Atwood CH6-4E User Manual Download Page 36

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Electronic

Water Heaters

REPLACEMENT PART REFERENCE

January 2007

91092

110VAC

OFF

Switch (6 Gal.)

✗✗

91089

110VAC On/Off Switch (10 Gal.)

✗✗

91853

110 VAC Thermostat (Rect)

NLA

✗✗

91580

110 VAC Element (Bolt-on)

✗✗

91182

110VAC On/Off Switch & Jct Box

✗✗

92942

110VAC E.C.O.

✗✗

92943

110VAC 140° Thermostat

✗✗

91116

110VAC On/Off Switch & Jct Box

✗✗

92249

110VAC Elmnt/Gskt

(screw-in)

Kit

✗✗

✗✗ ✗✗

91873

Thermostat/E.C.O. 110 VAC

✗✗

91447

Front Mount E.C.O./thermostat

✗✗

✗✗ ✗✗

29A

91857

Drain Plug Kit 1/2"

✗✗

✗✗ ✗✗

29B

92698

Petcock Drain Valve 1/8"

WSL

✗✗

91604

Pressure Relief Valve - 1/2"

✗✗

✗✗ ✗✗

90028

Pressure Relief Valve - 3/4"

✗✗

✗✗ ✗✗

31A

91859

Switch 12 VDC-White

✗✗

31A

91959

Switch 12 VDC-Black

✗✗

31B

91230

Switch 12 VDC-White Combo

✗✗ ✗✗

93866

Thermal Cut-off

✗✗

✗✗ ✗✗

N/S

90145

Fuse, Mini 2AMP

✗✗

✗✗ ✗✗

N/S

93849

Relay

✗✗ ✗✗

N/S

91222

Junction Box 110V - 6 gal

✗✗

N/S

91224

Junction Box 110V - 10 gal

✗✗

N/S

91223

Junction Box Cover for 6 gal

N/S

94231

Recessed Flange - 10 gal

N/S

94514

Recessed Flange - 6 gal

GCH6-4E, GCH6-6E, GCH6-7E, GC6A-7E

GH6-6E, GH6-7E, GH6-8E

G6A-6E, G6A-7E, G6A-8E

GCH6A-7E, GCH6A-8E, GCH6A-9E

GC6AA-7E, GC6AA-8E, GC6AA-9E

GCH10A-2E, GCH10A-3E, GC10A-2E, GC10A-3E

G10-1E, GH10-1E

G610-3E, GH610-3E

G10-2E G10-3E

GC10-1E, GC10-2E

GH10-2E, GH10-3E

G6A-2E, GH6-3E

G6A-3E, GH6-3E. GH6-4E, G6A-4E

GCH6A-10E, GC6AA-10E

GC10A-4E, GCH10A-4E

Summary of Contents for CH6-4E

Page 1: ...Heater Conversion 3E to 4E 9E 10E 24 4E 10E Sequence of Operation Quick Diagnostic 25 General Water Heater Information Questions 26 Pressure Temperature Relief Valve Water Heater Tank Corrosion Atwood...

Page 2: ...150 PSI SS 93882 EHM11 SM FHX 11 GAL INTERNAL HEAT EXCHANGER SINGLE LOOP 150 PSI EHM11 SM FHX 11 GAL INTERNAL HEAT EXCHANGER SINGLE LOOP 75 PSI 94550 EHM11 SM FHX SS 11 GAL INTERNAL HEAT EXCHANGER SIN...

Page 3: ...gas control can gas pressure be tested Can the pilot flame be adjusted What is minimum millivolt output of the thermocouple required for proper gas control operation How can you test a thermocouple H...

Page 4: ...new water heater tank with this option is the only way to obtain this feature Skin mounting allows the water heater to be hooked up with plumbing and electrical before the sidewall is erected The tank...

Page 5: ...or a blown E C O on a gas control Magnet Assembly Thermocouple Tester This assembly can be obtained at an electronics or hardware store This same assembly can also be removed from a Robertshaw control...

Page 6: ...s have a port to test gas pressure through the valve This can be accomplished by removing the cover screw and inserting a 1 8 pipe nipple After attaching your manometer hose to this fitting the manome...

Page 7: ...to thermocouple Trips permanently open if water temperature exceeds 190 F MAIN BURNER OPERATION Gas Control supplies gas to main burner when control knob is set to ON position and the temperature leve...

Page 8: ...me should be mainly blue with a trace of yellow and fairly quiet If it is not adjust the gas pressure to 11 W C ensure that the main burner air shutter is 1 4 way open and verify that the main burner...

Page 9: ...rner air shutter approximately 1 4 open Blocked U tube Remove blockage Gas control out of calibration Replace gas control ERRATIC MAIN BURNER FLAME Improper gas pressure Set inlet pressure to a minimu...

Page 10: ...limit of the ECO on pilot model gas control valves This gas control valve contains a one shot ECO When this ECO blows the control is completely non functional and must be replaced THIS IS A NON WARRAN...

Page 11: ...portion of the water heater is not heating water the following diagnostic steps and repairs should be investigated Turn POWER OFF to the appliance before removing junction box cover Perform the follow...

Page 12: ...10VAC to the unit measure voltage across the black and white lead to the appliance with POWER ON If none trace wiring back and make appropriate wire repair Perform the following steps with POWER OFF t...

Page 13: ...hat is the minimum voltage needed for operation What is the proper wiring hook up for the water heater circuitry Can the Circuit Board Tester be used on both Fenwal and Channel circuit boards How can...

Page 14: ...s erected This heater has a comparable if not superior anode type protection for the tank The tank is manufactured with a clad aluminum lining that protects against corrosion but does not need to be r...

Page 15: ...aters It is a simple table top device that will diagnose the following items on a circuit board power circuit sense circuit spark generation and the lock out mode For use on circuit boards with a flyi...

Page 16: ...gnition system For a period of 6 8 seconds the circuit board will send voltage to both the gas solenoid valve and the electrodes The board is a 3 try for ignition If ignition does not occur after thre...

Page 17: ...connection on circuit board Electrodes loosely attached to main burner Secure electrodes to main burner Improper electrode gapping Re position spark gap to 1 8 and into path of flame Dirty electrodes...

Page 18: ...pproximately 1 4 way open Flame should be mainly blue and quiet Poor main burner alignment Adjust valve and main burner alignment Misaligned burner flame spreader Align flame spreader so it is square...

Page 19: ...harness 2 CHECK THE INTEGRITY AND POSITION OF THE SPARK PROBE ASSEMBLY The gap between the sparking probe and the ground probe should be 1 8 inch The probes should be clean and free of cracks flaking...

Page 20: ...elf can be intermittent With linear converters the 12 VDC varies depending on the 115 VAC If the 115 VAC is high then the 12 VDC will be high and if the 115 VAC is low then the 12 VDC will be low If t...

Page 21: ...blown determines whether it is covered under Atwood s warranty as stated in section B C and D THERMAL CUT OFF DEVICE Current Atwood direct ignition water heaters are equipped with a thermal cut off d...

Page 22: ...per operation after servicing CAUTION Wiring Schematic G6A 7E GH6 7E GC6A 7E GCH6 7E GC6AA 7E G6A 8E GH6 8E GC6AA 8E GCH6AA 8E GCH6A 9E Valve Red Red Red White Circuit Board Brown Brown Blue Green Red...

Page 23: ...oving most of the components for the electric portion of the water heater to the outside except the element and relay which remain in a junction box in the rear One module board controls both gas and...

Page 24: ...ow The electric switch and all other AC wiring with the exception of the power into the back of the water heater must be eliminated WIRING OF NEW COMBO SWITCH The new combo switch will be wired using...

Page 25: ...10 V to the element Quick Diagnostic GC10A 4E GC6A 10E Following the sequence of operation No power to board through the orange or white wire Test for power into wall switch If no power check wiring f...

Page 26: ...n unit is in heating cycle How can weeping pressure temperature relief valves be reduced or eliminated What are the proper draining procedures to help reduce lime deposits and extend tank life Will a...

Page 27: ...flow A white scaly material aluminum oxide often is formed around the points where the heaviest action is taking place and heat accelerates the process Severity of the problem varies considerably in d...

Page 28: ...uently or for long periods of time flushing the water heater several times a year will prolong the life of the storage tank WINTERIZING FLUSHING INSTRUCTIONS To insure the best performance of your wat...

Page 29: ...ter Terminology Definition Main Burner a gas and air mixing tube Main Burner Air Shutter the slotted sleeve on tube that allows for gas and air adjustment Main Burner Orifice a precision drilled fitti...

Page 30: ...gal screw in heating element 6 gallon bolt on heating element 10 gallon bolt on heating element 26 27 25 23 24 29 28 30 10 22 23 2 14 13 21 1 First number in matrix refers to illustration number the s...

Page 31: ...0 Gallon 7 92742 Main Burner Orifice 6 Gal 93914 Main Burner Orifice 10 Gal 8 91441 90 Elbow 3 8 x 3 8 92741 Main Burner Orifice Elbow outlet 9 91603 Jade Pilot 10 91858 Door Hardware Kit 11 91514 Acc...

Page 32: ...GC10 2 GC10 2P G10 2 G10 2P G4SM 24 92942 110VAC E C O Switch NLA 25 92943 110VAC 140 Thermostat 26 91092 110VAC On Off Rocker Switch 6 Gal 91089 110VAC On Off Rocker Switch 10 Gal 27 91853 110 VAC Th...

Page 33: ...6 gallon bolt on heating element 16 17 18 21 19 6 gallon screw in heating element 24 23 25 10 gallon screw in heating element 24 19 25 6 gallon screw in heating element 10 gallon screw in heating elem...

Page 34: ...12VDC electronic thermostats Brown Brown Red Red 15 A 1 12 8 9 10 11 11 5A 4B 33 31B 4 30 4A 29B 7 2 3 12 12 13 15 14 31A 25 28 8A 28 29A First number in matrix refers to illustration number the secon...

Page 35: ...93243 Gas Valve Bracket 6 Gal No Longer Available Use with 93870 93862 Gas Valve Bracket 10 Gal No Longer Available Use with 93870 8B 94787 Gas Valve Bracket 1 piece 9 91563 Orifice Holder 10 92742 O...

Page 36: ...Pressure Relief Valve 1 2 30 90028 Pressure Relief Valve 3 4 31A 91859 Switch 12 VDC White 31A 91959 Switch 12 VDC Black 31B 91230 Switch 12 VDC White Combo 33 93866 Thermal Cut off N S 90145 Fuse Mi...

Page 37: ...k on last turn 4 Assemble tee to ball valve using a minimum of three wraps of teflon tape 5 Install valve tee assembly to elbow using a minimum of three wraps of teflon tape 6 Finish turn on completed...

Page 38: ...3 93191 93191 Wiring Harness Faisceau lectrique 15 93866 93866 Thermal Cut Off Coupure thermique 16 93868 93868 Spark Probe D tecteur d tincelle 17 91547 91547 ECO T STAT kit Thermostat HEAT EXCHANGE...

Page 39: ...39 4 6 5 O F F O N 3 MIXING VALVE BALL VALVE 6 WINTERIZED IN USE MIXING VALVE BALL VALVE...

Page 40: ...E GCH6A 9E GCH6A 10E GEH9 EXT GC6AA 7E GC6AA 8E GC6AA 9E GC6AA 10E GE9 EXT GC10 1 GC10 2 GC10A 2 GC10A 3 HEAT EXCHANGE GH6 3 GH6 6 GH6 7 NO REPLACEMENT TANK FOR G6A 3E MODELS 91411 91412 91591 91592 9...

Page 41: ...ear Mounting Bracket 4 6 gal 91499 Front Rear Mounting Bracket 11 20 gal 8 91580 Heating Element 110V and gasket 91581 Heating Element 220V and gasket 9 92679 Gasket Heating Element 110V 91098 Gasket...

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