Empire Comfort Systems GWT-50-2 User's Manual
Contents
1. USE ONLY MANUFACTURER S REPLACEMENT PARTS USE OF ANY OTHER PARTS COULD CAUSE INJURY OR DEATH HOW TO ORDER REPAIR PARTS Parts can be ordered only through your service person or dealer For best results the service person or dealer should order parts through the distributor Parts can be shipped directly to the service person dealer All parts listed in the Parts List have a Part Number When ordering parts first obtain the Model Number from the name plate on your equipment Then determine the Part Number not the Index Number and the Description of each part from the following appropriate illustration and list Be sure to give all this information Furnace Model Number Part Description Furnace Serial Number Part Number Type of Gas Propane or Natural Do not order bolts screws washers or nuts They are standard hardware items and can be purchased at any local hardware store Shipments contingent upon strikes fires and all causes beyond our control Empire Comfort Systems Inc Nine Eighteen Freeburg Ave Belleville Illinois 62222 0529 12426 4 0104 Page 15 z ea p gt 2 z al 12426 4 0104 Page 16 Note Index REMOTE BULB CONTROL INSTALLATION INSTRUCTIONS MODELS GWT 25 RB GWT 35 RB GWT 50 RB SCREW TERMINALS FOR WIRE ASSEMBLY CONTROL2. INSTALLATION INSTRUCTIONS AND EMPIRE OWNER S MANUAL GRAVITY VENTED DUAL WALL FURNACE MODEL 2 GWT 50 2 SG RB PA EFFECTIVE DATE JANUARY 2004 WARNING If the information in this manual is not followed exactly a fire or p p explosion may result causing property damage personal injury or loss of life Do not store or use gasoline or other flam SK mable vapors and liquids in the vicinity ME of this or any other appliance Installer Please leave these instructions with WHAT TO DO IF YOU SMELL GAS the consumer Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building 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 Consumer Please retain these instructions for future use WARNING If not installed operated and maintained in accordance with the manu facturer s instructions this product could expose you to substances in fuel or from fuel combustion which can cause death or serious illness Installation and service must be per formed by a qualified installer service agency or the gas supplier 12426 4 0104 Page I TABLE OF CONTENTS ECTI PAGE Important Safety vre eie 3 Safety Information for Users of LP Gi
3. 3 8 1 2 3 8 1 3 cm 1 0 cm 1 3 cm 1 0 cm 10 40 1 2 1 2 5 8 1 2 1 3 cm 1 3 cm 1 6 cm 1 3 cm 40 100 1 2 1 2 3 4 1 2 1 3 cm 1 3 cm 1 9 cm 1 3 cm 100 150 3 4 1 2 7 8 3 4 1 9 cm 1 3 cm 2 2 cm 1 9 cm Note Never use plastic pipe Check to confirm whether your local codes allow copper tubing or galvanized Note Since some municipalities have additional local codes it is always best to consult your local authority and installation code Check all local codes for requirements especially for the size and type of gas supply line required On Natural gas lines less than 15 4 57m long use 1 2 pipe on longer runs use 3 4 iron pipe or equal On LP gas lines please consult LP gas supplier Installing a New Main Gas Cock Each appliance should have its own manual gas cock In the state of Massachusetts the gas cock must be a T handle type A manual main gas cock should be located in the vicinity of the unit Where none exists or where its size or location is not adequate con tact your local authorized installer for installation or relocation Compounds used on threaded joints of gas piping shall be resistant to the action of liquefied petroleum gases The gas lines must be checked for leaks by the installer This should be done with a soap solution watching for bubbles on all exposed connections and if unexposed a pressure test should be made Never use an exposed flame to check for leaks Appliance must be disconnected
4. C ITS EQ S IL Y A UN FIL ORIG QUI DOIT REMPLA AVEC UN F GENRE ORIGIN OT SMOOTH INSULATIO ARG D ELECTRICITE GAINE LISSE NOIR a L NOIR TROLE DU VENTILATEUR AL WIRE AS SUPPLIED WITH THIS D IT MUST BE REPLACED WITH UIVALENT NAL FOURNI AVEC L APPAREIL CE IL DOIT ETRE REMPLACE 25 C 0U L EQUIVALENT OoOOMNMMRNONN PART NUMBER R 2204 8720161 15888 8520142 GWT 197 R 3085 R 2503 15887 8520141 R 2804A PARTS LIST DESCRIPTION CORD SET STRAIN RELIEF BUSHING BLOWER HOUSING ASSEMBLY BRASS BUSHING 4 REQUIRED BLOWER SIDE 2 REQUIRED WIRE ASSEMBLY FAN SWITCH BLOWER FRONT RUBBER GROMMET 4 REQUIRED BLOWER MOTOR Page 19 SERVICE NOTES Empire Comfort Systems Inc Nine Eighteen Freeburg Ave Belleville Illinois 62220 2623 Page 20 PH 1 618 233 7420 PH 1 800 851 3153 FAX 1 618 233 7097 FAX 1 800 443 8648 E MAIL info empirecomfort com WEB SITE www empirecomfort com 12426 4 0104
5. Index Part Index Part No Number Description No Number Description 1 WFA 115 HEADER GASKET 16 GWT 095 EXCHANGER ASSEMBLY 2 GWT 175 HEADER ASSEMBLY REAR INCLUDES NO 1 GASKET 17 GWT 094 EXCHANGER ASSEMBLY USA FRONT 2 15756 HEADER ASSEMBLY 18 R 3036 PILOT NAT INCLUDES NO 1 GASKET 18 R 3037 PILOT LPG CANADA 19 R 1054 THERMOPILE 3 GWT 184 INNER CASING ASSEMBLY 20 GWT 096 BURNER BRACKET ASSEMBLY 4 GWT 151 DIVERTER ASSEMBLY 21 R 5245 GAS VALVE NAT 2 REQUIRED 21 R 5246 GAS VALVE LPG 5 GWT 020 FRONT SHIELD 2 REQUIRED 22 R 3031 BURNER 6 REQUIRED 6 GWT 077 HEAT SHIELD 2 REQUIRED 23 P 88 55 BURNER ORIFICE NAT 7 GWT 177 OUTER CASING ASSEMBLY 6 REQUIRED 2 REQUIRED 23 P 88 65 BURNER ORIFICE LPG 8 GWT 186 CASING BRACKET 6 REQUIRED 4 REQUIRED 24 GWT 014 AIR SHUTTER FRONT LPG 9 GWT 087 CASING DOOR ASSEMBLY 2 REQUIRED 2 REQUIRED USA 25 GWT 015 AIR SHUTTER REAR LPG 9 15739 CASING DOOR ASSEMBLY 2 REQUIRED 2 REQUIRED CANADA 26 GWT 054 AIR SHUTTER BOTTOM LPG 10 R 885 NYLON WASHER 2 REQUIRED 4 REQUIRED NOT SHOWN GWT 099 PILOT TUBING 11 Cl 253 MAGNET 4 REQUIRED NOT SHOWN R 3178 PILOT ORIFICE HONEYWELL 12 Dv 064 COVER PLATE 2 REQUIRED K14 014 LPG ONLY 13 GWT 008 BURNER COMPARTMENT NOT SHOWN R 3179 PILOT ORIFICE HONEYWELL FRONT 2 REQUIRED A26 026 NAT ONLY 14 R 3046 VENT SAFETY SWITCH NOT SHOWN R 734 MATCH HOLDER 15 R 3038 A ECO LEAD ASSEMBLY NOT SHOWN GWT 190 HARDWARE PACKAGE 2 REQUIRED
6. ODOR FADE Some people cannot smell well Some people cannot smell the odor of the chemical put into the gas You must find out if you can smell the odorant in propane Smoking can decrease your ability to smell Being around an odor for a time can affect your sensitivity or ability to detect that odor Sometimes other odors in the area mask the gas odor People may not smell the gas odor or their minds are on something else Thinking about smelling a gas odor can make it easier to smell The odorant in LP gas is colorless and it can fade under some circumstances For example if there is an underground leak the movement of the gas through soil can filter the odorant Odorants in LP Gas also are subject to oxidation This fading can occur if there is rust inside the storage tank or in iron gas pipes The odorant in escaped gas can adsorb or absorb onto or into walls masonry and other materials and fabrics in a room That will take some of the odorant out of the gas reducing its odor intensity LP Gas may stratify in a closed area and the odor intensity could vary at different levels Since it is heavier than air there may be more odor at lower levels Always be sensitive to the slightest gas odor If you detect any odor treat it as a serious leak Immediately go into action as instructed earlier SOME POINTS TO REMEMBER Learn to recognize the odor of LP gas Your local LP Gas Dealer can give you a Scratch and Sniff pamphlet Us
7. Do not allow wall finish materials to project into furnace re cess HEADER ASSEMBLY Figure 4 Installing Furnace Figure 5 12426 4 0104 Clear the recess ofall debris and remove any wood plaster grounds Stand the furnace on floor in front of wall opening Insert furnace flue into rectangular opening in header plate and raise furnace carefully see Figure 5 Swing bottom of furnace into wall opening with back of legs flush with rear of floor plate Secure furnace support legs to the floor plate TILT FURNACE AND INSERT FLUE INTO RECTANGULAR OPENING IN HEADER PLATE RAISE FURNACE AND SWING BOTTOM OF UNIT INTO WALL OPENING SECURE SUPPORT LEGS TO FLOOR PLATE Figure 5 Page 9 FINISHING INSTRUCTIONS continued IMPORTANT Avoid securing too tightly and disturbing the inner casing Do nottry to force furnace into a wall opening which Baus oo is smaller than specified dimension USE MIDDLE SCREW WHEN NO OUTER CASING Figure 6 BLOWER IS INSTALLED 1 Align I 3 4 slot on casing bracket with bottom screw hole on inner casing Attach casing bracket to inner casing with one 1 10 x 1 2 screws for each casing bracket Do not completely tighten screws at this time 2 Place outer casing onto header Attention Use center clearance hole on outer casing top for attachment to header with one 1 8 x 3 8 Phillips screw when optional blower is not installed Attenti
8. and your family from an accident Read them carefully now then review them point by point with the members of your household Someday when there may not be a minute to lose everyone s safety will depend on knowing exactly what to do If after read ing the following information you feel you still need more information please contact your gas supplier LP GAS WARNING ODOR If a gas leak happens you should be able to smell the gas because of the odorant put in the LP Gas That s your signal to go into immediate action Do not operate electric switches light matches use your phone Do not do anything that could ignite the gas Get everyone out of the building vehicle trailer or area Do that IMMEDIATELY Close all gas tank or cylinder supply valves LP Gas is heavier than air and may settle in low areas such as basements When you have reason to suspect a gas leak keep out of basements and other low areas Stay out until firefighters declare them to be safe e Use your neighbor s phone and call a trained LP Gas service person and the fire department Even though you may not continue to smell gas do not turn on the gas again Do not re enter the building vehicle trailer or area Finally let the service man and firefighters check for escaped gas Have them air out the area before you return Properly trained LP Gas service people should repair the leak then check and relight the gas appliance for you NO ODOR DETECTED
9. electrical source is utilized This appliance is equipped witha three prong grounding plug for your protection against shock hazard and should be plugged directly into a properly grounded three prong receptacle Do not cut or remove the grounding prong from this plug For an ungrounded receptacle an adapter which has two prongs and a wire for grounding can be purchased plugged into the ungrounded receptacle and its wire connected to the receptacle mounting screws With this wire completing the ground the appliance cord plug can be plugged into the adapter and be electrically grounded WARNING Unplugging of blower accessory will not stop the heater from cycling To shut heater off Turn temperature dial or thermostat to lowest setting Turn knob on gas control to OFF depressing slightly Do not force CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation Verify proper operation after servicing Oiling The blower motor does not have oiling holes Do not attempt to oil the blower motor 12426 4 0104 INDEX NO GWTB 2 BLK WHT WIRING DIAGRAM GROUND PRISE DE TER U F J RE BLACK NEUTRAL RIBBED INSULATION NOIR NEUTRE GAINE NERVUR E BLACK H NOIR CH FAN CO C INTERRUPTEUR DU C IF ANY OF UNIT REPLACE 125
10. replaced prior to operating the appliance Keep burner and control compartment clean Installation and repair should be done by a QUALIFIED SERVICE PERSON The appliance should be inspected before use and at least annually by a qualified service person More frequent cleaning may be required due to excessive lint from carpeting bedding materials etc It is imperative that control compartments burners and circulating air passageways of the appliance be kept clean 12426 4 0104 DO NOT put anything around the furnace that will obstruct the flow of combustion and ventilation air DO keep the appliance area clear and free from combustible material gasoline and other flammable vapors and liquids DO examine venting system periodically and replace damaged parts DO make a periodic visual check of pilot and burners Clean and replace damaged parts DONOT use this heater if any part has been under water Immediately call a qualified service technician to inspect the heater and to replace any part of the control system and any gas control which has been under water This furnace must not be connected to a chimney flue serving a separate solid fuel burning appliance Page 3 SAFETY INFORMATION FOR USERS OF LP GAS Propane LP Gas is a flammable gas which can cause fires and explosions In its natural state propane is odorless and colorless You may not know all the following safety precau tions which can protect both you
11. the inlet pressure to the gas valve a 1 8 3 175mm N P T plugged tapping accessible for test gauge connection must be placed immediately upstream of the gas supply connection to the appliance 2 The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1 2 psig 3 5 kPa 3 The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psig 3 5 kPa Attention If one of the procedures results in pressures in excess of 1 2 psig 14 w c 3 5 kPa on the appliance gas valve it will result in a hazardous condition Checking Manifold Pressure Both Propane and Natural gas valves have a built in pressure regulator in the gas valve Natural gas models will have a manifold pressure of approximately 3 5 w c 871kPa at the valve outlet with the inlet pressure to the valve from a minimum of 4 5 w c 1 120kPa for the purpose of input adjustment to a maximum of 10 5 w c 2 614kPa Propane gas models will have a manifold pressure approximately 10 0 w c 2 49kPa at the valve outlet with the inlet pressure to the valve from a minimum of 11 0 w c 2 739kPa for the purpose of input adjustment to a maximum of 13 0 w c 3 237kPa A1 8 3 175mm N P T plugged tap
12. vasene lntrod CtO Mesene aer ee NE EE 5 TT 5 Recommended Vent Comin GUE ONuasnasarere bagen eee tees 6 G s SUPPI EE EE EE ERE EE EE eran rere 7 TN 8 Ventilation and Corbeil eerdrn 8 Location Al NodelRuurre varmesentral bang 8 eve Wig RC IOINS ERR ERE EE RE 8 9 TN 9 10 Thermostat Location SG Mole Luvvmgmssmmaemmemmn ermene 11 bighine Instructions gs ce cto vcs Stewie cin oi vide tea eini a RE RE 12 Vent Safety Shutoff Svd 13 Proper Main Burner FlaMesssrosri oesi e E a AE E E EE ES 13 Proper PHO Flam Gonera se EE ec nv e EEEE E eons eee ERE EEE SEE EE EEEE 13 ov 14 Fl 15 HIN 15 PN 16 Remote Bulb Control Installation Instrudfons Lu ngxseraresmemmeeamqnrmnnreuierp 17 Optional Blower Installation Instructions asc 4c5sasscxtsieeserrmanvsinearedvesvenineeiavenarestoeemeneeys 18 19 NNN 20 Page 2 12426 4 0104 IMPORTANT SAFETY INFORMATION THIS IS A HEATING APPLIANCE DO NOT OPERATE THIS APPLIANCE WITHOUT OUTER CASING INSTALLED Due to high temperatures the appliance should be located out of traffic and away from 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 Young children should be carefully supervised when they are in the same room as the appliance Clothing or other flammable material should not be placed on or near the appliance Any safety screen or guard removed for servicing an appliance must be
13. 12426 4 0104 GWTB 2 Page 5 RECOMMENDED VENT CONFIGURATION k 10 OR LESS Note No vent equipment supplied with furnace LISTED VENT CAP 3 05m 4 Oval all parts purchase locally 1 Type B 1 oval pipe 2 Single story type B 1 gas vents require a baseplate and one pair of 1 ceiling plate spacers j 3 Multi story type B 1 gas vents require a baseplate one pair of ceiling 2 MIN plate spacers at the first floor ceiling and one pair of fire stop spacers 61m at each successive ceiling level 3 MIN Type B W gas vent pipe is available for single story or multi 91m story installations Type B W gas vent pipe is to be used with the STORM COLLAR Listed base plate ceiling plate spacers and fire stop spacers INSULATED VENT PIPE ENCLOSURE r _ 10 OR LESS 3 05m ROOF FLASHING 2 MIN B VENT ANN 61m 91m Lis NO HEIGHT ABOVE PARAPET REQUIRED WHEN DISTANCE HOLDOWN SCREWS FROM WALL OR PARAPET IS FOR BASEPLATE CEILING MORE THAN 10 3 05m SPACERS BW INSTALLATION KIT L BASEPLATE NOT SUPPLIED aa HP er NOTE MAINTAIN CLEARANCE TO COMBUSTIBLE MATERIALS Insulated Vent Enclosure Gravity vented wall furnaces installed in buildings with flat roofs can have poor venting The cold vent pipe will have a delay in proper venting and HEADER cause the wall furnace to shut off by the vent safe
14. MOUNTING TABS REMOTE BULB CONTROL CONTROL KNOB SHAFT PLASTIC CLIP VA TO SECURE WIRES TO CASING SIDE CAPILLARY WIRE SENSING BULB I PLASTIC CLIP TO SECURE BULB TO CASING SIDE TERMINALS TO BE CONNECTED TO GAS VALVE INSTRUCTIONS At the option of the owner the remote bulb control may be located on the left or right side of the outer casing Remove remote bulb control from the shipping carton Remove outer casing assembly from shipping carton Note If wall furnace is already installed remove outer casing from unit and lay on floor with front side down Attach wire assembly to remote bulb control Carefully unwind capillary wire on remote bulb control Remove 3 hole plugs from left or right side of outer casing where remote bulb control is to be installed Mount remote bulb control to inside of outer casing with 2 No 6 32 x 1 4 6mm screws Part TO REMOTE BULB TO THERMOPILE TO VENT SAFETY 12426 4 0104 No Number Description 1 GW 130 Remote Bulb Control Kit 2 R 1224 Remote Bulb Control 3 R 2499 Wire Assembly 4 R 1162 Control Knob 5 R 1720 Plastic Clip 3 Required 6 R 1223 Instructions 7 R 1578 No 6 32 x 1 4 6mm Screw 2 Required Caution Remote bulb wire routing is important Wires should be 10 11 12 13 in proper locat
15. Position blower housing on top of header assembly 11 Route 120V field wiring into blower housing through cord set hole on back of blower housing 12 Refer to wiring diagram to make wiring connections inside blower housing Be sure to follow all local and National electrical codes when making field wiring connections 13 Align key hole slots on back of blower housing with 2 screws attached to wall Position blower housing flush with wall surface and on top of outer casing Complete tightening blower housing screws from Step 7 to wall 14 Attach caps and plugs from blower housing and blower front 15 Attach blower front to blower housing with 4 8 x 3 8 screws from Step 9 16 Installation of optional blower assembly is completed 12426 4 0104 Figure 3 Fan Control The automatic fan control is located on the bottom of the blower assembly The fan control is a nonadjustable automatic type The fan control will require between 3 and 7 minutes of main burner operation before the fan control closes and activates the blower The blower will continue to run between 3 and 7 minutes after the main burner shuts off before the fan control opens and deactivates the blower Wiring The appliance when installed must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NF PA 70 or Canadian Electrical Code CSA C22 1 if an external
16. S Select a location near the center of the space to be heated Overflow heat will circulate through doorways into adjacent rooms For large homes or spread out floor plans two or more furnaces are recommended Do not locate furnace where a door could swing over the outer casing or where circulation could be retarded by furniture or cabinets Donot install ina closet alcove or small hall way where the furnace could be isolated by closing doors to the heated space When location is selected check the walls attic and roof to make sure there are no obstructions such as pipes electric wiring etc which would interfere with the installation of the furnace or vent pipe NOTE If Optional Blower is to be used hard wiring must be completed for the optional blower prior to installation of header plate ROUGH IN INSTRUCTIONS Provide an opening in the wall 14 1 2 368mm wide and 66 1 8 168cm high measured from top of floor plate See Figure 2 and Figure 3 Wall depth is to be 2 x 4 framing with 1 4 6 5mm to 5 8 16mm sheeting Attach baseplate not supplied with furnace to header plate with sheet metal screws at each end Attach 4 102mm oval double wall vent pipe to baseplate Attach enough vent pipe so that when installed in wall opening the vent pipe will extend above the ceiling plate by at least 6 152mm Install ceiling spacers according to manufacturer s instructions Two header extensions are attached t
17. depress the gas control knob Hold the gas control knob down to bleed the line 1 Use lighter rod to light pilot with a match If Pilot Does Not Light By Any Means 1 Check gas control knob for being in the Pilot position 2 Check pilotadjustment for being full open counterclockwise to open Page 14 3 If gas is available in the supply tubing the pilot orifice and or pilot burner is probably restricted by a spider web Clean pilot assembly and relight If Pilot Does Not Remain On After Releasing Gas Control Knob 1 Follow instructions and hold gas control knob down longer and harder 2 Determine if pilot flame extends past thermopile if not adjust pilot flame or clean pilot burner 3 Replace thermopile if millivolt reading is less than 300 millivolts when wall thermostat or remote bulb is turned OFF Replace gas control if magnet dropout millivolt reading is over 100 millivolts Pilot Outage During Normal Operation 1 Check input by manifold pressure gauge or gas meter 2 Check millivolt output when furnace is in operation If millivolt output decreases during furnace operation gas control may be defective Main Gas Valve Does Not Open When Thermostat Is Turned On 1 Check millivolt output of thermopile 2 Thermostat wires may be broken 3 Thermostat may be defective 12426 4 0104 PARTS LIST ATTENTION When ordering parts it is very important that part number and description of part coincide
18. ders System Check Figure 7 Figure 7 A millivolt meter is required to check the system Millivolt readings should be TO THERMOSTAT e Across the thermopile terminals 400 450 millivolts with thermostat OFF e Across the thermopile terminals 150 250 millivolts with thermostat ON Across the thermostat wires at the valve less than 30 millivolts with thermostat ON e Across the thermostat wires at the thermostat less than 5 millivolts with thermostat ON Dirty pilot or low pressure will reduce readings 12426 4 0104 Page 11 LIGHTING INSTRUCTIONS gum FOR YOUR SAFETY READ BEFORE LIGHTING x WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life A This appliance has a pilot which must be lighted by phone Follow the gas supplier s instructions hand When lighting the pilot follow these instructions e If you cannot reach your gas supplier call the fire exactly department BEFORE LIGHTING smell all around the appliance Useonly your hand to push in or turn the gas control area for gas Be sure to smell next to the floor because knob Never use tools If the knob will not push in or some gas is heavier than air and will settle on the turn by hand don t try to repair it call a qualified floor service technician Force or attempted repair may WHAT TO DO IF YOU SMELL GAS result in a fire or explosion Do not try to light any ap
19. e 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 If you are not qualified do not light pilot lights perform service or make adjustments to appliances on the LP Gas system If you are qualified consciously think about the odor of LP Gas prior to and while lighting pilot lights or performing service or making adjustments Sometimes a basement or a closed up house has a musty smell that can cover up the LP Gas odor Do not try to light pilot lights perform service or make adjustments in an area where the conditions are such that you may not detect the odor if there has been a leak of LP Gas Odor fade due to oxidation by rust or adsorption on walls of new cylinders and tanks is possible Therefore people should be particularly alert and careful when new tanks or cylinders are placed in service Odor fade can occur in new tanks or reinstalled old tanks if they are filled and allowed Page 4 to set too long before refilling Cylinders and tanks which have been out of service for a time may develop internal rust which will cause odor fade If such conditions are suspected to exist a periodic sniff test of the gas is advisable If you have any question about the gas odor call your LP gas dealer A periodic sniff test of the LP gas is a good safety measure under any condition If at any time you do not smell the LP Gas odorant and you think yo
20. from piping at inlet of control valve and pipe capped or plugged for pressure test Never pressure test with appliance connected control valve will sustain damage A gas valve and ground joint union should be installed in the gas line upstream of the gas control to aid in servicing It is required by the National Fuel Gas Code that a drip line be installed near the gas inlet This should consist of a vertical length of pipe tee connected into the gas line that is capped on the bottom in which condensation and foreign particles may collect 12426 4 0104 FLEXIBLE GAS LINE CONNECTIO 1 2 NPT GAS SUPPLY 1 2 FLEX TUBING AN GE titt C G l 1 2 NPT X 172 FLARE SHUT OFF VALVE RIGID GAS LINE CONNECTION 1 2 NPT CLOSE NIPPLE 1 2 NPT NIPPLE es it 00 4 4 MER 1 2 NPT SHUT OFF VALVE 172 NPT GAS SUPPLY 1 2 NPT UNION Figure 1 The use of the following gas connectors is recommended ANS Z21 24 Appliance Connectors of Corrugated Metal Tubing and Fittings ANS Z21 45 Assembled Flexible Appliance Connectors of Other Than All Metal Construction The above connectors may be used if acceptable by the authority having jurisdiction The state of Massachusetts requires that a flexible appliance connector cannot exceed three feet in length Pressure Testing of the Gas Supply System 1 To check
21. ghting instructions would also apply to the remote bulb control TO VENT SAFETY TO THERMOPILE TO REMOTE BULB Page 17 OPTIONAL BLOWER INSTALLATION INSTRUCTIONS GWTB 2 FOR MODELS GWT 25 SG RB GWT 35 SG RB GWT 50 SG RB Installing Blower Using Three Prong Plug 1 Install furnace according to Installation Instructions and Owner s Manual 2 Refer to Drawing for measurements to locate 2 mounting holes on wall surface above furnace On Solid Wall 3 After locating mounting holes attach 2 10 x 1 1 2 screws provided in blower kit into wall Do not completely tighten screwheads to wall leave a 7 16 gap between screwheads and wall On Sheet Rock Wall 3 After locating mounting holes drill 2 5 16 diameter holes into wall Insert the 2 plastic expansion anchors into holes Insert 2 10 x I 1 2 screws provided in blower kit into 2 plastic expansion anchors Do not completely tighten screwhead to plastic expansion anchors leave a 7 16 gap between screwheads and plastic expansion anchors Refer to Figure 2 4 At the top of outer casing remove 1 screw from center clearance hole that attaches outer casing to header assembly Also remove 2 screws that attach bottom of outer casing to inner casing 5 Pull the outer casing forward approximately 1 inch away from wall surface 6 Remove 4 8 x 3 8 screws that attach blower front to blower housing Caut
22. ion When removing blower front be careful not to damage motor coil wires Damaged coil wires will disable blower function 7 Position blower housing on top of header assembly and route three prong cord set between left side of outer casing and inner casing Caution Blower cord set routing is important Cord set should be in proper location to avoid being overheated Incorrect routing of cord set may result in damage to cord set 8 Replace the outer casing to the wall surface 9 Attach outer casing to header assembly Attention The center clearance hole will not be used The two outside clearance holes will be used to attach outer casing to header assembly 1 screw from Step 4 and 1 screw supplied in hardware package Refer to Figure 1 USE 2 OUTER SCREWS WHEN BLOWER IS INSTALLED USE MIDDLE SCREW WHEN NO BLOWER IS INSTALLED Figure 1 10 Attach outer casing to inner casing with 2 screws from Step 4 11 Align key hole slots on back of blower housing with the 2 screws attached to wall Position blower housing flush with wall surface and on top of outer casing Complete tightening blower housing screws from Step 3 to wall 12 Attach caps and plugs from blower housing and blower front 13 Attach blower front to blower housing with 4 8 x 3 8 screws from Step 6 14 Installation of optional blower assembly is completed Page 18 Caution When installing blower housing onto wall be careful motor coil
23. ion to avoid damage from being overheated Incorrect routing of remote bulb control wires may result in damage to wires and incorrect operation of remote bulb control Follow these instructions and refer to the drawing for proper wire routing If remote bulb control is located on the right side of the outer cas ing carefully bend or loop capillary wire around control This will enable the sensing bulb to be positioned at the bottom of the unit Secure sensing bulb on the inside at the bottom of the outer casing with 2 plastics clips Feed the wire assembly down along the inside of the outer casing Use third plastic clip to secure wire assembly and capillary wire to the casing Approximately 24 610mm from bottom of unit Attach control knob to remote bulb control Install furnace according to instructions in the Installation Instruc tions and Owner s Manual Note If wall furnace is already installed secure outer casing to unit Attach wire assembly to gas valve at the TH and TH TP terminals on the Robertshaw valve Attach wire assembly to gas valve at the THERMO terminals on the ITT valve If the wire assembly has two 1 4 6mm female connectors the connectors should be cut off the wire assembly Strip and bare the wires and attach wires to the THERMO terminals Note This remote bulb control is connected to the gas valve the same way as a wall thermostat Any references made to the ther mostat in the li
24. is not damaged Installing Blower With Hard Wiring 1 When facing the wall opening install 120V electrical outlet junction box inside wall opening on left wall stud approximately 12 inches above header plate 2 Referto Drawing for measurements to locate access hole for electrical wiring on wall surface 3 After locating access hole drill a 1 2 hole into wall 4 Route enough field wiring from 120V electrical outlet junction box through 1 2 access hole in wall for connection to blower housing 5 Install furnace according to Installation Instructions and Owner s Manual 6 Refer to Drawing for measurements to locate 2 mounting holes on wall surface above the furnace On Solid Wall 7 Afterlocating mounting holes attach 2 410 x 1 1 2 screws provided in blower kit into wall Do not completely tighten screwheads to wall leave a 7 16 gap between screwheads and wall On Sheet Rock Wall 7 After locating mounting holes drill 2 5 16 diameter holes into wall Insert 2 plastic expansion anchors into holes Insert 2 10 x I 1 2 screws provided in blower kit into 2 plastic expansion anchors Do not completely tighten screwhead to plastic expansion anchors leave a7 16 gap between screwheads and plastic expansion anchors Refer to Figure 2 STEP 3 Y Figure 2 8 Remove three prong cord set from blower housing 9 Remove 4 8 x 3 8 screws that attach blower front to blower housing 10
25. just below its tip Natural gas pilots require adjusting when the inlet gas pressure is above 5 w c 1 245kPa Remove the pilot cover screw on the control valve and turn the adjustment screw clockwise to reduce flame Replace pilot cover screw to eliminate gas leaking at that control valve opening LP gas propane will not require adjustment After use cleaning may be required for the proper flame Examine the pilot flame before and during each heating season 12426 4 0104 I rs Figure 10 Page 13 TROUBLESHOOTING GENERAL All furnaces have been fire tested to check for proper operation This includes main burner flame pilot flame and gas control operation Ifthe furnace fails to function on initial installation it is advisable to re check the following 1 Inlet gas pressure 2 Type of gas being used and that shown on the rating plate The Service Department at Empire Comfort Systems Inc may be contacted to assist in servicing furnace Servicing the Pilot and Main Burner Pilot Orifice Thermopile and Main Burner Orifice Disconnect the gas supply at the inlet to the control valve Remove the burner assembly to which the above components are attached Pilot Does Not Light With air in the gas line such as when the furnace is first installed or was OFF all summer the pilot flame may be too lean to ignite on the first few trials Turn the gas control knob to PILOT position and
26. liance General Information This series is design certified in accordance with American National Standard CSA Standard Z21 86 and CSA 2 32 by the Canadian Standards Association as a Vented Wall Furnace and must be installed according to these instructions Any alteration of the original design installed other than as shown in these instructions or use with a type of gas not shown on the rating plate is the responsibility of the person and company making the change Important All correspondence should refer to complete Model No Serial No and type of gas Notice During initial firing of this furnace its paint will bake out and smoke will occur To prevent triggering of smoke alarms ventilate the room in which the furnace is installed Installation in Residential Garages Gas utilization equipment in residential garages shall be installed so that all burners and burner ignition devices are located not less than 18 457mm above the floor Such equipment shall be located or protected so it is not subject to physical damage by a moving vehicle Qualified Installing Agency Installation and replacement of gas piping gas utilization equipment or accessories and repair and servicing of equipment shall be performed only by a qualified agency The term qualified agency means any individual firm corporation or company which either in person or through a representative is engaged in and is responsible for a the installati
27. lue To reset the manual reset vent safety switch 1 Remove outer casing 2 Depress manual reset button The manual reset vent safety switch is located on the draft diverter 3 Replace outer casing If the manual reset vent safety switch continues to shut off the gas flow to the main burner a qualified service person must be contacted to inspect for improper venting blockage in the vent pipe or the manual reset vent safety switch for being defective VENT SAFETY L WIRES FOR THERMOSTAT Figure 8 PROPER MAIN BURNER FLAME The correct flame will be a short blue inner flame with a much larger light blue outer flame The burner does not have a primary air adjustment The flame will be proper if the factory set pressure and orifice are used After the furnace has begun operating cleaning of the burner may be needed for proper flame examine at least 2 times per season To clean burner ports disconnect the gas supply to the valve Remove the burner assembly from the combustion chamber Remove pilot burner from main burner and then remove the main burner Force water into the ports and blow dry with vacuum cleaner air or low pressure compressed air EXCHANGER TUBE MM PRIMARY AN LT FLAME VL Figure 9 PROPER PILOT FLAME The correct flame will be blue extending past the thermopile The flame will surround the thermopile
28. n gas control knob counterclockwise to NOTE Knob cannot be turnedfrom PILOT to OFF ON unless knob is pushed in slightly Do not force Replace control access panel control Wait ten 10 minutes to clear out any gas door Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information above If you don t smell gas go to the next step Turn on all electric power to the appliance if applicable Set thermostat to desired setting SE TO TURN OFF GAS TO APPLIANCE BE 1 Set the thermostat to lowest setting 4 Push in gas control knob slightly and turn 2 Turn off all electric power if applicable to clockwise to OFF Do not force appliance if service is to be performed 5 Replace control access panel control door 3 Remove control access panel control door Page 12 12426 4 0104 VENT SAFETY SHUTOFF SYSTEM This appliance must be properly connected to a venting system This appliance is equipped with a vent safety shutoff system Warning Operation of this wall furnace when not connected to a properly installed and maintained venting system or tampering with the vent safety shutoff system can result in carbon monoxide CO poisoning and possible death This furnace is equipped with a manual reset vent safety switch The manual reset vent safety switch will cause gas flow to the main burner to shut off due to improper venting or a blocked f
29. o the header plate One header extension is welded to the header plate and one header extension is screwed to the header plate To install header plate into wall Page 8 opening remove the header extension that is screwed to the header plate 2 screws Insert header plate with attached 4 oval double wall vent pipe into wall opening Position header plate at height shown in Figure 2 Locate rear edge of nailing flange at the back of the 2 x 4 stud which will center the vent collar in the wall Locate the angled edge of header plate flush with the top of the wall opening Nail header plate to the wall studs Replace and attach header extension onto header plate with 2 screws 12426 4 0104 il L 115 VOLT OUTLET BOX FOR OPTIONA HARDWIRING OF i OPTIONAL BLOWER 5 EA eh or FT HEADER PLATE NAILING FLANGE 2 1 4 158cm Lia 2 36 807 el EF 2 X 4 FLOOR PLATE Figure 2 B VENT WITH BW ADAPTOR 3 GASKET FOR HEADER ASSEMBLY P HEADER PLATE 68cm M2 X 4 STUDS Se pee 2 X 4 FLOOR PLATE FINISHING INSTRUCTIONS Plastering Figure 4 In new construction use only plain not perforated gypsum lath around furnace and vent pipe so that plaster Keys will not project into wall space Use wood strips nailed to inside of studs and top of bottom plate These must be removed before installation of furnace Lath and plaster against top projection of Header Plate
30. on Use outside clearance holes on outer casing top for attachment to header with two 2 8 x 3 8 Phillips screws when optional blower is installed 3 Align clearance holes on outer casing bottom with screw holes on casing brackets by adjusting slots on casing brackets 4 Complete tightening casing bracket screws from Step I to inner casing at this time 5 Attach outer casing to casing brackets with two 2 10 x 1 1 2 screws INSTALLING CONTROL DOOR Attach two washers supplied in hardware package to pivot pins located at bottom of control door Install control door to outer casing assembly CASING BRACKET OUTER CASING Figure 6 Page 10 12426 4 0104 THERMOSTAT LOCATION SG MODELS CAUTION Do not run wire behind flanges of Header Plate Connect thermostat wires to gas valve as shown in Figure 7 or in any location where it might be damaged TO VENTSAPEN Millivolt wall thermostats are specially designed for use on self generating systems They should never be used on line or low voltage A C circuits Interior Wall The thermostat should be installed on an inside wall away from the furnace but in the same room TO THERMOPILE Note Use 16 gauge wire to prevent excessive loss of milli volts Proper operation depends on a good pilot flame The flame must cover the top of the thermopile Cleaning of the pilot orifice and burner may be required due to spi
31. on or replacement of gas piping or b the connection installation repair or servicing of equipment who is experienced in such work familiar with all precautions required and has complied with all the requirements of the authority having jurisdiction State of Massachusetts The installation must be made by a licensed plumber or gas fitter in the Commonwealth of Massachusetts The installation must conform to local codes or in the absence of local codes with the National Fuel Gas Code ANSI Z223 1 NF PA 54 Natural Gas and Propane Installation Code CSA B149 1 Available from the American National Standards Institute Inc 11 West 42nd St New York N Y 10036 High Altitudes For altitudes elevations above 2 000 feet 610m input ratings should be reduced at the rate of 4 percent for each 1 000 305m feet above sea level Canadian High Altitudes for locations having an elevation above mean sea level between 2 000 feet 610m and 4 500 feet 1370m the manifold pressure is to be decreased from 3 5 w c 87 1 kPa to 3 0 w c 747kPa for Natural Gas and from 10 0 w c 2 49kPa to 8 0 w c 1 992kPa for Propane Gas SPECIFICATIONS GWT 50 50 000 14 7 66 1 8 168cm 16 406mm 6 152mm 1 2 4 102mm Vent Pipe Type B Oval 0 Blower Package GWT 50 SG RB is a DUAL WALL Furnace Warmed air is discharged into two rooms which share a common wall
32. ping accessible for test gauge connection is located on the outlet side of the gas control Page 7 CLEARANCES 1 In selecting a location for installation it is necessary to provide adequate accessibility clearances for servicing and proper installation 2 Clearances to combustible surfaces are 4 102mm from sides 12 305mm to top 1 2 38mm from floor NOTE Minimum distance of I 1 2 38mm must also be maintained from top surface of carpeting tile etc VENTILATION AND COMBUSTION AIR Wall furnaces shall be installed in a location in which the facilities for ventilation permit satisfactory combustion of gas and proper venting under normal conditions In buildings of conventional frame brick or stone construction without tight storm windows and doors infiltration is normally adequate to provide air for combustion and draft hood dilution Where appliances are installed in confined and unconfined spaces within a building the building being of unusually tight construction air for combustion and ventilation must be obtained directly from outdoors or from such spaces that freely communicate with the outdoors Under these conditions the confined and unconfined spaces shall be provided with two permanent openings one near the top of the enclosure and one near the bottom each opening shall have a free area of not less than one square inch 6 45cm per 2 000 BTU 6KW H per hour of total input LOCATION ALL MODEL
33. pliance Do not use this appliance if any part has been under Do not touch any electrical switch water Immediately call a qualified service techni do not use any phone in your building cian to inspect the appliance and to replace any part e Immediately call your gas supplier from a neighbor s of the control system and any gas control which has eee LIGHTING INSTRUCTIONS e 1 STOP Read the safety information above 7 Find pilot follow metal tube from gas control The pilot is mounted on front of main burner PI Set the thermostat to lowest setting BU Turn off all electric power to the appliance if appli cable Turn gas control knob coun terclockwise 4Nto PILOT Remove control access panel control door Pach in contr l knob all the Push in gas control knob slight way and hold in Immediately light the pilot with a ly and turn clockwise to OFF match Continue to hold the control knob in for about one 1 minute after the pilot is lit Release knob and it will pop back up Pilot should remain lit If it goes out repeat steps 5 through 9 If knob does not pop up when released stop and immediately call a qualified service technician or gas supplier e If the pilot will not stay lit after several tries turn the gas control knob to OFF and call your GAS CONTROL KNOB SHOWN IN OFF POSITION service technician or gas supplier Tur
34. ty switch To prevent PROVIDED delayed venting as well as condensation of flue products an insulated vent enclosure is recommended Use Type B vent pipe and maintain at least a one inch 25mm clearance to combustibles Use metal thimble to protect vent pipe as it passes through combustibles Baseplate Gasket is factory installed on header Baseplate attaches to header with screws B vent snaps into and is attached to baseplate Minimum height of vent pipe must be six feet 1 8m above header Stud space around gas vents must be free of obstructions and building paper Uninsulated Single Wall Metal Pipe shall not be used outdoors in cold climates for venting gas utilization equipment Attention The main burner uses room air for combustion As the gas air mixture is injected into the main burner there is also the flow of dust and lint particles into the main burner Dust and lint accumulation inside the main burner will result in a yellow main burner flame and possible sooting inside the combustion chamber and vent pipe To clean main burner refer to Page 13 Proper Main Burner Flame Page 6 12426 4 0104 GAS SUPPLY Check all local codes for requirements especially for the size and type of gas supply line required Recommended Gas Pipe Diameter Pipe Length Schedule 40 Pipe Tubing Type L Feet Inside Diameter Outside Diameter Nat L P Nat LE 0 10 1 2
35. u should assume you have a leak Then take the same immediate action recommended above for the occasion when you do detect the odorized LP Gas If you experience a complete gas out the container is un der no vapor pressure turn the tank valve off immediately If the container valve is left on the container may draw in some air through openings such as pilot light orifices If this occurs some new internal rusting could occur If the valve is left open then treat the container as a new tank Always be sure your container is under vapor pressure by turning it off at the container before it goes completely empty or having it refilled before it is completely empty 12426 4 0104 INTRODUCTION Introduction Vented wall furnace is shipped ready to install in a 2 x 4 stud wall with studs 16 406mm center to center Always consult your local Building Department regarding regulations codes or ordinances which apply to the installation of a vented wall furnace Instructions to Installer 1 Installer must leave instruction manual with owner after installation 2 Installer must have owner fill out and mail warranty card supplied with furnace 3 Installer should show owner how to start and operate furnace and thermostat Warning Any change to this furnace or its control can be dangerous This is a heating appliance and any panel door or guard removed for servicing an appliance must be replaced prior to operating the app
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