background image

TR

OUBLE

SHOO

TING

 24 

 Residential Hybrid Electric Heat Pump Water Heater Use and Care Guide 

Water Heater Sounds

During the normal operation of the 

water heater, sounds or noises may be 

heard. These noises are common and 

may result from the following:

• 

Normal expansion and contraction 

of metal parts during periods of 

heat-up and cool-down.

• 

Sediment buildup on or around 

the elements could create varying 

amounts of noise and may cause  

premature tank failure. Drain 

and flush the tank as directed 

under the “Draining and Flushing” 

section.

• 

The heat pump compressor or fan 

running.

 

Temperature Too High

If the water temperature is too hot:

•   Adjust the UIM setting on the water 

heater (see Step 12 in the installation 

section of this manual). 

•   Install or adjust a Thermostatic 

Mixing Valve (see manufacturer’s 

instructions)

A nonfunctioning thermostat or a short

-

ed heating element can cause extremely 

hot water. If the Temperature and Pres-

sure Relief Valve (T&P Valve) releases 

large amounts of very hot water, it is 

likely due to a shorted heating ele

-

ment, or more rarely a nonfunctioning 

thermostat, or the thermostat does 

not fit snuggly against the tank.  Very 

high water temperatures can also cause 

the Energy Cut Off (ECO) to trip (see 

page24). Turn power off until this prob

-

lem is fixed.

Low Water Pressure

Check both the cold and hot water at a 

sink to determine if the lower pressure 

is only on the hot water side. If both hot 

and cold faucets have low pressure, call 

your local water utility. If the low pressure 

is only on the hot water side, the primary 

causes of this are:

•   Melted dip tube. Soldering copper 

pipes while they are connected to the 

water heater can melt the inside of the 

hot and cold water connections or the 

dip tube (cold water side). A melted 

dip tube can restrict the flow of hot 

water. If that’s the case, replace the dip 

tube. 

• 

Partially closed supply valve. Open the 

water heater’s supply valve fully.

Insufficient or No Hot 

Water or Slow Hot Wa

-

ter Recovery:

If the hot water is simply not warm 

enough, there are several possible 

causes:

•  Thermostatic mixing valve faulty or 

set too low. 

• 

Temperature set point too low. 

•  Hot water usage pattern exceeds the 

capability of the water heater in cur-

rent mode (See “Operating Mode  

Descriptions”).

• 

Water connections to unit are 

reversed (Disconnect and re-install 

correctly).

•  Leak in plumbing system (Check home 

for any leaks and repair).

•  Lower heating element not function

-

ing properly.

• 

No power to the water heater (No 

lights on the unit are on and display 

is blank).

• 

Unit is in Vacation Mode.

• 

ECO tripped.

•  Non-functioning upper temperature 

sensor (refer to “Diagnostic Codes” 

section E60).

• 

Air filter dirty (See “Air Filter Mainte-

nance” p.33).

•  Out of position outlet j-tube (Assure 

orientation of line on tube is in top 

position).

•  Lower heating element not function

-

ing properly.

Thermostatic Mixing Valves.

 If the 

hot water is simply not warm enough, 

make sure the faucet you are checking 

doesn’t have a defective Thermostatic 

Mixing Valve. If these devices fail, they 

can reduce the amount of hot water the 

shower or faucet delivers even though 

there is plenty of hot water in the tank. 

Always check the water temperature at 

several faucets to make sure the prob-

lem is not in a faucet or shower control.

TROUBLESHOOTING

Содержание ProLine XE

Страница 1: ...wing the directions or aren t sure you can safely and properly do any of this work yourself Call our Technical Assistance Hotline at 1 888 479 8324 We can help you with installation operations troubleshooting or maintenance Before you call write down the model and serial number from the water heater s data plate Incorrect installation operation or service can damage the water heater your house and...

Страница 2: ...PVC Drain Line Drain Pan Discharge Pipe Do Not Cap or Plug Temperature and Pressure Relief Valve Drain Cold Inlet Hot Outlet Shut off Valve Hot Air Filter User Interface Module UIM Upper Element and ECO Condensate Drain Access Cover Connectivity Port TYPICAL INSTALLATION FOR 208V 240V NOTE If copper piping is used unions must be dielectric at inlet and outlets Union Union Drain Valve Lower Element...

Страница 3: ...d follow all safety messages and instructions in this manual DANGER indicates hazardous situation that if not avoided will result in death or serious injury WARNING WARNING indicates a hazardous situation that if not avoided could result in death or serious injury CAUTION CAUTION indicates a hazardous situation that if not avoided could result in minor or moderate injury NOTICE NOTICE indicates pr...

Страница 4: ...actory set to approximately 140 F 60 C Higher temperatures increase the risk of scalding Thermostatic Mixing Valves are particularly important to help avoid scalding Temperature Time to Produce a Serious Burn 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...

Страница 5: ...r heater is subjected to flood conditions or the thermostat s have been submerged in water the entire water heater must be replaced Make electrical connections prop erly according to the instructions on page 15 Use 10 gauge solid copper wire Use a UL listed or CSA approved strain relief Connect ground wire to green ground screw Explosion Risk High temperatures and pressures in the water heater tan...

Страница 6: ...ow how to use the following tools and supplies Plumbing tools and supplies appro priate for the type of water pipes in your home Threaded connectors Figure 1 for the cold and hot water pipes For homes plumbed with plastic pipe use threaded connectors suit able for the specific type of plastic pipe used CPVC and PEX cross linked polyethylene Do not use PVC pipe For homes with copper pipes you may p...

Страница 7: ...ure Gauge to an outside faucet and measure the maximum water pressure experienced throughout the day highest water pressures often occur at night Figure 6 Use a Water Pressure Gauge to make sure your home s water pressure is not too high Pressure Reducing Valves are available at your local plumbing supplier Water Pressure Thermal Expansion Verify that you have a properly sized Thermal Expansion Ta...

Страница 8: ...re 8 to catch condensation or leaks in the piping connections or tank Install the water heater in a drain pan that is piped to an ade quate drain The drain pan must be at least 2 50mm wider than the diameter of the water heater Install the drain pan so the water level would be limited to a maxi mum depth of 1 3 4 45mm Water tempera ture regulation Figure 9 Thermostatic Mixing Valves help prevent s...

Страница 9: ...s instructions Inspect the drain pan pipes and surrounding area regularly and fix any leaks found Drain pans are available at your local plumbing supplier Leaks are frequently in the plumbing system itself and not the water heater 7 The unit cannot be placed into any type of closet or small enclosure unless adequate provisions are made for air exchange vented or louvered doors etc 8 To ensure opti...

Страница 10: ...e hose in a drain outside or a bucket Note that sediment in the bottom of the tank may clog the valve and prevent it from draining If you can t get the tank to drain contact a qualified person 7 Turn the cold water supply valve OFF 8 Open the drain valve on the water heater Figure 11 Draining the old water heater 9 Also open a hot water faucet to help the water in the tank drain faster 10 When the...

Страница 11: ...te drainage An unlevel unit may lead to condensate draining inproperly and resulting in property damage DO NOT CONNECT ELECTRICAL WIRING UNTIL YOU ARE INSTRUCTED TO DO SO NOTICE Connecting electrical power to the tank before it is completely full of water water must run FULL STREAM from a hot water tap for a full three minutes will cause the upper heating element to burn out Step 5 Connecting the ...

Страница 12: ...4 NPT and an approved sealant none supplied with unit attach the elbow to the primary drain connec tion and insert the PVC pipe into the female end allowing enough length to access an adequate drain 2 Using 1 2 ID rubber or flexi ble plastic tubing slip one end over the secondary drain connection allowing enough length to access an adequate drain Step 7 Connect the Tempera ture and Pressure T P Re...

Страница 13: ...l Thermostatic Mixing Valves to reduce the risk of scalding 3 For water heaters that are fed by a solar water heating system or any other pre heat ing system always install a Thermo static Mixing Valve or other tempera ture limiting device in the inlet water supply line to limit water supply inlet temperature to 140 F 60 C Solar water heating systems can supply water with temperatures exceeding 17...

Страница 14: ...r apply joint com pound NOTICE This water heater model con tains an outlet connection J tube that has an orientation mark that must line up with arrow in a 12 o clock position 3 Connect the hot water supply using 3 4 inch NPT to the hot water outlet Follow the same connection guidelines as for the cold water supply 4 Install insulation on the water pipes Insulating the hot water pipes can increase...

Страница 15: ...0 208 VAC single phase 30 amp power supply at 60Hz Check the water heater s data plate see figure 23 on page 15 and ensure that the home s voltage wiring size ampacity and circuit breaker rating and type are correct for this water heater Refer to the wiring diagram located on the water heater for the cor rect electrical connections Ensure that wire sizes type and connections comply with all applic...

Страница 16: ...For detailed descriptions of all opera tional modes see Operating Mode Descriptions page 17 Step 12 Adjusting the Temperature With the installation steps completed you may adjust the water heater s tem perature setting if desired 1 The water heater s tempera ture setting has been factory set to approximately 140 F 60 C Higher tank temperatures 140 F 60 C kill bacteria that cause a condition known ...

Страница 17: ...very re heat time Be sure to switch back to the desired operational mode when finished Operating Mode De scriptions The operating modes can be changed sequentially by pressing the Mode Enter button Figure 26 page 19 The Operation Mode Indication Light will turn on when the relevant mode is selected This unit is equipped with technology that senses the hot water demand from the unit While in Effici...

Страница 18: ...o confirm the vacation timer To deactivate Vacation Mode press the Mode Enter button to switch to the desired mode NOTE Do not shut off power to the unit for extended periods of time If power must be turned off for an extended period of time drain the tank completely Other Controls F C Switch Press Temperature Down button and hold for 3 seconds to switch temperature unit between Farenheit and Cels...

Страница 19: ...t be used DO NOT discharge the condensate drain lines into the metal drain pan In a closed system use a thermal expansion tank See Water Pressure Thermal Expansion section 12 in 300 mm Maximum Air Gap Shut off Valve Cold Primary Condensate Drain 3 4 PVC Tempered Water to Fixtures Optional Mixing Valve Follow the Mixing Valve s Manufacturer s Installation Instructions Set to 120 F 48 C Untempered W...

Страница 20: ...rom control board inspect wire for damage re install UIM reconnect power If error persists replace temperature sensor E30 or E31 Lower Temperature Sensor is not functioning E50 or E51 Heat Pump Suction Temperature Sensor is not functioning E10 or E11 Heat Pump Coil Temperature Sensor is not functioning E40 or E41 Heat Pump Discharge Temperature Sensor is not functioning E60 Upper and Lower Tempera...

Страница 21: ...ure is too low Call our Technical Assistance Hotline at 1 800 527 1953 for further assistance EEE EEPROM failure 1 Power cycle unit see page 25 2 If problem persists call our Technical Assistance Hotline at 1 800 527 1953 ECC Heat pump compressor is not functioning Call our Technical Assistance Hotline at 1 800 527 1953 for further assistance ECE Power supply error Call our Technical Assistance Ho...

Страница 22: ... circuit breaker back on or install the disconnects and check the power on both incoming power wires using a non contact circuit tester Turn the power off and replace the cover on the electrical junction box If the water heater is not getting power contact a qualified person to have your homes wiring or circuit breakers checked 2 Check the upper heating element If the water heater is getting elect...

Страница 23: ... relief valve or discharge pipe and do not operate the water heater with out a functioning T P Relief Valve this could cause an explosion Water pressure too high High water pressure can cause the T P Relief Valve to drip Install a Pressure Reducing Valve PRV on the main cold water supply line Adjust the PRV to less than 80 psi 550 kpa Thermal Expansion Tank Install a Thermal Expansion Tank If a Th...

Страница 24: ... water side the primary causes of this are Melted dip tube Soldering copper pipes while they are connected to the water heater can melt the inside of the hot and cold water connections or the dip tube cold water side A melted dip tube can restrict the flow of hot water If that s the case replace the dip tube Partially closed supply valve Open the water heater s supply valve fully Insufficient or N...

Страница 25: ...astic tube inside the tank attached to the cold water inlet If the J tube has melted it can be replaced by removing the old J tube and installing a new one Plumbing leak Even a small leak in the hot water side of the homes plumb ing system can make it appear that the water heater is producing little or no hot water Locate and repair the leak Lower heating element not working If the lower heating e...

Страница 26: ... can prevent the tank from draining Have a qualified person use a de lim ing agent suitable for potable water to remove the sediment buildup In most cases it is easier and less expansive to replace lime encrusted elements than trying to remove heavy lime deposits To drain and flush the tank 1 Locate the water heater s circuit breaker and turn it OFF or remove the circuit s fuses Figure 31 Circuit ...

Страница 27: ... element to burn out Once you are certain the tank is completely full of water close the hot water faucet 10 Restore power to the water heater It may take two hours for the tank to heat up Replacing the Heating Element WARNING Working on an ener gized circuit can result in severe injury or death from electrical shock Turn power off Check wires with a non contact circuit tester to make sure power i...

Страница 28: ...p 10 in the Installation section 10 Refill the tank by opening the cold water supply valve Make sure a hot water faucet is open and the drain valve is closed Allow the hot water to run full for at least three minutes to make sure the tank has all the air removed and is completely full of water Failure to perform this step can cause the upper heating element to burn out Once you are certain the tan...

Страница 29: ...bend the ECO mounting clip until the ECO fits tightly against the tank 9 Attach the wires following the wiring diagram on the water heater s label Make sure all wire connections are tight 10 Replace the plastic element ECO cover insulation and access panel 11 Replace the cover on the electrical junction box 12 Restore power to the water heater It may take two hours for the tank to heat up Figure 4...

Страница 30: ... air filter turn off power to the water heater at the circuit breaker fuse box 1 Take the two tabs on the air filter and remove slide it from the top cover of the unit 2 If you are replacing the filter skip to step four To clean the filter use a vacuum with a hose attachment to remove any dust or debris 3 Place the new or cleaned filter into the water heater 4 Restore power to the water heater and...

Страница 31: ...ter 9008850005 7 Fan Assembly 9008851005 8 Drain Valve Brass 2 inch 100262060 9 Personnel Protector 319378 000 10 Ambient Coil Discharge Temperature Sensor Assembly 9008852005 11 Upper Lower Tank Temperature Sensor Assembly 9008853005 12 Electronic Expansion Valve Coil 9008854005 13 Condensate Drain Pan 325892 000 14 Smart Grid Cover 319687 000 15 UIM Front Cover Assembly No control board 10026333...

Страница 32: ...urs A O Smith Water Heaters 599 Hill Street West Fergus ON Canada N1M 2X1 Should you have any questions please visit us online at www hotwater ca or email us at techsupport hotwater com or Call our tech support line at 1 888 GSW TECH 479 8324 ...

Отзывы: