Rheem VentMaster GP100-150 Use And Care Manual Download

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Replacement Parts

Instructions For Placing a Parts Order

All parts orders should include:

The model and serial number of the water heater from the rating

plate.

Specify type of gas (natural or LP) as marked on the rating plate.

Part description (as noted below) and number of parts desired.

CAUTiON:

For your safety DO NOT attempt repair of

gas piping, gas control (thermostat), burners, vent con-

nectors or other safety devices. Refer repairs to qualified

service personnel.

Blower Assembly

T&P Valve

Handhole Sealplate
Gasket SP5886
(Beneath Cover)

Drain Valve

Thermostat

Ignition Control
Assembly
w/ Relay*

Gas Valve

Burner Assembly

Pilot/Ignitor
Assembly

*Some assembly components are available individually
(Control Module, Transformer, and ON/OFF Switch).

Summary of Contents for VentMaster GP100-150

Page 1: ...er service agency or the gas supplier WARNING If the information in these instructions are not followed exactly a fire or explosion may result causing property damage personal injury or death NOTICE This water heater is designed for use in a commercial application and the installation and maintenance of it should be per formed by a qualified licensed service personnel If the foregoing assumption i...

Page 2: ...read and obey all safety messages This is the safety alert symbol Recognize this symbol as an indication of Important Safety Information This symbol alerts you to potential hazards that can kill or hurt you and others All safety messages will follow the safety alert sym bol and either the word DANGER WARNING CAUTION or NOTICE These words mean DANGER An imminently hazardous situation that will resu...

Page 3: ...w illustrates the thermostat and how to adjust the water tem perature Hotter water increases the Potential for HotWater SCALDS NOTICE Mixing valves are available for reducing point of use water temperature by mixing and cold water in branch water lines Contact a licensed plumber or the local plumbing authority for further information D A N G E R HOT Water temperature over 125 F can cause severe bu...

Page 4: ...ther flammable materials and liquids adhesives solvents etc and the vapors they produce are extremely dangerous DO NOT handle use or store gasoline or other flammable or combustible materials any where near or in the vicinity of a water heater Be sure to read and follow the warning label pictured below and other labels on the water heater as well as the warnings printed in this manual Failure to d...

Page 5: ...light ing the vapor of any flammable liquids which may be improperly stored or accidentally spilled C All models are certified for installation on combustible floors and in alcoves The minimum side and top clearance to walls and ceiling for providing protection of combustible materials are shown on the water heater s rating label A front clearance of 18 inches 46 cm should be provided for adequate...

Page 6: ...ecial instructions are required for any specific water heater they will be included in the bag Cap or plug unused connections Use only clean new galvanized steel copper or approved plastic pipe for water connections Local codes or regulations shall govern the exact type of material to be used The installation of unions on the inlet and outlet water lines and a shut off valve in at least the cold w...

Page 7: ... section on pages 8 11 in this manual NOTES 1 The gas supply piping must be adequately supported and aligned to minimize loads forces on the water heater s gas valve and burner system 2 R efer to local codes for installation guide lines for the Thermal Expansion Tank if required Thermal Expansion Tank if required Installation Figure 4 Typical Installation Drawing Vacuum Relief Valve Not Supplied I...

Page 8: ...erwise secure the vent ing system in a way that restricts the normal thermal expansion and contraction of the chosen venting material If the water heater is being installed as a replacement for an existing power vented water heater a thorough inspection of the existing venting system must be performed prior to any installation work Verify that the correct materials as detailed above have been used...

Page 9: ... location of the vent terminal depends on the minimum clearances and consider ations shown in the charts on pages 11 and 12 Number of 90º Elbows with Vent Terminal Number of 45º Elbows Minimum Pipe Length Required Ft Maximum Pipe Length Ft Inlet Vent Outlet Vent One 1 One 1 None 10 0 45 0 One 1 One 1 One 1 7 5 42 5 Two 2 Two 2 None 5 0 40 0 Two 2 Two 2 One 1 2 5 37 5 Three 3 Three 3 None 5 0 35 0 ...

Page 10: ...ix 6 feet of vent terminal 6 All painted surfaces should be primed to lessen the chance of physical damage Painted surfaces will require maintenance 7 Insulate vent pipe exposed to cold conditions attics crawl spaces etc to help prevent moisture from accu mulating in vent pipe Moisture in the flue gas will condense as it leaves the vent terminal In cold weather this condensate can freeze on the ex...

Page 11: ...ort piece of vent pipe VERTICAL VENT TERMINAL LOCATION The location of vertical vent terminal depends on the following considerations see Figure 8 1 Minimum twelve 12 inches above roof 2 Minimum twelve 12 inches above anticipated snow level D V V E FIXED CLOSED OPERABLE OPERABLE FIXED CLOSED v v B L F C B v v v X B B B A J C I H X v M K v G A The following information should be used for determinin...

Page 12: ...vent The drain hose should have two 2 loops formed to act as traps Before operation of the water heater both loops should have water placed in them Support the traps so that they remain horizontal Condensate is known to be acidic refer to local state or federal codes for proper handling methods JOINING PIPES AND FITTINGS All pipe fittings solvent cement primers and procedures must conform to Ameri...

Page 13: ... 195 180 170 160 150 130 120 110 100 1 1 4 1 380 1 050 730 590 500 440 400 370 350 320 305 275 250 225 210 1 1 2 1 610 1 600 1 100 890 760 670 610 560 530 490 460 410 380 350 320 2 2 067 3 050 2 100 1 650 1 450 1 270 1 150 1 050 990 930 870 780 710 650 610 2 1 2 2 469 4 800 3 300 2 700 2 300 2 000 1 850 1 700 1 600 1 500 1 400 1 250 1 130 1 050 980 3 3 068 8 500 5 900 4 700 4 100 3 600 3 250 3 000...

Page 14: ...ctions If you cannot reach your gas supplier call the fire department Use only your hand to turn the gas control knob Never use tools If the knob will not turn by hand don t try to repair it call a qualified service technician Force or attempt to repair may result in a fire or explosion C Do not use this appliance if any part has been under water Immediately call a qualified ser vice technician to...

Page 15: ...EQUIPPED WITH AN IGNITION DEVICE WHICH AUTOMA TICALLY LIGHTS THE PILOT DO NOT TRY TO LIGHT THE PILOT BY HAND TURN THE GAS CONTROL KNOB CLOCK WISE TO OFF 5 WAIT FIVE 5 MINUTES TO CLEAR OUT ANY GAS IF YOU THEN SMELL GAS STOP FOL LOW B IN THE SAFETY INFORMATION ABOVEON THIS LABEL IF YOU DON T SMEL L GAS 6 GO TO NEXT STEP TURN THE GAS CONTROL KNOB COUNTER CLOCKWISE TO ON 7 IF THE APPLIANCE WILL NOTOPE...

Page 16: ...f Use the following formula DO NOT exceed Input shown on the water heater s rating plate 16 Operation A Do turn off manual gas shut off valve if water heater has been sub jected to over heating fire flood physical damage or if gas supply fails to shut off B Do Not turn on water heater unless it is filled with water C Do Not turn on water heater if cold water supply shut off valve is closed D Do No...

Page 17: ... least yearly to make certain the passageways are free and unobstructed and that the vent connector from the water heater s blower assembly is properly posi tioned and securely attached Remove any obstructions in vent con nector or vent terminal C CONTROLS The manifold pressure and controls should be checked at least yearly by a qualified service technician To insure accuracy for rating clock enou...

Page 18: ...ter Any new installation should have a tank inspection program set up initially for frequent inspection The first inspection should be within a six month period Once the scaling tendencies have been established the inspection program can be modified to suit the water conditions Cleaning should be performed if the scale has accumulated above the drain valve opening A wet dry shop vac with a nozzle ...

Page 19: ...ther mostat is functioning calling for heat and 24VAC power is being supplied to the relay to turn on the blower and the N C terminal of the pressure switch with N C and N O terminals Refer to Section 2 of Troubleshooting Guide IGNITION When illuminated this red LED indicates that 24 VAC power is being supplied to the Ignition Control Module and the ignition sequence has begun The N O side of the ...

Page 20: ...er or fuse and field connec tion of branch circuit wiring to leads of switch Repair or replace as required Is POWER LED now illuminated Is 120 VAC power present between the Black and White wires to the transformer Is 24 VAC power present between the Yellow and Gray wires from the transformer The System Senti nel Panel is defective and must be replaced Replace Switch then verify that power is prese...

Page 21: ...rvicing controls Wiring errors can cause improper and dangerous operation VERIFY PROP ER OPERATION AFTER SERVICING Ensure that power is being supplied to the water heater Refer to Section 1 the POWER LED in thisTroubleshooting Guide and correct if necessary Is the THERMO STAT LED now illuminated Ensure that power is being supplied to the water heater Refer to Section 1 the POWER LED in thisTrouble...

Page 22: ...ure Switch Is continuity good The Thermostat has called for heat the Blower is running and 24VAC power is being supplied to the Ignition Control Module and the ignition sequence will begin YES YES YES YES NO NO NO NO NO Is the Ignition LED Illuminated Is there 120 VAC across Black wire and White wire of blower YES NO Is there 120 VAC between the black wire at the relay and the whitewireonthe trans...

Page 23: ... the ECO Energy Cut Off Device inside of theThermostat YES YES YES YES NO NO NO NO NO Refer to Section 5 the ECO LED in theTroubleshooting Guide NO NO Is the PILOTVALVE LED Illuminated 1 Remove Ignition Cable and check for good conti nuity replace if necessary 2 Check Ignitor Electrode gap for proper spacing 1 8 to 5 32 Correct if necessary 3 Examine Ceramic Insulator on Pilot Assembly for cracks ...

Page 24: ... Is the Spark Ignitor operating Can sparking be heard Ignition Control Module is inoperative and must be replaced Main GasValve is inoperative and must be replaced Is the inlet gas pressure at or below the maximum as specified on the rating plate Check Continuity of Blue and White wires between Ignition Control Module and Gas Control Valve Repair or replace as required to restore power to gas valv...

Page 25: ... of parts desired CAUTION For your safety DO NOT attempt repair of gas piping gas control thermostat burners vent con nectors or other safety devices Refer repairs to qualified service personnel Blower Assembly T P Valve Handhole Sealplate Gasket SP5886 Beneath Cover Drain Valve Thermostat Ignition Control Assembly w Relay Gas Valve Burner Assembly Pilot Ignitor Assembly Some assembly components a...

Page 26: ... MV THERM B L O W E R 2 1 4 6 5 5 1 2 0 V 2 4 V L 1 L 2 3 MGV AX4729 PGV HONEYWELL VR8304P OR VR8304M GAS VAL VE HONEYWELL S8600M IGNITION CONTROL IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THIS APPLIANCE MUST BE REPLACED IT MUST BE REPLACED WITH 18 GA 600V 105 C WIRE OR ITS EQUIVALENT N O R M A L O P E R A T I O N S E Q U E N C E I N D I C A T E D B Y B O X E D N U M E R A L S POWER LED IGNITIO...

Page 27: ...EPLACEMENT WIRE MUST BE RATED FOR 250 C NORMAL OPERATION SEQUENCE INDICATED BY BOXED NUMERALS ECO LED PILOT VALVE LED MAIN VALVE LED C NC NO W GR YL BK R 1 R8 G2 BK 2 W4 BK3 BL6 BLOWER GY 5 Y6 M R 3 BLOWER Y2 C NC PS2 PS1 Y 5 Y7 RELAY 3 4 6 5 2 R N C S W 4 2 Figure 14 Diagrams for units supplied with HoneywellVR8304P orVR8304M GasValve and Honeywell S8600M Ignition Control CAUTION Label all wires ...

Page 28: ...mercial listings or local utility for qualified service assistance 2 Should your problem not be solved to your complete satisfaction you should then contact the Manufacturer s National Service Department at one of the following address In The U S A Rheem Manufacturing Co Water Heater Division 2600 Gunter Park Drive Montgomery Alabama 36109 1413 Phone 1 800 432 8373 In CANADA Rheem Canada Ltd Ltée ...

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