten set screw. E) If all above does not correct, replace motor. 31) CLEANING AND ANNUAL MAINTENANCE_ This heater must be cleaned and serviced annually before the start of each heating season and at any time excessive accumulation of dust and dirt is observed. Maximum heating efficiency and clean combustion will be maintained by keeping the heater clean. To clean the heater, follow these instructions: 1) Turn off all electrical and gas supply to the heater. 2) Open the control box access panel. 3) Clean the access panel, the inside of the control box, the emitter tube and the reflector panels. (Dirty reflectors will reduce output.) 4) Visually inspect the spark electrode. Remove any foreign objects from electrode tip. Set the spark gap to the proper value of 3/16”. ICAUTION: The ceramic portion of the electrode is very fragile so any cleaning or adjustments must be done with care. 5) Disconnect the vent stack and remove any foreign material that may have collected on the blower wheel. Make sure the blower wheel is clean. A dirty wheel can reduce the volume of air pulled and can result in premature tube failure. 32) REPLACING PARTS Ensure that at all times when parts are being replaced, both gas and electrical supplies are disconnected. Various parts are available from the factory for replacement by a licensed person. Refer to the Replacement Parts Guide in Section 34 for all replacement parts. 33) INSTALLATION DATA Date of Installation: Serial No. # of Heaters in System: Model: LTS or LTU N - Natural Gas L - Propane Gas 34) REPLACEMENT PARTS GUIDE DRAFT INDUCER COMPONENTS MODELS: LTS40-175 and LTU80-175 ITEM NO. PART NO. DESCRIPTION l 3 4 5 6 7 8 9 10 11 13 14 15 16 17 IS 19 20 21 22 23 24 25 26 27 28 29-38 39 40 42917010 03723020 03977120 42739010 42740000 42742000 42744000 30347000 03868010 30186072 30267000 30279000 30281000 30330000 42709000 30220010 02175040 42886000 42909000 42910000 42911000 42923000 03721000 03979000 43221000 42874000 Draft Inducer Assembly Blower Wheel Plastic Vacuum Air Tube, 12” long Blower Housing Sub-Assembly Motor Plate Sensing Tube Bracket Sensing Tube, Draft Inducer Motor Spacer (4 per motor) 3/8” Connector Air Switch Kit, set @ 0.37” W.C., #824 %” Knockout Plug Transformer, AT120B1051 Terminal Block, EK-204 Terminal Block, TFB-323 Terminal Block Shield Monitoring Light, Green Strain Relief Sensing Tube, Air Switch Junction Box Junction Box Cover Junction Box Support Bracket SJO Cable Assembly Motor, JB1R061N Braided Fiber Glass Sleeving, 4” Lg Draft Inducer Gasket Connection Wire Diagram (not shown) NOTES: 1) Screws, Nuts and Wash...

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