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Williams 2903511 Installation Instructions And Owner's Manual

Gas direct-vent wall furnace
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MODEL:
Natural Gas
2903512
MODEL:
Propane Gas
2903511
WARNING: Improper installation, adjustment,
alteration, service, or maintenance can cause
injury or property damage. Refer to this
manual. For assistance or additional
information, consult a qualified installer,
service agency or the gas supplier.
WARNING: Installation and repair must be
done by a qualified service person. The
furnace should be inspected before use and at
least annually by a professional service
person.
WARNING: If not installed, operated and
maintained in accordance with the
manufacturer's instructions, this
product could expose you to substances in
fuel or from fuel combustion which can cause
death or serious illness and which are known
to cause cancer, birth defects or other
reproductive harm.
Williams Furnace Co., 250 West Laurel Street, Colton, CA 92324 U.S.A.
Installation Instructions and Owner's Manual
Direct-Vent Wall Furnace
WARNING: If the information in this
manual is not followed exactly; a fire
or explosion may result, causing
property damage, personal injury or
loss of life.
- Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
• Open all windows.
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your building.
• Extinguish any open flame.
• Immediately call your gas supplier
from a neighbor's phone. Follow
the gas supplier's instructions.
• If you cannot reach your gas supplier,
call the fire department.
- Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.

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Summary of Contents for Williams 2903511

  • Page 1 Williams Furnace Co., 250 West Laurel Street, Colton, CA 92324 U.S.A. Installation Instructions and Owner’s Manual Direct-Vent Wall Furnace WARNING: If the information in this manual is not followed exactly;...

  • Page 2: Table Of Contents

    General Information and Technical Data Instructions to Installer ……………………………………………………………………………………………………………………1 Safety and General Warnings ………………………………………………………………………………………………………….. 2 Technical Data …………………………………………………………………………………………………………………………… 3 Installation Wall Installation …... 4 Outside Location for Vent Terminal …... 6 Gas Conversions …... 8 Gas Supply …... 9 Electrical Wiring Diagrams ……... 11 Operating Instructions ……………………..……………………………………………………………..……………………………...

  • Page 3: Safety And General Warnings

    Safety Rules and General Warnings DO NOT OPERATE THIS FURNACE WITHOUT THE FRONT PANEL INSTALLED • Due to high temperatures, the furnace should be located out of traffic and away from combustible materials such as furniture and draperies. • Children and adults should be alerted to the hazards of high surface temperatures and should stay away to avoid burns or clothing ignition.

  • Page 4: Technical Data

    • Learn to recognize the odor of LP Gas. Your local LP Gas Dealer can give you a ”Scratch and Sniff” pamphlet. Use it to find out what the propane odor smells like. If you suspect that your LP Gas has a weak or abnormal odor, call your LP Gas Dealer.

  • Page 5: Installation

    Installation should be done by a QUALIFIED SERVICE TECHNICIAN. The furnace must be located on an outside wall. Wall Installation Minimum clearances from combustible materials: • Furnace to the top surface of carpeting, tile: 2-inches (50 mm) • Furnace to back wall (0” to spacers): 0-inch (0 mm).
  • Page 6 Figure 1 1 = Fixed/Closed 1 = Fixed/Closed A. Clearance above grade, veranda, porch, deck or balcony 12-inches (30 cm) minimum. B. Clearance to window or door that may be opened 12- inches (30 cm) minimum. C. Clearance to permanently closed window (minimum 12- inches (30 cm) recommended to prevent condensation on window.

  • Page 7: Outside Location For Vent Terminal

    Outside Location for Vent Terminal Upon delivery, check to make sure the packaging has not been damaged. 1. Remove the furnace from box/packaging taking care not to damage the paper template to be used to mark the holes for mounting the furnace. 2.
  • Page 8 Figure 4 Figure 6 12. When the inside installation is complete, proceed to the outside location of the aluminium vent cap on the external wall. The vent cap should perfectly match the pipe end. Mark the location of the three holes for the screw anchors. (Figure 7) The flue grid must be vertical.

  • Page 9: Gas Conversions

    Gas Conversions Converting to another gas type must be performed by a qualified service technician. If the type of the gas supplied to the dwelling is not the same type as your furnace (natural or LPG gas), it must be converted. It will be necessary to do the following: 1.

  • Page 10: Gas Supply

    Gas Supply Check all local codes for requirements, especially for the size and type of gas supply line required. On natural gas lines less than 15” (380 mm) long, use 1/2” tube; on longer runs, use 3/4” iron tube or equal. On LP gas lines, consult LP gas supplier. Installing a New Main Gas Shutoff Valve Each appliance should have its own manual gas shutoff valve.
  • Page 11 First Firing of the Furnace Start the furnace following the instructions given in the “Operating Instructions“. The initial pilot lighting may be difficult due to air trapped in the gas lines. During initial firing of the furnace, residual manufacturing grease will bake-out and smoke will occur which is not a health danger.

  • Page 12: Electrical Wiring Diagrams

    Electrical Wiring GAS VALVE 1 (SAFETY SHUTTER) HI-LO FLAME OPERATOR (*) FAN MOTOR (n. 2 MOTORS ON 8001/8002) OVERHEAT THERMOSTAT FAN THERMOSTAT MAINS FUSE – 5X20 size – 4A PRESSURE SWITCH FLAME SENSOR SPARK IGNITER (n. 2 pcs) COMBUSTION BLOWER MOTOR FLAME VIEW LAMP (GREEN LAMP) LOCK-OUT LAMP (RED LAMP) CURRENT TRANSFORMER 120-24 V...

  • Page 13: Operating Instructions

    Before operating the furnace, read carefully all warnings and safety information in this manual. FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, pe onal injury or loss of life. A.
  • Page 14 This appliance has an electronic flame superv ision device. If the flame disappears the gas flow will be automatically shut off and the red lamp will light instead of the green one. The appliance will attempt to relight if you do ONE of the following: T urn off the electric supply to the appliance for approximately 40 seconds and turn it on again;...

  • Page 15: Servicing

    All servicing activities must be carried out by a qualified service technicial or a service agency. The home owner may not service the furnace. The home owner must read this section to be informed of the periodic maintenance and checks the required.

  • Page 16: Annual Maintenance Requirements

    Annual Maintenance Requirements 1. Clean fan blades. 2. Clean air blower. 3. Check and clean silicone red pipes. 4. Check air flow switch. 5. Clean and check exhaust flue pipe and air intake pipe. 6. Check for gas leaks on all connections. 7.

  • Page 17: Programmable Timer

    The programmable timer allows precise operating and timing control and is standard on this furnace. (Figure 10) Overview The programmable timer has the following features: • Long life lithium battery • Daily and weekly programs • One minute minimum switching time •...

  • Page 18: Setting And Adjustment

    Setting and Adjustment Initial Conditions Set the Setting/Regulator switch (Figure 10-B) in RUN position (center). Press the Reset button R. The display will flash. With the Setting/Regulator switch selector in R, the display error EEE will appear. Move the Setting/Regulator switch, (Figure 10-B) to the RUN (center) position.
  • Page 19 D. Press the Day Setting, (1……7, Figure 11-D) button to program another day or block of days. E. To set further programs repeat steps item B through D above. NOTE: When the same ON and OFF times are desired for different days of the week, the setting procedure may be simplified. •...

  • Page 20: Troubleshooting

    Starting Sequence (Electrical) Step 1 1. Check L1 – L2 (Supply 120 V, 60 Hz) 2. Check M9 (Main fuse) Troubleshooting Step 1 Point 1 (L1-L2) No voltage (120 V). Check the electrical supply line, wiring and connections. Point 2 (M9) Fuse damaged.
  • Page 21 Troubleshooting Step 3 Point 5 (Z1) Z1 is open and no ignition. Check wiring and connections. If everything is okay, replace the switch. Point 7 (M2) M2 is closed and fan thermostat temperature lower than 104 °F. Check wiring and connections. If they are okay, replace the thermostat.
  • Page 22 Point 13 (TR) No inlet voltage (120 V). Check 5 pole connector and control box. If everything is okay, replace the connector. No outlet voltage (24 V) during ignition. Check wiring and connections. If everything is okay, replace the transformer. Point 14 (EV1) Valve closed during ignition (Z2 down).

  • Page 23: Replacement Parts

    Electric Box Gas Assembly Replacement Parts TR – 120/24V Transformer Ignition Control Box NP – Pressure Switch Z9 – Room Thermostat Z1 – Reset and Summer/Winter Switch Z8-Z3 – Timer and Manual- Program Mode Switch Z2- Hi-Lo Flame and Fan Speed Switch SF/SB –...
  • Page 24 S – Combustion Blower Motor M1 – Overheat Thermostat M2 - Fan Thermostat M - Fan Motor Williams Furnace Co., 250 West Laurel Street, Colton, CA 92324 U.S.A. Part Number: JLTT015 Part Number: JLTT023 Part Number: JMTR020 Part Number: JTRM006...

This manual is also suitable for:

2903512

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