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Instructions for Williams Gas Appliance
Conversion Kits 8901, 8902 & 8903
KIT CONTENTS:
(1)
Pressure Regulator
(4)
Pilot Orifices (L.P. Gas)
(1)
Burner Orifice (L.P. Gas)
Kit number 8901 & 8902 is for use with model numbers: 2509622; 3509622;
Kit number 8903 is for use with model numbers: 5009622
WARNING: This conversion kit shall be installed by a qualified service agency in accordance with
the manufacturer's instructions and all applicable codes and requirements of the authority having
jurisdiction. If the information in these instructions is not followed exactly, a fire, explosion or
production of carbon monoxide may result, causing property damage, personal injury or loss of life.
The qualified service agency is responsible for the proper installation of this kit. The installation is not
proper and complete until the operation of the converted appliance is checked as specified in the
manufacturer's instructions supplied with the kit.
WARNING: The Williams conversion kit numbers 8901 & 8902 can only be used on the model gas
NUMBERS 2509622; 3509622; 3509622.6; 3509922, gas valve 6003. The Williams conversion kit
8903 can only be used on the model 5009622, gas valve 6003. They must never be used on any
other brand of gas valve. DO NOT USE THE CONVERSION KIT ON ROBERTSHAW BRAND GAS
VALVES. If you are unable to determine that gas valve model number, do not convert your furnace.
MANUFACTURED FOR USE WITH PROANE GAS AND EQUIPPED WITH GAS VALVE PART
NUMBER 6003 ONLY.
CAUTION:
The gas supply shall be shutoff prior to disconnecting the electrical power (if equipped
with blower) before proceeding with the conversion.
CONVERSION INSTRUCTIONS-NATURAL GAS TO L.P. GAS
1. Shut off gas to the furnace.
2. Shutoff electric to the furnace (if equipped with blower).
3. Remove face panel from furnace.
4. Disconnect gas supply line from control valve.
5. Disconnect thermostat wires from control valve.
CAUTION: Label all wires prior to disconnection for proper reconnection
6. Remove manifold retaining plate from burner pan by unscrewing ( ) Phillips head screws.
Except model 35099(1, 2)2.
7. Remove burner pan from furnace by unscrewing ( ) Phillips head screws securing pan to
furnace. Except model 35099(1, 2)2.
8. Remove burners (item 2) by unscrewing ( ) Phillips head screws, screw on bracket (item 1)
and ( ) screw on burner (item 2). See figure 1
Note: Bracket (item 1) engages into slot on inner shield of furnace.
Natural Gas to Propane Gas
(2) Conversion Labels
(2) Screws
(1) L.P.G. Tag
3509622.6; 3509922
1
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Table of Contents
Summary of Contents for Williams 8901
- Page 1 WARNING: The Williams conversion kit numbers 8901 & 8902 can only be used on the model gas NUMBERS 2509622; 3509622; 3509622.6; 3509922, gas valve 6003. The Williams conversion kit 8903 can only be used on the model 5009622, gas valve 6003.
- Page 2 9. Use a 7/16” boxed end wrench and remove the main burner orifices ( ) from the manifold and replace with the orifices provided in this kit. See Figure 1. 10. Remove the pilot orifice from pilot and replace with orifice provided in this kit. See figure 2A, 11.
- Page 3 CHART TO BE USED ON CONVERSION LABEL MODEL NO. HEATING ON RATING NEW MODEL NEW INPUT CAPACITY NEW ORIFICE KIT NO. PLATE BTU/HR TU/HR SIZE 8901 2509622 2509621 25,000 19,350 8902 3509622 3509621 35,000 25,930 3509622.0001 3509621.0001 32,000 25,930 After conversion is completed, the large conversion label provided in this kit must be filled out completely (using chart information).
- Page 4 RATE VERIFICATION Refer to the lighting and Operating Instruction Plate located in control area of furnace for instructions on lighting the pilot. 1. Make certain there is no gas flow through the meter other than to the appliance being checked. Other appliances must remain off and the pilots extinguished (or their consumption deducted from the meter reading).
- Page 5 CONVERSION TABLE TIME FLOW FLOW TIME FLOW FLOW TIME FLOW FLOW M3/hr M3/hr 2.55 1.81 1.16 2.50 1.78 1.10 2.44 1.76 1.08 2.38 1.73 1.02 2.32 1.70 2.27 1.64 2.21 1.59 2.18 1.53 2.12 1.50 2.07 1.44 2.04 1.42 2.01 1.39 1.95 1.33...
- Page 6 IMPORTANT: LEAVE THESE INSTRUCTIONS WITH THE HOMEOWNER. MANUFACTURED FOR: WILLIAMS FURNACE COMPANY, COLTON, CA USA (909)825-0993 6003 NATURAL 4”W.C. MAX ½ P.S.I. OR MILLIVOLT SYSTEM ONLY. REPLACEMENT PART no. P323011 Made in Taiwan.
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