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INSTALLATION, OPERATION, AND
MAINTENANCE MANUAL FOR
HYBRID ELECTRIC HEAT PUMP
WATER HEATER
ELECTRIC HEATER COMPANY
BASE MODEL “ PBX ”
2015
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HUBBELL
ELECTRIC HEATER COMPANY
P.O. BOX 288
STRATFORD, CT 06615
PHONE: (203) 378-2659
FAX: (203) 378-3593
INTERNET: http://www.hubbellheaters.com/
-- IMPORTANT --
Always reference the full mo del num ber a nd seri al numbe r whe n callin g the factory.
WARNING / CAUTION
1. Tank is to be comple tely fi lle d wit h wa te r an d al l ai r is to be ve nte d be fo re e ne rgiz ing .
Do not turn on water heater if cold water supply shut off valve is closed.
2. Due to the rigors of transportation, all connections should be checked for tightness
before heater is plac ed i n opera tion .
3. Safety relief valve must be installed in tapping provided.
4. The refractory material used in heating elements may absorb some moisture during
transit, periods o f stora ge, or w hen sub jected to a humid environment. This moisture
absorption results in a cold insulation resistance of less than twenty (20) megohms. If this
heater has been subjected to the above condition, each heating element must be checked
for insulation resistance before energizing. A low megohm condition can be corrected by
removing the terminal hardware and baking the element in an oven at 350°F -700°F for
several hours or until the proper megohm reading is obtained.
5. KEEP AWAY FROM LIVE ELECTRICAL CIRCUITS.
Do not perform any maintenance, make any adjustments, or replace any components
inside the control panel with the high voltage power supply turned on. Under certain
circumstance s, da nge rou s p ote nt ia ls m ay e xi s t e ven w he n t he pow er su ppl y i s off. To
avoid casualties, always turn the power supply safety switch to off, turn the charge or
ground the circuit before performing any maintenance or adjustment procedure.
6. The unit is designed to opera te at press ure not more tha n 150 psi .
7. Generalized instructions and procedures cannot anticipate all situations. For this reason,
only qualified installers should perform the installations. A qualified installer is a person
who has licensed training and a working knowledge of the applicable codes regulation,
tools, equipment, and methods necessary for safe installation of an electr ic re sista nce
water heater. If questions regarding installation arise, check your local plumbing and
electrical inspectors for proper procedures and codes. If you cannot obtain the required
information, contact the company.
8. In the event of overheating, fire, flood, or physica l damage, turn off all power to your
water heater. Do not power the heater until it be en examined by a trained professional.
9. Do not store or use gasoline or other flammable vapors and li quids, such as adhesives
or paint thinner, in the vicinity of this wat er heater. If such flammable materials must
be used near the unit, open nearby doors and windows to allow for ventilation
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Safety Information and Precautions:
SECTION
PAGE No.
Operating Principle, Specifications, and Performance
4
Installation
8
Controller Operation
9
Data Logger Configuration and Operation
18
Scheduled Maintenance
22
Troubleshooting
23
Servicing and Replacement of Parts
26
Warranty
29
Please read the following safety information before proceeding:
• Water temperature over 125°F can cause severe burns instantly or
death from scalds.
• Children, disabled and elderly are at the highest risk of being scalded.
• See instructi on manual before setting temperature at the water heater.
• Feel water before bathing or showering.
• Temperature limiting valves are available, see manual.
The temperature of the water in the hea ter is regul at ed by an a djustable ,
automatic, temperature control whi ch use s sur fa c e mount ed t hermistors
located behind the jacket access panels. These automatic controls are set at the factory to
maintain a water temperature of 120°F. Although these controls are designed to industry
standards, they can fail to control temperature properly without any notice, and therefore
should be tested periodically for your protection.
To perform the test: Turn on the hot water fauc et and measure the maximum temperature wi th an accurate thermometer. If the temperature is above the safe limits for your circumstances call a service technician to adjust or replace the control.
DANGER: IF YOU DISCOVER EXTREME HOT WATER COMING FROM THE
F AUCET , IMMEDIA TELY SHUT OFF THE ELECTRICITY AT THE MAIN SWITCH
AND CALL COMPETENT SERVICE PERSONNEL. ANY OVERHEATED WATER
HEATER IS A POTENTIAL HAZARD TO LIFE AND PROPERTY. DO NOT
OPERATE UNTIL THE SOURCE OF THE PROBLEM HAS BEEN DETERMINED
AND ELIMINATED.
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OPERATING PRINCIPLE, SPECIFICATIONS, AND PERFORMANCE
How the Hubbell Heat Pump Water Heater Works
The Hubbell Model PBX Heat Pump Water Heater uses a small amount of electricity to
transfer heat from the air to water. In comparison, traditional electric water heaters use
resistive heating elements to directly heat the water. A benefit of a the heat pump water heater
is that it uses less than half the electricity of a traditional electric water heater to produce the
same amount of hot water and therefore the Hubbell Model PBX is significantly more energy
efficient compared to a conventional electric water heater.
In principle, a heat pumps works like a refrigerator in reverse. A refrige rator moves hea t from
inside the refrigerator and transfers that heat energy to the surrounding room. A heat pump
water heater on the other hand pulls free and essentially unlimited heat from the surrounding
air and transfers that heat to the water stored in the t ank.
The Hubbell Model PBX Heat Pump Water Heater can pull heat out of air as cool as 40°F,
and if it cannot provide enough heating capacity to meet demand, the water heater includes
back-up resistive heating elements to ensure the unit provi des sufficient hot water. In addit ion,
the heat pump process of removing heat from the air and transferring it to the water results in
the exhaust of cooler dryer air, with as m uch as 0.4 gallons per hour of “free” dehumidification
provided by the heat pump while the unit is heating water.
Heat Pump Functions with Operational Diagram:
1. T he bui lt in fa n draw s room air into t he he at pum p
compartment and across an evaporator coil, and exhausts
cooler and slightly dryer (dehumidified) air.
2. T he e vap ora to r c oi l ca pt ure s hea t e ner gy in the ai r a nd
transfers that ener gy to a s pecia lly form ula ted CFC free
refrigerant c o nta ine d w it hi n th e e va pora t or.
3. The refrigerant changes from a liquid to a gas as it gets
warmer.
4. The refrigera nt, now as a warm gas, exits the eva porator
and passes into a compressor.
5. The warm gas is c ompressed, causing it to become a
superheated h ot gas an d the n fl ows to the he at exc ha nge r.
6. T he hea t exc hange r tr ans fer s heat e ner gy from the
superheated hot gas to the cold water from the tank.
7. The p ump c irc ula te s col d wa te r from t he tank through the
heat exchanger resulting in a continuous transfer of heat
energy from the superheated gas to the water.
8. Ho t wat er e xi ts the hea t e xcha ng er a nd i s st ore d in the
tank.
9. T he supe rhe ate d gas conde nse s bac k to a li qui d and the
process is repeated.
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Outline Dimensions
Dimensions (Inches)
Floor to Relief
“C”
PBX40SL
40
28
49
26
9
270
PBX50SL
50
25
66
43
9
325
PBX65SL
65
28
63
40
9
365
PBX80SL
80
28
73 ½
50
9
440
PBX120SL
120
30
84
61
9
525
Model Specific Dimensional Data
Base Model
Number
Storage
Capacity
(Gallons)
Overall
Diameter
“A”
Options
•
1 ½” Male NPT inlet and outlet water connections.
Corrosion-Resistant (Copper-Alloy, Type 304L or Type 316L stainless steel) storage tank
•
for maximum lif e.
ASME tank construction.
•
Tank installed heat exchanger for use with solar or radiant heating systems.
•
Alternate single and 3 phase voltages, alternate wattages or 50 Hz available.
•
Condensate removal pump (120V plug-in) to remove and lift condensate to drain.
•
Overall
Height
“B”
Valve & Hot
Water Outlet
Floor to Cold
Water Inlet
“D”
Shipping
Weight
(lbs.)
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Specifications
Tank:
Hydrastone Cement Lined Steel
Hi-Limit:
190°F Manual Reset
Pressure Rating:
150 psi WP, 300 psi TP
First Hour Rating:
(Gallons)
Storage:
40, 50, 65, 80, 119 Gallons
PBX40SL
46
Orientation:
Vertical
PBX50SL
61
Voltages:
208-240 Volt AC
PBX65SL
70
Phase:
Single
PBX80SL
82
Frequency:
60 Hz
PBX120SL
120
Inlet Size:
¾” Female NPT
Standby Heat Loss:
(°F/hr)
Outlet Size:
¾” Male NPT
PBX40SL
0.45
Drain Size:
¾” GHT
PBX50SL
0.36
Condensate Size:
⅜” Tube
PBX65SL
0.35
Relief Valve Size:
¾” Female NPT
PBX80SL
0.28
Relief Valve Type:
T&P, 210°F, 150 psi
PBX120SL
0.28
Heat Pump:
Energy Factor:
2.33
Refrigerant:
R426A (CFC Free)
COP:
2.36
ODP:
0
Average Power Consumption :
GWP:
1349
High Fan:
680 Watts
Over Pressure Safety:
Manual Reset
Low Fan:
614 Watts
Field Chargeable:
No
Electric Elements:
Incoloy Sheathed
Ambient Air:
3800W @ 240V
Air Flow (High Fan) :
450 CFM
Insulation:
3” Polyurethane Foam
Air Flow (Low Fa n):
250 CFM
Sound Level:
62db Average @ 3 Feet
Air Filtration:
Washable / Removabl e
Warranty:
Temperature Range:
40-110°F
Tank:
10 Years
Thermostat Range:
50-160°F (°F or °C) ±3°F
Parts:
6 Years
Error Indication:
Visual and Audible
Approvals:
cULus, ENERGY STAR
Demand Response
Qualified
Capable:
Yes
Jacket:
High Impact Colorized
Child Lock Capable:
Yes Composite
Color:
White with Black Trim
240V
2.6
15.8
15.8 (3800 Watts)
18.4
220V
2.8
14.5
14.5 (3200 Watts)
17.3
208V
3.0
13.7
13.7 (2850 Watts)
16.7
Electrical
Amperage Rating Chart (Amps)
Supply Voltage
Economy Hybrid Electric Super
Total Maximum Amp Draw in Various Operating Modes
Overcurrent circuit protection rated 25 amp minimum is required. Reference local, state, and
national codes.
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Performance
Economy
Hybrid
Electric
Super
80°F
∆T
50°F
Ambien
Temp
50°F
3,240
12,965
12,965
16,205
70°F
5,400
12,965
12,965
18,365
90°F
7,020
12,965
12,965
19,985
These units are designed to meet or exceed ANSI (American National Standards Institute)
requirements and have been tested according to D.O.E. test procedures and meet or exceed the
energy efficiency requirements of NAECA, ASHRAE standard 90, ICC Code and all state
energy efficienc y pe r form ance cri te ria for e ne rgy c on sum ing a ppl ia nce s.
Ambient Air Temperature (°F)
Energy Consumption Chart
Annual Energy Consumption (EST)
Annual Energy Consumption and Operating Cost in Various Operating Modes
Ambient Air
Temperature
50°F
70°F
90°F
Energy
Factor (EF)
1.39 1.42 3159 $336 3159 $336 4671 $497 4368 $465
2.33 2.36 1884 $201 1884 $201 4671 $497 3851 $410
3.07 3.07 1430 $152 1430 $152 4671 $497 3527 $376
Coefficient of
Performance
(COP)
kW·hrs
Operating
Cost $
kW·hrs
Operating
Cost $
kW·hrs
Operating
Cost $
kW·hrs
Operating
Cost $
Energy Factor and Average Annual Operating Costs based on 2007 D.O.E. (Department of Energy) test
procedures. D.O.E. national average fuel rate electricity 10.65¢/kW·hr. Energy Factor (EF) based upon
heater operating in Hybrid mode.
Recover Rating Chart
Continuous Recovery Rating (GPH)
Ambien
t Air
Temp
70°F
90°F
Economy Hybrid Electric Super
60°F ∆T 70°F ∆T 80°F ∆T 60°F ∆T 70°F ∆T 80°F ∆T 60°F ∆T 70°F ∆T 80°F ∆T 60°F ∆T 70°F ∆T
6.5 5.6 4.9 25.9 22.2 19.4 25.9 22.2 19.4 32.4 27.8 24.3
10.9 9.4 8.2 25.9 22.2 19.4 25.9 22.2 19.4 36.8 31.6 27.6
14.2 12.2 10.6 25.9 22.2 19.4 25.9 22.2 19.4 40.1 34.4 30.0
Continuous Recovery Rating (GPH) in Various Operating Modes
Continuous Recovery rating based upon 240V power supplied to heater and fan operating in high speed
mode. ∆T represents the °F temperature rise for hot water.
Heating Capacity Chart
Heating Capacity Chart (BTU/Hr)
t Air
Economy Hybrid Electric Super
BTU/Hr Rating in Various Operating Modes
Heating Capacity based upon 240V power supplied to heater and fan operating in high speed mode.
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INSTALLATION
WARNING / CAUTION
DO NOT TURN ON THE ELECTRIC POWER S UPPLY to this equipment until heater is
completely filled with water and all air has been released. If the heater is NOT filled with water
when the power is turned on, the heating element s will burn out.
For protection against excessive pressures and temperatures, local codes require the
installation of a temperature-and-pressure (T&P) relief valve certified by a nationally
recognized laboratory that maintains periodic inspection of production of listed equipment of
materials, as meeting the requirements for Relief Valves and Automatic Gas Shutoff for Hot
Water Supply Systems, ANSI Z 21.22. THE CUSTOMER IS RESPONSIBLE TO PROTECT
PROPERTY AND PERSONNEL FROM HARM WHEN THE VALVE FUNCTIONS.
All water heaters have a risk of leakage at some unpredic table time. IT IS THE CUSTOMER'S
RESPONSIBILITY TO PROVIDE A CATCH PAN OR OTHER ADEQUATE MEANS, SO
THAT THE RESULTANT FLOW OF WATER WILL NOT DAMAGE FURNISHINGS OR
PROPERTY.
Water Heater Placement
1. Place the heater on a solid foundation in a clean, dry location neare s t t o the poi nt of
most frequent hot water use. If the heater is to be raised off the floor, the entire bottom
of the heater should be supported by a solid surface.
2. The water h eat er must be installed with the minimum clearances as shown on page 5.
3. Do not install in an area where flammable liquids or combustible vapors are present.
4. The water heater should be protected from freezing and waterlines insula t ed to reduce
energy and water waste.
5. The space that the water heater is installed must be no less than 10’ x 10’ x 7’ high
(700 cubic feet). If a smaller space is used, there must be louvers installed in the space
that will allow for 450 CFM air flow.
6. The installation location must not be cooler than 40°F. Locations with warmer
ambient air (ex. furnace rooms) are more advantageous as they provide abundant
“free” heat.
7. The heat pump dehumidifies the air and as a result produces condensate which must be
piped to a drain or outdoors.
Piping Installation
NOTE: The most effective means for preventing deterioration from accelerated corrosion
due to galvanic and stray current is the installation of dielectric fittings/unions. The installation
of these fittings is the responsibility of the installing contractor.
1. Connect the cold water inlet and hot water outlet to the appropriate connections as
shown; refer to the drawing for location and sizes.
NOTE: Certain models are supplied with a flow measuring device (flowmeter) and
temperature measuring device (thermistor) to be installed on the cold water supply
side. These items are shipped pre-wired into the uni t and stored in the heat pump
compartment. The flowmeter should be installed in-line with the cold water supply
piping with the arrow pointing toward the water heater. The thermistor should be
secured to the outside of the cold water piping and covered with insulation.
2. Install the combinatio n tempe ratu re and p ress ure sa fety re lief val ve in t he tap ping
provided. Note that this is required by law for safety considerations.
3. Install a relief valve overflow pipe to a nearby floor drain. CAUTION: No valve of
any type should be installed between t he rel i ef valve and tank or in the drain line.
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Filling the Water Heater
1. Completely close the drain valve.
2. Open the highest hot water faucet to allow all air to escape from piping.
3. Open the valve to the cold water inlet and allow the heater and piping system to
completely fill, as indicated by a stea dy fl ow of water from the open faucet.
4. Close the faucets.
5. Lift the top cover of the heat pump unit.
6. Carefully open the Air Purge Valve at the top of the heat pump unit to let air escape.
See the Outline Dimensions illustration for the location.
7. Fully tighten Air Purge Valve.
Electrical Installation
1. Enter junction box with properly sized feeder leads. Note that overcurrent circuit
protection is required. For the standard model t he overcurrent protection must be rated
25 amp minimum.
2. Connect these power leads to wires enclosed in junction box with wire nuts.
3. All other electrical connections are made at the factory; therefore, no other electrical
connections are necessary.
Final Checks
1. Check all connections for tightness.
2. Ensure that all the above steps are completed.
3. After the water is heated for the first time, monitor the water temperature as described
in the Scheduled Maintenance section.
CONTROLLER OPERATION
About the Controller
The Hubbell Heat Pump Water Heater Controller provides the user with the ability to control
and customize the operation of their heat pump water heater. The 4-digit display shows the
current status of the water heater, and can display useful information such as current
temperature conditions inside the tank, error notifications, and more. It allows basic
customization, such as mode and temperature set point, as well as more advanced options,
such as temperature differential, and display options. Once the setu p is complete the water
heater is automatic in operation and will maintain a full tank of water at the temperature setting
of the controller.
Powering up your Heat Pump Water Heater for the first time
When the unit is first powered up, the default home screen i s shown, see diagram below. This
screen consists of two alternating displays; one shows the current mode (e.g., hibr), and the
other shows the temperature set point (e.g., S120). These displays will switc h every 5 seconds.
By default, the Hubbell Hot Water Heat Pump comes programmed with a temperature
setpoint of 120°F and set to hybrid mode (“hibr”).
The Home Screen
The home screen provides a quick reference to the current status of the water heater and can
be modified to fit the user’s preference. If desired, the temperature readouts can be displayed
in Celsius (see “Changing the Temperature Scale”) and the user has the option to display
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either the temperature set point, denoted by a capita l “S” preceding t he set point, or the current
Standby: Used for taking the water heater in and out of standby mode. When the
Also serves as an execute button in certain me nus .
Mode: Used for changing modes. Serves as a cancel button in certain menus.
Used for navigating the options menu.
Up: Used for increasing numeric settings. Also scrolls up when changing
options. Can be held for auto scroll.
Down: Used for decreasing numeric settings. A l s o scrolls down when changing
options. Can be held for auto scroll.
Away: Used for entering / exiting vacation override. Also used to set / unset
child lock.
temperature conditions inside the tank, denoted by “t” and “b” preceding the top and bottom
temperatures, respectively (see “Changing the Home Screen”).
If an error condition is detecte d, the e rror code is displayed unt il the error condition is resolved.
There are several error conditions which ma y result in this behavior (see “Maintenance Alerts
and Procedures”).
As shown in the above diagram, the home screen also has two indicators; power and cool
down. The power indicator denotes whether active heating of the water is taking place. If the
power indicator light is not visible, the water in the tank has reached the desired temperature,
and thus no active heating is taking place. A blinking powe r indicator light m eans that the unit
has not yet reached the temperature set point, and that current is being drawn to power the
heating elements. A solid power indic a tor light mea ns that the u nit is ca lli ng for powe r, but is
not detecting the proper amp draw to the elements. This may indicate a problem with the
elements or that only the heat pump is running (normal for Hybrid and Economy modes). Set
the tank to Electric or Super mode to check operation of both elements.
When the compressor is running, pressure builds up within the heat pump module. The cool
down indicator shows whether or not the heat pump has had sufficient time to allow the
pressure within the system to stabilize. The duration of this cool down period is 10 minutes
and starts from t he time when the compressor tur ns off. If the cool down indicator light is not
visible, either the cool down period is complete, or the unit does not currently require the use
of the compressor. A solid cool down indic at or light indicates that the unit requires the use of
the compressor, and is currently within the cool down period.
Button Overlay
The button overlay provides the user with a means to alter the configuration settings and
control the operation of the water he ater. A brie f description o f the basic functionali ty of each
button is provided below. Detailed descriptions of how to use these buttons to perform certain
functions is provided throughout this manual.
unit is in standby, “STBY” will be displayed. This is not considered OFF
because the tank will come on at very low tem peratures to prevent freezing.
Max Heat: Used for entering / exiting max heat overri de.
Fan Off: Used for entering / exiting fan off and fan speed overrides.
Operating Modes
The Hubbell Heat Pump Water Heater is equipped with four operating modes and four
temporary settings. A brief overview of each mode and setting is listed below:
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(Economy):
Economy mode allows only the heat pump portion of the unit to operate; the electric heating
elements will not operate in this mode . This is the most efficient mode, but may not meet high
demand situations.
(Hybrid):
Hybrid mode makes efficient use of the electric heating elements. In Hybrid mode, the heat
pump provides the vast majority of the heating capacity. The top electric element will be
automatically switched on only when necessary to meet high demand situations.
(Electric):
Electric Mode disables the heat pump unit, a llowing only the elec tric heating elements to heat
the water in the tank.
(Super):
Super mode allows either of the electric elements as well as the heat pump to function
simultaneously, providing the fastest recovery option for the unit. This is the least efficient
mode, but provides the fastest heating rate hi gh demand situations.
(Vacation Override):
Vacation mode deactivates the water heater for extended periods of time by overriding the
current mode the water heater is set to. This is use ful for saving energy w hen the water hea ter
will not be used for a period of several days. Using only the heat pump, the unit will maintain
a water temperature of 50°F to prevent freezing.
(Fan Off Override):
The Fan Off setting allows the user to temporarily stop the heat pump portion from operating
for a specified number of hours . This is useful if the wate r heater is located in a populated pa rt
of a building, and the user wishes to temporarily eliminate any noise or airflow created by the
heat pump unit.
or
(Fan Speed Override):
The Fan Off button can also be used to tem porarily override the curre nt fan speed setting. This
is useful for temporarily reducing, but not eliminating, any noise created by the heat pump
unit.
(Max Heat Override):
The Max Heat setting will override the heater’s current mode setting and temporarily change
to Super Mode, which will activate one of the electric heating elemen ts as well as the heat
pump unit for a set period of time. This is useful if the user is expecting high demand hot wate r
usage for a specified number of hours.
Changing the Mode
To display the current mode, from the home screen, press the button once. This will display
the current mode the water heater is operating on for 10 seconds. This feature is useful if the
home screen is displaying an error condi tion. Allow the display to timeout, or pre ss any button
other than the button to return to the home screen.
To switch between modes, from the home screen, press the button once. This displays the
current mode. Before 10 seconds elapses, press the button again. The display will show a
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flashing “Econ” (economy). If this is the desired mode, either allow the display to timeout by
not pressing any buttons for 5 se conds or press the button to set the mode. If this is not the
desired mode, within 5 seconds continue to press the button until the desired mode is
selected (flashing). Press the button or allow the 5 second timeout to elapse to set the
mode.
Note: To cancel out of the mode select menu without changing the mode, press any button
other than the or buttons.
To activate vacation override, press the button on the controller. The display will show
“A-07,” indicating the default vacation length of 7 days. The minimum vacation length is 2
days and the maximum is indefinite. Use the or buttons to adjust the desired length of
time to use vacation mode. To set the water heater to vacation mode for an indefinite period,
use the or buttons to adjust the display until “AOFF” is visible.
Once the desired time period is set, press the button or allow the 5 second timeout to
elapse. The water heater will now be in Vacation mode. While in Vacation mode, the display
will alternate between “A-##”, where “##” is the number of days remaining in the vacation
mode period and “S.050” to indicate the maintained minimum temperature of 50°F. If the
water heater was set to vacation for an indefinite period, the display will read “OFF”, but the
tank will in fact maintain the 50°F minimum temperature.
The water heater will exit vacation mode automatically one day before the specified time
period has elapsed. It is designed this way such that when the user returns from being away,
hot water will be available. To manually cancel or end Vacation mode, press the button
once. The display should now alternate between “S.###” (the previous temperature setpoint)
and the mode the unit was set to prior t o t he sta rt of V ac at ion m ode (e. g., “hibr” ). I f the wa te r
heater has been placed in vacation mode for an indefinite period of time (“AOFF”), the unit
will have to be manually activated. To do this, press the button.
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Note: Use the or buttons to modify the setting or value on any screen designated as an
“edit mode” display.
To activate the Max Heat override, press the button on the controller. The display should
show “H-05,” indicating the default time setting of 5 hours. The minimum duration for this
override is 1 hour and the maximum is 99 hours. T o adjust the Max Hea t duration, u se the
or buttons on the controller until the display indicates the desired amount of time in hours
(e.g., “H-10” for a 10 hour period of Max Heat).
Once the desired ti me has been set, begi n th e Max H eat f eatur e eit her b y al lowin g th e scre en
to time out after 5 seconds, or by pressing the button. While the Max Heat feature is
engaged, the display w ill alternate between “ S.###,” where “###” is the temperature setting
for the unit (e.g., “S.120” for a se t t i ng of 120 degrees) and “H-##,” where “##” is the number
of hours remaining in the Max Heat session.
The Max Heat feature will automatically turn off after the specified number of hours has
elapsed. To end the session prematurely, press the button once. The display should now
alternate between the unit’s temperature set t i ng (e.g., “S.120”) and the unit mode in use prior
to Max Heat, (e.g., “hibr”).
To activate the Fan Off or Fan Speed overrides, fro m the home scree n, press the button on
the controller. The display will show “FSPd” , this represents the fan speed override. Press the
button or wait 5 seconds to continue to a djust t he Fa n Speed ove rride du ration or within 5
seconds, press the button again, and the unit will display “FOFF” on the screen, this
represents the fan off override. Once “FOFF” is selected, either wait 5 seconds or press the
button to adjust the duration of this override.
To adjust the fan override duration, the display will show “L-04” for low speed override (if
the fan speed is currently set to high speed), “h-04” for high speed override (if the fan speed
is currently set to low speed), or “F-04” for fan off override, as applicable, with “04” indicating
the default time setting for this feature as 4 hours. To adjust the duration, use the or
buttons on the controller until the display indicates the desired amount of time in hours (e.g.,
“F-10” for a 10 hour period of Fan Off).
Once the desired time has been set, to begin any fan override features, press the button or
wait 5 seconds to allow the screen to time. While the fan override feature is engaged, the
display will alternate between “S.###,” where “###” is the temperature setting for the unit
(e.g. “S.120” for a setting of 120 degrees) and “L-##”, “h-##”, or “F-##,” wher e “##” is the
number of hours remaining in the fan override session.
The Fan Off and Fan Speed feature will automatically turn off after the specified number of
hours has elapsed. To end the session prematurely, press the button once. The display
should now alternate between the unit’s temperature setting (e.g., “S.120”) and the mode in
use prior to engaging the fan override, (e.g., “hibr” for Hybrid mode).
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Child Lock
Child Lock is essentially a button locking mechanism. If the user wishes, he or she may set
the child lock, which will disrupt any future attempt to change modes, change the set point,
etc. The user will be locked out of performing any function on the device until the child lock
is released.
To activate the Child Lock feature, press and hold the button until “chLd” is displayed
on the screen. The controller is now locked.
To deactivate the child lock, press and hold the button until “un” is displayed. You will
be returned to the home screen.
Temperature Setpoint
The temperature setpoint represents the desired approximate temperature of the water inside
the heat pump water heater. The setpoint may be adjusted to your liking as high as 160°F
degrees or low as 50°F, these are pre-defined temperature limits to prevent boiling and
freezing water in the unit and surrounding pi pi ng. Standby mode lowers setpoint to 50°F.
To change the temperature set point for hot water output, from the home screen, press the
AND buttons on the controller. The setpoint temperature will flash quickly on the
display. The temperature is adjusted up or down as the or buttons are pressed.
Pressing and holding the or will allow fast scrolling through the temperatures. Once
the desired temperature setting has been reached, press the AND buttons to save the
new setpoint. The setpoint will also be saved about 5 seconds after single button presses (not
after fast scrolling). The display will now alternate between the current mode setting (e.g.,
“hibr”) and the newly set temperature (e.g., “S.116”).
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Controller Options and Settings
The Vaughn Heat Pump Water Heater is equipped with various customizable options and settings. A
brief overview of each option / setting is listed below:
To access the options menu, from the home screen, press and hold the button until the
display reads “FLtr”, this is the first selection in the options menu.
To navigate the options menu, if “FLtr” is not the desired option, continue to press the
button to cycle through the available options until the desired option is displayed. When the
option to be changed is displayed, press the or buttons to enter the edit mode. The edit
mode is active when the display is flashing and the option may be altered by pressing the
or buttons until the desired choice is displayed. To set the change, let the display timeout
after 5 seconds, press the button, or press the button. The change will be made and the
controller will return the user to the options menu.
Filter
A display alternating between “Err” (error) and “FLtr” indicates that the filter needs to be
cleaned. The error will have to be cleared manually, using this menu, after the filter has been
cleaned.
To clear the filter warning, in the edit mode press the or buttons until “cLr” is displayed
(“no” will cancel this operation). To finish clearing the warning, let the display timeout after
5 seconds, press the button, or press the button.
Fan Speed
The fan speed option gives the user the ability to adjust the fa n speed between two le vels, high
and low. While it is recommended to keep the fan speed on high for best efficiency, it can be
changed to low for noise and air flow reduction purposes.
To change the fan speed, in the edit mode press the or buttons to alternate between
high speed, “Hi”, or low speed, “Lo”. T o set t he change, let the display timeout after 5
seconds, press the button, or press the button.
Top Differential
Bottom Differential
A temperature differential represe nt s how far the water temperature can fall before the water
heater must call for heat again. For exampl e, if the setpoint is 120°F and the differential is
10°F, then after satisfying at 120°F, the water tempera t ure must fall to 110°F before the
water heater will call for heat.
The top differential controls the tempe rat ure differential in the upper section of the wate r
heater. The top differential can be adjusted between 15 and 30°F. Typically, the top
differential is larger than the bottom differential.
The bottom differential controls the temperature differential in the lower section of the water
heater. The bottom differential can be adjusted between 5 and 20°F. Typically, the bottom
differential is smaller than the top differential.
To change the top or bottom differential, in the edit mode press the or buttons to the
desired differential. To set the change, let the display timeout after 5 seconds, press the
button, or press the button.
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Buzzer
The buzzer is programmed to sound every 30 sec onds whenever a critical error has been
detected. It is designed to attract the attent i on of the user, and it is highly recommended that
the user leave this buzzer on. However, this optio n allows the user to turn the buzzer off if
desired.
To turn the buzzer on or off, in the edit mode press the or buttons to alternate
between buzzer on, “bOn”, or buzzer off, “bOFF”. To set the change, let the display timeout
after 5 seconds, press the button, or press the button.
Display
By default, the home screen will show the set poi nt (designated by an ‘S’ preceding the set
point). The display option provides the ability to change the temperature on the home screen
to show the measured water temperature inside t he tank for both the upper and lower
sections. If this option is selected, the home screen will cycle the display to show the current
mode for 5 seconds, followed by the top temperature (designated by a ‘t’ preceding the
measurement) for 5 seconds, followed by the bottom temperature (designated by a ‘b’
preceding the measurement) for 5 seconds.
To change the home display mode, in the edit mode press the or buttons to alternate
between display setpoint, “diSS”, or display water temperature, “diSt”. To set the change, let
the display timeout after 5 seconds, press the button, or press the button. When set to
“diSt”, if the heat pump or lower heating eleme nt i s actively heating, the power indicator
will blink when “b” is displayed, if the upper heating element is actively heating, the powe r
indicator will blink when “t” is displayed.
Defaults
Enabling this option will reconfigure the cont roller to factory defaults. The factory default s
are shown below.
Mode: Hybrid
Top Differential: 30
Bottom Differential: 10
Fan Speed: High
Display: Show Set Point
Degrees: Fahrenheit
Buzzer: On
To set the unit back to factory defaults, in the edit mode press the or buttons to
alternate between cancelling the operation, “no”, or resetting to default, “YES”. To set the
change, let the display timeout after 5 seconds, press the button, or press the button
Degrees
The degrees option provides the user with the ability to switch between standard and metric
temperature readings. The “dEgF” choice will set the temperatures to be displayed in
Fahrenheit, and the “dEgC” choice will set the t emperatures to be displayed in Celsius.
To change the display units, in the edit mode press the or buttons to alternate
between degrees Fahrenheit, “dEgF”, or degrees Celsius, “dEgC”. To set the change, let the
display timeout after 5 seconds, press the button, or press the button
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Prime
Press the or buttons to select ON or OFF. Activating this feature wil l t urn on just the
water pump to help it self prime. Pri will show on the display in place of the mode. Use this
feature for about 2 minutes if a pressure error occ urs after installation or after the tank is
drained. Prime is automatically activated for two minutes upon power-up if the power was
off to the control for two days or more.
Settings Overview
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DATA LOGGER CONFIGURATION AND OPERATION (optional)
About the Data Logger
The Data Logger provides the ability to inte rface remotely with your Heat Pump Water Heater.
Several tasks can be performed using this device, such as performing software updates, and
data logging. Primarily this device is used for gathering information regarding the current
operation of the Heat Pump Water Heater. It is constantly storing relevant information to
memory, such as current temperature conditions inside the tank, user settings, and energy
usage. This data can be accessed by the factory to help troubleshoot any problems, or to simply
check on the conditions of the unit.
Connecting the Data Logger
The other Data Logger connection is made by inserting the USB style connector into the
USB style port on the left side of the electronic controller. These are not USB compatible
connections. The Data Logger can be mounted on top of the tank with the supplied Velcro
pieces.
About the LED Indicator
An LED indicator located inside the data logger is used to diagnose the configuration of the
device and the status of the connection between the Data Logger and the factory servers.
• Red LED on but not blink ing: The device is in default configuration, and has establishe d
an Ad-Hoc network.
• Red LED blinking once per second: The devic e is attempting to link to a user’s network.
• Green LED on but not blinking : The device has successfully linked to a user’s ne twork.
• Green LED blinking once per second: The device is communicating with the factory
servers.
Configuring the Data Logger
When the Data Logger is first powere d, it needs to be configured to link into the user’s wireless
network. This will allow the Data Logger to establish a connection with the factory servers,
unlocking the full capability of the device. The following steps describe the connection
procedure:
1. Ensure that the Data Logger is powered, and that the LED indicator is flashing red two
times per second. This means that the device is setup in its default configuration, and
has established its own Ad-Hoc network called “WaterHeater”.
- If the LED is flashing red only once pe r second, wait one minute. The LED should
go blank for a few seconds, and then begin flashing again. The device may re peat
this step, but will eventually return to default configuration, flashing red twice
per second.
- If the LED is solid flashing orange or green, the device is already configured, and
this setup process may be skipped.
2. With a PC, Laptop, or WiFi enabled device, scan for nearby wireless networks.
3. Connect to the non-secured network called “WaterHeater”.
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4. Once connected, open an internet browser (Safari, Internet Explorer, Firefox, etc) and
navigate to “169.254.1.1”. The device setup overview page will be shown.
5. Click on “Configure Network”. The device configuration page will be shown.
6. For networks with a broadcasted SSID, continue to step 7. For networks with a hidden
SSID, or if the user wishes to enter the network infor mation manually, skip to step 11.
7. Click on “Scan for Wireless Networks”, and wait a few seconds. The webpage should
now display information (SSID, signal strength, security-enabled) pertaining to the
available wireless networks in the vicinity of the Heat Pump Water Heater.
- If the scan does not return any results, either the Wireless AP (i.e. router) is too
far away from the device, or is incompatible with the Data Logger.
8. Select which network you would like to connect the device to by clic ki ng on i t .
9. If necessary, enter the security key associated with the network, a nd press “OK”.
10. Skip to step 13.
11. Click on “Other Network”.
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12. Enter the information (SSID, security type, and security key) as required into the form
and press the “Join” button.
13. The following screen should be displa yed, showing information regarding the previous
network configuration, and the current network configuration.
14. The Data Logger is now configured. Ensure that the c onfiguration is correct by checking
the LED on the device. If it is flashing orange or green, then the device is properly
configured and connected to your network . If it is blinki ng red, the ne twork param e ters
entered may be incorrect, and if so, please return to step 1 to repeat this process.
If problems are encountered during the WiFi connection process, the following list of tips for
setting up routers for 802.11b use describes the settings for most typical access point (AP)
configurable parameters to enable compati bi l i t y with Microchip MRF24WB0Mx devices:
1. DHCP Settings - For DHCP on LAN side (where AP is DHCP server), set Router to
Enable DHCP server. Set Client Lease time to be longer tha n the typic al off time of the
station to ensure that the IP address provided doesn’t change each time the station is
powered up. If an option for Always Broadcast is present for DHCP setup (broadcasts
all DHCP responses to all clients), it should be disabled.
2. Data Rate Settings - Ensure that service rates include 802.11b. 802.11g or 802.11n
only rates (green field) should be avoided, but mixed settings are usually acceptable. If
a Basic Rate setting is defined, it should be set to 1 and 2MBPS only.
3. SSID Broadcast - Should typically be enabled so that the AP sends beacon frames
containing the SSID. If disabled, ensure t hat Microchip Stack is set for Active Scanning.
4. Channel Selection - For debug purposes, it is typical to use a fixed channel instead of
Auto Channel Selection. If a fixed channel has been selected for the MRF24 Station,
select the corresponding channel (channe l s 1, 6, or 11) for the AP.
5. Multicast Passthrough - If using multicast features (ZeroConfig for instance) ensure
that the Router is configured to enable forwardi ng of Multicast packets.
6. Beacon Interval - Set the value for the time interval between AP beacons, typical is
100msec. For lower power, this can be set to a smaller value, say 30mS, if the DTIM
interval is correspondingly increas ed.
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7. RTS Threshold - Set the value for the frame size above whi ch RTS/CTS will be used,
typical is 2347.
8. Fragmentation Threshold - Set the value for the frame size above which packets will
be fragmented, typical is 2346.
9. DTIM Interval - Set the value for Delivery Traffic Indic ation Message Interval, typical
is 3 if the Beacon Interval is set for 100mSec. For lower power with the MRF24WB0M,
if the Beacon Interval is set to 30mS, then the DTIM should be set to 100 to allow
300mS DTIM Interval.
10. WLAN Partition (or AP Isolation)- Prevents AP clients from communicating to each
other, typically disabled.
11. WMM Enable - Allows wireless multimedia traffic, disable unless necessary for other
AP services.
12. Short Guard Interval (GI) - Lowers the guard interval between frame s, disable unless
necessary for other AP services.
13. WiFi Protected Setup (WPS) - Enables WPS device discovery, disable unless
necessary for other AP services.
14. Frame Burst - Enables higher wireless packet throughput, disable unless necessary for
other AP services. This may be called turbo, or other marketing terms.
15. CTS Protection Mode – Improves reliability of 802.11g traffic, disable unless
necessary for other AP services.
16. Key Entry – Security can be entered with either a numerical key or an ASCII
passphrase. Ensure you enter what the AP expects. If just starting, it is best to have
another station like a laptop to validat e what the AP is expecting.
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SCHEDULED MAINTENANCE
WARNING / CAUTION
Before performing any maintenance procedure, make certain the power supply is OFF and
cannot accidentally be turned on.
Freezing
The tank should be fully drained in t he event the electricity has been turn ed off and if there is
danger of freezing.
Cleaning the Hot Water Heat Pump Filter
When the filter needs to be cleaned, the contro ller will alternat e between “Err” and “FLtr” . To
remove and clean the filter, pull the filter down and out of the filter slot. The filters are set in
slots on the side of the white housing, and are designed to be removed from below. Clean the
filters either by vacuuming or with soap and water. Allow filters to dry thoroughly before
replacing them inside the white housing jacket.
To clear the filter error, press and hold the button to access the options menu. “FLtr” will
be displayed. Use the up or down arrows to scroll to “cLr,” and then let the display timeout,
press the button, or press the button. The Filter error will be cleared. The error may
also be cleared by turning off power to the unit momentarily, and then turning the unit back
on.
Annual Inspection
1. Monitor temperature as follows:
a. Let water heater completely heat to the designated setpoint.
b. When heated (that is, when the decimal before the temperature display on the
controller is not blinking), draw water from heater.
c. Compare water temperature of drawn water to the temperature setpoint of the
controller. Normal variation betwe en the two points is approximately + 5°F.
d. If the two readings do not coincide within acceptable tolerances and verification has
been made of the accuracy of the temperature-reading gauge, replace the controller.
2. Lift test lever on relief valve and let water run through valve for a period of
approximately 10 seconds. This will help flush aw ay any sedime nt that might buil d up
in water passageways.
3. Inspect element flanges for leakage as follows:
a. Shut off power supply and remove element housing cover.
b. Visually inspect heating element gasket for evidence of leakage.
c. Rub finger around gasket that is between the heating element and tank flange for
any evidence of moisture. If moisture is pre sent or a water drip is observed, replace
the heating element gasket.
4. Check for loose electrical connections. Tighten as necessary.
5. Flush tank as follows
a. Shut off power supply.
b. Close valve on hot water outlet piping.
c. Open valve on drain piping.
d. Cold water inlet line pressure will be strong enough to flush sediment from the
bottom of the tank out through the drain. Let water run for 3-4 minutes.
e. Close drain valve.
f. Open hot water valve.
g. Turn power supply ON.
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TROUBLESHOOTING
Symptom
Probable Cause
Corrective Action / Remedy
No hot water
Circuit breake r tri pped at
source
Reset circuit bre ake r.
High limit switc h tri ppe d
Reset high limit swi tch.
Loose wires
Tighten wire connections.
Heating element(s) inoperable
“Econ” mode)
Check heating element operation as
Low line voltage
Have source electrical system checked by
an electrician.
Faulty controller
If controller display is not lit and power is
connections the n replace controller.
Faulty temperature sensor(s) /
If the temperature indicated by the
sensors.
Heat pump error
See heat pump err or co des be low.
Incorrect setpoint (too low)
Increase the setpoint.
Water temperatu re
Faulty temperature sensor(s) /
If the temperature indicated by the
sensors.
Heating element(s) inoperable
“Econ” mode)
Check heating element operation as
Low line voltage
Have source electrical system checked by
an electrician.
Incorrect setpoint (too low)
Increase the setpoint.
Heater improperl y sized
Verify heater is pr operl y siz ed for the
as necessary.
Relief valve
Excessive temperature or
Temperature an d pre ssure re li ef va lve s a re
tank.
below settings at
all times
(only applicable when not in
controller
controller
indicated below.
available at the co nt rolle r, check wire
controller whe n set to disp lay the a ct ual
temperature does not match the actual
temperature of the water (within ±5°F),
replace controller and/or temperature
controller whe n set to disp lay the a ct ual
temperature does not match the actual
temperature of the water (within ±5°F),
replace controller and/or temperature
(only applicable when not in
discharges
continuously
pressure in tank
indicated below.
flow rate and temperature rise of your
system. Replace elements with proper size
designed to operate if the wate r
temperature exceeds 210°F or tank
pressure exceeds the pressure rating of the
safety relief valve. If trouble is excessive
temperature, then controller is not shutting
off at the setpoint and controller must be
replaced. If pressure, likely cause is
thermal expansion. Contact plumber and
consider installing a thermal expansion
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Check Heating Element Operation
With unit calling for
heating operation of the
heating element, check
voltage at heating
element terminals
Does
voltage match
supply
voltage?
With unit calling for
heating operation of the
heating element, check for
amp draw with ammeter
around red (upper element)
and/or black (lower
element) wire(s)
With unit off, remove wires
to the element and measure
the resistance between the
element terminals.
Is
reading between
15.0 and 16.6
amps?
Is
reading between
14.4 and 15.9
ohms?
Replace
element
Heating
element OK
Is hi-limit
tripped?
Press hi-limit
reset
With unit calling for
heating operation of the
heating element, check
voltage at lower
terminals (2 and 4) of the
hi-limit thermostat
Does
voltage match
supply
voltage?
Replace hi-limit
thermostat
Replace
controller
Yes
Yes
No
OR
No
Yes
Yes
Yes
No
Yes
The following flowchart assumes that supply voltage is present to the unit and all connections
are tight.
Heat Pump Water Heater Maintenance Alerts and Procedures
The Heat Pump Water Heater unit will use error messages to notify users that maintenance
actions need to be undertaken. These messages will take the place of the home screen display
(which alternates between the mode and the current temperature setting).
A display alternating between “Err” (error) and “FLtr” indicates that the filter needs to be
cleaned. The error will have to be cleared manually after the filter has been cleaned. This is
the only error message that needs to be cleared manually; all other error messages should
automatically be cleared upon resolution of the error. See Scheduled Maintenance for how to
clean the filter.
A display alternating between “Err” (error) and “drAn” indicates that the flow of the drain
tube is being inhibited. Turn off the powe r to the unit. Remove the condensate tube and inspe ct
for blockage. Blow gently through it to clear any obstruction, if necessary. Restore power to
the unit. The error should clear automatically.
A display alternating between “Err” (error) and “PrES” indicates that the water heater has
experienced a pressure error. Turn off the power to the unit. Rem ove the top white casing, and
press the red button on the heat pum p. This will reset the pressure se nsor connection. Activate
the PRI setting in the options menu for 2 minutes to help prim e the water pump. If the problem
persists, contact a service professional.
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A display alternating between “Err” (error) and “Ph2o” indicates that the pump’s water
temperature sensor has experienced an error. Turn off the power to the unit, and contact your
local service professional.
A display alternating between “Err” (error) and “tdEF” indicates that the defroster temperature
sensor has experienced an error. Turn off the power to the unit, and cont act your l oca l service
professional.
A display alternating between “Err” (error) and “Ch2o” indicates that the controller’s water
temperature sensor has experienced an error. Turn off the power to the unit. Examine the
connections on the back of the controller to verify that connections are complete, and then
repower the unit. If the problem persists, cont act your local service professional.
A display alternating between “Err” (error) and “conn” indicates that a communications error
has occurred between the controller on the upper heat pump unit and the controller on the
water heater. Turn off the power to the unit, and examine the connections on the back of both
controllers. Power the unit. If the error continues, contact a service professional.
A display alternating between “Err” (error) and “CHS” indicates that a checksum error has
occurred. This error may be resolved by turning off power to the unit, and then turning the
device back on. If the device does not return to normal operation once the power has been
restored, turn off the power again and contact a s ervice professional.
The home screen displays “dEFr” when the unit is in defrost mode. Defrost mode may occur
as a result of the fan failing to operate or very low air temperature. When the defrost cycle is
complete the unit will return to its normal mode of operation.
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SERVICING & REPLACEMENT OF PARTS
WARNING / CAUTION
Before servicing or replacing any part make sure to turn the power supply switch to the OFF
position.
NOTE: Reference wiring diagram at the end of the manual.
Surface Temperature Hi-Limit Cutout Switch
1. Disconnect power from unit.
2. Remove upper access cover.
3. Disconnect the wires from the four terminals.
4. Remove hi-limit switch.
5. Install new high limit switch.
6. Rewire hi-limit switch according to wiring diagram.
7. Reinstall access cover.
Heating Element
1. Disconnect power from unit.
2. Shut off incoming water supply.
3. Attach hose to drain connection.
4. Lift manual release lever on relief valve to let air into system or break union on
outgoing water line and drain water from tank.
5. Remove upper and/or lower access cover, as applicable.
6. Disconnect the wires from the heating element terminals.
7. Remove the element from the tank.
8. Install new gasket and new heating element.
9. Rewire element according to wiring diagram.
10. Fill tank and check around gasket for any leaks. Ti ght en nuts as required.
11. Reinstall access cover(s).
Relief Valve
1. Disconnect power from unit.
2. Shut off incoming water supply.
3. Lift test lever on relief valve to relieve pressure in tank.
4. Disconnect overflow piping.
5. Unscrew relief valve, remove assembly and replace with new one.
6. Connect overflow piping.
7. Turn on incoming water supply and check for leaks.
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Ten Year Limited Tank Repl a cement Policy
One Year Limited Parts Warranty
Hubbell Electric Heater Company, (hereinafter called the company) offers the following Limited Warranty
and Tank Replacement Policy to the purchaser/owner of this stone-lined residential water heater.
This Limited Warranty and Tank Replacement Policy is not transferable beyond the original
purchaser/owner and is not valid if tank is removed from initial installation site. The Company reserves the
right to require proof of purchase as a condition of this warranty. Excludes any implied warranty of
merchantability or fitness for any particular purpose.
LIMITED WARRANTY
DURATION: The warranty is effective for (1) year beginning with the date of original purchase. At the
time the claim is filed, if the original purchaser cannot provide an original sales receipt, deed or equivalent
document in the case of a new home purchase, this warranty shall begin from the date of manufacture as
indicated by the serial number.
COVERAGE: The warranty covers any component part of the residential electric water heater proven to be
defective in workmanship or material. Recovery under the terms of this agreement is subject to prior
approval by the company.
COMPANY OBLIGATION: Repair or replacement is at the option of the company and constitutes the
fulfillment of ALL obligations of the Company hereunder.
LIMITATION: All repairs or replacements will be made F.O.B. the company. The purchaser must pay for
transportation service, labor, installation, administrative fees or other costs involving the repair or
replacement of such component parts.
YOUR ACTION: When you discover a defect, immediately notify the dealer from whom the heater was
purchased. If you cannot locate the dealer, contact the Company.
TANK REPLACEMENT POLICY
DURATION: (10) years from the date of original purchase. If the original purchaser cannot provide an
original sales receipt, deed or equivalent document in the case of a new home purchase, this warranty shall
begin from the date of manufacture as indicated by the serial number.
COVERAGE: Replacement policy covers only the storage tank for leaks caused by the corrosive effects of
the water under normal and proper use. Recovery under the terms of this agreement is subject to prior
approval by the company. The tank replacement policy excludes any performance warranty implied or
specific of merchantability and fitness for its intended use.
COMPANY OBLIGATION: Repair of the original tank or replacement of the entire heater with a new
comparable model is at the option of the Company and constitutes the fulfillment of all the obligations of
the Company hereunder. In replacing or repairing the residential water heater, the Company reserves the
right to make such changes in details of design, construction or material as shall in their judgment constitute
an improvement of former practices.
REPLACEMENT: When a replacement is made under the terms of this policy, the replacement unit will
have a policy of replacement only for the remaining time under the original policy. The Company reserves
the right to require return of the defective unit at the expense of the purchaser.
LIMITATION: All repairs or replacements will be made F.O.B. the Company. The purchaser must pay for
transportation, service, labor installation, administrative fees or other costs involving the repair or
replacement of such part.
YOUR ACTION: When you discover a defect, immediately notify the dealer from whom the heater was
purchased. If you cannot locate the dealer, contact the Company
EXCLUSIONS AND LIMITATIONS
Limited Warranty and Tank Replacement Policy are valid only if you comply with the following
conditions and limitations:
1. The water heater must be correctly installed according to the installation manual provided with the
unit and all applicable local and national codes.
2. The unit must be ope rat ed withi n the fact or y cal ibra ted t e mperat ure limits a nd water pressure not
exceeding 150 psi.
3. Any failure or malfunction that res ults from improper or negl igent operation, accident, abuse (including
freezing), misuse, unauthorized alteration or improper maintenance is specifically excluded.
4. Any failure or malfunction that results from failure to keep the tank full of potable water, free to
circulate at all times, and free of damaging water sediment or scale deposits, is specifically excluded.
In areas where adverse water conditions are suspected (i.e. calcium and other minerals), it is essential
that the water be tested and appropriate action be taken to prevent damage to the water heater.
5. This Limited Warranty and Tank Replacement Policy specifically exclude any implied warranty of
merchantability or of fitness for any particular purpose, as well as any performance warranty.
IN NO EVENT SHALL THE COMPANY BE LIABLE FOR ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES WHATSOEVER. Some states do not allow the exclusion or limitation
of implied warranties or of liability for incidental or consequential damages, so the above limitation(s) or
exclusion(s) may not apply to you.
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NOTES
30
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NOTES
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P.O. BOX 288
STRATFORD, CT 06615-0288
PHONE: (203) 378-2659
FAX: (203) 378-3593
INTERNET: http://www.hubbellheaters.com/
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