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Williams
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8931
User Manual
6 pgs68.13 Kb0

Williams 8931, 8932, 8933, 8934 User Manual

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Page 1
Instructions for Williams Gas Appliance
KIT CONTENTS:
(1) Pressure Regulator (2) Conversion Labels (4) Pilot Orifices (L.P. Gas) (2) Screws (1) Burner Orifice (L.P. Gas) (1) L.P.G. Tag
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 8931, 8932, 8933 & 8934 can only be used on model gas valve 6003. It 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. Shut off 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. Use a boxed end wrench and remove the main burner orifices (2) from the manifold and replace with the orifices provided in this kit. See Figure on page 2.
7. Remove pilot orifices from pilot and replace with orifice provided in this kit. See Figure 2A, B.
8. To replace the pressure regulator on the gas valve. Refer to Figure 1.
9. Push in gas control knob slightly and turn clockwise to “OFF”
Conversion Kits 8931, 8932, 8933 &8934
Natural Gas To Liquid Propane Gas
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10. Remove (2) screws from the pressure regulator.
11. Lift the pressure regulator and gasket from valve and discard.
12. Install the new gasket, pressure regulator and (2) screws from this conversion kit.
IMPORTANT: Discard old gasket and screws. Do not reuse.
13. IMPORTANT: Check the location of the pilot to the burner. See Figure4.
14. Reassemble the furnace by following Steps 1 thru 5 in reverse order.
IMPORTANT: LABEL PLACEMENT
After conversion is completed, the large conversion label provided in this kit must be filled out completely (using chart information). Attach small conversion label to gas valve, and attach large data conversion label to inside of the casing door next to rating plate. Remove:”Natural Gas” tag from burner and replace with “Liquid Propane Gas’ tag provided with this kit. This is necessary to provide information for future servicing. Failure to do so could result in property damage, personal injury or death.
Refer to the Lighting and Operating Instruction Plate located in control area of furnace for instructions on lighting the burner.
WARNING
Any adjustments must be performed by a qualified service technician only. Improper adjustments could result in property damage, personal injury or death. The following information is provided for use by a qualified service technician.
With main burner in operation, check all pipe connections, pilot gas tubing and around pressure regulator for gas leaks with a rich soap and water solution. Bubbles indicate gas leakage. Never use a match or open flame to test for leaks. Correct even the slightest leaks at once before using furnace.
ADJUST PILOT BURNER NOTE: Pilot gas may need adjustment depending on inlet pressure, increase or decrease to
obtain proper setting.
Pilot flame should surround 3/8 inch to 1/2 inch of the generator tip. To adjust, remove pilot adjustment cap.
1. Remove screw cover over pilot adjusting screw.
2. Insert small screwdriver. Adjust flame as needed. Turn screw counter clockwise to increase flame or clockwise to decrease flame.
3. Turn thermostat to highest setting. Main burner should light quickly and smoothly. Turn thermostat to lowest setting. Main burner should go out. Pilot should remain lit.
4. Replace screw cover over pilot adjusting screw.
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WARNING: DANGER OF PROPERTY DAMAGE, BODILY INJURY OR DEATH. Liquid petroleum (L.P.) is heavier than air and it will settle in any low area, including open depressions, and it will remain there unless area is ventilated. Never attempt startup pf unit before thoroughly ventilating area. The surface of the furnace is hot during operation. Keep children, clothing, furniture and flammable material away from it. Do not store or use gasoline or other flammable liquids or vapors near the furnace.
CHART
TO BE USED ON CONVERSION LABEL
KIT NO.
9917 2001621 2001622 20,000 16,000 #47 9918 3501521;
7683 5001522;
7684 6501521;
After conversion is completed, the large conversion label provided in this kit must be filled out completely (using chart information). Attach small conversion label to gas valve, and attach large data conversion label to inside of casing door next to rating plate. Remove “Natural Gas” tag from burner and replace with “Liquid Propane Gas” tag provided with this kit. This is necessary to provide information for future servicing. Failure to do so could result in property damage, personal injury or death.
The minimum inlet pressure in the in the gas supply should be 11.0” for Propane Gas. The maximum inlet pressure should never exceed 13.0”. This should be checked at the 1/8” inch N.P.T. plugged tapping in the supply line with a manometer.
The manifold pressure for this appliance is 10.3” w.c. for Propane Gas. Check with a manometer at the pressure tap on the control valve. To adjust pressure, remove cap from regulator and turn regulator adjustment screw on the control valve. To adjust pressure, remove cap from regulator and turn regulator adjustment screw clockwise to increase and counter clockwise to decrease pressure.
MODEL NO. ON RATING
PLATE
3501921; 3502521;
3502921
5001922; 5002522;
5002922
6501922; 6502522;
6502921
NEW MODEL NO.
3501522;3501922; 3502522; 3502922
5001522; 5001922;
5002522;5002922
6501522;6501922;
6502522;6502921
IMPORTANT: LABEL PLACEMENT
CHECK GAS PRESSURE
NEW INPUT
BTU/HR
35,000 26,250 #36
50,000 37,500 #30
65,000 50,400 #28
NEW
HEATING
CAPACITY
TU/HR
NEW
ORIFICE
SIZE
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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).
2. With gas control knob in “ON” position, cycle main burner on and off several times by means of thermostat o stabilize pressure regulator valve (PRV) diaphragm.
3. With second hand on watch, carefully clock gas meter to determine exact rate of gas flow to main burner in cubic feet per hour (see CONVERSION TABLE below).
4. Compare actual input with manufacturer’s recommended hourly input stamped on rating plate. Convert BTU per hour input rating to cubic feet of gas per hour (cfh) by using the following formula.
Where as: PRV = Pressure Input Rating in BTU per Hour = Cubic Feet of
Regulator Valve BTU Content of Gas per cu ft Gas per Hour
MJ= Megajoule Input Rating in MJ/hr = m3/hr MJ of Gas per m3
M3= Metric Cube
5. If actual gas flow (cfh) does not conform to manufacturer’s recommended input rating (cfh of BTU converted to CFH), a limited adjustment of the PRV may be made. Turn PRV adjusting screw clockwise to increase or counter clockwise to decrease gas flow. Burner input must not exceed nameplate rating.
6. Replace cap screw in PRV adjustment stack. Turn gas supply to other appliances back on and re-light all pilots.
7. Place furnace in operation and observe through at least one complete cycle to be sure all controls are operating satisfactorily.
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CONVERSION TABLE
TIME
Sec
40 90 2.55 56 64 1.81 88 41 1.16 41 88 2.50 57 63 1.78 92 39 1.10 42 86 2.44 58 62 1.76 96 38 1.08 43 84 2.38 59 61 1.73 100 36 1.02 44 82 2.32 60 60 1.70 105 34 .96 45 80 2.27 62 58 1.64 110 33 .93 46 78 2.21 64 56 1.59 115 31 .88 47 77 2.18 66 54 1.53 120 30 .85 48 75 2.12 68 53 1.50 125 29 .82 49 73 2.07 70 51 1.44 130 28 .79 50 72 2.04 72 50 1.42 135 27 .76 51 71 2.01 74 49 1.39 140 26 .74 52 69 1.95 76 47 1.33 150 24 .68 53 68 1.93 78 46 1.30 160 23 .65 54 67 1.90 80 45 1.27 170 21 .59 55 65 1.84 84 43 1.22 180 20 .57
FLOW
Cfh
For ½ cu. ft. per revolution of meter dial, multiply flow rate by 2. For 2 cu. ft. per revolution of meter dial, divide flow rate by 2.
FLOW
M3/hr
TIME
Sec
FLOW
Cfh
FLOW
Cfh
TIME
Sec
FLOW
Cfh
FLOW
M3/hr
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IMPORTANT: LEAVE THESE INSTRUCTIONS WITH THE HOMEOWNER.
Replacement Parts List
2001621; 2031621; 2051621; 2001622; 2031622; 2051622 Models
No. Description 2001621; 2031621;
2051621
1. Wrapper Assembly K000275 K000275
2. Draft Diverter Assembly K000274 K000274
3. Combustion Chamber K000279 K000279
4. Base Plate K000265 K000265
5. Valve Bracket K000850 K000850
6. Control Valve P322660 P232011
7. Burner K000851 K000851
8. Orifice Fitting P500086 P500086
9. Burner Orifice P322915 P501771
10. Pilot & Generator Assembly P501618 P501617
11. Electrode P322276 P322276
12. Igniter Bracket 7A189 7A189
13. Vent Safety Switch P500406 P500406
14. Thermostat P322016 P322016
16. Wire Assembly P500409 P500409
17. Manual Spark Igniter P285500 P285500
18. Manifold Plate K000852 K000852
19. Manifold Assembly K000848 K000848 Note: Screws, bolts and washers are standard hardware and may be purchased locally.
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.
20011622; 2031622;
2051622
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