Rheem Hb series User manual

Water Heaters

Electric Residential Heat Pump

The purpose of this manual is twofold:

one, to provide the installer with the basic

directions and recommendations for the

proper installation and adjustment of the

water heater; and two, for the owner–

operator, to explain the features, operation,

safety precautions, maintenance and

troubleshooting of the water heater. This

manual also includes a parts list.

It is imperative that all persons who are

expected to install, operate or adjust this

water heater read the instructions carefully

so they may understand how to perform

these operations. If you do not understand

these instructions or any terms within it,

seek professional advice.

Any questions regarding the operation,

maintenance, service or warranty of this

water heater should be directed to the

seller from whom it was purchased. If

additional information is required, refer to

the section on “If you need service.”

DO NOT destroy this manual. Please

read carefully and keep in a safe place

for future reference.

Recognize this symbol as an

indication of Important Safety

Information!

California Proposition 65

Warning: This product contains

chemicals known to the State of

California to cause cancer, birth

defects or other reproductive harm.

Residential 50 Gallon - HB Series

92-103234-12

AP16244-1 (06/13)

Printed in USA

Use & Care Manual

With Installation Instructions for the Installer

http://waterheatertimer.org/New-water-heater-ideas.html

_________________________________________________________________

Care and Cleaning

Draining ................ 15

Maintenance............. 15

Extended Shut-Down ..... 16

Safety Information

Safety Precautions ....... 3-4

Installation Instructions

Location ................. 5

Water Connections ........ 6

Condensate Drain ......... 6

Relief Valve .............. 7

Electrical Connections. . . . 8-9

Pipe Insulation ........... 10

Installation Checklist.......11

Operating Instructions

Safety Controls .......... 12

Water Temperature ........12

Basic Water Heater Operation .

. . . . . . . . . . . . . . . . . . . . . .13-14

Troubleshooting Tips

Before You Call

For Service.............. 17

Customer Service

Parts List................ 20

Wiring Diagram.......... 22

If You Need

Service ................ 24

FOR YOUR RECORDS

Write the model and serial numbers here:

You can find them on a label on the appliance.

Staple sales slip or cancelled check here.

Proof of the original purchase date is needed to obtain service

under the warranty.

Inside you will find many helpful hints on how to use and

maintain your water heater properly. Just a little preventive

care on your part can save you a great deal of time and money

over the life of your water heater.

You’ll find many answers to common problems in the Before

You Call For Service section. If you review our chart of

Troubleshooting Tips first, you may not need to call for service

at all.

READ THIS MANUAL

Your safety and the safety of others are very important.

There are many important safety messages in this manual

and on your appliance. Always 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 symbol and

either the word “DANGER”, “WARNING”, “CAUTION”

or “NOTICE”.

These words mean:

DANGER

An imminently hazardous situation

that will result in death or serious

injury.

WARNING

A potentially hazardous situation that

could result in death or serious

injury and/or damage to property.

!CAUTION A potentially hazardous situation that

may result in minor or moderate

injury.

NOTICE:

Attention is called to observe a

specified procedure or maintain a

specific condition.

READ THE SAFETY INFORMATION

The chart shown above may be used as a guide in

determining the proper water temperature for your

home.

DANGER: Households with small children,

disabled, or elderly persons may require a 120°F or

lower thermostat setting to prevent contact with

“HOT” water.

The temperature of the water in the heater is regulated

by the water heater interface control. To comply with

safety regulations the temperature was set at 120°F

before the water heater was shipped from the factory.

The illustration below shows the water temperature

setting.

Refer to the Operating Instructions in this manual

for detailed instructions in how to adjust the water

temperature.

DANGER: Hotter water increases the potential for

Hot Water SCALDS.

Time/Temperature Relationship in Scalds

Temperature Time To Produce a Serious Burn

120°F (49°C) More than 5 minutes

125°F (52°C) 1½ 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 (65°C) About 1½ seconds

155°F (68°C) About 1 second

Table courtesy of Shriners Burn Institute

DANGER

HOT

Water temperature over 125°F can

cause severe burns instantly or

death from scalds.

Children, disabled and elderly are

at highest risk of being scalded.

See instruction manual before

setting temperature at water

heater.

Feel water before bathing or

showering.

Temperature limiting valves are

available, see manual.

BURN

IMPORTANT SAFETY INFORMATION.

READ ALL INSTRUCTIONS BEFORE USING.

DANGER!

WATER TEMPERATURE SETTING

Safety and energy conservation are factors to be considered when selecting the water

temperature setting of water heater. Water temperatures above 125°F can cause severe

burns or death 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 thermistor

access panel.

NOTICE: Mixing valves are available for reducing point

of use water temperature by mixing hot and cold water

in branch water lines. Contact a licensed plumber or the

local plumbing authority for further information.

IMPORTANT SAFETY INFORMATION.

READ ALL INSTRUCTIONS BEFORE USING.

WARNING!

For your safety, the information in this manual must be followed to minimize the risk of

fire or explosion, electric shock, or to prevent property damage, personal injury, or loss of

life.

Be sure to read and understand the entire Use and Care Manual before attempting

to install or operate this water heater. It may save you time and cost. Pay particular

attention to the Safety Instructions. Failure to follow these warnings could result in

serious bodily injury or death. Should you have problems understanding the instructions

in this manual, or have any questions, STOP, and get help from a qualified service

technician, or the local electric utility.

FOR INSTALLATIONS IN THE STATE OF CALIFORNIA

California Law requires that residential water heaters must be braced, anchored or

strapped to resist falling or horizontal displacement due to earthquake motions. For

residential water heaters up to 52-gallon capacity, a brochure with generic earthquake

bracing instructions can be obtained from: Office of the State Architect, 1102 Q Street,

Suite 5100, Sacramento, CA 95814 or you may call 916-445-8100 or ask a water heater

dealer.

However, applicable local codes shall govern installation. For residential water heaters of

a capacity greater than 52 gallons, consult the local building jurisdiction for acceptable

bracing procedures.

CAUTION: DO NOT “crush” or otherwise impair the removal of the “plastic” front

(side) panel.

READ AND FOLLOW THIS SAFETY INFORMATION

CAREFULLY.

SAVE THESE INSTRUCTIONS

Have the installer show you the location of the circuit breaker and how to shut it off if

necessary. Turn off the circuit breaker if the water heater has been subjected to overheating,

fire, flood, physical damage or if the ECO (temperature limiting control) fails to shut off.

●Read this manual entirely before installing

or operating the water heater.

●Use this appliance only for its intended

purpose as described in this Use and Care

Manual.

●Be sure your appliance is properly installed

in accordance with local codes and the

provided installation instructions.

●DO NOT attempt to repair or replace

any part of your water heater unless it is

specifically recommended in this manual.

All other servicing should be referred to a

qualified technician.

SAFETY PRECAUTIONS

WARNING!

Disconnect all power to unit before starting maintenance. Failure to do so can cause

electrical shock resulting in severe personal injury or death.

Installing the water heater

The location chosen for the water heater must take into consideration the following:

Local Installation Regulations

This water heater must be installed

in accordance with these instructions,

local codes, utility codes, utility

company requirements or, in the

absence of local codes, the latest

edition of the National Electrical

Code. It is available from some local

libraries or can be purchased from the

National Fire Protection Association,

Batterymarch Park, Quincy, MA 02269

as booklet ANSI/NFPA 70.

Canadian installations should refer to

CSA22.1, a copy can be purchased

from the Canadian Standards

Association, 5050 Spectrum Way,

Mississauga,ONT L4W 5N6

Location

NOTICE: Auxiliary

catch pan MUST

conform to local

codes.

Catch Pan Kits

are available from

the store where

the water heater

was purchased, or

any water heater

distributor.

Catch Pan should not

obstruct cold inlet or

drain valve.

Locate the water heater in a clean dry

area as near as practical to the area of

greatest heated water demand. Long

un-insulated hot water lines can waste

energy and water.

Place the water heater in such a

manner that the thermistor and element

access panels can be removed to

permit inspection and servicing such

as removal of elements or checking

controls.

The water heater and water lines

should be protected from freezing

temperatures. Do not install the water

heater in outdoor, unprotected areas.

Make certain the floor underneath

the water heater is strong enough to

sufficiently support the weight of the

water heater once it is filled with water.

CAUTION: The water heater

should not be located in an area

where leakage of the tank or

connections will result in damage

to the area adjacent to it or to

lower floors of the structure. Where

such areas cannot be avoided, it is

recommended that a suitable catch

pan, adequately drained, be installed

under the water heater.

NOTICE: Installation in a closet or

confined space is not allowed.

It is recommended that the Heat Pump

Water Heater be installed in a location

providing approximately 1,000 cu. ft

of unconditioned air. Installation in

an enclosed room smaller than 1000

cubic feet (10'x10'x10') is permissible

provide that adequate inlet/outlet

ventilation is provided, such as

louvered door, to allow heat to enter

the room. If louvered door is used,

it is recommended that it provide

a minimum of two 8"x14" register

openings, one at the top and the other

at the bottom of the door, and that these

be kept fully opened.

Clearances

Rear Top

2" 8" Min.

A—Diameter of water

heater plus 2" min..

B—Maximum 2″

ATo open drain, line

should be at least 3/4″ID

and pitched for proper

drainage.

Refrigerant

This heat pump water heater is factory charged with an environmentally friendly,

non-chlorinated refrigerant, R410A. This refrigerant has zero ozone depletion

potential.

Inspect Shipment

Inspect the water heater for possible damage. Check the markings on the rating

plate of the water heater to be certain the power supply corresponds to the water

heater requirements. Rating plate is located on front of water heater.

Installing the water heater

Thermal Expansion

Determine if a check valve exists in the

inlet water line. Check with your local

water utility. It may have been installed in

the cold water line as a separate back flow

preventer, or it may be part of a pressure

reducing valve, water meter or water

softener. A check valve located in the cold

water inlet line can cause what is referred

to as a “closed water system”. A cold

water inlet line with no check valve or back

flow prevention device is referred to as an

“open” water system.

As water is heated, it expands in volume

and creates an increase in the pressure

within the water system. This action is

referred to as “thermal expansion”. In

an “open” water system, expanding water

which exceeds the capacity of the water

heater flows back into the city main where

the pressure is easily dissipated.

A “closed water system”, however,

prevents the expanding water from

flowing back into the main supply line,

and the result of “thermal expansion”

can create a rapid and dangerous pressure

increase in the water heater and system

piping. This rapid pressure increase can

quickly reach the safety setting of the

relief valve, causing it to operate during

each heating cycle. Thermal expansion,

and the resulting rapid and repeated

expansion and contraction of components

in the water heater and piping system can

cause premature failure of the relief valve,

and possibly the heater itself. Replacing

the relief valve WILL NOT correct the

problem!

The suggested method of controlling

thermal expansion is to install an expansion

tank in the cold water line between the

water heater and the check valve (refer

to the illustration on the next page). The

expansion tank is designed with an 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 controlling thermal

expansion are also available. Contact

your installing contractor, water supplier

or plumbing inspector for additional

information regarding this subject.

Water Supply Connections

Refer to the illustration on the next

page for suggested typical installation. The

installation of unions or flexible copper

connectors is recommended on the hot

and cold water connections so that the

water heater may be easily disconnected

for servicing if necessary. The HOT and

COLD water connections are clearly

marked and are 3/4″NPT on all models.

Install a shut-off valve in the cold water

line near the water heater.

See page 8 on "To Fill The Water

Heater".

NOTICE: DO NOT apply heat to the

HOT or COLD water connections.

If sweat connections are used, sweat

tubing to adapter before fitting adapter

to the water connections on heater. Any

heat applied to the water supply fittings

will permanently damage the dip tube

and/or heat traps.

Condensate Drains for the Heat Pump

Consult local codes or ordinances for

specific requirements. Refer to page 7.

IMPORTANT: When making drain fitting

connections to the drain tubing, use a thin

layer of piping tape or silicone and install

hand tight.

IMPORTANT: When making drain fitting

connections to the drain tubing, DO NOT

overtighten. Overtightening fittings can

split pipe connections on the drain pan.

• This unit is equipped with a 3/4"

primary condensate connection and a

1/2" overflow connection.

• DO NOT reduce drain line size less

than connection size provided on

condensate drain.

• All drain lines must be pitched

downward away from the unit a

minimum of 1/8" per foot of line to

ensure proper drainage.

• Do not connect condensate drain line

to a closed or open sewer pipe. DO

NOT allow condensate to drain into

the water heater drain pan.

• The drain line should be insulated

where necessary to prevent sweating

and damage due to condensate

forming on the outside surface of the

line.

WARNING: The

pressure rating of

the relief valve

must not exceed

150 PSI, the

maximum working

pressure of the

water heater as

marked on the

rating plate.

A new combination temperature and pressure relief valve, complying with the Standard for Relief Valves

and Automatic Gas Shut-Off Devices for Hot Water Supply Systems, ANSI Z21.22/CSA 4.4, is installed

in the opening provided. No valve of any type should be installed between the relief valve and the tank.

Local codes shall govern the installation of relief valves.

Relief Valve

The BTUH rating of the relief valve

must not be less than the input rating

of the water heater as indicated on the

rating label located on the front of the

heater (1 watt=3.412 BTUH).

Connect the outlet of the relief valve

to a suitable open drain so that the

discharge water cannot contact live

electrical parts or persons and to

eliminate potential water damage.

Piping used should be of a type

approved for hot water distribution.

The discharge line must be no smaller

than the outlet of the valve and must

pitch downward from the valve to allow

complete drainage (by gravity) of the

relief valve and discharge line. The

end of the discharge line should not be

threaded or concealed and should be

protected from freezing. No valve of

any type, restriction or reducer coupling

should be installed in the discharge line.

Typical Installation

8" Minimum clearance above heat

pump to allow air circulation

Electrical access cover

Ceiling

Heatpumplter

Union

Drain valve

Union

Hot water outlet

toxtures

Temperature and pressure

relief valve and discharge

line

Shut off valve

Cold water

supply

Thermal expansion

tank (if required)

6" Air gap

Heat trap

6" Min

Primary condensation (3/4")

to open drain or outdoors

Secondary condensate tubing

(1/2") to open drain or outdoors

Installing the water heater

Electrical Connections

To Fill the Water Heater

Make certain the drain valve is

completely closed.

Open the shut-off valve in the cold

water supply line.

Open each hot water faucet slowly to

allow the air to vent from the water

heater and piping.

A steady flow of water from the hot

water faucet(s) indicates a full water

heater.

WARNING: The tank must

be full of water before heater

is turned on. The water heater

warranty does not cover

damage or failure resulting

from operation with an empty

or partially empty tank.

WARNING!

Turn off electric power at the fuse box or

service panel before making any electrical

connections.

Also, the ground connection must be

completed before making line voltage

connections. Failure to do so can result in

electrical shock, severe personal injury or

death.

Disconnect all power to unit before starting

maintenance. Failure to do so can cause

electrical shock resulting in severe personal

injury or death

The unit must be grounded. Failure to do so

can cause electrical shock resulting in severe

personal injury or death.

Electrical Power

Hookup Terminals

Ground Screw

SCALE 0.400

EcoNet™ Port

EcoNet™ Communication Port

EcoNet™ communication port is for future integration with home automation,

energy management, and demand response systems

Insulation blankets, available to

the general public, for external

use on electric water heaters are

not necessary. The purpose of an

insulation blanket is to reduce the

standby heat loss encountered with

storage tank heaters. This water

heater meets or exceeds the National

Appliance Energy Conservation Act

standards with respect to insulation

and standby loss requirements making

an insulation blanket unnecessary.

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 those

authorized by the manufacturer) into,

onto or in conjunction with the water

heater. The use of unauthorized energy

saving devices may shorten the life of

the water heater and may endanger life

and property.

The manufacturer disclaims any

responsibility for such loss or injury

resulting from the use of such

unauthorized devices.

CAUTION: If local codes require

the application of an external

insulation blanket to this water

heater, pay careful attention to the

following so as not to restrict the

proper function and operation of the

water heater:

Do not cover the operating or

warning labels attached to the water

heater or attempt to relocate them

on the exterior of insulation blanket.

Do not apply insulation to the top of

the heat pump.

Do not cover the coils around the

sides of the heat pump.

Do not cover the Temperature

Control, temperature and pressure

relief valve or drain valve.

Inspect the insulation blanket

frequently.

WARNING: If local

codes require external

application of insulation

blanket kits the

manufacturer’s instructions

included with the kit must

be carefully followed.

Insulation Blankets

CAUTION: The presence

of water in the piping

and water heater does

not provide sufficient

conduction for a ground.

Non-metallic piping,

dielectric unions, flexible

connectors etc. can cause

the water heater to be

electrically isolated.

A separate branch circuit with copper

conductors, over current protective

device and suitable disconnecting

means must be provided by a qualified

electrician.

All wiring must conform to local

codes or latest edition of National

Electrical Code ANSI/NFPA 70.

The water heater is completely wired

to the Electrical Power Hookup

Terminals inside the jacket at the top

front of the water heater. An opening

for 1/2″or 3/4″electrical fitting is

provided for field wiring connections.

The voltage requirements and wattage

load for the water heater are specified

on the rating plate on the front of the

water heater.

The branch circuit wiring should include

either:

Metallic conduit or metallic

sheathed cable approved for use

as a grounding conductor and

installed with fittings approved

for the purpose.

Non-metallic sheathed cable,

metallic conduit or metallic

sheathed cable not approved for

use as a ground conductor shall

include a separate conductor for

grounding. It should be attached

to the ground terminals of the

water heater and the electrical

distribution box.

• 208-230V 1PH

• 24.0 Max. AMP draw

• 10 gauge wire

• Recommended 30 AMP over-

current protection.

Electrical Connections continued...

Filter

Coils

Installing the water heater

Please install the insulation on the cold

water supply inlet and the hot water

outlet as shown in the illustration.

Hot and Cold Pipe Insulation Installation

For increased energy efficiency, this

water heater has been supplied with

two 2-3/8” sections of pipe insulation.

Please install the insulation, according

to the illustration at left.

Slip the insulation cover over the

T&P Valve through the center hole

and align the hole in the side with the

opening of the T&P Valve.

Slip the insulation cover over the

drain valve through the center hole.

Relief and DrainValve Insulation Installation

CAUTION: Ensure the

T&P Valve opening is not

obstructed by the insulation.

Hot Water

Outlet

Relief

Valve

Cold Water

inlet

Drain

Valve

Installation Checklist

A. Water Heater Location

❑ Close to area of heated water demand.

❑ Indoors and protected from moisture,

wet conditions and freezing

temperatures.

❑ Area free of flammable vapors.

❑ 1,000 cu. ft unconditioned indoor space.

❑ Provisions made to protect area from

water damage.

❑ Sufficient room to service heater.

❑ Eight inches (8") of clearance from

ceiling to top of heat pump water heater

to allow for air circulation.

❑ Access to condensate disposal.

B. Water Supply

❑ Water heater completely filled with

water.

❑ Air purged from water heater and piping.

❑ Water connections tight and free of

leaks.

C. Relief Valve

❑ Temperature and Pressure Relief Valve

properly installed and discharge line run

to open drain.

❑ Discharge line protected from freezing.

D. Wiring

❑ Power Supply voltage agrees with water

heater rating plate.

❑ Branch circuit wire and fusing or circuit

breaker of proper size. (Recommended

30 amp breaker)

❑ Electrical connections tight and unit

properly grounded.

❑ 10 gauge wire.

E. Condensate Lines

❑ Condensate lines from heat pump

installed correctly.

❑ Condensate lines from heat pump run to

a suitable drain location.

The water heater is equipped with a

temperature limiting control (ECO)

that is located above the upper heating

element in contact with the tank

surface. If for any reason the water

temperature becomes excessively

high, the temperature limiting control

(ECO) breaks the power circuit to

the heating element. Once the control

opens, it must be reset manually.

CAUTION: The cause of the high

temperature condition must be

investigated by qualified service

technician and corrective action

must be taken before placing the

water heater in service again.

To reset the temperature limiting control:

(Refer to Illustration on page 21):

Turn off the power to the water

heater.

Remove the top jacket access

panel and insulation.

Press the red RESET button.

Replace the insulation, jacket

access panel and plastic housing

before turning on the power to

the water heater.

DANGER: There is a

hot water scald potential if

the thermostat is set too

high. Households with small

children, disabled, or

elderly persons may require

a 120°F or lower thermostat

setting to prevent contact

with HOT water.

Water Temperature Setting

The temperature of the water in the

water heater can be regulated by

selecting the desired temperature on

control display.

Safety and energy conservation

are factors to be considered when

selecting the water temperature setting

of the water heater. The lower the

temperature setting, the greater the

savings in energy and operating costs.

To comply with safety regulations the

temperature is factory set at 120°F or

less where local codes require. This is

the recommended starting point.

Water temperatures above 125°F can

cause severe burns or death from

scalding. Be sure to read and follow

the warnings outlined in this manual

and on the label on the water heater.

This label is located on the front of the

water heater.

Mixing valves for reducing point

of use water temperature by mixing

hot and cold water in branch water

lines are available. Contact a licensed

plumber or the local plumbing

authority for further information.

The chart on the page 3 may be used

as a guide in determining the proper

water temperature for your home.

Safety Precautions

Do turn off power to water heater

if it has been subjected to over

heating, fire, flood, physical

damage.

Do Not turn on water heater

unless it is filled with water.

Do Not turn on water heater if

cold water supply shut-off valve

is closed.

If there is any difficulty in

understanding or following the

Operating Instructions or the

Care and Cleaning section, it is

recommended that a qualified

person or serviceman perform the

work.

Operating the water heater

CAUTION: Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for a

long period of time (generally two weeks or more). HYDROGEN GAS IS EXTREMELY FLAMMABLE!! To dissipate such

gas and to reduce risk of injury, it is recommended that the hot water faucet be opened for several minutes at the kitchen sink

before using any electrical appliance connected to the hot water system. If hydrogen is present, there will be an unusual sound

such as air escaping through the pipe as the water begins to flow. DO NOT smoke or use an open flame near the faucet at the

time it is open.

Safety Controls

WARNING: If the water

heater has been subjected

to flood, fire, or physical

damage, turn off power and

water to the water heater.

Do not operate the water

heater again until it has

been thoroughly checked by

qualified service personnel.

Basic Water Heater Operation

Current Operating

Condition

Temperature

Setting

Temperature

Adjustment

Operational

Control Button

Service Button

Settings Button

Operating Mode

Button

Navigating the Home Screen

Temperature Adjustment

Tank temperature will be maintained according to the setting on the Home

Screen. If the water temperature setting needs adjustment, use the arrows on the

control display to select desired temperature.

To turn the water heating "On", select the "Standby" button on the Home Screen to "Enable" the

system.

Water Heater ships in the default "Energy Saver" mode with a temperature setting of 120° F.

Recommended temperature setting 120° F. For DOE test, temperature is set to 135° F.

To turn the water heating "OFF", select the "Enabled" button on the Home Screen to "Standby"

the system.

Once power is supplied to the water heater, the Operational Control Buttons can be

used to activate the heating of water.

Operational

Control

DANGER: Hotter water

increases the potential for

HOT water SCALDS

Operating Mode

Press the "Mode" button to utilize the five major

modes of operation: The active mode is displayed

on the top of the screen

Heat Pump Only

This mode will heat with compressor

operation only and will not use any

electric heat during typical heating and

demand cycles. This mode will minimize power

consumption.

Energy Saver - Factory set mode for shipping.

This mode optimizes compressor and electric

heat that results in water heater performance

that meets Energy Star requirements.

As a result, compressor operation will be

maximized and use of electric heat will be

minimized.

High Demand

This mode will maximize the performance

of the water heater while still providing good

energy savings.Water heater operates with

simultaneous compressor and electric heat.

Electric Only

This Mode will heat with the electric

resistance elements. This mode should only

be used during compressor maintenance

periods. This mode will result in maximum power

consumption.

Vacation

This mode will allow duration setting

between 2 and 28 days or set indefinitely

with the "Hold" setting. Tank temperature

will be maintained at about 82º F. Only compressor

operation will be allowed as needed.

Basic Water Heater Operation

The Settings Screen allows the following changes:

The Display Units: The temperature display on the Home Screen can be set to Fahrenheit or Celsius

Home Screen Lock: The Home Screen can be locked to eliminate accidental changing of the Mode or

Temperature

Beep on Alarm: The audible Alarm tone can be disabled during service periods

Settings

Service

The Service screen provides information on the current status, product description, diagnostics, testing, tem-

perature readings, and alarms. Alarm details can be found in the “Troubleshooting Alarm Codes” section of the

manual.

Care and cleaning of the water heater

Draining the Water Heater

CAUTION: Shut off power to the

water heater before draining water.

DANGER: Before manually

operating the relief valve, make

certain no one will be exposed to the

hot water released by the valve. The

water drained from the tank may be

hot enough to present a scald

hazard and should be directed to a

suitable drain to prevent injury or

damage.

In order to drain the water heater, turn

off the cold water supply. Open a hot

water faucet or lift the handle on the

relief valve to admit air to the tank.

Attach a garden hose to the drain

valve on the water heater and direct

the stream of water to a drain. Open

the valve.

Routine Preventative Maintenance

Properly maintained, your water heater

will provide years of dependable

trouble-free service.

It is suggested that a routine

preventive maintenance program be

established and followed by the user.

It is further recommended that a

periodic inspection of the electronic

control, heat pump and wiring should

be made by service personnel qualified

in electric appliance repair.

Most electrical appliances, even

when new, make some sound when

in operation. If the hissing or singing

sound level increases excessively,

Contact a qualified installer or

plumbing contractor to inspect.

IMPORTANT: See "DANGER

on left". At least once a year, lift

and release the lever handle on the

temperature pressure relief valve,

located on the side of the water heater,

to make certain the valve operates

freely. Allow several gallons to flush

through the discharge line to an open

drain.

It is recommended to clean the

filter on top of the heat pump every

month. Clean by washing with

mild detergent and water. Dry and

replace over discharge fan. Remove

the filter by lifting up on the handle

at front of the heat pump and lifting

it off the air discharge fan. See

Figure on right.

A water heater’s tank can act as a

setting basin for solids suspended

in the water. It is therefore not

uncommon for hard water deposits to

accumulate in the bottom of the tank. It

is suggested that a few quarts of water

be drained from the water heater’s tank

every month to clean the tank of these

deposits.

Rapid closing of faucets or solenoid

valves in automatic water using

appliances can cause a banging noise

heard in a water pipe. Strategically

located risers in the water pipe system

or water hammer arresting devices can

be used to minimize the problem.

DANGER: Before

manually operating the

relief valve, make certain

no one will be exposed to

the danger of coming in

contact with the hot water

released by the valve. The

water may be hot enough to

create a scald hazard. The

water should be released

into a suitable drain to

prevent injury or property

damage.

NOTICE: If the

temperature and pressure

relief valve on the hot

water heater discharges

periodically, this may be

due to thermal expansion

in a closed water system.

Contact the water

supplier or your plumbing

contractor on how to

correct this. Do not plug

the relief valve outlet.

WARNING: Disconnect

all power to unit before

starting maintenance.

Failure to do so can cause

electrical shock resulting in

severe personal injury or

death.

Filter

Handle

Filter

Care and Cleaning of the Water Heater

Vacation and Extended Shut-Down

If the water heater is to remain idle for

an extended period of time, the power

and water to the appliance should

be turned off to conserve energy

and prevent a build-up of dangerous

hydrogen gas.

The water heater and piping should be

drained if they might be subjected to

freezing temperatures.

After a long shut-down period, the

water heater’s operation and controls

should be checked by qualified service

personnel. Make certain the water

heater is completely filled again before

placing it in operation.

NOTICE: Refer to the

Hydrogen Gas Caution in

the Operating Instructions.

Anode Rod

This water heater is equipped with

an anode rod designed to prolong

the life of the glass-lined tank. The

anode rod is slowly consumed, thereby

eliminating or minimizing corrosion of

the glass-lined tank.

Water sometimes contains a high

sulfate and/or mineral content and

together with cathodic protection

process can produce a hydrogen

sulfide, or rotten egg odor in the

heated water. Chlorination of the water

supply should minimize the problem.

NOTICE: Do not remove

the anode rod from the

water heater’s tank.

Operation with the anode

rod removed will greatly

shorten the life of the glass

lined tank and will exclude

warranty coverage.

Before You Call For Service…

Troubleshooting Tips

Save time and money! Review the chart on this page first

and you may not need to call for service.

Problem Possible Causes What to Do

Rumbling noise Water conditions in your

home caused a build up of

scale or mineral deposits in

the water heater.

● Allow a few quarts of water to run from drain valve

to remove sediment settlings.

Relief valve

producing popping

noise or draining

Pressure build up caused

by thermal expansion in a

closed system

●This is an unacceptable condition and must be

corrected. Contact the water supplier or plumbing

contractor on how to correct this. Do not plug the

relief valve outlet

Not enough or no

hot water

Water usage may have

exceeded the capacity of

the water heater.

●Wait for the water heater to recover after an abnormal

demand

A fuse is blown or a circuit

breaker tripped

●Replace fuse or reset circuit breaker

Electric supply may be off ● Make sure electric supply to water heater and section

of this manual.

The thermostat may be set

too low.

● See the Temperature regulation of the water heater

section of this manual

Leaking or open hot water

faucets

●Make sure all faucets are closed

Electric service to your

home may be interrupted

●Contact the local electric utility.

Improper wiring. ● See the Installing the water heater section of this

manual.

Manual reset limit (ECO) ●See the Temperature regulation of the water heater

Refer to page 3 for more information.

Cold water inlet

temperature may be colder

during the winter months

●This is normal. The colder inlet water takes longer to

heat.

Not enough clearance

above heat pump to allow

air to circulate.

●Make sure there is at least 8" of air space between the

top of the heat pump and the ceiling.

Water is too hot The thermostat is set too

high.

●See the Temperature regulation of the water heater

section of this manual

CAUTION: For your safety DO NOT attempt repair of electrical wiring, thermostats, heating elements or other safety

devices. Refer repairs to qualified service personnel.

Troubleshooting Alarm Codes

The water heater will make an audible beep for notification of Alarms. The

following steps should be used in determining the Alarm code:

1) Press Blinking "Service"

Button on the Home Screen

3) Alarm will be listed on

Alarm Screen

The following page details

Alarm code

2) Press Blinking "Alarm"

Button on the Service Screen

Current Alarm History of all Alarms.

(up to 25 Alarms)

Troubleshooting Tips

Save time and money! Review the chart on this page first

and you may not need to call for service.

Troubleshooting Alarm Codes

The Following Alarms will not Allow any Heating of Water.

Code Possible Causes What to Do

A008 Heater is not full of water Refer "To Fill the Water Heater" section of

this manual

A200 High Temperature ECO has tripped Refer to "Safety Control" section of this

manual

Improper Input Voltage supplied Refer to "Electrical Connections" section of

this manual

A103 Improperly installed or malfunctioning

Thermistor

Refer to "Replacement Parts" and/or