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Front Cover

The front cover has two molded
posts at the top which fit into
holes at the top of the tank. A
magnetic catch at the bottom
holds the cover in place.

To remove, pull the cover out at
the bottom and lift approximately
an inch to clear the posts at the
top.

Removing the cover provides
access to the heating element
covers and the drain valve.

Содержание GEH Series

Страница 1: ...tion Nov 2009 JJ 9 3 09 http waterheatertimer org Review GE Heat Pump water heater html http waterheatertimer org Which is best hybird heat pump water heater html http waterheatertimer org Review GE Heat Pump water heater html ...

Страница 2: ...terpretation of this information nor can it assume any liability in connection with its use WARNING To avoid personal injury disconnect power before servicing this product If electrical power is required for diagnosis or test purposes disconnect the power immediately after performing the necessary checks RECONNECT ALL GROUNDING DEVICES If grounding wires screws straps clips nuts or washers used to...

Страница 3: ...3 ...

Страница 4: ...asses with side shields cut resistant Dyneema gloves steel toe shoes for all repairs Dyneema Cut Resistant Glove Safety Glasses must be compliant with ANSI Z87 1 2003 Prescription Safety Glasses Plano Safety Glasses Steel Toe Shoes Personal Protection Equipment ...

Страница 5: ...Electric 50 Gallon Capacity 240 VAC 30 Amp circuit LCD Electronic Control Two 4500W Heating Elements 134a Sealed System 26 5 oz Temp Set Range 100 F 140 F Operating Pressure 20 120 psi Product Weight 200 lbs 22 62 ...

Страница 6: ... pump water heaters Energy Factor 2 35 EF Designed to use approximately half the energy and save 320 per year Standard 50 gallon electric water heater uses 4880 kWh per year GE s new water heater uses 1856 kWh per year Energy Star requirement is 2 0 EF or higher Based on 10 65 cents per kWh ...

Страница 7: ...7 Household Energy ...

Страница 8: ...8 Exploded View ...

Страница 9: ...9 The condenser is wrapped around the tank foamed between the tank and the outside cabinet The condenser is non replaceable Condenser ...

Страница 10: ...10 Right Side View ...

Страница 11: ...11 Rear View ...

Страница 12: ...12 Left Side View ...

Страница 13: ...13 Model Serial Location The model tag is located on the right front of the tank ...

Страница 14: ...14 Nomenclature Contract model has High Demand keypad on display All other features are the same for both models ...

Страница 15: ...15 Warranty ...

Страница 16: ...16 ...

Страница 17: ...17 Air Flow ...

Страница 18: ...18 Installation Location 5 minimum 7 recommended ...

Страница 19: ...19 Installation Electric 240VAC 30 Amp Circuit L1 L2 Ground No neutral wire ...

Страница 20: ...20 Junction Box The junction box cover is held with 3 Phillips screws ...

Страница 21: ...21 Installation Pressure Relief Valve ...

Страница 22: ...ow tube is connected during installation Easy to miss location of recessed nozzle for main drain hose 6 main drain hose should be directed towards suitable floor drain Condensate water volume is equivalent to a small dehumidifier or 4000 BTU air conditioner Overflow tube nozzle Main drain nozzle ...

Страница 23: ...23 Drain Hole Locations Primary drain Overflow drain ...

Страница 24: ...24 Evaporator Seal Primary drain Overflow drain Evaporator Seal The seal below the evaporator forces all airflow to pass through the filter and not under the bottom of the evaporator Sealing lip ...

Страница 25: ...25 Control Display ...

Страница 26: ...bines the energy efficiency of eHeat with the recovery speed and power of the electric elements The control automatically uses efficient eHeat unless the majority of hot water is consumed Standard Electric Mode uses the upper and lower heating elements to heat the water Heats water the fastest but is the least energy efficient mode High Demand Mode use this mode if your household has higher than a...

Страница 27: ...ent 2 Lower heating element 3 Condenser Only ONE heating source can be on at a time The upper heating element has priority If a large temperature increase is required the upper element is used except in eHeat The lower element and condenser are both considered lower heat sources ...

Страница 28: ...28 Mini Manual The mini manual is taped to the inside of the front cover Four Phillips screws 2 on each side hold the covers together ...

Страница 29: ...29 Cover Installation The covers have a lip that fits into a groove in the base When reinstalling use the filter to hold the rear cover in place ...

Страница 30: ...ensors Four of the sensors provide the control with sealed system information The T2 sensor provides info on the tank temperature All sensors have a negative coefficient resistance As the temperature increases the resistance value decreases ...

Страница 31: ...31 T5 Ambient Sensor T4 Compressor Outlet T3b Evaporator Outlet T3a Evaporator Inlet ...

Страница 32: ...32 Sensor Chart ...

Страница 33: ...33 T2 Sensor Sensor Description Normal temperature range Resistance range in ohms Resistance at 77 F T2 Tank 30 F 160 F 34K 1 75K 10K ...

Страница 34: ...rature Just before the compressor starts controls checks to ensure T2 sensor temperature is between 30 F and 160 F The sensor is considered open if the voltage at the board is greater than 4 88VDC and shorted if less than 098VDC A T2 sensor fault is considered a critical failure and will completely shut the system down causing no hot water CONTROL BOARD ...

Страница 35: ...35 T3a Sensor Sensor Description Normal temperature range Resistance range in ohms Resistance at 77 F T3a Evaporator Inlet 15 F 130 F 57K 3K 10K ...

Страница 36: ... between T3a and T3b is greater than 5 F after 30 minutes of run time 4 Using T5 ambient sensor verifies T3a is at least 10 F less than room temperature while sealed system is running 5 The T3a T3b and T5 sensors are all within 15 F of each other before the compressor starts The sensor is considered open if the voltage at the board is greater than 4 88VDC and shorted if less than 098VDC If any of ...

Страница 37: ...37 T3b Sensor Sensor Description Normal temperature range Resistance range in ohms Resistance at 77 F T3b Evaporator outlet 15 F 130 F 57K 3K 10K ...

Страница 38: ...T3a and T3b is greater than 5 F after 30 minutes compressor run time 2 The T3a T3b and T5 sensors are all within 15 F of each other before the compressor starts The sensor is considered open if the voltage at the board is greater than 4 88VDC and shorted if less than 098VDC If any of the above tests fail the control will stop the sealed system and operate the water heater in electric mode ...

Страница 39: ...39 T4 Sensor Sensor Description Normal temperature range Resistance range in ohms Resistance at 77 F T4 Compressor outlet 30 F 250 F 188K 2K 55K ...

Страница 40: ...risen at least 20 F during the 1st 30 min 2 Outlet temp is greater than 120 F after the 1st 30 min 3 Outlet temp never exceeds 240 F while operating The sensor is considered open if the voltage at the board is greater than 4 88VDC and shorted if less than 098VDC If any of the above tests fail the control will stop the sealed system and operate the water heater in electric mode ...

Страница 41: ...41 T5 Sensor Sensor Description Normal temperature range Resistance range in ohms Resistance at 77 F T5 Ambient 15 F 130 F 57K 3K 10K ...

Страница 42: ... confirm 1 Ambient temperature is between 45 F and 120 F 2 The T3a T3b and T5 sensors are all within 15 F of each other before the compressor starts The sensor is considered open if the voltage at the board is greater than 4 88VDC and shorted if less than 098VDC If any of the above tests fail the control will stop the sealed system and operate the water heater in electric mode ...

Страница 43: ...43 Initial Startup The green LED above the POWER pad must be lit for the water heater to operate Press the POWER pad to start the unit The display blanks after 5 minutes of inactivity ...

Страница 44: ...44 Upon power up default settings are Hybrid Mode and a water temperature of 120 F ...

Страница 45: ...control will run the sealed system for 5 minutes and monitor the tank temperature from the T2 sensor If the control sees a temperature rise of more than 1 5 degrees it assumes the tank is empty shuts off heat and displays a warning to fill the tank a full tank would absorb the heat and the temperature increase would take longer NOTE If power is lost while the power LED is ON when power is restored...

Страница 46: ... between 45 F 120 F and evaporator above 32 F Start sealed system The upper limit avoids a compressor overheat the lower limit prevents liquid refrigerant from entering the compressor as well as inefficiency due to the lack of heat in the air ...

Страница 47: ...47 The speed at which the temperature drops determines when and what heat source the control uses to recover Temperature Chart Rate Of Decay ...

Страница 48: ...48 eHeat Mode Note Evaporator fans run for 10 minutes after compressor cycles off Water temperature 5 F less than set point or 1 F less if water has been used Start sealed system ...

Страница 49: ...49 Standard Electric Mode ...

Страница 50: ... than set point Use Lower Element Water temperature 1 F less than set point and water has been used Use Lower Element Water temperature 25 F less than set point Use Upper Element until 7 F less than set point then Use Lower Element ...

Страница 51: ...51 Hybrid Mode ...

Страница 52: ...een used less than 10 gallons Use Sealed System Large amount of water has been used 20 30 gallons Use Lower Element Water temperature 30 F less than set point Use Upper Element until 7 F less than set point then Lower Element if large water flow during upper element on time Sealed System is no water flow during upper element on time ...

Страница 53: ...53 High Demand Mode ...

Страница 54: ... been used less than 10 gallons Use Sealed System Medium amount of water has been used 10 20 gallons Use Lower Element Water temperature 20 F less than set point Use Upper Element until 7 F less than set point then Lower Element if medium flow during upper element on time Sealed System is no water flow during upper element on time ...

Страница 55: ...55 Control Boards Membrane ribbon Anti static ground ...

Страница 56: ...56 Housing removed Main Control Board Power Supply Board LCD ...

Страница 57: ...57 Limited access with the control boards in place Membrane ribbon ...

Страница 58: ...58 Removing 4 Phillips screws 2 on each side and a ground screw allows the control housing to tilt forward ...

Страница 59: ...59 Accessible for service ...

Страница 60: ...rrent sensor Demand response Sensors Evaporator fans RY3 Lower Element RY2 Upper Element RY1 Double Line Break Main control board Power supply board 12 VDC from power board Membrane connector RY4 Compressor ...

Страница 61: ...or enables the control to determine when the compressor upper element and lower element are operating The control checks the component 5 seconds after powered and every 10 minutes thereafter Compressor 1 5 amps Heating Elements 10 amps ...

Страница 62: ...o 12VDC evaporator fans operate simultaneously to draw air through the evaporator and exhaust it out the rear cover The fans run at the same RPM If either fan fails a fault is recorded and the unit switches to electric mode ...

Страница 63: ... low the fans run at a higher speed to move additional air across the evaporator The average fan speed based on average room temperature is approximately 3000 RPM which is 56 dBA The fans run for 90 seconds before the compressor starts and for 10 minutes after the compressor cycles off NOTE Unless the unit switches to electric mode which turns the fans off immediately ...

Страница 64: ...to holes at the top of the tank A magnetic catch at the bottom holds the cover in place To remove pull the cover out at the bottom and lift approximately an inch to clear the posts at the top Removing the cover provides access to the heating element covers and the drain valve ...

Страница 65: ...tandard garden hose fitting After attaching an appropriate length hose use a flat bladed screwdriver to open the valve The Use Care manual recommends the consumer drain several quarts of water from the tank every month to prevent sediment buildup in the bottom of the tank ...

Страница 66: ...ure relief valve disconnect power turn off the water supply and open a faucet somewhere in the home Drain the tank to the appropriate level and make the necessary repair NOTE When flushing or draining the tank always allow water to flow for several minutes at a tub faucet after the repair This will help to purge any air from the system and remove any stirred up sediment which could clog other home...

Страница 67: ...67 Heating Element Covers Each cover is held by two T15H Torx security screws The Styrofoam insulation under the cover pulls straight out ...

Страница 68: ...tandard counter clockwise to loosen clockwise to tighten The torque on the heating element is approximately 25 foot lbs The heating element threads will bottom just after the heating element gasket seats to the tank Heating Elements ...

Страница 69: ...69 A 1 heating element wrench is available under the part number WX05X10103 The wrench is capable of using a drive ratchet a large Phillips screwdriver or a 3 8 pry bar handle Lower element ...

Страница 70: ...at 4500 watts at 240V The current draw is approximately 18 75 amps and the resistance is 12 8 ohms The control will record a heating element fault if the current is less than 10 amps when the element relay on the board is energized The overall length of the heating element is 14 inches ...

Страница 71: ... safety from tank overheating TCO 2 trips at 170 F and breaks both L1 and L2 TCO 1 trips at 160 F and breaks the L1 circuit If either TCO opens all heating sources upper element lower element and compressor are disabled Both thermal cutouts require a manual reset ...

Страница 72: ... remove the two Phillips screws holding the bracket and dielectric barrier over the thermal cutouts If a thermal cutout has opened suspect a shorted relay on the control board T2 tank sensor problem or a failure of the cutout itself ...

Страница 73: ...er the cutout to provide additional conductivity between the tank and the TCO It is not necessary to apply additional paste if the cutout needs to be replaced Never just reset a thermal cutout without determining the reason for the circuit opening ...

Страница 74: ...tem backing up the T4 compressor outlet sensor The normally closed switch is designed to open the compressor circuit if the discharge pressure exceeds 400 psi It will reset once the pressure drops below 300 psi If the switch opens within 1 2 minutes of compressor start up check for a sealed system restriction ...

Страница 75: ...t stationary while turning the upper 9 16 nut in a counter clockwise direction to remove the switch NOTE There are two reasons for using care when removing the switch 1 The wires twist as the switch is unscrewed so care is needed to prevent damaging the wires ...

Страница 76: ...76 2 The switch uses a built in plunger to engage a Schrader valve in the lower assembly Once loose it must be removed quickly to avoid leaking excessive refrigerant ...

Страница 77: ...he valve assembly can be used to recover refrigerant from the system When reinstalling the switch pre twist the wires several turns in a counter clockwise direction so the wires are straight when the switch is tightened in place ...

Страница 78: ...78 Refrigerant Charging To charge the sealed system install a valve on the low side of the compressor where the process stub was located Charge the system with 26 5 ounces of R134a refrigerant ...

Страница 79: ...79 Thermal Expansion Valve TXV ...

Страница 80: ... The TXV consists of a valve spring and diaphragm attached to a capillary bulb filled with a small amount of a blended refrigerant primarily R134a The TXV is designed to provide a fixed superheat of approximately 10 F ...

Страница 81: ...y 10 F T3b T3a Superheat is the temperature of a gas above the boiling point for that liquid If a refrigerant liquid boils at a temperature of 40 F in a cooling coil and then the refrigerant gas increases in temperature superheat has been added If this refrigerant changed from a liquid to a gas or vapor at 40 F and then the refrigerant vapor increased in temperature to 50 F it has been superheated...

Страница 82: ...mperature of the bulb at the evaporator outlet increases the pressure of the refrigerant in the bulb forces the valve open Although the TXV is designed to maintain a superheat of approximately 10 F T3b T3a a range of 7 F 18 F is considered normal The valve operation can also be monitored by T3a temperature based on room temperature T5 sensor T5 T3a 60 F 47 F 3 F 70 F 48 F 3 F 90 F 65 F 3 F ...

Страница 83: ...Mastic removed The bulb is clamped to the outlet of the evaporator above the T3b sensor The bulb and sensor are securely wrapped with mastic to provide an accurate transfer of tube temperature Capillary should be directed upwards ...

Страница 84: ...84 TXV Bulb Position The position of the bulb on the copper tubing is critical Ensure the bulb is attached on the top side of the tube between the 10 o clock and 2 o clock position TUBE BULB ...

Страница 85: ...5 Tube Position Condensation on certain areas of the expansion valve is normal Make certain the valve or tubing is not against the outer cover where water could leak down the outside of the water heater ...

Страница 86: ...86 TXV Replacement Part The valve body is heat sensitive It is recommended to use a heat absorbing paste such as WX5X8927 or equivalent should the TXV require replacement ...

Страница 87: ...begins where over time the sacrificial magnesium anode is consumed All metals fall somewhere on the galvanic scale of reactivity When two are placed together in water the nobler or less reactive one will remain intact while the more reactive one corrodes In the water heater the magnesium corrodes over time while the steel tank remains intact Anode Rod ...

Страница 88: ...88 The anode rod is 42 long with a 1 1 16 hex head The torque on the nut is 90 ft lbs The anode rod should last the life of the water heater unless unusual water conditions exist ...

Страница 89: ...steel dip tube located beneath the cold water inlet pipe directs cold water to the bottom of the tank Hot water at the top of the tank is used first when water flows from the tank The cold water inlet pipe must be disconnected to access the dip tube ...

Страница 90: ...90 Demand Response Module Module 6 ft interconnect cable The Demand Response module is an optional appliance used to communicate with the local utility company if available ...

Страница 91: ...rent user setting Mode 3 High Unit continues to operate in eHeat Mode Water temperature setpoint automatically adjusted down to 110F if consumer set point is above 110F Mode 4 Critical Peak Unit continues to operate in eHeat Mode Water temperature set point automatically adjusted down to 100F if consumer set point is above 100F Demand Response Modes ...

Страница 92: ...92 Diagnostic Mode 1 2 Press the ENERGY MENU pad then the ENTER pad ...

Страница 93: ...93 Using the down arrow scroll to the second screen ...

Страница 94: ...94 Press the ENTER pad to enter the diagnostics menu ...

Страница 95: ...95 Scroll to a selection and press the ENTER pad Component Status ...

Страница 96: ...96 Several selections within the diagnostics menu require an access code ...

Страница 97: ...97 The access code is FILTER LOCK and VACATION pads pressed sequentially within 3 seconds of each other 1 2 3 Access Code ...

Страница 98: ...98 Use the down arrow to scroll through the selections ...

Страница 99: ...99 T2 Sensor Displays current temperature sensor range and current resistance value in real time ...

Страница 100: ...100 Displays current temperature sensor range and current resistance value in real time T3a Sensor ...

Страница 101: ...101 Displays current temperature sensor range and current resistance value in real time T3b Sensor ...

Страница 102: ...102 Displays current temperature sensor range and current resistance value in real time T4 Sensor ...

Страница 103: ...103 Displays current temperature sensor range and current resistance value in real time T5 Sensor ...

Страница 104: ...104 Upper Element ENTER pad toggles the element on and off Element cycles off automatically after 5 minutes ...

Страница 105: ...105 Lower Element ENTER pad toggles the element on and off Element cycles off automatically after 5 minutes ...

Страница 106: ...106 Compressor ENTER pad toggles the compressor on and off Compressor cycles off automatically after 5 minutes ...

Страница 107: ...107 Evaporator Fan 1 ENTER pad toggles the fan on and off Fan runs at 60 of max RPM for 10 seconds then 100 RPM for 10 seconds then repeats the cycle ...

Страница 108: ...108 Evaporator Fan 2 ENTER pad toggles the fan on and off Fan runs at 60 of max RPM for 10 seconds then 100 RPM for 10 seconds then repeats the cycle ...

Страница 109: ...ample if the upper element were to fail each time the control energized the upper element but the element failed to draw current the count would increase by 1 Note When a count is recorded the control automatically switches to another available mode heating source for that heating cycle This ensures hot water is supplied unless all three heating sources have failed compressor upper and lower heati...

Страница 110: ... a fault for a specific component but the next time the heating cycle starts that component operates normally the fault count would decrease by one For example if the control records a T4 sensor fault for the first 3 heating cycles the fault count would be 3 If the 4th time the heating cycle started the T4 sensor was within specifications the control would subtract 1 and the total count would be 2...

Страница 111: ...20 F after first 30 minutes of compressor run Difference between T3a and T3b is greater than 5 F after 30 minutes T4 temperature never exceeds 240 F while compressor is operating Both fans operate correctly Compressor draws more than 1 5 amps Upper element draws more than 10 amps Lower element draws more than 10 amps Filter is clean T3a T3b T4 and T5 sensors are within limits Keypad doesn t have a...

Страница 112: ...in the Diagnostics Menu The access code is required to clear the faults Press FILTER LOCK and VACATION pads sequentially within 3 seconds of each other NOTE As part of the Clear All Faults option the control operates the evaporator fans for approximately 40 seconds ...

Страница 113: ...13 Heat Pump Failure The control will beep at a 2 seconds ON 8 seconds OFF interval until a pad is pressed The water heater will operate in a Temporary Mode to provide heat until serviced Only active pad ...

Страница 114: ...114 Moving to the second screen gives the consumer the service phone number and the appropriate fault code s Heat Pump Failure F4 indicates an evaporator fan fault ...

Страница 115: ...115 ...

Страница 116: ...116 ...

Страница 117: ...e following Dirty filter Wiring problem T3a T3b T4 or T5 Sensor Evaporator fan s or wiring Compressor discharge pressure switch Sealed system Compressor relay overload evaporator thermostatic expansion valve refrigerant charge Main control board ...

Страница 118: ...118 Water System Failure The control will beep at a 2 seconds ON 8 seconds OFF interval until a pad is pressed The water heater will operate in a Temporary Mode to provide heat until serviced ...

Страница 119: ...119 Moving to the second screen gives the consumer the service phone number and the appropriate fault code s Water Heater Failure F9 indicates a lower element fault ...

Страница 120: ...120 A Water System Failure can be caused by the following Wiring problem Upper Heating Element Lower Heating Element Main control board ...

Страница 121: ...121 System Failure The control will beep at a 2 seconds ON 8 seconds OFF interval until a pad is pressed The water heater will shut down and NOT provide hot water ...

Страница 122: ...122 Moving to the second screen gives the consumer the service phone number and the appropriate fault code s System Failure F2 indicates a T2 tank sensor fault ...

Страница 123: ...123 A System Failure can be caused by the following Wiring problem or power failure T2 Tank Sensor TCO 1 or TCO 2 Main control board Power supply board ...

Страница 124: ...124 Temporary Modes ...

Страница 125: ...125 Schematic ...

Страница 126: ...126 Compressor Circuit ...

Страница 127: ...127 Upper Element Circuit ...

Страница 128: ...128 Lower Element Circuit ...

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