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11

Clearing the Condensation Drain Tube

Care and cleaning of the water heater.

Cleaning the Filter

In the Hybrid, Heat Pump (only) and High Demand/Boost modes, 

the heater moves air through the system and out the back of the 

unit. The filter is in place to protect the evaporator from dirt and 

dust. 

A clean air filter is important to get the highest efficiency. 

Occasionally this filter will need to be cleaned (minimum once per 

year). When the filter requires cleaning, the Red light above the 

Filter button will be illuminated and an audible beep will sound. 

NOTE:

 If the filter gets too dirty, the unit will automatically switch 

to Electric (Fan off)/Standard (Fan off) mode and energy savings 

will be lost.
Leave the power on.  Remove the filter from 

 

the top of the unit. Squeeze two tabs and lift to remove the air 

filter. Once it has been removed, the filter can be vacuumed or 

wiped clean with a damp cloth or rinsed with warm water.
Once the filter has been cleaned and dried, it can be replaced by 

aligning it into the slots in the top of the unit and pushing it down 

into place. 

After the clean filter has been reinstalled, press and hold the 

FILTER

 button.  If a heating cycle is on when the filter fault is 

reset, it will continue in electric mode to finish the cycle.  After 

that, it will automatically revert to the mode it was in prior to 

being switched.

IMPORTANT:

 Filter must be cleaned when the alarm is displayed. 

A dirty filter will make the system work harder and result in a 

reduction of efficiency and possible damage to the system. In 

order to get the best energy efficiency available, make sure your 

filter is clean.

The main drain is intended to carry all condensate away.  If it is 

clogged, the heat pump will stop operating, the display will show 

F20, and an alarm will sound.  Press any button to silence the 

alarm, then clear the condensate drain by removing any drain 

lines and connections, and clearing debris. Reattach drain lines 

and connections, then allow the water heater to run.
Periodically inspect the drain lines and clear any debris that may 

have collected in the lines.
See Installation Instructions for more information.

Fitting

Direct the main 

drain tube into 

a drain

Anode Rod

The anode rod should be removed from the water heater’s tank 

and inspected after a maximum of 3 years service, then annually 

thereafter, and replaced when more than 6” (15.2 cm) of core 

wire is exposed at either end of the rod.
NOTE:  Artificially softened water requires that the anode rod be 

inspected annually.

Due to shock hazard and to prevent accidental water leaks, this 

inspection should be done by a qualified servicer or plumber, and 

requires that the electric power and cold water supply be turned 

off before servicing the anode rod.

 

 

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 shorten the life of the glass-lined tank 

and will void warranty coverage.
The anode rod consumption and replacement are not covered by 

warranty.

Filter

Slots

Tabs

Overflow

Exterior Surfaces

Hand wash with warm water only.

Main Drain Line

Summary of Contents for RE2H50R10B-1NCWT

Page 1: ...___ Serial __________________ You can find them on the rating label on the front side of your water heater RE2H50R10B 1NCWT RE2H80R10B 1NCWT Owner s Manual Installation Instructions Chauffe eau r side...

Page 2: ...th 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 near the top of the tank Time Temperature Relationship in S...

Page 3: ...line or other flammable vapors and liquids in the vicinity of this or any other appliance Keep rags and other combustibles away FOR INSTALLATIONS IN THE STATE OF CALIFORNIA California Law requires tha...

Page 4: ...heater is equipped with a temperature limiting control TCO that is located above the heating element in contact with the tank surface If for any reason the water temperature becomes excessively high t...

Page 5: ...ode Selector Use this button to alternate between available modes Arrow Pads Use these buttons to adjust the temperature setting Enter Key Filter Reset The filter is dirty and requires cleaning when t...

Page 6: ...egulations the controls are factory preset to 120 F 49 C and Hybrid Mode It is recommended that the unit be set to Heat Pump only mode to maximize energy savings Operating in Hybrid mode provides a ba...

Page 7: ...bout 10 seconds 140 F 60 C Less than 5 seconds 145 F 63 C Less than 3 seconds 150 F 66 C About 1 1 2 seconds 155 F 68 C About 1 second Table courtesy of Shriners Burn Institute Risk of Scalding Remind...

Page 8: ...mode the green LED light will flash after 48 hours as an indication that the unti is not operating in the most energy efficient mode The unit will continue to operate in this mode and does not indica...

Page 9: ...air normally discharged during heat pump operation Q Why does the Electric Only green LED flash A In this mode the green LED light will flash after 48 hours as an indication that the unit is not oper...

Page 10: ...o a suitable drain to prevent injury or property damage NOTE If the temperature and pressure relief valve on the hot water heater discharges periodically this may be due to thermal expansion in a clos...

Page 11: ...and result in a reduction of efficiency and possible damage to the system In order to get the best energy efficiency available make sure your filter is clean The main drain is intended to carry all co...

Page 12: ...lift out to inspect as show in Illustration D 6 To install the anode rod seal the threads with soft set sealant thread into the port and using the torque wrench tighten to 50 5 ft lbs of torque Plug i...

Page 13: ...experience lower performance LOCATION Locate the water heater in a clean dry area as near as practical to the area of greatest heated water demand Long uninsulated hot water lines can waste energy and...

Page 14: ...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 control...

Page 15: ...for suggested typical installation The HOT and COLD water connections are clearly marked and are NPT on all models When connecting to the inlet outlet ports the use of female NPT tapered thread fitti...

Page 16: ...lief Valve WARNING Risk of Unit Damage The pressure rating of the relief valve must not exceed 150 PSI 1 03 kPa the maximum working pressure of the water heater as marked on the rating plate A new com...

Page 17: ...tallation Instructions 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 thos...

Page 18: ...T FOR NORMAL STARTUP In Hybrid mode After the unit has been installed with all electrical and water connections secure and checked then the unit should be filled with water vent tank by opening a hot...

Page 19: ...usage may have Wait for the water heater to recover after an abnormal exceeded the capacity demand of the water heater Ambient temperature is For the water heater to work properly its location needs t...

Page 20: ...leaning the filter may be an indication of a fan failure Contact service The heater is beeping There is an issue with the The unit will automatically switch to another available and the screen says he...

Page 21: ...his provides an early indication of a re frigerant leak Note Target superheat is generally 10 F and EEV generally operates at a position much lower than 450 Check sealed system for refrigerant leak Ch...

Page 22: ...mode F13 1 Stuck Key fault This indicates there is a button on the front panel that is stuck down This button is inoperable Other buttons work normally If the button becomes free the fault code will c...

Page 23: ...23 Notes...

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