PSD - Alsip, Illinois WATER HEATER BULLETIN Date: December 20, No. Rev. 2 Subject: Gas Water Heater Conversion Policy To: All Accounts * This supersede all previous letters and field bulletins concerning residential and commercial water heater conversion. GAS WATER HEATER CONVERSION POLICY All A.O. Smith Water Products Company s residential and commercial gas water heaters are designed certified by CSA or UL, under ANSI Standards for operation on one type of gas only, as indicated on the water heater s model number and rating plate. A.O. Smith realizes that there may be certain situations where a field conversion may be necessary and in order to facilitate such a conversion, A. O. Smith complies with CSA or UL regulations ensuring that a field conversion be appropriately and safely completed. An improper field conversion from one type of gas to another could cause potentially dangerous conditions that may cause an explosion or fire resulting in property damage, bodily injury or both. A.O. SMITH WILL ONLY ALLOW THE CONVERSION OF GAS WATER HEATERS FROM LP GAS (PROPANE) TO NATURAL GAS. THE CONVERSION OF A GAS WATER HEATER FROM NATURAL GAS TO LP GAS (PROPANE) IS NOT ALLOWED UNDER ANY CIRCUMSTANCES. A.O. Smith will provide kits as demand warrants through our Parts Department, phone no. -00--2. Prices, dimensions and specifications are subject to change without notice. Each conversion kit is to be installed by an A.O. Smith service agent or a gas utility serviceman in accordance with A.O. Smith s written instructions and all codes and requirements of the authority having jurisdiction. Failure to follow instructions could result in serious injury or property damage. The utility performing this work assumes responsibility for this conversion. Changing the Input on Gas Water Heaters The only changes to the input of a gas water heater allowed are: Adjustments to match that shown on the rating plate of the heater. The installation instructions supplied with the heater indicate if adjustments to input are a required procedure. Changes made as required to adjust the heater for proper operation at high altitude as determined by a qualified service technician. Service manuals include the proper procedure for adjusting heaters at high altitudes. Conversion of Gas Water Heaters The conversion of LP gas (Propane) to Natural gas is ONLY allowed providing: The conversion is done as part of a gas utility s program where propane appliances were installed anticipating the completion of natural gas service to the area. The conversion must be done under the direct supervision of the utility and by their service representatives. Claims of damage or injury arising from the unauthorized conversion of any A.O. Smith water heater not design certified for conversion will be the complete and total responsibility of the person or entity making the conversion. If you have any questions regarding the above policy, please contact the A.O. Smith Parts Department at -00--2 or our Technical Information Center at -00-2-. A.O. SMITH WATER PRODUCTS CO., INC. 2 W. TH STREET ALSIP, ILLINOIS 00 PHONE: -00--2 FAX: -00--2 www.hotwater.com Printed in the U.S.A. 2 0/00 No. Rev. 2
. &." cq]." [RJ=,J::J COMMERCIAL PSD--/b @ - POWER BURNER COPPER BOILER PARTS LIST LEGEND 2000 MODELS LW/LB-000 SERIES 20 & *2 * * " - " " /, / --r J/ I LEGEND 2000 I I BY-PASS KIT PARTS LIST I I I I./ j -,.. '" I ' -, " ) ) I." I -- 2.,..::;,,' Part Numbers Description Ball Valve........................................ Control, Tank Temperature LW s.................. Hex Reducing Bushing (for use w/relief valve): Relief LBs Valve: LB s..................................... Tee, Condensate.................................. Tee (for use w/relief valve): LW s.................................... Tee, LBs 2".......................................... 0 2. Not illustrated... On LB models the circulating pump must be installed between Valve, Manual Shutoff............................... Vent Patch Assembly............................... the boiler inlet and the bypass. LW models have pump mounted inside jacket. 000 0-0- 0- See Orifice Table - -2 2-2 200- -2 - - 22 2-2 A.O. SMITH WATER PRODUCTS CO., INC. 2 W. TH STREET. ALSIP, ILLINOIS 00 PRINTED IN U.S.A. PHONE: -00--2. FAX: -00--2. WWW.HOTWATER.COM May
LEGEND 2000 PARTS LIST A 2 0 2 20 2 22 2 2 2 2 2 2 2 2 0 Description Bushing, Temp. Sensing............................. Connector, Hose................................... Control, Dual Limit (for LB),...,..,..,..."."..,."., Cover........................................... Gasket, Outer..................................... Gasket, Inner..................................... Igniter.......................................... Nut, Manifold..................................... O-Ring.......................................... Power Supply, Temperature Indicator.................... Screw, Machine #-2 SST........................... Sensor, Temperature w/temperature Indicator............. Switch, Safety Flow................................. Tube Assembly, Primary (LB s).................... Washer, Flat # SST................................ Restrictor Air, Top Cover............................. Part Numbers 000 02 0-2 0 22-0- 2 - - 2-2 - -2 0 0 2-0 - 2 2 222 222 2 0 2-
LEGEND 2000 PARTS LIST B 2 0 2 20 2 22 2 2 2 2 2 2 2 0 2 Description Bracket, Dia-Scan................................... Handle, Lower Front Panel............................ Indicator, Temperature................................ Label, Control Panel................................. Nut, Hex #-2..................................... Panel, Rear....................................... Panel, Upper Front.................................. Power Supply, Temperature Indicator..................... Screw #0, Ground.",,..,..,.."...". Switch, Rocker..................................... Washer, Lock #0................................... Washer, Lock #.................................... Washer, Flat /" Part Numbers 000 20 - - 2 0-22 02 0 2-2- 0 2 0-2 2 0-00 0 0-200- 2 0 - -
LEGEND 2000 PARTS LIST C 2 0 2 20 2 22 2 2 2 2 2 2 2 0 DescriDtion Clamp, Hose (Large)................................ Clamp, Hose (Small)................................ Connector, Port................................... Drain, Flange..................................... Elbow...............!............................ Gasket, Drain..................................... Gasket, Vent..................................... Nipple.......................................... O-Ring.......................................... Plate, Drain Seal................................... Tube Assembly, Inlet................................ Tube Assembly, Primary (LB s).................... Tubing, Condensate................................ Tubing, Pressure.................................. Valve, Drain...................................... Washer, Flat...................................... Washer, Lock /".................................. Bracket, Vent Support............................... Vent, Restricting Ring (Series, LP).................. Part Numbe!: 000-20 2 22-20- 022-2 220 20 222 2 2 22 - -2-00 2 2-
LEGEND 2000 PARTS LIST D Description Blower.......................................... 2 Gasket, Blower Air Inlet.............................. 0 Gasket, Burner.................................... Gasket, Manifold................................... 2 Manifold Assembly................................. Nipple, Close /".................................. Nipple, Close Stainless.............................. Nipple, Tapped.................................... 20 2 Nipple, /" x ".................................. 22 2 2 Orifice, Air (Series 20 - Natural Gas).................... Orifice, Air (Series - Liquid Propane Gas) """"""'" 2 2 2 2 2 0 2 0 2 Screen, Air Inlet................................... Screw, Flathead #-2 x /".......................... Switch, Low Gas Pressure............................ Tee, Union....................................... Tubing, Pressure.................................. Tubing, Top Cover Assembly.......................... Valve, Main Gas................................... Part Numbers 000 2 22-22 222 22 0-22 - 20-2- 0-2 0-2 0-2 0 0-2 0-022 220-220- See Orifice Table 2 2-2220- 00-2 2 2- - 0 0 2 2-0- 2-2 00
lte.rn LEGEND 2000 PARTS LIST E Descrigtion 2 0 2 Nipple, /"."""""""".'.'..""..'..'..'.'.'." Connector, Angle /".'."'..'..'.'..'."."...'. Bleeder, Tube.""".'.."""."'..'..' '.'.'..'.. Bleeder, Tube, "."".""..."",.,..,.. '.'.""."".'..'.".".'.' '."'..".".".""."..'",,, 00-0 20 2-0 - 0-0-2 0-0 0 22 0-2 0-0- 2 200 2 LW/LB 000 SERIES CANADA/USA LIQUID PROPANE GAS / c o. "'",,/ r' I.0 /"'00-2 "S! /
2 0 2 20 2 22 2 LEGEND 2000 PARTS LIST F Part Numbers Fuse. 2 Amp Descriotion........................................Q.Q2-0 2-2 2 Holder, Fuse...................................... 2- Strip, Terminal.................................... 20 2 0 200 200- Washer,Lock#0, 00. 2.
LEGEND 2000 ORIFICE TABLE LW/LB-000 NATURAL MODEL LW/LB 000 PART NUMBER *2222-0 I LW/LB000 2222-2222-2 I LW/LB 000 *2-0 2-2-2 I LW/LB000 * SIZE PROPANE PART NUMBER ELEVATION 0. 0. 0. (FT.) 0-2000 200-000 00-000 0. 0.2 0.2 0-2000 200-000 00-000 Factory installed orifice. WIRE (SOLID COLORS) WIRI GAUGB A.O.S. PR'r 0. WHI'fB 0 BLACK 0 BROW. 00 YBLLOW 00 RBD 00 GRBB.. 02 WHI'fB 00 BLACK 0 WHI'fB. 0 BLACK. 00 BLUB (Use dash no. after part no. to Indicate length of wire required in inches.) Example: Green, # gauge, 20" in length A. O. S. part no. 02-020. WIRE (STRIPED COLORS, # GAUGE) WIRS A.O.S. BLACK with WHITS BLACK with BLACK with BLACK with PART MO.. RSD YSLLOW BLUE BLACK with GREEK WHIT. with BLACK RED WHIT. with WHIT. with A.O.S. WIRE YELLOWwith PAR'r 0. BLUI YELLOWwith VIOLET YELLOW with BROWI YELLOWwith GREIM RID 2 BLUI with BLUI with WHITE - 00 BLUE with YILLOW. RED with YELLOW GRESN 0 WHIT. with YELLOW 02 RED with WHITI WHIT. with BROWN 0 RID with GRill BLU WHITS with WHIT. with BLUS 0. VIOLET 0 YSLLOWwith YSLLOWwith RED 0 BLACK 0 _.P:I) wi th (Use dash no. after part no. to indicate lengtl. of wire required in inches.) Example: Yellow with brown stripe A. O. S. part no. 0-020 20" in length. W.P.C. PART NO. 20 REV. 2