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Rheem Professional Classic Plus Series: Heavy Duty Power Direct Vent Use & Care Manual
Contents
1. Inside corner Electric Gas service meter 3 ft 91 cm Mechanical Air Supply T 1 ft 30 cm Minimum 6 ft 1 8 m 30 cm Above grade Minimum 18 in 45cm 30 cm 1 ft Non Mechanical Air Supply Combustion Air Inlet Terminal Vent Terminal where it may cause hazardous frost or ice accumulations on adjacent property surfaces less than 7 ft 2 1 m above a paved sidewalk or a paved driveway that is located on public property within 6 ft 1 8 m of a mechanical air supply inlet to any building above a regulator within 3 ft 900 mm horizontally of the vertical centerline of the regulator vent outlet to a maximum vertical distance of 15 ft 4 5 m except as required by CAN CSA B149 1 Natural gas and Propane Installation Code any distance less than that of any gas pressure regulator vent outlet as detailed less than ft 300 mm above average snowfall or grade level reference CAN CSA B149 1 Natural gas and Propane Installation Code within 12 in 300 mm of a window or door that can be opened in any building of
2. oe ee a a g amp 56 000 Btu hr 29 40 l Models 4 8 25 0 3 J9Ebows 75Galo75100 3 8 258 350 is 90 Elbows amp 70 000 Buh 3 8 25 P w 10 J Cenentic Modes 34 8 25 100 30 90 Elbows E From 2 000 ft 609 m Above Sea Level through 5 999 ft 1 828 m Above Sea Level Vent amp Min Allowed Equivalent Max Allowed Equivalent Combustion Vent amp Combustion Air Vent amp Combustion Air Air Inlet System Inlet Lengths Each Pipe Inlet Lengths Each Pipe Vent and Combustion Diameter Run Run Air Inlet System Termination Models 90 Elbows EE ascona 3 s 25 o s NIN Concentric Modes 4 e 25 100 30 oo Ewo 3 75Gallon 75 100 L3 8 25 2s 90 Elbows FT amp 70 000Btwh 3 8 25 20 6 Conconi Models 4 8 25 10 30 90 Elbows Use only Rheem 3 in 7 6 cm concentric termination 17 Installing the Water Heater Direct Vent Terminal Clearances Vent Terminal Air Supply Inlet N Area Where Terminal Is Not Permitted Canadian Installations A Clearance above grade veranda porch deck 1ft 30 cm or balcony B Clearance to window or door that may be 1 ft 30 cm for appliances gt 10 000 Btuh 3 kW opened C Clearance to permanently closed window 1 ft 30 cm D Vertical clearance to ventilated soffit located 2 ft 61 cm above the terminal E Cle
3. Installing the Water Heater Inside of Building Vent System 3 in 7 6 cm E Outside of Building 2 ft x 2 ft 60 cm x 60 cm Sheet Metal Shield on Brick or Masonry Walls Rear of Rain Cap Flush with Outside of Wall 3 in 7 6 cm 90 Street Elbow Raise horizontal pipe upwards 1 8 in per foot 10 mm per m min See Condensate Management Section for additional information about optional piping Outside of Building Inside of Building Rear of Rain Cap Combustion Air Inlet System 3 in 7 6 cm Optional Condensate C Management Drain 5 A Port y Horizontal Vent Concentric Terminal Installation Vent System 3 in 7 6 cm Raise horizontal pipe upwards 1 8 in per foot 10 mm per m min System 3 in 7 6 cm Optional Condensate Management Drain Port Alternate Horizontal Vent Concentric Terminal Installation 24 Combustion Air Inlet Flush with Outside of Wall 3 in 7 6 cm 90 Street Elbow pes ft x 2 ft 60 cm x 60 cm Sheet Metal Shield on Brick or Masonry Walls Raise horizontal pipe upwards 1 8 in per foot 10 mm per m min See Condensate Management Section for addition information about optional piping Vertical Vent and Combustion Air Inlet Installation The location of the vent and combustion air inlet terminals depends on the following mini mum clearances and considerations 1 2 3
4. access 1 e vent window etc Minimum 18 in 46 cm exposed pipe above roof Maximum 2 ft 61 cm exposed pipe above roof level without additional support for vent Four 4 ft 1 22 m from any gable dormer or other roof structure with building interior Within 6 ft 1 8 m of mechanical air supply inlet 5 Maintain a minimum horizontal distance of 12 in 30 5 cm between the vent and combustion air inlet terminal centerlines Read these instructions thoroughly and make sure you understand all steps and procedures before proceeding with the installation Determine the locations for the vent and com bustion air inlet terminals then make two 2 holes through the roof and interior ceiling s to accommodate the vent and combustion air inlet pipes e Maintain a minimum horzontal distance of 12 in 31 cm between the vent and com bustion air inlet terminals Assemble the vent pipe assembly Install the vent system and attach it to the vent connector fitting on the water heater s blower assembly e Horizontal lengths of the vent system must slope towards the water heater a minimum of 1 8 in per foot 10 mm per m Install the combustion air inlet system and attach it to the combustion air inlet connector fitting on the water heater s combustion air inlet tube assembly e Support vertical and horizontal lengths of the vent and combustion air inlet systems as previously mentioned Determine the vent a
5. 61 cm above roof level without additional support for vent 3 access i e vent window etc Four 4 ft 1 22 m from any gable dormer or other roof structure with building interior 4 six 6 ft 1 8 m of a mechanical air supply inlet Read these instructions thoroughly and make sure you understand all steps and procedures before pro ceeding with the installation Determine the location for the concentric terminal then make a 5 in 12 7 cm a hole through the roof and interior ceiling s to accommodate the terminal vent and combustion air inlet system pipes and install a weather seal boot flashing not supplied for 4 1 2 in 12 4 cm PVC pipe The concentric terminal assembly is designed to accept 3 in 7 6 cm diameter pipe If2 in 5 1 cm diameter pipe is used e Then either 2 in x 3 in 5 1 cm x 7 6 cm pipe increasers Or flush bushings must be installed to the vent and combustion air inlet connections of the ter minal assembly e DO NOT use the concentric terminal assembly with 4 in 10 2 cm vent and combustion air inlet systems Disassemble the concentric terminal assembly e Note The concentric terminal assembly con sists of an inner straight vent pipe an outer straight combustion air inlet pipe a Wye fitting and rain cap From inside the building insert the outer straight combustion air inlet pipe through the weather seal boot flashing so that the height from the roof to the
6. Error in the hot surface ignitor circuit 1 Check that all wiring is correct and secure eoeoee 2 Replace hot surface ignitor V ABC System in lockout 1 Gas supply is off or too low to operate Turn on the eooeeo gas supply and or increase the inlet gas supply pres sure 2 Hot surface ignitor not positioned correctly 3 Low voltage to the water heater Increase supply volt age to rated voltage 4 Electric polarity to unit is incorrect test and correct 5 Check the vent and or the combustion air inlet sys tems for obstructions W ABC Problem in the combination gas valve 1 Turn power to the water heater off for 10 seconds and 6 O O O e e driver circuit then back on 2 Replace the combination gas control thermostat V AB C Problem with the internal circuit 1 Turn power to the water heater off for 10 seconds and 000000 then back on 2 Replace the combination gas control thermostat V ABC Problem with the internal circuit 1 Turn power to the water heater off for 10 seconds and e e2eee0 then back on 2 Replace the combination gas control thermostat V ABC Flame signal sensed out of 1 Replace the combination gas control thermostat 000 O proper sequence V ABC ECO activated 1 Replace the combination gas control thermostat eooeee V ABC One of the temperature adjust Press and release each of the buttons once O 0 O buttons stuck closed 2 Replace the combination gas control thermo
7. Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING CAUTION For your safety DO NOT attempt repair of gas piping combination gas control thermostat burners vent and or combustion air inlet systems or other safety devices Refer repairs to qualified service personnel 42 Gas Valve LED Codes LED Status VABC eooeoo Problem An open earth ground circuit to the 1gnition system Solution 1 Check that the earth ground connection is properly connected 2 Check that the ground conductor on the water heater is properly connected V ABC Wiring error or a high resistance to 1 Check proper connection of line eoceoeo earth ground neutral and hot wires 2 Check that the water heater is securely connected to earth ground W ABC Pressure switch remained closed lon 1 Verify that the wiring to the pressure switch es is eoeooo er than 5 seconds after the call for correct eat began 2 Replace the pressure switch es W ABC Pressure switch remained opened lon 1 Verify that the wiring to the pressure switch es is O O O e gerthan 5 seconds after the combus COIT ct tion blower was energized m 2 Verify that the wiring to the pressure switch es is connected correctly 3 Check the vent and or combustion air inlet systems for obstructions V ABC
8. and cement the rain cap to the inner straight vent pipe e From the outside slide the vent pipe with rain cap assembly through the combustion air inlet pipe until the rear of the rain cap is flush with the outside wall e Clean and cement the rain cap to the combus tion air inlet pipe e Clean and cement a 3 in 7 6 cm diameter ULC S636 approved Schedule 40 PVC 90 street elbow to the rain cap From the inside clean and cement the wye fit ting to the vent and combustion air inlet pipes of the termination assembly Complete the installation of the remainder of the vent system and attach it to the vent connector fitting on the water heater s blower assembly IMPORTANT Raise all horizontal sections upwards a minimum of 1 8 in per foot 10 mm per m DO NOT use unequal diameters of pipe and fittings for the vent and combustion air inlet systems except as defined previously NOTICE The difference between the vent and combustion air inlet system equivalent lengths must be no greater than 5 ft 1 5 m Complete the installation of the remainder of the combustion air inlet system and attach it to the combustion air inlet connector fitting on the wa ter heater s combustion air inlet tube assembly Support vertical and horizontal lengths of the vent and combustion air inlet systems as previ ously mentioned IMPORTANT Ensure that all the coupling clamps are tight before allowing the water heater to operate 23
9. any nonmechanical air supply inlet to any building or of the combustion air inlet of any other appliance underneath a veranda porch or deck unless the veranda porch or deck is fully open on a minimum of two sides beneath the floor and the distance between the top of the vent termination and the underside of the veranda porch or deck is greater than 1 ft 300 mm Vent Terminal Location Considerations T DO NOT install the vent terminal under any patio or deck 2 To help prevent moisture from freezing on walls and under eaves do not SER locate the vent terminal on the side of a building with prevailing winter ED ow NES Rising moisture will 3 When terminating the vent and combustion air inlet pipes through brick collect under eyes or masonry surfaces the installation of a rust resistant sheet metal IF soffit vent is too close backing plates behind the vent and combustion air inlet terminals are T o a recommended nside Caulk guid g DO NOT locate the vent terminal too close to shrubbery as flue gasses 12 in 30 5 cm may damage them min above grade or 6 ft 1 8 m Caulk zone of Pee anticipated snow level or to edge af window etes 5 Caulk all cracks seams and joints within 6 ft 1 83 m of the vent and aici aca M combustion air inlet terminals Q 6 Insulate vent pipe exposed to cold conditions attics crawl spaces etc BEJA xw with inflammable material to help prevent moisture from accumulating 122m vent et in the v
10. center of 3 Dual wa Strips the water heater ensuring that it is aligned cor rectly and properly positioned on top of the water heater Press firmly to ensure proper attachment is made Align holes in mounting tabs on the Top Cap with the holes in the top of the heater then secure the Top Cap to the water heater with the two 2 8 sheet metal screws supplied IMPORTANT Do not over tighten the screws as this may damage the Top Cap Top Cap View 2 screws mounting tabs Outside Inside Center Front During Installation of this water heater DO 4 DO check inlet gas pressure to ensure that it is within the range specified on the rating plate 1 DO maintain proper clearances to combustibles as specified on the rating plate 1 DO allow enough time for joint cement vapours to dissipate BEFORE applying power to the water heater 1 DO ensure that the venting system complies with the guidelines found in the Use and Care Manual and in the CAN CSA B149 1 Natural Gas and Propane Installation Code DO contact a qualified service technician if the main burner will not stay lit The burner cham ber is designed to be sealed utilizing a gasket and tamper resistant screws Burner Access Door Grommet 32 Flammable Vapour Sensor Sight Glass DON T D DON T block or restrict the Flammable Vapour Sensor located around the lower portion of the water heater jacket 1 DO
11. cm to 4 in 10 2 cm diameter ULC S636 approved pipe increaser fitting See Figure 4 For the vent terminal e Use a 4 in 10 2 cm diameter Schedule 40 PVC 90 1 4 standard bend ULC S636 approved elbow To connect the combustion air inlet system pip ing e Install a straight length of 3 in 7 6 cm diameter pipe to the combustion air inlet piping tee coupling e Followed by a 3 in 7 6 cm to 4 in 10 2 cm diameter pipe increaser fitting See Figure 4 For the combustion air inlet terminal e Use a 4 in 10 2 cm diameter Schedule 40 PVC 90 1 4 standard bend elbow DO NOT use unequal diameters of pipe and fittings for the vent and combustion air inlet systems except as defined previously NOTICE The difference between the vent and combustion air inlet system equivalent lengths must be no greater than 5 ft 1 5 m IMPORTANT Ensure that all the coupling clamps are tight before allowing the water heater to operate When using CPVC pipe and fittings e Use a 90 ULC S636 approved elbow of the corresponding size and material for the vent terminal e Use a 90 CPVC elbow for the combustion air inlet terminal elbows The vent and combustion air inlet terminals of the water heater must be installed in the same atmospheric pressure zone The minimum and maximum equivalent lengths for the vent and combustion air inlet systems are shown in Table 2 e Maintain a minimum vertical height
12. in death or serious injury A WARNING A potentially hazardous situation that could result in death or serious injury and or damage to property A CAUTION A potentially hazardous situation that may result in minor moderate injury NOTICE Attention is called to observe specified procedure or maintain a specific condition IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING Be sure to read and understand the entire Use and Care Manual before attempting to install or operate this water heater It may save you time and money Pay particular attention to the Safety Instructions Failure to follow these warnings could result in serious bodily injury or death Should you have problems understanding the instructions in this manual or have any questions STOP and get help from a qualified service technician or the local gas utility NOTICE This water heater is equipped with a flammable vapour sensor that will automatically shut down the water heater in the presence of gasoline vapours and some other flammable vapours If the flammable vapour sensor shuts down the water heater contact a qualified service technician Clear any hazardous materials and ventilate the area around the water heater Do not turn off the appliance or adjust the ON OFF switch in any way Do not tamper with the flammable vapour sensor Do not submerse the flammable vapour sensor in water Do not allow the flammable vapour sensor to come into contact with any sub
13. lic for external use on gas water heaters are not necessary The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank heaters This water heater meets or exceeds the National Appliance Energy Conservation Act standards with respect to insu lation and standby loss requirements making an insulation blanket unnecessary The manufacturer s warranty does not cover any damage or defect caused by installation attachment or use of any type of energy saving or other unapproved devices other than those authorized by the manufacturer into onto or in conjunction with the water heater The use of unauthorized energy saving devices may shorten the life of the water heater and may endanger life and property The manufacturer disclaims any responsibility for such loss or injury resulting from the use of such unauthorized devices ACAUTION If local codes require the application of an external insulation blanket to this water heater pay careful attention to the following so as not to restrict the proper function and operation of the water heater DO NOT cover the operating or warning labels attached to the water heater or attempt to relocate them on the exterior of insulation blanket DO NOT apply insulation to the top of the water heater This will interfere with the safe operation of the blower assembly DO NOT cover the burner access door jacket door combination gas control thermostat
14. or pressure and temperature relief valve DO NOT apply insulation to the area where the Flammable Vapour Sensor is located This area must be unobstructed so as not to restrict air flow to the sensor Inspect the insulation blanket frequently mak ing certain it has not sagged and it is not restrict ing the air flow to the Flammable Vapour sensor located around the lower perimeter of the water heater jacket This could result in an unsafe operating condition Hot and Cold Pipe Insulation Installation Typical vertical piping arrangement For increased energy efficiency some water heaters have been supplied with two 24 in 61 cm long sections of pipe insulation T amp P Insulation Installation Typical horizontal piping arrangement Piping for Top Cap NOT shown Please install the insulation according to the illustrations above that best meets your requirements For increased energy efficiency this water heater has been supplied with a 2 3 8 section of T amp P insulation Please install the insulation as shown below Slip the insulation cover over the T amp P Valve through the center hole and align the hole in the side with the opening of the T amp P Valve Typical Side Connect T amp P Arrangement Slip the insulation cover over the T amp P Valve through the center hole and align the hole in the side with the opening of the T amp P Valve Typical Top Connect T amp P Arrangement 31 En
15. provided DO NOT use an extension cord A ground ing receptacle is required WIRE HARNESS THAT RUNS FROM BLOWER ASSEMBLY i TO WIPER CONTROL GAS VALVE 1 FAISCEAU DE CABLAGE ENTRE L ENSEMBLE DU 1 SOUFFLEUR ET LA INTELLI VENT DE LA SOUPAPE DE H CONNECTOR DIAGRAM SCHEMA DES CONNEXIONS ON OFF SWITCH CONTACTEUR 120 VAC PLUG FOR POWERVENT MARCHE ARR T BLOWER ASSEMBLY H BK I PRISE DE 120 VCA POUR G I 1 L ENSEMBLE DE N l SOUFFLEUR D VENT M CHANIQUE J i pereen tese enar ANAE URN TEMPERATURE VAC VAC I SWITCH NC SWNO SWNC i I BLOWER CHANGEMENT DE CONTACTEUR 1 SOUFFLEUR TEMP RATURE DEPRESSION 1 1 I POWER SCREW A A j VENT BLOWER GND VIS M i 1 ASSEMBLY DE MISE i I ENSEMBLE DU N LA TERRE wek RI YEL o 1 SOUFFLEUR 1 D VENT Oe 3 23456 1 M CANIQUE 6 PIN CONNECTOR r 1 CONNECTEURA 1 12345 6 PO ACHETER 4 6 BROCHES i FLAMMABLE IGNTERAND W BK i VAPOR SENSOR FLAME SENSOR D TECTEURDE ALLUMEURET VAPEUR CAPTEURDE 1 i INFLAMMABLE F 1 E amp 1 s gt 1 1 ES zw T 3 Ob i oz i w OW i wo 2g f 2u Oz 1 1 a Z L 1 lt q FO 1 Sk oc 92 ur O um oo Wu 1 5a I mw 25 JE Bs zo i I I 1 ANY REPLACEMENT IGNITOR CABLE MUST BE RATED AT 250 C TOUT CABLE D ALLUMAGE DE REMPLACEMENT DOIT ETRE TALONN A 250 C LCONTROLEDUGAZ e J The water heater must be electrically ground
16. rear of the rain cap when installed is as specified in the diagram NOTICE The concentric terminal assembly may be reduced in length as follows e Measure for desired installation length then cut the outer straight combustion air inlet pipe accordingly but not less than 12 in 30 em e Measure and cut the straight inner vent pipe of the concentric terminal assembly so it is 13 in 5 1 cm longer in length than the outer straight combustion air inlet pipe e Ensure that there is no insulation or debris in the pipe Assemble the vent pipe assembly e Clean and cement the rain cap to the inner straight vent pipe From the outside slide the vent pipe with rain cap assembly through the combustion air inlet pipe until the rain cap if fully seated on the pipe e Clean and cement the rain cap to the combustion air inlet pipe e Clean and cement a 3 in 7 6 cm diameter ULC S636 approved Schedule 40 PVC 90 street elbow to the rain cap e Clean and cement a short straight section of 3 in 7 6 cm diameter ULC 636 approved straight pipe to the 90 street elbow e Clean and cement a 3 in 7 6 cm diameter Schedule 40 PVC 90 1 4 standard bend ULC S636 approved elbow to the short straight sec tion of pipe From the inside clean and cement the wye fitting to the vent and combustion air inlet pipes of the termination assembly Complete the installation of the remainder of the vent system and attach it
17. to the vent connector fit ting on the water heater s blower assembly e Horizontal lengths of the vent system must slope downward toward the water heater a minimum of 1 8 in per foot 10 mm per m 27 Installing the Water Heater Vertical Vent Alternate Concentric Terminal Installation continued DO NOT use unequal diameters of pipe and fittings for the vent and combustion air inlet systems except as defined previously NOTICE The difference between the vent and combustion air inlet system equivalent lengths must be no greater than 5 ft 1 5 m Complete the installation of the remainder of the combustion air inlet system and attach it to the combustion air inlet connector fitting on the water heater s combustion air inlet tube assembly Support vertical and horizontal lengths of the vent and combustion air inlet systems as previously men tioned Short Piece of Pipe 3 in 7 6 cm 90 Street Elbow Min 18 in 46 cm Above Roof and Max 24 in 61 cm Above Roof Without Additional Support Optional Condensate Management Drain Port Concentric Vent and or Combustion Air Inlet Pipe Through Roof IMPORTANT Ensure that all the coupling clamps are tight before allowing the water heater to operate A WARNING Do not operate the water heater with the rain cap and elbows removed or recirculation of combustion products may occur and or the vent and combustion air inlet systems could take in wat
18. vapours and liquids such as adhesives or paint thin ner in vicinity of this or any other appliance If such flammables must be used open doors and windows for ventilation and all gas burning appliances in the vicinity should be shut off includ ing their pilot burners to avoid vapours lighting NOTICE Flammable vapours can be drawn by air currents from surrounding areas to the water heater F If there is any difficulty in understanding or follow ing the Operating Instructions or the Care and Cleaning section it is recommended that a qualified person or serviceman perform the work Operating Procedure This water heater is equipped with a hot surface ignitor to light the main burner There is no pilot light to be lit but on initial start up it is recommended that the outer door be removed leave inner door in place for safety to view through the sight glass if the hot surface ignitor and main burner are operating properly Once filled with water it is only neces sary to plug the power cord in and make sure the ON OFF switch located on the blower assembly is in the ON position to put the water heater into operation Within seconds the hot surface ignitor should heat Water Temperature Setting The temperature of the water in the water heater can be regulated by pressing the buttons on the front of the combination gas control thermostat Safety and energy conservation are factors to be considered wh
19. vary from the instructions or diagrams provided in this manual and take precedent over these instructions Hot water t supply to house Hot water supply to From HOT heating outlet on unit water heater Tee fitting for vertical hot water supply lines Hot water Fr Mun Ve supply to u Mu water heater oS gt Hot water supply to heating unit Tee fitting for horizontal hot water supply lines Combination Potable Water and Space Heating Application Tee fitting must be installed as shown This ensures that any air in the water lines will be purged through the domestic water faucets and showers ADANGER When this system requires water for space heating at elevated temperatures above 125 F 52 C a mixing or tempering valve must be installed in the hot water supply line to the house in order to reduce the scald hazard potential ADANGER Any piping or components used in the installation of this water heater in a combination potable and space heating application must be suitable for use with drinking water ADANGER If this water heater is installed in an application intended to supply domestic hot water needs and hot water for space heating purposes do not connect the heater to an existing heating unit or components of a heating system that have previously been used with a non drinking water system Toxic chemicals such as those used for boiler treatment may be pre
20. 3 m equivalent vent system length from the blower assembly must be of ULC S636 approved CPVC pipe and fittings Use only ULC S636 approved CPVC pipe and fittings for the vent system if the water heater is to be installed in a location where it may be subjected to ambient temperatures above 100 F 38 C Vent and combustion air inlet systems must be adequately supported along both vertical and horizontal lengths 11 Installing the Water Heater Vent and Combustion Air Inlet continued NOTICE This unit is equipped with a Flammable Vapour Sensor Do not supply electrical power to the water heater until enough time has passed to allow the vapours from the primer and cement to dissipate 12 Ambient Installation Temperatures and Vent System Material Specifications Up to 100 F 38 C 100 F 38 C to 125 F 52 C 0 to 10 ft 10 ft to Max 0 to 10 ft 10 ft to Max 0 to 3 m 0 m to Max 0 to 3 m 0 m to Max Equivalent Vent Equivalent Vent Equivalent Vent Equivalent Vent Models System Length System Length System Length System Length 40 Gallon 40 000 amp 38 000 Btu hr Models 50 Gallon 40 000 Btu hf Models PVC or CPVC 65 Gallon 65 000 amp 56 000 Btu hr Models SENG BS EEN 50 Gallon 65 000 amp 47 000 Btu hr Models CPVC PVC or CPVC 75 Gallon 75 100 amp 70 000 Btu hr Models NOTE This water heater may be installed in attics provided ambient temperatures do n
21. Brampton Ontario L6Y OP5 Technical Support 1 800 432 8373 Warranty 1 800 263 8342 When contacting the manufacturer the following information will be requested a m5 0 c Oo c Model and serial number of the water heater as shown on the rating plate attached to the jacket of the heater Address where the water heater is located and physical location Name and address of installer and any service agency who performed service on the water heater Date of original installation and dates any service work was performed Details of the problems as you can best describe them List of people with dates who have been contacted regarding your problem 48
22. CATION 6665666z COOLER Q e HOTTER A warna Burns on Adult Skin 120 F 49 C More than 5 minutes 125 F 52 C 1 to 2 minutes 130 F 54 C About 30 seconds 135 F 57 C About 10 seconds 140 F 60 C Less than 5 seconds 145 F 63 C Less than 3 seconds 150 F 66 C About 1 2 seconds 155 F 68 C About 1 second Table courtesy of Shriners Burn Institute WARM approx 70 F 21 C 0000o0o V approx 120 F 49 C O08 000 More than 5 minutes A approx 130 F 54 C Ooooeoo About 30 seconds B approx 140 F 60 C Ooooeo Less than 5 seconds C approx 150 F 66 C Ooooooe About 1 1 2 seconds C Flashing approx 160 F 71 C C0000 e About 1 2 seconds 37 Care and Cleaning of the Water Heater 38 Sequence of Operation During initial start up or a call for heat the control will verify the vent vacuum switch is open Once the control verifies the vent vacuum switch is open the control will energize the blower motor for the pre purge sequence approximately 5 seconds The control will verify the vent vacuum switch has closed ensuring that the blower is functioning properly and that the venting system is not blocked The control will then proceed through a sequence of self diagnostics before initiating a trial for ignition During the trial for ignition the hot surface ignitor will warm up Once the hot surface ignitor warms up the m
23. ERVICE section of the manual Installing the Water Heater This water heater must be installed in accordance with these instructions local codes utility company requirements and or in the absence of local codes use the latest edition of CAN CSA B149 Natural Gas and Propane Installation Code A copy can be purchased from the Canadian Standards Association 5060 Spectrum Way Mississauga Ontario LAWSN6 Flammable Vapour Sensor S Diameter of water heater plus 2 in 5 1 cm min The auxiliary catch pan installation MUST conform to local codes if applicable NOTICE DO NOT allow the catch pan to obstruct the flammable vapour sensor NOTICE DO NOT allow the flammable vapour sensor to become submerged in water Make sure the catch pan is properly drained A WARNING Combustible construction refers to adjacent walls and ceilings and should not be confused with combustible or flammable products and materials Combustible and or flammable products and materials should never be stored in the vicinity of this or any gas appliance Location The water heater should not be located in an area where leakage from the tank or connections will result in damage to the area adjacent to the heater or to lower floors of the structure When such areas cannot be avoided it is recommended that a suitable catch pan adequately drained must be installed under the water heater The water heater must be cen
24. Li a Drain valve not supplied with water heater Isolation valve in cold water return line from heating unit not supplied with water Pressure Gauge 3 4 Check Valve with 1 8 Hole 3 4 Shut Off Valve Typ 3 lt 3 4 cold water supply cy 0 T 3 4 Shut Off Valve Typ 6 in 15 2 cm Min 2 Gallon Thermal Expansion Tank if required not supplied with water heater ot water to space heater I Hot water coil All bronze pump dla valve internal in pump LI Air bleed valve Water Sample Tap To HVAC Unit FAN ON OFF HEAT COOL Air Handler 3 4 HWS amp HWR to Heating Coil Lighting the Water Heater Before operating this water heater be sure to read and follow the instructions on the label pictured below and all other labels on the water heater as well as the warnings printed in this manual Failure to do so can result in unsafe operation of the water heater resulting in property damage personal injury or death Should you have any problems reading or following the instructions in this manual STOP and get help from a qualified person FOR YOUR SAFETY READ BEFORE OPERATING A WARNING If you do not follow these instructions and the Use amp Care Manual instructions exactly a fire or explosion may result causing property damage personal injury or loss of life A This appliance does not have a pilot It is equipped with an ignition device which auto matically
25. N T remove the Burner Access Door unless absolutely necessary This should only be done by a qualified service technician A new burner access door gasket must be installed on any burner access door that has been removed 1 DON T install this water heater where standing water may occur The base of the water heater is meant to be mounted on a dry surface A DON T allow cleaners solvents or other materials to come into contact with the Flammable Vapour Sensor 1 DON T operate the water heater if the sight glass or burner access door grommet is damaged or broken Installation Checklist A Water Heater Location J In a location where the vent and combustion air inlet systems will be within the requirements specified in this manual Indoors and protected from freezing tempera tures L Proper clearance from combustible surfaces observed and water heater not installed on car peted floor 1 Air supply free of corrosive elements and flam mable vapours B Water Supply L Water heater completely filled with water J Air purged from water heater and piping C Gas Supply J Gas line equipped with shut off valve union and sediment trap CL Approved pipe joint compound used D Relief Valve L Temperature and Pressure Relief Valve properly installed and discharge line run to open drain 1 Water Heater vented separately from all other appliances Blower assembly properly installed L Prope
26. Rheem Canada Use amp Care Manual With Installation Instructions for the Installer Residential Gas FVIR Certified PowerbDirect Vent Water Heaters Residential 40 50 65 amp 75 Gallon Models The purpose of this manual is twofold one to provide the installer with the basic directions and recommendations for the proper installation and adjustment of the water heater and two for the owner operator to explain the features operation safety precautions maintenance and troubleshooting of the water heater This manual also includes a parts list It is very important that all persons who are expected to install operate or adjust this water heater read the instructions carefully so they may understand how to perform these operations If you do not understand these instructions or any terms within it seek professional assistance Any questions regarding the operation maintenance service or warranty of this water heater should be directed to the seller from whom it was purchased If additional information is required refer to the section on If you need service Do not destroy this manual Please read carefully and keep in a safe place for future reference A Recognize this symbol as an indication of Important Safety Information A WARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or death A FOR YOUR SAFETY I
27. WARNING For your safety the information in this manual must be followed to minimize the risk of fire or explosion electric shock or to prevent property damage personal injury or loss of life SAFETY PRECAUTIONS Have the installer show you the location of the gas shut off valve and how to shut it off 1f necessary Turn off the manual shut off valve if the water heater has been subjected to overheating fire flood physical damage or if the gas supply fails to shut off Read this manual entirely before installing DO NOT attempt to repair or replace or operating the water heater any part of your water heater unless it is specifically recommended in this manual All other servicing should be referred to a qualified technician Use this appliance only for its intended purpose as described in this Use and Care Manual Be sure your appliance is properly installed in accordance with local codes and the provided installation instructions READ AND FOLLOW THIS SAFETY INFORMATION S CAREFULLY SAVE THESE INSTRUCTIONS IMPORTANT Carefully inspect the water heater for damage before proceeding with the installation Of specific interest should be any dents in the long blue cover panel for the combustion air inlet PVC pipe or damages to the blower and the combustion air inlet PVC pipe assembly If you find damage DO NOT install or attempt any repair to the water heater Contact the manufacturer as detailed under IF YOU NEED S
28. ain gas valve will open allowing gas to flow to the main burner Once the main burner ignites the control will verify that the burner flame is present through the flame sense circuit The hot surface ignitor will then turn off The main burner will remain lit throughout the heat cycle until the water temperature setting is reached Once the water temperature setting is reached the control will close the main gas valve which will extinguish the main burner flames The blower motor will stay energized for an additional 30 seconds after the control verifies that the burner flame is extinguished in order to clear combustion gases from the water heater After the post purge sequence the control will de energize the blower motor and go into a stand by mode awaiting the next call for heat This water heater is equipped with a flammable vapour sensor that is monitored continuously by the electronic control in all modes of operation In the event that flammable vapours are detected the control will automatically shut down the water heater and prevent the water heater from being started again The following is a list of materials that will cause the Flammable Vapour Sensor to shut down the water heater Vapours of Gasoline Vapours of certain flammable paints stains and thinners Vapours of vent pipe Cement amp Solvents Bleach direct contact with flammable vapour sensor Some other flammable materials and t
29. arance to unventilated soffit 1 ft 30 cm F Clearance to outside corner 1 ft 30 cm G Clearance to inside corner 2 ft 61 cm H Clearance to each side of center line extended 3 ft 91 cm within a height 15 ft 4 5 m above the meter above meter regulator assembly regulator assembly I Clearance to service regulator vent outlet 3 ft 91 cm J Clearance to non mechanical air supply inlet 1 ft 30 cm for appliances 10 000 Btuh 3 kW to building or the combustion air inlet to any other appliance L Clearance above paved sidewalk or paved driveway located on public property balcony Inaccordance with the CSA B149 1 Natural Gas and Propane Installation Code Avent shall not be terminated directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor For clearances not specified in CSA B149 1 the following statement shall be included Clearance in accordance with local installa tion codes and the requirements of the gas supplier and the manufacturer s installation instructions 18 NOTICE Follow the vent system manufacturer s installation instructions for proper installation of the vent system and combustion air inlet systems Horizontal Vent Terminal Location A vent shall not terminate 1 ft 30 cm 1 ft
30. ate and or local laws rules regulations or customs LP gas must be used with great caution It is heavier than air and will collect first in lower areas making it hard to detect at nose level Before attempting to light the water heater make sure to look and smell for gas leaks Use a soapy solution to check all gas fittings and connections Bubbling at a connection indicates a leak that must be corrected When smelling to detect a gas leak be sure to sniff near the floor also Gas detectors are recommended in LP amp natural gas applications and their installation should be in accordance with the detector manufacturer s recommendations and or local laws rules regulations or customs It is recommended that more than one method such as soapy solution gas detectors etc be used to detect leaks in gas applications Do not attempt to find the cause yourself Do not try to light any appliance Do not touch any electrical switch Do not use any phone in your building Leave the house immediately and make sure your family and pets leave also Leave the doors open for ventilation and contact the gas supplier a qualified service agency or the fire department Stay away from the house or building until the service call has been made the leak is corrected and a qualified agency has determined the area to be safe IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING Vl N Z N A
31. ath A Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance Storage of or use of gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance can result in serious injury or death IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING ADANGER WATER TEMPERATURE SETTING Safety and energy conservation are factors to be considered when selecting the water temperature setting of a water heater s combination gas control Water temperatures above 125 F 52 C can cause severe burns or death from scalding Be sure to read and follow the warnings outlined on the label pictured below This label is also located on the water heater Time Temperature Relationship in Scalds A D A N G E Water Temperature Time To Produce a Serious Burn 3 120 F 49 C More than 5 minutes 125 F 52 C 1 to 2 minutes 130 F 54 C About 30 seconds 135 F 57 C About 10 seconds 140 F 60 C Less than 5 seconds 145 F 63 C Less than 3 seconds 150 F 66 C About 1 seconds 155 F 68 C About 1 second Table courtesy of Shriners Burn Institute The chart shown above may be used as a guide in determining the proper water temperature for your home ADANGER Households with small children disabled or elderly persons may require a 120 F 49 C or lower combination gas control thermostat s
32. bout optional piping Horizontal Vent and Combustion Air Inlet Terminal Installation 2 ft x 2 ft 60 cm x 60 cm Sheet Metal Shield on Brick or Mesh Protective Screens Inside Note Termination restrictors used on 75 gallon models only Raise horizontal pipe upwards 1 8 Raise horizontal in per foot 10 mm per m min y 1 8 in eee REPE ium of Wall i Inside of Outside of Building Building Min ft 30 5 cm Raise horizontal pipe upwards 1 8 in per foot 10 mm per m min oo Optional Condensate Management Drain Port See Condensate Management Section for additional information about optional piping Alternate Horizontal Vent and Combustion Terminal Installation 21 Installing the Water Heater Terminal assemblies to be parallel to wall Horizontal Vent and Combustion Air Inlet Alternate Vent Riser Terminal Installation 40 50 amp 65 Gallon Models ONLY Read these instructions thoroughly and make sure you understand all steps and procedures before proceeding with the installation Determine the locations for the vent and combustion air inlet terminals then make two 2 holes through the exterior wall to accommodate the vent and combustion air inlet pipes e Maintain a minimum horizational distance of 12 in 30 5 cm between the vent and combustion air inlet terminal centerlines e Maintain a minimum distance from the vent and combustion air inlet
33. ceeding with the installation Determine the location for the concentric termi nal then make a 5 in 12 7 cm hole through the exterior wall Disassemble the concentric terminal assembly e Note The concentric terminal assembly consists of an inner straight vent pipe an outer straight combustion air inlet pipe a Wye fitting and rain cap The concentric terminal assembly is designed to accept 3 in 7 6 cm diameter pipe If 2 in 5 1 cm diameter pipe is used e Then either 2 in x 3 in 5 1 cm x 7 6 cm pipe increasers e Or flush bushings must be installed to the vent and combustion air inlet connections of the terminal assembly e DO NOT use the concentric terminal assem bly with 4 in 10 2 cm vent and combustion air inlet systems From inside the building insert the outer straight combustion air inlet pipe through the wall so that the rear of the rain cap when in stalled sits flush with the outside wall NOTICE The concentric terminal assembly may be reduced in length as follows e Measure for desired installation length then cut the outer straight combustion air inlet pipe accordingly but not less than 12 in 30 cm e Measure and cut the straight inner vent pipe of the concentric terminal assembly so it is 13 in 5 1 cm longer in length than the outer straight combustion air inlet pipe e Ensure that there is no insulation or debris in the pipe Assemble the vent pipe assembly e Clean
34. ction 40 Extended Shut Down 40 Troubleshooting Tips Before You Call FOR SNUG TET ETT 41 42 LED Codes ERE TET 43 Customer Service IPartsSilbistes t LT 44 i You NecedS Semice EE 48 FOR YOUR RECORDS Write the model and serial numbers here You can find them on a label on the appliance Staple sales slip or cancelled check here Proof of the original purchase date is needed to obtain service under the warranty READ THIS MANUAL Inside you will find many helpful hints on how to use and maintain your water heater properly A little preventive care on your part can save you time and money over the life of your water heater You ll find many answers to common problems in the Troubleshooting Guide If you review the chart of Troubleshooting Tips first you may not need to call for service READ THE SAFETY INFORMATION Your safety and the safety of others are very important There are many important safety messages in this manual and on your appliance Always read and obey all safety messages as an indication of Important Safety Information This symbol alerts you to potential hazards that can kill or hurt you and others This is the safety alert symbol Recognize this symbol All safety messages will follow the safety alert symbol and either the word DANGER WARNING CAUTION or NOTICE These words mean A DANGER An imminently hazardous situation that will result
35. e Termination Restrictors used on 75 Gallon models ONLY Exhaust Vent Min 18 in 46 cm Above Roof and Max 24 in 61 cm Above Roof Without Additional Support Important The vent terminal must not terminate below the combustion air inlet terminal Short Piece of Pipe Combustion Air Inlet Optional Condensate Management Drain Port See Condensate Management Section for additional information about optional piping Exhaust Vent and or Combustion Air Inlet Pipe Through Roof Terminals with 1 2 in 1 3 cm Mesh Exhaust Vent Protective Screens Inside Short Piece of Pipe Combustion Air Inlet TIN Min8in 46cm Above Roof and Max 24 in 61 cm Above Roof Without Additional Support See Condensate Management Section for additional information about optional piping 26 Alternate Vent and or Combustion Air Inlet Pipe Through Roof Slope 1 8 in per foot 10 mm per m towards the water heater Optional Condensate Management Drain Port Vertical Vent Alternate Concentric Terminal Installation Contact Manufacturer s National Service Department for Kit information see If You Need Service section The location of the vent and combustion air inlet terminal depends on the following minimum clearances and considerations 1 Minimum 18 in 46 cm exposed pipe above roof 2 Maximum 2 fi
36. e technician to remove scale Vent and or combustion air Remove obstruction or debris from inlet systems are blocked vent and or combustion air inlet systems Unable to light the main burner Air in gas line Contact a qualified service technician to purge the air from the gas line Blocked vent system Contact a qualified service technician to evaluate vent system for blockage Blocked combustion air inlet Contact a qualified service technician system to evaluate the combustion air inlet system for blockage Pressure switches Make sure the pressure switch hoses Wire connection s not fully Contact a qualified service technician secured to confirm wire connections Combustion shutoff device Combustion Shutoff Device s should tripped be inspected by a qualified service technician Gas control problem Contact a qualified service technician Main burner does not stay lit Energy shutoff device open The combination gas control thermostat should be replaced by a qualified service technician Combustion shutoff device The combustion shutoff device should tripped be inspected by a qualified service technician A CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING CAUTION For your safety DO NOT attempt repair of gas piping combination gas control thermostat burners vent and or combustion air
37. e water heater flows back into the city main where the pressure is easily dissipated A closed water system however prevents the expanding water from flowing back into the main supply line and the result of thermal expansion can create a rapid and dangerous Water Supply Connections Refer to the following illustration for suggested typical installation The installation of unions or flexible copper connectors are recommended on the hot and cold water connections so that the water heater may be easily disconnected for servicing if necessary The HOT and COLD water connections are clearly marked on the water heater Install a shutoff valve in the cold water line near the water heater IMPORTANT For models equipped with a Top Cap it is rec ommended that the hot and cold water piping are released that will shorten the life of any gas burning appliance Propellants from common spray cans or gas leaks from A C and refrigeration equipment are highly corrosive after passing through a flame The water heater warranty is voided when fail ure of the heater is due to operation in a corro sive atmosphere pressure increase in the water heater and system piping This rapid pressure increase can quickly reach the safety setting of the relief valve caus ing it to operate during each heating cycle Thermal expansion and the resulting rapid and repeated expansion and contraction of compo nents in the water heater and pipin
38. ed in accordance with local codes or in the absence of local codes in accordance with latest edition of the Canadian Electrical Code CSA C22 1 Refer to the figures below for water heater internal wiring SCHEMATIC DIAGRAM SCHEMA DE CABLAGE lt 120 VAC ON OFF SWITCH CONTACTEUR MARCHE ARRET IGNITER ALLUMEUR FLAMMABLE VAPOR SENSOR DETECTEUR DE VAPEUR INFLAMMABLE FLAME SENSOR CAPTEUR DE FLAMME VAC VAC SW NO SW NC BL N C TEMPERATURE BK SWITCH NC CHANGEMENT DE TEMPERATURE BLOWER SOUFFLEUR aA A CONTACTEUR A DEPRESSION oO E E z 28 96 iz TE W zT EET ou o gt 4 tow oa z W 2 d W p z 4 E 2 iu z a i iu E Z w g z oO c E o ul A a ul a O c E z o o BK BLACK NOIR BL BLUE BLEU G GREEN VERT R RED ROUGE W WHITE BLANC Y YELLOW JAUNE NOTE IF ANY OF THE ORIGINAL WIRE SUPPLIED WITH THE APPLIANCE MUST BE REPLACED IT MUST BE REPLACED WITH A 18 GA 600 V 105 C WIRE H REMARQUE SI UNE PARTIE QUELCONQUE DU CABLAGE ORIGINAL N FOURNI AVEC L APPAREIL DOIT ETRE REMPLACEE ELLE DOIT ETRE REMPLAC E AVEC UN FIL DE CALIBRE 18 600 VCA 105 C 120V 50 60 Hz LESS THAN 5 AMPS A CAUTION Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING Ensure the T amp P Valve opening is not obstructed by the insulation Insulation Blankets Insulation blankets available to the general pub
39. embly nota replacment part Combustion Air Inlet Coupling Flammable Vapor Sensor Burner Access Door Gasket 44 Heat Trap Nipples Top Cap Certain models only Dip Tube Dip Tube Gasket Flue Baffle Temperature and Pressure Relief Valve Drain Valve Burner Orifice gniter Burner Access Door Combination Gas Control Thermostat A CAUTION For your safety DO NOT attempt repair of gas piping gas control thermostat burners vent connectors or other safety devices Refer repairs to qualified service personnel Use only original equipment replacement parts Burner Assembly Kit he kit provides extra speed clips and tamper resistant screws May differ in actual appearance Burner Access Door Grommet Notes 45 Notes 46 Notes 47 IF YOU NEED SERVICE SS l Should you have any questions about your new water heater or if it requires adjustment repair or rou tine maintenance it is suggested that you first contact your installer plumbing contractor or previously agreed upon service agency In the event the firm has moved or is unavailable refer to the telephone directory commercial listings or local utility for qualified service assistance Should your problem not be solved to your complete satisfaction you should then contact the Manufacturer s National Service Department at the following address Rheem Canada Ltd 125 Edgeware Unit 1
40. en selecting the water temperature setting of the water heater s combination gas control thermostat The lower the temperature setting the greater the savings in energy and operating costs To comply with safety regulations the combination gas control thermostat was set at its lowest setting before the water up then the gas valve should open and the main burner ignite After the main burner ignites replace the outer door If no main burner flame is established the combina tion gas control will go through three trials for ignition before going into a lock out A warning light will alert the user of this lock out condition If this happens refer to Troubleshooting Guide TO SHUT OFF WATER HEATER Turn switch located on the side of the blower assembly to the OFF position See dia gram on page 44 for location of blower assembly heater was shipped from the factory The recommended starting point temperature is 120 F 49 C Water temperatures above 125 F 52 C can cause severe burns or death from scalding Be sure to read and follow the warnings outlined in this manual and on the label located on the water heater near the combination gas control thermostat Mixing valves are available for reducing point of use water temperature by mixing hot and cold water in branch water lines Time Temperature Relationship in Scalds Water Temperature Water Temperature Setting Contact a licensed plumb
41. ent pipe 7 Support horizontal sections of the vent and combustion air inlet A pipe every 4 ft 1 22 m DO NOT rigidly secure the vent system WARNING Moisture in the flue gas will condense as it Provisions must be made to allow for expansion and contraction of the leaves the vent terminal In cold weather this condensate can vent system freeze on the exterior wall under the eaves and on I surrounding objects Some discoloration to the exterior of the g DO NOT install the vent and combustion air inlet terminals less than building is to be expected However improper location or ft 30 cm above grade or average snowfall whichever is greater installation can result in severe damage to the structure or 9 Permanently seal annular openings around the vent and combustion air exterior finish of the building inlet system penetrations using approved materials to prevent entry of combustion products into the building I9 Installing the Water Heater 20 Read these instructions thoroughly and make sure you understand all steps and procedures before proceeding with the installation Determine the locations for the vent and com bustion air inlet terminals then make two 2 holes through the exterior wall to accommo date the vent and combustion air inlet pipes e Maintain a minimum distance of 12 in 30 5 cm between the vent and combustion air inlet terminal centerlines Insert lengths of vent and combustion air inlet pi
42. er causing damage to the water heater Failure to follow this warning could result in damage to the unit improper operation per sonal injury or death Short Piece of Pipe 3 in 7 6 cm 90 Street Elbow Min 18 in 46 cm Above Roof and Max 24 in 61 cm Above Roof Without Additional Support Slope 1 8 in per foot 10 mm per m towards the water heater Optional Condensate Management Drain Port Alternate Concentric Vent and or Combustion Air Inlet Pipe Through Roof See Condensate Management Section for additional information about optional piping 28 Condensate Management Optional Piping There is no condensate collection and disposal required for Rheem water heaters under most conditions Installations where the vent system length is short or where it runs through conditioned space in the home such as basements or interior walls do not typically cause condensation and will not require any condensation disposal methods regardless of vent pipe slope The images on Page 21 show the recommended vent pipe slope of no less than 1 8 in per foot 10 mm per m away from the water heater Any condensation in the venting system will drain toward the vent termination The blower pipe coupling features a capped drain port which is not needed in this case A CAUTION Make sure the drain port cap is securely in place There are vent piping configurations when combined with certa
43. er or the local plumb ing authority for further information The charts may be used as a guide in determin ing the appropriate water temperature for your home Maximum water temperatures occur just after the burner has shut off To determine the water temperature turn on a hot water faucet and place a thermometer in the water stream To avoid any unintentional changes in water temperature settings the combination gas control thermostat has a tamper resistant feature for changing the temperature setting To change the temperature setting follow these instructions 1 Wake Up the temperature indicators by holding down both COOLER and HOTTER temperature adjustment buttons at the same time for one second see Figure below One or two of the temperature indicators will light up These indicators will only remain on for 30 seconds if no further buttons are pressed After 30 seconds the control will go back to sleep mode 2 Release both of the temperature buttons a To decrease the temperature press and release the COOLER button until the desired setting 1s reached b To increase the temperature press and release the HOTTER button until the desired setting 1s reached NOTICE Holding down the button will not continue to lower or raise the temperature setting The button must be pressed and released for each temperature change desired Time To Produce a Serious Burn Tempera A conditi
44. ere and all the flue gases are discharged to the outside atmo sphere For proper installation of the vent and combustion air inlet systems follow the instructions as detailed in this manual and those per the current edition of CAN CSA B149 1 Natural Gas and Propane Installation Code DO NOT connect this water heater to an existing vent or chim ney it must be vented separately from all other appliances This water heater must be vented to the outdoors with a venting system that is certified to the Underwriter s Laboratories of Canada Standard ULC S636 Current Edition The vent system must be installed in accordance with the vent system manu facturer s installation instructions The first 3 ft 90 cm from the appliance flue outlet must be readily accessible for visible inspection The water heater must be isolated from the gas supply piping system by closing its individual manual gas shutoff valve during any pressure testing of the gas supply at test pressures equal to or less than 1 2 psi 3 5 kPa NOTICE This unit must be vented using only 2 in 5 1 cm 3 in 7 6 cm or 4 in 10 2 cm diameter PVC or CPVC pipe and fittings that are certified to ULC S636 refer to pages 11 through 28 for approved diameters and allow able equivalent lengths by water heater model IMPORTANT For 50 Gallon Models with inputs of 65 000 amp 47 000 Btu hr and 75 Gallon Power Direct Vent Models ONLY The first 10 ft
45. etting to prevent contact with HOT water Maximum water temperatures occur just after the burner has shut off To find water temperature being delivered turn on a hot water faucet and place a thermometer in the water stream and read the Water temperature over 125 F can cause severe burns instantly or death from scalds Children disabled and elderly are at highest risk of being scalded See instruction manual before setting temperature at water heater Feel water before bathing or showering Temperature limiting valves are available see manual thermometer See pages 36 and 37 for more details The temperature of the water in the heater can be regulated by pressing the COOLER or HOTTER arrow buttons 9 G on the front of the combination gas control To comply with safety regulations the combination gas control was set at its lowest setting before the water heater was shipped from the factory The desired water temperature must be set The illustration below details the approximate water temperature for each LED indicator of the EL combination gas control s TooS66 zr display COOLER 9 S HOTTER DANGER Hotter water increases the potential for Hot Water SCALDS Notice Mixing valves are available for reducing point of Temperature Setting Burns on Adult Skin use water temperature by mixing hot and cold water in AARSE TOEIC a M AB c branch water lines Contact a lice
46. f you cannot reach your gas supplier call Do not store or use gasoline or other the fire department flammable vapours or liquids or other combustible materials in the vicinity of this or any other appliance To do so may result in an explosion or fire Improper installation adjustment alteration service or maintenance can cause property WHAT TO DO IF YOU SMELL GAS damage personal injury or death Refer to Do not try to light any appliance this manual Installation and service must be performed by a qualified installer service agency or the gas supplier Do not return to your home until authorized by the gas supplier or fire department 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 A CERTIFIED Printed in USA AP14897 3 08 11 Safety Information Safety Precautions 3 6 RG asil Viocdel Sie 5 Installation Instructions Location ee erem 7 Water Supply Connections 8 aS SUDDIVZPERE EET ET 10 Vent and Combustion Ait Inlet TES 11 28 Condensate Management 29 Wiring Diagram 30 broesinsulation ee 31 IHKSEIE INBTOS e PE 31 Installation Checklist 33 Potable Space Heating 34 Operating Instructions Lighting Instructions 35 Water Temperature 36 37 Care and Cleaning Vent System Inspection 40 Burner Inspe
47. g system can cause premature failure of the relief valve and possibly the heater itself Replacing the relief valve will not correct the problem The suggested method of controlling thermal expansion is to install an expansion tank in the cold water line between the water heater and the check valve see Typical Installation on page 9 The expansion tank is designed with an air cushion built in that compresses as the system pressure increases thereby relieving the over pressure condition and eliminating the repeated operation of the relief valve Other methods of controlling thermal expansion are also available Contact your installing contractor water supplier or plumbing inspector for additional information regarding this subject have a minimum vertical height of 10 inches 25 4 cm from the top of the water heater before transitioning into any elbow This vertical height is needed in order to provide adequate clearance for Top Cap installation and removal To gain access to the hot and cold water con nections on models equipped with a Top Cap remove the two 2 screws that secure the top cap to the water heater then pull the Top Cap upward and off the water heater See illustra tion of Top Cap and screws on pages 32 amp 44 Alternate installation detail for models equipped with a Top Cap NOTICE The Canadian Standards Association mandates a manual gas shut off valve See the CAN CSA B149 1 Natural Gas and P
48. heir vapours If the flammable vapour sensor shuts down the water heater then the electronic control will display the appropriate error code and you should then promptly contact a qualified service technician Refer to the NOTICE on page 3 for additional information ADANGER Before manually operating the relief valve make certain no one will be exposed to the danger of the hot water released by the valve The water may be hot enough to create a scald hazard The water should be released into a suitable drain to prevent injury or property damage A DANGER Hotter water increases the potential for Hot Water Scalds ADANGER Failure to perform the recommended Routine Preventative Maintenance can harm the proper operation of this water heater which can cause carbon monoxide dangers excessive hot water temperatures and other potentially hazardous conditions Draining the Water Heater ACAUTION Shut off gas to the water heater at the manual gas shut off valve before draining water ADANGER Before manually operating the temperature and pressure relief valve make certain no one will be exposed to the hot water released by the valve The water drained from the tank may be hot enough to present a scald hazard and should be directed to a suitable drain to prevent injury or damage Routine Preventative Maintenance Properly maintained your water heater will provide years of dependable trouble free serv
49. ice It is recommended that a periodic inspection of the combination gas control thermostat burner relief valve internal flue way vent and combustion air inlet systems be made by service personnel qualified in gas appliance repair It is suggested that a routine preventative maintenance program be established and followed by the user Inspect the combustion air inlet and vent systems Make certain that all joints are secure and that combustion air inlet and vent pipe supports are all in place Check the outdoor combustion air inlet and vent terminals to see that they are free of obstructions and that there is no damage nearby caused by condensate Periodically lift and release the lever handle on the temperature pressure relief valve located near the top of the water heater to make certain the valve operates freely Allow several gallons to flush through the discharge line to an open drain NOTICE If the temperature and pressure relief valve on the water heater discharges periodically this may be due to thermal expansion in a closed water system Contact the water supplier or your plumbing contractor on how to correct this DO NOT plug the relief valve outlet A water heater s tank can act as a settling basin for solids suspended in the water It is Before turning off the cold water supply to the water heater open a hot water faucet allowing sufficient cold water into the tank to prevent the risk of a scald inju
50. in environmental conditions that can produce enough condensate to require collection and disposal When a slope away from the water heater cannot be achieved and condensate handling is required in a horizontal vent system slope the vent pipe toward the water heater 1 8 in per foot 10 mm per m minimum and condensate management means as follows Remove the cap from vent pipe coupling drain port on the blower assembly Cap LM Cap me Connect 1 2 in I D flexible PVC or equivalent material clear tubing to the drain port Note The tubing must be of sufficient length to reach a floor drain outside the building or other required condensate disposal termination requirements Refer to local codes Loop the drain tube so that it has a circular trap and secure the top and bottom of the loop with wire ties or plastic zip ties as shown DO NOT restrict any portion of the drain tube The loop and all sections of the tube must not be restricted or collasped From Drain Port Wire or Zip Ties To Floor Drain Fill the drain tube with water so that no combustion gases might vent into the room Route the drain tube to a floor drain or outside the building or other required condensate disposal termination requirements Refer to local codes 29 Installing the Water Heater 30 o Jeu Wiring This water heater may be connected to electric service with the power cord
51. inlet systems for any signs of cracks or fractures particularly at the joints between elbows or other fittings and the straight length of vent pipe Check the vent and combustion air inlet for signs of sagging or other stresses in the joints as a result of misalignment of any compo nents in the systems If any of the conditions above are found they must be corrected in accordance with the instructions in this manual before completing the installation and putting the water heater into service Maximum and Minimum Vent and Combustion Air Inlet Lengths for Power Direct Vent Models 40 Gallon with Inputs of 40 000 amp 38 000 Btu h 50 Gallon with Input of 40 000 Btu h Read these instructions thoroughly and make sure you understand all steps and procedures before proceeding with the installation 1 Connect the ULC 636 approved vent sys tem piping to the blower assembly using the already installed 2 in 5 1 cm diameter rubber coupling and clamps 2 Connect the combustion air inlet system piping to the combustion air inlet pip ing tee using the 2 in 5 1 cm already installed rubber coupling and clamps See Figure 1 3 For vent and combustion air inlet termi nals use the two 2 2 in 5 1 cm diam eter Schedule 40 PVC 90 1 4 standard bend ULC S636 approved elbows supplied with the water heater This water heater may also be installed with 3 in 7 6 cm diameter pipe and fittings for the vent and combusti
52. inlet systems or other safety devices Refer repairs to qualified service personnel 41 Before You Call For Service Troubleshooting Tips Save time and money Review the charts on the following pages first and you may not need to call for service This water heater incorporates shut off devices that shut the operation of the water heater down if undesirable combustion conditions occur such as the presence of flammable vapours or blockage of the vent and or combustion air inlet systems Please contact a Qualified Service Technician if this occurs Possible Causes What to Do Rumbling noise Scale and sediment Drain the water heater to remove scale and sediment from the tank Refer to page 39 Relief valve pro Pressure build up caused by thermal This is an unacceptable condition and must ducing popping expansion in a closed system be corrected Contact the water supplier or noise or draining plumbing contractor on how to correct this Do not plug the relief valve outlet hot water capacity ofthe water heater abnormal demand pressure See the Water Temperature Setting of the thermostat may be set too low water heater section of this manual Water is too hot See the Water Temperature Setting of the thermostat 1s set too high water heater section of this manual Combination gas control thermostat Contact a qualified service technician is defective to replace the combination gas control thermostat CAUTION
53. itor with the main burner off and inspect the main burner while firing If any unusual burner operation is noted the water heater should be shut off until qualified service assistance can be obtained vent system terminals to see that they are free of obstructions and that there is no damage nearby caused by condensate ACAUTION For your safety cleaning of the burner must be performed only by qualified service personnel as it involves the disconnection of gas piping and leak testing The burner chamber is a Sealed area If the burner access door is removed the burner access door gas ket must be replaced For cleaning remove the burner from the water heater A vacuum cleaner can be used on the burner and floor shield inside the water heater The burner can also be cleaned by scrubbing with mild detergent Vacation and Extended Shut Down If the water heater is to remain idle for an extended period of time the power and water to the appliance should be turned off to conserve energy and prevent a build up of dangerous hydrogen gas The water heater and piping should be drained if they might be subjected to freezing temperatures Anode Rod This water heater is equipped with an anode rod designed to prolong the life of the glass lined tank The anode rod is slowly consumed thereby eliminating or minimizing corrosion of the glass lined tank After a long shut down period the water heater s operation and contro
54. lectrical power to the appliance 35 Operating the Water Heater ACAUTION Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for a long period of time generally two weeks or more HYDROGEN GAS IS EXTREMELY FLAMMABLE To dissipate such gas and to reduce risk of injury it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected to the hot water system If hydrogen is present there will be an unusual sound such as air escaping through the pipe as the water begins to flow Do not smoke or use an open flame near the faucet at the time it is open Safety Precautions A Do turn off manual gas shut off valve if water heater has been subjected to over heating fire flood physi cal damage or if the gas supply fails to shut off B Do Not turn on water heater unless it is completely filled with water Do Not turn on water heater if cold water supply shut off valve is closed D Do Not allow combustible materials such as newspa per rags or mops to accumulate near water heater DANGER Hotter water increases the Potential for Hot Water SCALDS Households with small children disabled or elderly persons may require a 120 F 49 C or lower combination gas control thermostat setting to prevent contact with unsafe water temperatures 36 E Do Not store or use gasoline or other flammable
55. lights the burner Do NOT try to light the burner by hand BEFORE PUTTING THIS APPLIANCE INTO SERVICE Smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do nottry to light any appliance e Do not touch any electric switch do not use any phone in your building mmediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e If you cannot reach your gas supplier call the fire department C Use only your hand to push in the gas control buttons Never use tools If the control buttons will not push in don t try to repair them call a qualified service technician Force or attempted repair may result in fire or explosion Do not use this appliance if any part has been under water Immediately call a qualified installer or service agency to replace a flooded water heater Do not attempt to repair the unit It must be replaced OPERATING INSTRUCTIONS 1 Stop Read the safety information above on this label Toggle the ON OFF switch located on the blower assembly to the ON position Setthe thermostat to the lowest setting by pressing the COOLER X and HOTTER buttons at the same time and holding them for 1 second Depress the COOLER button until only the WARM indicator light is lit Toggle the ON OFF switch located on the blower assemb
56. lled in the same atmospheric pressure zone The minimum and maximum equivalent lengths for the vent and combustion air inlet systems are shown in Table 1 e Maintain a minimum vertical height of 1 ft 30 5 cm of pipe including pipe increasers if used from the blower exhaust coupling before transitioning into any elbow e The vent and combustion air inlet termina tions are not included in the equivalency calculations NOTICE A 90 1 4 standard bend or long bend elbow is equivalent to 5 ft 1 52 m of straight pipe A 45 1 8 standard bend or long bend elbow is equivalent to 2 5 ft 0 76 m of straight pipe DO NOT use short bend elbows Use only standard and or long bend elbows See exam ples 13 Installing the Water Heater Elbow Examples Short Bend 90 Elbow Standard Bend 90 Elbow Long Bend 90 Elbow Do Not Use OK to Use OK to Use Vent Combustion air inlet Vent Combustion air inlet gt lt 3in 7 6 cm pipe diameter 2 in 5 1 cm pipe diameter Min 2 1 2 in 6 4 cm to 6 in 15 2 em Min 2 1 2 in Max Spacing 6 4 cm to 6 in 15 2 cm mM Max Spacing F pus 1 Figure 2 Table 1 From Sea Level through 5 999 ft 1 828 m Above Sea Level Vent amp Min Allowed Equivalent Combustion Vent amp Combustion Air Max Allowed Equivalent Air Inlet System Inlet Lengths Each Pipe Vent amp Combustion Air Inlet vent and Combustion Dia
57. ls should be checked by qualified service personnel Make certain the water heater is com pletely filled again before placing it in operation Water sometimes contains a high sulfate and or mineral content and together with cathodic protection process can produce a hydrogen sulfide or rotten egg odor in the heated water Chlorination of the water supply should minimize the problem Before You Call For Service Troubleshooting Tips Save time and money Review the charts on the following pages first and you may not need to call for service This water heater incorporates shut off devices that shuts the operation of the water heater down if undesirable combustion conditions occur such as the presence of flammable vapours or blockage of the vent and or combustion air inlet systems Please contact a Qualified Service Technician if this occurs Problem Possible Causes What To Do Condensation This usually happens when This is normal after the water in the a new heater is filled for the tank warms up the condensation will first time disappear Refer to page 10 for more information Moisture from the products of This is normal and will disappear combustion condensing on the in time Refer to page 10 for more tank surface information An undersized water heater Use a water heater size that meets the will cause condensation requirements of your needs Yellow flame or soot Scale on top of the burner Contact a qualified servic
58. ly to the OFF position Turn off all electrical power to the appliance This appliance is equipped with a Hot Surface Ignition System which auto matically lights the burner Do NOT open the inner door of this appliance and try to light the burner by hand Waitfive 5 minutes to clear out any gas If you smell gas STOP Follow B in the safety information above on this label If 2 3 Un you do not smell gas go ahead to the next step 8 Turn on all electrical power to the appliance 9 Toggle the ON OFF switch located on the blower assembly to the ON position Setthermostat to the desired temperature setting by pressing the COOLER Qand HOTTER buttons at the same time and holding them for 1 second Depress the HOTTER button until the desired temperature display setting is lit The preferred starting point for temperature setting is indicated byy7on the thermostat 10 11 If the appliance will not operate follow the instructions TO TURN OFF GASTO APPLIANCE and call your service technician or gas supplier rd 0000002 wien vere C lt a TO TURN GAS OFF TO THE APPLIANCE 1 Set the thermostat to the lowest setting by first depressing the COOLER Q and HOTTER B buttons at the same time and holding for 1 second Depress the COOLER button until only the WARM indicator light is lit 2 Toggle the ON OFF switch located on the blower assembly to the OFF position 3 Turn off all e
59. me submerged in water This condition is not unusual and will disappear after the water becomes heated If however the condensation continues examine the piping and fittings for possible leaks practical at the time the appliance installation The sediment trap shall be either a tee fitting with a capped nipple in the bottom outlet or other device recognized as an effective sediment trap Do not use excessive force over 31 5 ft lbs 42 7 Nem in tightening the pipe joint at the combination gas control inlet particularly if teflon pipe compound is used as the valve body may be damaged The inlet gas pressure to the water heater must not exceed 14 0 in w c 3 5 kPa w c for natural gas or 14 0 in w c 3 5 kPa w c for LP gas For purposes of input adjustment the minimum inlet gas pressure with main burner on is shown on the water heater rating plate If high or low gas pressures are present contact your gas supplier for correction 2 Use a soapy water solution to test for leaks at all connections and fittings Bubbles indicate a gas leak that must be corrected The factory connections to the combination gas control should also be leak tested after the water heater is placed in operation AWARNING Failure to install a water heater suitable for the altitude at the location it is intended to serve can result in improper operation of the appliance resulting in property damage and or producing carbon m
60. meter Run Lengths Each Pipe Run Air Inlet System Termination nue NEM Mates 3 7 31 5 EM oo 50 Gallon 40 000 3 2 90 Elbows n Use only Rheem 3 in 7 6 cm concentric termination 14 Maximum and Minimum Vent and Combustion Air Inlet Lengths For Power Direct Vent Models 50 Gallon With Inputs of 65 000 amp 47 000 Btu h 65 Gallon With Inputs of 65 000 amp 56 000 Btu h 75 Gallon With Inputs of 75 100 amp 70 000 Btu h Read these instructions thoroughly and make sure you understand all steps and procedures before proceeding with the installation 1 Connect the ULC 636 approved vent sys tem piping to the blower assembly using the already installed 3 in 7 6 cm diameter rubber coupling and clamps 2 Connect the combustion air inlet system piping to the combustion air inlet pip ing tee using the 3 in 7 6 cm already installed rubber coupling and clamps See Figure 3 3 For vent and combustion air inlet termi nals use the two 2 3 in 7 6 cm diam eter Schedule 40 PVC 90 1 4 standard bend ULC S636 approved elbows supplied with the water heater This water heater may also be installed with 4 in 10 2 cm diameter pipe and fittings for the vent and combustion air inlet systems To connect the vent system piping e Install a straight length of 3 in 7 6 cm diameter ULC S636 approved pipe to the rubber coupling on the blower assembly e Followed by a 3 in 7 6
61. n air inlet terminations are not included in the equivalency calculations Complete the installation of the remainder of the vent system and attach it to the vent connector fitting on the water heater s blower assembly e Horizontal sections of the vent system must slope downward toward the water heater a minimum of 1 8 in per foot 10 mm per m DO NOT use unequal diameters of pipe and fittings for the vent and combustion air inlet systems except as defined previously NOTICE The difference between the vent and combustion air inlet system equivalent lengths must be no greater than 5 ft 1 5 m Complete the installation of the remainder of the combustion air inlet system and attach it to the combustion air inlet connector fitting on the water heater s combustion air inlet tube assembly Support vertical and horizontal lengths of the vent and combustion air inlet systems as previously mentioned Side View i lt Termination Openings 5 12 in 30 5 cm min above grade or anticipated snow level Y Clearance is equal and parallel to wall Combustion Air Inlet Terminal Horizontal Vent Alternate Concentric Terminal Installation Contact Manufacturer s National Service Department for Kit information see If You Need Service section Read these instructions thoroughly and make sure you understand all steps and procedures before pro
62. nd combustion air inlet ter minal heights and cut the pipe accordingly e Insert lengths of vent and combustion air inlet pipes through the ceiling wall as shown e Install adequate flashing where the vent and combustion air inlet pipes pass through the roof e Connect a short piece of pipe approximately 3 in 7 6 cm to the terminals and elbows Place the supplied 1 2 in 1 3 cm mesh metal screens inside each terminal fitting then connect a short piece of pipe approximately 3 in 7 6 cm between the terminals and elbows NOTICE For cold climates the screens may be removed For 75 Gallon Power Direct Vent Models ONLY These water heater models are supplied with two 2 vent and combustion air inlet termination restrictors These restrictors help the water heater achieve peak efficiency when the water heater is installed using 3 in 7 6 cm diameter pipe at the minimum equivalent vent and combustion air inlet lengths specified in Table 2 IMPORTANT Do not install the termination restrictors in equivalent vent and or combustion air inlet lengths longer than 8 ft 2 m or on any other Power Direct Vent model NOTICE Termination Restrictors supplied for use with 75 Gallon models ONLY NOTICE Vent pipe fittings solvent cement primers and procedures must conform to ULC S636 25 Installing the Water Heater Terminals with 1 2 in 1 3 cm Mesh Protective Screens and Termination Restrictors Inside Not
63. nsed plumber or the local y 120 GO Sun cou ossis plumbing authority for further information A approx 130 F 54 C 000800 About 30 seconds B approx 140 F 60 C OOoooeo Less than 5 seconds C approx 150 F 66 C Ooooooe About 1 1 2 seconds 4 C Flashing approx 160 F 71 C O0000 6 About 1 2 seconds ADANGER LIQUEFIED PETROLEUM LP AND NATURAL GAS MODELS LP and Natural gas have an odorant added to aid in detecting a gas leak Some people may not physically be able to smell or recognize this odorant If you are unsure or unfamiliar with the smell of LP or natural gas ask the gas supplier Other conditions such as odorant fade which causes the odorant to diminish in intensity can also hide or camouflage a gas leak Water heaters utilizing LP gas are DANGER If a gas leak is present o different from natural gas models A i ig r suspected natural gas water heater will not function safely on LP gas and vice versa No attempt should ever be made to convert the water heater from natural gas to LP gas To avoid possible equipment damage personal injury or fire do not connect the water heater to a fuel type not in accordance with the unit data plate LP for LP units Natural gas for natural gas units These units are not certified for any other fuel type LP appliances should not be installed below grade for example in a basement if such installation is prohibited by federal st
64. of 1 ft 30 5 cm of pipe including pipe increasers if used from the blower exhaust coupling before transitioning into any elbow e The vent and combustion air inlet termina tions are not included in the equivalency calculations NOTICE A 90 1 4 standard bend or long bend elbow is equivalent to 5 ft 1 52 m of straight pipe A 45 1 8 standard bend or long bend elbow is equivalent to 2 5 ft 0 76 m of straight pipe DO NOT use short bend elbows See examples below 15 Installing the Water Heater 7 Elbow Examples Short Bend 90 Elbow Standard Bend 90 Elbow Long Bend 90 Elbow Do Not Use OK to Use OK to Use Combustion air inlet 7 6 cm A pipe diameter Vent Combustion air inlet lt 4in S PE 10 2 cm pipe diameter mant m B om pipe Min 2 1 2 in fi diameter Min 2 1 2 in 6 4 cm to 6 6 4 cm to 6 in 15 2 cm in 15 2 cm Max Spacing Max Spacing pM PART U U Figure 4 16 Table 2 From Sea Level through 2 000 ft 609 m Above Sea Level Vent amp Min Allowed Equivalent Max Allowed Equivalent Combustion Vent amp Combustion Air Vent amp Combustion Air Air Inlet Inlet Lengths Each Pipe Inlet Lengths Each Pipe Run Run System Vent and Combustion Diameter Air Inlet System Termination 3 7 PL 2 5 m5 BOE NN 50 Gallon 65 000 S 7 s s pozos A saou 3 L2 L9 1 2 EE oori Models 90 Elbows c
65. on air inlet systems To connect the vent system piping e Install a straight length of 2 in 5 1 cm diameter ULC S636 approved pipe to the rubber coupling on the blower assembly e Followed by a 2 in 5 1 cm to 3 in 7 6 cm diameter ULC S636 approved pipe increaser fitting See Figure 2 For the vent terminal e Use a 3 in 7 6 cm diameter Schedule 40 PVC 90 1 4 standard bend ULC S636 approved elbow To connect the combustion air inlet system piping e Install a straight length of 2 in 5 1 cm diameter pipe to the combustion air inlet piping tee coupling e Followed by a 2 in 5 1 cm to 3 in 7 6 cm diameter pipe increaser fitting See Figure 2 For the combustion air inlet terminal e Use a3 in 7 6 cm diameter Schedule 40 PVC 90 1 4 standard bend elbow DO NOT use unequal diameters of pipe and fittings for the vent and combustion air inlet systems except as defined previously Note The difference between the vent and combustion air inlet system equivalent lengths must be no greater than 5 ft 1 5 m IMPORTANT Ensure that all the coupling clamps are tightened before allowing the water heater to operate When using CPVC pipe and fittings e Use a 90 ULC S636 approved elbow of the corresponding size and material for the vent terminal e Use a 90 CPVC elbow for the combustion air inlet terminal The vent and combustion air inlet terminals of the water heater must be insta
66. on known as stacking or layering can occur when a series of short and frequent hot water draws are taken The hottest temperature water will be at the top of the tank closest to the outlet pipe delivering hot water to the home Stacking can cause this top layer of water to be hotter than the water toward the bottom of the tank near the combination gas control thermostat Therefore always remember to test the water temperature with your hand before use and remember that hotter water increases the risk of scald injury Also always supervise young children or others who are incapacitated The combination gas control thermostat is constructed with a built in safety shutoff device designed to shut off the gas supply to the burner if the main burner is extinguished for any rea son The combination gas control thermostat is also equipped with a single use gas shutoff device that will shut off the gas supply to the burner if the water heater exceeds normal operating temperatures Refer to the Before You Call For Service section of this manual or contact your dealer A WARNING Should overheating occur or the gas supply fail to shut off turn off the manual gas shutoff valve to the appliance If the water heater has been subjected to fire flood or physical damage turn off the manual gas shutoff valve and do not operate the water heater again until is has been checked by a qualified service technician VA
67. onoxide gas which could result in personal injury or death ADANGER Failure to properly install the vent and combustion air inlet systems as outlined in the Vent and Combustion Air Inlet section of this manual will result in unsafe operation of the water heater causing bodily injury explosion fire or death To avoid the risk of fire explosion or asphyxiation from carbon monoxide NEVER operate the water heater unless it is properly vented and the vent and combustion air inlet systems are properly installed as detailed in the Vent and Combustion Air Inlet section of this manual NOTICE The combustion air inlet system pipe and fittings are not required to be certified to ULC S636 Pressure Testing the Gas Supply System The water heater and its individual shut off valve must be disconnected from the gas supply piping system during any pres sure testing of that system at test pressures in excess 1 2 psi 3 5 kPa High Altitude Input rating of this water heater is based on sea level operation At higher elevations the actual input rate may be lower than the value listed on the rating label due to the derating of Natural Gas and LP Gas This water heater can be installed at elevations up to 5 999 ft 1 828 m above sea level Vent and Combustion Air Inlet This water heater is a direct vent appli ance and must be installed so that all the air for combustion is derived directly from the outside atmosph
68. ons where the ambi ent temperatures do not exceed 100 F 38 C IMPORTANT Do not install the water heater in a location where it may be subjected to ambient temperatures exceeding 125 F 52 C e The water heater should be installed so as to minimize the length of plastic vent and combustion air inlet pipe and the number of vent and combination air inlet connection fittings required e See Vent and Combustion Air Inlet Section for vent system requirements e Hot water lines should be insulated to conserve water and energy e Protect the water heater and water lines from exposure to freezing tempera tures e DO NOT install this water heater out doors e Minimum clearances from combustible construction 0 in 0 in 0 cm 0 cm Front Clearance dimension is mea sured from the water heater jacket to the closet door 5 in 12 7 cm Top clearance dimension is mea sured from the jacket top of the water heater to the ceiling e If the water heater is to be installed directly on carpeting the water heater shall be installed on a metal or wood panel extending beyond the full width and depth of the water heater by at least 3 in 7 6 cm in all directions or if the water heater is to be installed in an alcove or closet the entire floor must be covered by a wood or metal panel 12 in 30 5 cm Installing the Water Heater NOTICE The water heater must not be installed near an air suppl
69. ot exceed 125 F 52 C and CPVC pipe and fittings that are certified to ULC S636 are used for the entire vent system The vent and combustion air inlet systems of this water heater may be installed horizontally through a wall or vertically through the roof Maximum unsupported length is recommended to be no more than 4 ft 1 22 m NOTICE It is imperative that the first hanger be located on the horizontal length immediately adjacent to the first 90 degree elbow from the vertical rise of vent pipe connected to the water heater The support method used should isolate the vent and combustion air inlet pipes from floor joists or other structural members to help prevent the trans mission of noise and vibration Do not support pin or otherwise secure the vent and combustion air inlet systems in a way that restricts the normal thermal expansion and con traction of the chosen venting material If the water heater is being installed as a replace ment for an existing power direct vent water heat er a thorough inspection of the existing vent and combustion air inlet systems must be performed prior to any installation work The existing vent must be code compliant Verify that the correct materials as specified in this manual have been used and that the minimum or maximum vent and combustion air inlet lengths and terminal locations as detailed in this manual have been met Carefully inspect the entire vent and combus tion air
70. pes through the wall as shown e Allow sufficient length of pipe to extend beyond the exterior wall of the building for attachment of the vent and combustion air inlet terminals Place the supplied 1 2 in 1 3 cm mesh metal screens inside each terminal fitting Note For cold climates the screens may be removed Connect the terminals to the vent and combus tion air inlet pipes which are extending out of the building e Ensure that the back of the supplied termi nals are flush with the outside wall surface Complete the installation of the remainder of the vent system and attach it to the vent con nector fitting on the water heater s blower assembly li in 30 5 cm ud Horizontal Vent and Combustion Air Inlet Terminal Installation e Horizontal lengths of the vent system must slope downward a minimum of 1 8 in per foot 10 mm per m IMPORTANT When the vent system cannot be sloped away from the water heater or if the vent system has vertical section s then all horizontal sections must slope upwards a mini mum of 1 8 in per foot 10 mm per m DO NOT use unequal diameters of pipe and fittings for the vent and combustion air inlet systems except as defined previously NOTICE The difference between the vent and combustion air inlet system equivalent lengths must be no greater than 5 ft 1 5 m Complete the installation of the remainder of the combustion air inlet system and attach it to
71. r materials and techniques used in the instal lation of the vent and combustion air inlet systems L Vent pipe properly secured to the exhaust connector of the blower assembly J Vent and combination air inlet systems supported at required intervals F Wiring J Correct power supply 120 VAC C Electrical connections tight L Provisions made to protect area from water dam age B Catch pan installed k Sufficient room to service the water heater L Combustible materials such as clothing cleaning materials rags etc clear of the base of the water heater Flammable vapour sensor is not blocked C Water connections tight and free of leaks C Soap and water solution used to check all connec tions and fittings for possible gas leak L Gas Company inspected installation if required L Discharge line protected from freezing E Venting and Combustion Air Inlet Systems J Appropriate minimum clearances observed L Precautions taken to prevent moisture damage around vent termination J Vapours from nonmetallic pipe cement and primer have dissipated prior to applying electrical power L Combustion Air Inlet pipe properly secured to the combustion air inlet piping tee C Water Heater properly grounded and proper polar ity observed 33 Supplemental Instructions for Gas Water Heaters Installed in Potable Water Space Heating Applications Local codes or plumbing authority requirements may
72. rked on the rating plate The Btuh rating of the relief valve must equal or exceed the Btuh input of the water heater as marked on its rating plate Position the outlet of the relief valve above a suitable open drain to eliminate potential water damage Piping used should be of a type approved for hot water distribution The discharge line must be no smaller than the outlet of the valve and must pitch downward from the valve to allow com plete drainage by gravity of the relief valve and discharge line The end of the discharge line should not be threaded or concealed and should be protected from freezing No valve of any type restriction or reducer coupling must be installed in the discharge line Installing the Water Heater A WARNING The tank must be full of water before the water heater is turned on The water heater warranty does not cover damage or failure resulting from operation with an empty or partially empty tank AWARNING Do not attempt to convert this water heater for use with a different type of gas other than the type shown on the rating plate Such conversion could result in hazardous operating conditions A WARNING Never use an open flame to test for gas leaks as property damage personal injury or death could result 10 To Fill the Water Heater Make certain that the drain valve is closed then open the shut off valve in the cold water supply line Open each hot water faucet slowl
73. ropane Installation Code for complete instructions Typical Installation Vent connector Union Optional Heat trap gt 6 in 15 2 cm min Hot water outlet to Water heater jacket Temperature and pressure relief valve Manual gas shut off __ e To gas supply Union Sediment trap E Combination gas control Jacket door Flammable Vapour Sensor Optional catch pan 1 8 in per foot 10 mm per meter maximum slope down away from the water heater for horizontal venting Blower assembly 4 Combustion air inlet connector Union optional Heat trap S i n 76 in 15 2 cm min KN E To cold water supply Shut off valve Thermal expansion tank if required i Relief valve discharge Drain line to suitable open drain 6in 15 2 cm min air gap if required Drain pan pipe S to suitable drain SS A new combination temperature and pressure relief valve complying with the Standard for Relief Valves and Automatic Gas Shut Off Devices for Hot Water Supply Systems ANSI Z21 22 CSA 4 4 is factory installed and must remain in the opening provided and marked for the purpose on the water heater No valve of any type should be installed between the relief valve and the tank Relief Valve The pressure rating of the relief valve must not exceed 150 psi 1 034 kPa the maximum working pressure of the water heater as ma
74. ry while draining the water heater Once the water in the tank is no longer hot turn off the cold water supply to the water heater Open a hot water faucet or lift the handle on the relief valve to admit air to the tank Attach a garden hose to the drain valve on the water heater and direct the stream of water to a drain Open the valve therefore not uncommon for hard water deposits to accumulate in the bottom of the tank If allowed to accumulate these solids can cover the combination gas control thermostat sensors causing the sensors to operate erratically Because accumulated solids can prevent the combination gas control thermostat sensors from accurately reading the water temperature the water at the fixture can be hotter than the combination gas control thermostat setting It is suggested that a few quarts of water be drained from the water heater s tank every month to clean the tank of these deposits Rapid closing of faucets or solenoid valves in automatic water using appliances can cause a banging noise heard in a water pipe Strategically located risers in the water pipe system or water hammer arresting devices can be used to minimize the problem The anode rod should be removed from the water heater s tank periodically for inspection and replaced when more than 6 in 15 2 cm of core wire is exposed at either end of the rod Make sure the cold water supply is turned off before removing anode rod This
75. sent and will contaminate the drinking water supply causing possible health risks Never introduce toxic chemicals such as those used for boiler treatment into this system Typical Piping Diagram for Combination Potable Space Heating Installation Nominal 3 4 size mixing or tempering valve refer to warning above Follow mixing or tempering valve manufacturer s instructions for installation of the valve Spring loaded check valve in heating unit hot water supply line and cold water return line not supplied with water heater NOTE This check valve is incorporated in some heating units Refer to the installation instructions supplied with specific heating unit to determine if it is required Isolation valve in hot water supply line p to heating unit not supplied with water heater See diagrams above for proper pipe application for vertical or horizontal supply lines Temperature and pressure relief valve as required by CAN CSA B149 1 J Gas line to water heater Minimum of 2 ft 61 cm developed length of 3 4 pipe Air vent 3 4 Shut Off Valve Typ Temperature and pressure relief valve discharge line Combination gas control Water heater drain pan installed if required Flammable Vapour ensor 34 Gas Fired Water Heater heater Q 6 in 15 2 cm air Gap AD 3 4 Tempered domestic hot water supply to house Heat Trap T
76. stances such as bleach or cleaners See the Gas Valve LED Code Section of this manual for a list of diagnostic codes ADANGER A PROPERLY VENT THE WATER HEATER Failure to properly vent the water heater as outlined in the Vent and Combustion Air Inlet Section of the Installation Instructions in this manual can result in unsafe operation of the water heater To avoid the risk of fire explosion or asphyxiation from carbon monoxide never operate this water heater unless both the vent and combustion air inlet systems are properly installed Be sure to inspect both the vent and combustion air inlet for proper installation at initial start up and at least periodically thereafter Refer to the Care and Cleaning section of this manual for more information regarding vent and combustion air inlet system inspection A AWARNING Gasoline as well as other flammable materials and liquids which include but are not limited to adhesives solvents paint thinners etc and the vapours they produce are extremely dangerous DO NOT handle use or store gasoline or other flammable or combustible materials anywhere near or in the vicinity of a water heater or any other appliance Be sure to read and follow warning label pictured below and other labels on the water heater as well as the warnings printed in this manual Failure to do so can result in property damage bodily injury or death FIRE AND EXPLOSION HAZARD Can result in serious injury or de
77. stat W ABC Water temperature sensor is either 1 Check that all wiring is correct and secure o 0 e open or short circuited 2 Replace the combination gas control thermostat vV ABC Unit shuts down 1 Check for correct wiring to FV sensor eooeoe 2 Check for open circuits to FV sensor 3 Replace FV sensor V ABC Unit shuts down and in lockout 1 FV sensor detected presence of flammable eooooe vapours 2 Contact a service agency CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING CAUTION For your safety DO NOT attempt repair of gas piping combination gas control thermostat burners vent and or combustion air inlet systems or other safety devices Refer repairs to qualified service personnel 43 Replacement Parts For 40 50 65 and 75 Gallon Models equipped for use with Natural or Liquified Petroleum LP gas Instructions For Placing a Parts Order All parts orders should include 4 The model and serial number of the water heater from the rating plate 2 Specify type of gas Natural or Liquefied Petroleum LP gas as marked on the rating plate 3 Part description as noted below and num ber of parts desired Combustion 4 Refer to page 48 Air Inlet p RE i oupling ower Coupling pS Assembly E Anode Rod Combustion Air Inlet Ass
78. sure the T amp P Valve opening is not obstructed by the insulation Installing the Water Heater Heat Traps For increased energy efficiency some water heaters have been supplied with factory installed 3 4 in or in NPT heat trap fittings in the hot outlet line and cold water inlet line These heat trap fittings may require a minimum of one 1 90 3 4 in or 1 in NPT elbow and may require an additional 90 3 4 in or 1 in NPT elbow or a 3 4 in or in coupling depending on your model of water heater and installation needs See illustration of nipples and heat traps on page 44 Top Cap Installation For Certain Models Only Read these instructions thoroughly and make sure you understand all the steps and procedures before proceeding with the installation Carefully remove the Top Cap from the water heater carton Install the water heater as speci fied per this Use amp Care Manual Note Also see information as detailed in Water Supply Connec tions section Locate the small plactic bag containing the three 3 Dual Lock strips and two 2 sheet metal screws to be used to attach the Top Cap in the Use amp Care Manual bag Peel off one side of the Dual Lock strips and firmly press near the Top Cap mounting tabs do not cover holes and the inside center front of the rim on the Top Cap See diagram for detail Peel off the other side of the Dual Lock strips f NS and place the Top Cap on the top front
79. tered in the catch pan Catch pan kits are available from the store where the water heater was pur chased or any water heater distributor Make certain the floor underneath the water heater is strong enough to suf ficiently support the weight of the water heater once it is filled with water This gas fired water heater or any other appliance should not be installed in a space where liquids which give off flam mable vapours are to be used or stored Such liquids include gasoline LP gas butane or propane paint or adhesives thinners solvents and or combustible removers DO NOT obstruct or block the Flammable Vapour Sensor Because of natural air movement in a room or other enclosed space flammable vapours can be carried some distance from where liquids which give off flam mable vapours are to be used or stored The open flame of the water heater s main burner can ignite these vapours cre ating a shut down condition which will not allow the water heater to ignite FVIR certified gas water heaters can be installed on a residential garage floor without the use of an 18 in 46 cm stand in accordance with the CAN CSA B149 1 Natural Gas and Propane Installation Code for Canadian installations unless otherwise directed by Province The water heater must be located so it is not subject to physical damage for example by moving vehicles area flooding etc e We recommend this water heater be installed in locati
80. terminals of not less than 1 ft 30 5 cm above grade or average snowfall whichever is greater Insert lengths of vent and combustion air inlet pipes through the wall as shown e Allow sufficient length of pipe to extend beyond the exterior wall of the building for attachment of the vent riser assemblies as shown Place the supplied 1 2 in 1 3 cm mesh metal screens inside each terminal fitting NOTICE For cold climates the screens may be removed Connect the vent riser assemblies to the vent and combustion air inlet pipes which are extending out of the building e Ensure that the back of the 90 elbows are flush with the outside wall surface and that the vent and combustion air inlet terminations of the vent risers are parallel with the outside wall Front View Option 2 Front View Option 1 Ce of pipe Exhaust Vent Terminal 22 12 in Exhaust 30 5 cm min Vent Terminal 12 in gt Combustion 30 5 cm min Air Inlet Terminal Terminal assemblies to be parallel to wall Short piece of pipe IMPORTANT Remember to include the additional 90 elbows and vertical height of vent and combustion air inlet pipes of the vent riser when calculating the maximum equivalent vent and combustion air inlet system lengths The maximum equivalent vent and combustion air inlet system lengths must be as specified by Table 1 or 2 e The vent and combustio
81. the combustion air inlet connector fitting on the water heater s combustion air inlet tube assembly Support vertical and horizontal lengths of the vent and combustion air inlet systems as previ ously mentioned For 75 Gallon Power Direct Vent Models ONLY These water heater models are supplied with two 2 vent and combustion air inlet termi nation restrictors These restrictors help the water heater achieve peak efficiency when the water heater is installed using 3 in 7 6 cm diameter pipe at the minimum equivalent vent and combustion air inlet lengths of 8 ft 2m IMPORTANT Do not install the termination restrictors in equivalent vent and or combus tion air inlet lengths longer than 8 ft 2 m or on any other Power Direct Vent model NOTICE Termination Restrictors supplied for use with 75 Gallon models ONLY Exhaust Vent Combustion Air Inlet Terminal Wind Vane Terminal Slope horizontal pipe downward 1 8 in per foot 10 mm per m min 2 ft x 2 ft 60 cm x 60 cm Sheet Metal Shield on Brick or Masonry Walls Terminals with 1 2 in 1 3 cm Mesh Protective Screens Inside and Termination Restrictors Inside Min ft Optional Note Termination Restrictors 30 5 cm Condensate used on 75 Gallon l Management Drain Rear of Termination models ONLY Port Flush with Outside of Wall Inside of Outside of Building Building See Condensate Management Section for additional information a
82. water heater incorporates a combustion shut off device that shuts the operation of the water heater down if undesirable combustion conditions occur such as the presence of flammable vapours or blockage of the combustion air inlet and or vent systems Please contact a qualified service technician if this occurs 39 40 Care and Cleaning of the Water Heater ADANGER Combustible materials such as clothing cleaning materials or flammable liquids etc must not be placed against or next to the water heater Representative burner flame pattern NOTICE Refer to the Hydrogen Gas Caution in the Operating Instructions NOTICE Do not remove the anode rod from the water heater s tank except for inspection and or replacement as operation with the anode rod removed will greatly shorten the life of the glass lined tank and will exclude warranty coverage Housekeeping Make sure the Flammable Vapour Sensor is not blocked or obstructed DO NOT expose the Flammable Vapour Sensor to water solvents or cleaning agents Combustion Air Inlet and Vent System Inspection Inspect the combustion air inlet and vent systems Make certain that all joints are secure and that combustion air inlet and vent system supports are all in place Check the outdoor combustion air inlet and Burner Inspection Through the sight glass visually inspect the hot surface ignitor and main burner periodically Inspect the hot surface ign
83. y containing halogenated hydrocarbons IMPORTANT Do not apply heat to the HOT or COLD water connections If sweat connections are used sweat tubing to adapter before fitting adapter to the cold water connections on heater Any heat applied to the cold water supply fittings will permanently damage the dip tube and heat traps Corrosive Atmospheres The air in beauty shops dry cleaning establish ments photo processing labs and storage areas for liquid and powdered bleaches or swimming pool chemicals often contain halogenated hydro carbons An air supply containing halogenated hydro carbons may be safe to breathe but when it passes through a gas flame corrosive elements Thermal Expansion Determine if a check valve exists in the inlet water line Check with your local water utility company It may have been installed in the cold water line as a separate back flow preventer or it may be part of a pressure reducing valve water meter or water softener A check valve located in the cold water inlet line can cause what is referred to as a closed water system A cold water inlet line with no check valve or back flow prevention device is referred to as an open water system As water is heated it expands in volume and creates an increase in the pressure within the water system This action is referred to as ther mal expansion In an open water system expanding water which exceeds the capacity of th
84. y to allow the air to vent from the water heater and piping Condensation Condensation can form on the tank when it is first filled with water Condensation might also occur with a heavy water draw and very cold inlet water temperatures Drops of water falling on the burner can pro duce a sizzling or pinging sound Gas Supply The branch gas supply line to the water heater should be clean properly sized steel pipe or other approved gas piping material A union or ANSI design certified semi rigid or flexible gas appliance connector shall be installed in the gas line close to the water heater The Canadian Standards Association mandates a manual gas shut off valve See the CAN CSA B149 1 Natural Gas and Propane Installation Code for complete instructions Compound used on the threaded joints of the gas piping must be of the type resistant to the action of LP gas Use compound sparingly on male threads only Where a sediment trap is not incorporated as part of the appliance a sediment trap shall be installed downstream of the equipment shutoff valve as close to the inlet of the appliance as Leak Testing The water heater and its gas connections must be leak tested at normal operating pressures before it is placed in operation Turn on the manual gas shut off valve near the water heater A steady flow of water from all hot water faucet s indicates a full water heater Do not allow the flammable vapour sensor to beco
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