Westinghouse WEXXXXC2X055, WEXXXXC2X045, WER052C2X, WEC080C2X, WEC115C2X User Manual
...
Use and Care Manual
Installation
Start-Up
Maintenance
Electric
Water Heaters
Parts
Warranty
Staged Operation Models
This manual must only be used by a qualied installer / service technician. Read all instructions in this manual before
installing. Perform steps in the given order. Failure to do so could result in substantial property damage, severe
personal injury, or death.
California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
Westinghouse reserves the right to make product changes or updates without notice and will not be held liable for
typographical errors in literature.
The surfaces of these products contacted by potable (consumable) water contain less than 0.25% lead by weight as
required by the Safe Drinking Water Act, Section 1417.
NOTE TO CONSUMER: PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE.
whl-026 Rev. 4.28.15
2
The following dened terms are used throughout this manual
to bring attention to the presence of hazards of various risk
levels or to important product information.
DANGER indicates an imminently hazardous situation which,
if not avoided, will result in serious personal injury or death.
For Your Records
Write the Product Model and Serial Numbers:
Model # ___________________________________________
Serial # ____________________________________________
These numbers are listed on the product ratings label.
Keep this manual and information for future reference.
WARNING indicates a potentially hazardous situation which, if
not avoided, could result in personal injury or death.
CAUTION indicates a potentially hazardous situation which, if
not avoided, may result in moderate or minor personal injury.
CAUTION used without the safety alert symbol indicates
a potentially hazardous situation which, if not avoided, may
result in property damage.
NOTICE is used to address practices not related to personal
injury.
Foreword
This manual is intended to be used in conjunction with other
literature provided with the water heater. This includes all
related control information. It is important that this manual,
all other documents included in this system, and additional
publications including the Code for the Installation of Heat
Producing Appliances (latest version), be reviewed in their
entirety before beginning any work.
Installation should be made in accordance with the regulations
of the Authority Having Jurisdiction, local code authorities, and
utility companies which pertain to this type of water heating
equipment.
Authority Having Jurisdiction (AHJ) – The AHJ may be a federal,
state, local government, or individual such as a re chief, re
marshal, chief of a re prevention bureau, labor department
or health department, building ocial or electrical inspector,
or others having statutory authority. In some circumstances,
the property owner or his/her agent assumes the role, and
at government installations, the commanding ocer or
departmental ocial may be the AHJ.
NOTE: Westinghouse reserves the right to modify product
technical specications and components without prior notice.
For the Installer
This water heater must be installed by qualied and licensed
personnel. The installer should be guided by the instructions
furnished with the water heater, and by local codes and utility
company requirements.
Installations Must Comply With:
Local, state, provincial, and national codes, laws, regulations,
and ordinances.
The latest version of the National Electrical Code, NFPA No. 70.
IMPORTANT SAFETY INSTRUCTIONS
When using electrical appliances, basic safety precautions
to reduce the risk of re, electric shock, or injury to persons
should be followed, including:
1. READ ALL INSTRUCTIONS BEFORE USING THIS WATER
HEATER.
2. This water heater must be grounded. Connect only to a
properly grounded outlet. See Part 4 – Wiring, this manual,
for grounding details.
3. Install or locate this water heater only in accordance with
the provided installation instructions.
4. Use this water heater only for its intended use as described
in this manual.
5. Do not operate this water heater if it has been damaged or
dropped.
8. This water heater should be serviced only by qualied service
personnel. Contact the water heater installer or a qualied
service agency for examination, repair, or adjustment.
SAVE THESE INSTRUCTIONS
Table of Contents
Part 1 - General Safety Information 3
A. When Servicing the Water Heating System 3
B. Heater Water 3
C. Freeze Protection 3
D. Water Temperature Adjustment 3
Part 2 - Prepare the Water Heater 4
A. What’s in the Box 4
B. Locating the Water Heater 4
C. Water Chemistry Requirements 6
Part 3 - Piping 7
A. Plumbing 7
B. Thermal Expansion 7
C. Condensation 7
D. Insulation Blankets 7
E. Temperature and Pressure Relief Valve 7
F. Scalding 8
G. Filling the Heater 8
H. Applications 9
Part 4 - Wiring 9
Part 5 - Installation Checklist 10
Part 6 - Operation 10
A. Combination Thermostat and High Limit Control (ECO)10
B. Thermostat Adjustment and ECO Reset 11
C. Heating Element Replacement Procedure 11
Part 7 - Maintenance 12
Part 8 - Troubleshooting 14
Limited Warranty 15
Customer Installation Record Form 17
whl-026 Rev. 4.28.15
Part 1 - General Safety Information
This water heater is approved for indoor installations only
and is not intended for use as a pool heater. Clearance to
combustible materials: 0” top, bottom, sides, and back. Heater
must have room for service: 24” front, 6” top, and 6” sides are
minimum recommended service clearances. (A combustible
door or removable panel is acceptable front clearance.) This
water heater has been approved for closet installation and
installation on combustible ooring. Do not install directly
on carpeting. Install the water heater in a location where
temperature and pressure relief valve discharge or a leak will
not result in damage to the surrounding area. If such a location
is not available, install an auxiliary catch pan.
Installer - Read all instructions in this manual before installing.
Perform steps in the given order.
User - This manual is for use only by a qualied heating
installer / service technician. Have this water heater serviced /
inspected annually by a qualied service technician.
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE
CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE,
SEVERE PERSONAL INJURY, OR DEATH.
NOTE: If the water heater is exposed to the following, do not
operate. Immediately call a qualied service technician.
1. Fire
2. Damage
3. Water
Failure to follow this information could result in property
damage, severe personal injury, or death.
DO NOT USE THIS WATER HEATER IF ANY PART HAS
BEEN SUBMERGED IN WATER. Immediately call a qualied
service technician. The water heater MUST BE replaced if it
has been submerged. Operating a previously submerged
water heater could result in property damage, severe personal
injury, or death.
NOTE: Water heater damage due to ood or submersion is
considered an Act of God, and IS NOT covered under product
warranty.
NOTE: Obey all local codes. Obtain all applicable permits
before installing the water heater.
NOTE: Install all system components and piping in such a
manner that does not reduce the performance of any re
rated assembly.
3
UNCRATING THE WATER HEATER - Any claims for damage
or shortage in shipment must be led immediately against the
transportation company by the consignee.
A. When Servicing the Water Heating System
Be sure to disconnect electrical power before performing
service. Failure to do so could result in electrical shock, property
damage, serious personal injury, or death.
NOTE: When inquiring about service or troubleshooting,
reference the model and serial numbers from the water heater
rating label.
To avoid severe burns, allow water heater and associated
equipment to cool before servicing.
B. Heater Water
Do not use petroleum-based cleaning or sealing compounds in
a water heating system. Gaskets and seals in the system may be
damaged. This can result in substantial property damage.
Do not use “homemade cures” or “patent medicines”. Damage
to the water heater, substantial property damage, and/or serious
personal injury may result.
C. Freeze Protection
NOTE: Consider piping and installation when determining
heater location. Failure of the water heater due to freeze related
damage IS NOT covered by product warranty.
NEVER use any toxic chemical, including automotive, standard
glycol antifreeze, or ethylene glycol made for hydronic (nonpotable) systems. These chemicals can attack gaskets and seals
in water systems, are poisonous if consumed, and can cause
personal injury or death.
D. Water Temperature Adjustment
If the water heater is going to have a set temperature above
120oF, it is recommended to use an ASSE 1017 rated mixing valve
to avoid severe burns or death from scalding temperatures.
Households with small children, disabled, or elderly persons
may require a 120oF or lower temperature setting to prevent
severe personal injury or death due to scalding.
High heat sources (sources generating heat 100oF / 37oC or
greater, such as stove pipes, space heaters, etc.) may damage
plastic components of the water heater as well as plastic
vent pipe materials. Such damages ARE NOT covered by
warranty. It is recommended to keep a minimum clearance of
8” from high heat sources. Observe heat source manufacturer
instructions, as well as local, state, provincial, and national
codes, laws, regulations and ordinances when installing this
water heater and related components near high heat sources.
Do not use this water heater for anything other than its
intended purpose (as described in this manual). Doing so
could result in property damage and WILL VOID product
warranty.
Approximate Time / Temperature Relationships in Scalds
120oF More than 5 minutes
125oF 1 1/2 to 2 minutes
130oF About 30 seconds
135oF About 10 seconds
140oF Less than 5 seconds
145oF Less than 3 seconds
150oF About 1 1/2 seconds
155oF About 1 second
Table 1 - Approximate Time / Temperature Relationships in Scalds
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Part 2 - Prepare the Water Heater
Remove all sides of the shipping crate to allow the heater to be
moved into its installation location.
COLD WEATHER HANDLING - If the water heater has been
stored in a very cold location (BELOW 0oF) before installation,
handle with care until the components come to room
temperature. Failure to do so could result in damage to the
water heater.
A. What’s in the Box
Components included with the water heater:
• Drain Valve
• Temperature and Pressure Relief Valve
• Insulation
• Cover with Screws
• Hot Water Outlet
• Dip Tube
• Use and Care Manual and Warranty
NOTE: Some components may ship factory installed.
B. Locating the Water Heater
Incorrect operating conditions can lead to damage to the
heating system and put safe operation at risk. Ensure that the
installation location adheres to the information included in
this manual. Failure to do so could result in property damage,
serious personal injury, or death. Failure of the water heater
or components due to incorrect operating conditions IS NOT
covered by product warranty.
2. Choose a location for the water heater as centralized to the
piping and electrical system as possible. Also, locate the water
heater and domestic water piping where it will not be exposed
to freezing temperatures. All piping should be insulated.
Additionally, place the water heater so that the drain, controls,
and inlets/outlets are easily accessible.
Locate the water heater where any leakage from the relief valve,
related piping, tank, or connections will not result in damage
to surrounding areas or lower oors of the building. The water
heater should be located near a oor drain or installed in a drain
pan. Leakage damages ARE NOT covered by warranty.
This water heater is certied for indoor use only. DO NOT
INSTALL OUTDOORS. Outdoor installations ARE NOT covered
by warranty. Failure to install the water heater indoors could
result in property damage, severe personal injury, or death.
1. Installation Area (Mechanical Room) Operating Conditions
• Ensure ambient temperatures are higher than 32oF / 0oC
and lower than 104oF / 40oC
• Avoid continuously high levels of humidity
• Never close existing ventilation openings
NOTE: When installing in a zero clearance location, it may
not be possible to read or view some product labeling. It is
recommended to make note of the water heater model and
serial number.
The service life of the water heater’s exposed metallic surfaces,
such as the junction box, is directly inuenced by proximity
to damp and salty marine environments. In such areas higher
concentration levels of chlorides from sea spray coupled with
relative humidity can lead to degradation of water heater
components.
Figure 1 - Recommended Service Clearances - NOTE: Overhead
View Not Representative of All Models
NOTE: To save on heating costs and improve energy eciency
keep the distance between the water heater and xtures to
a minimum to reduce heat loss from excess piping and keep
friction loss at a minimum. Ensure all water heater piping is
properly insulated to minimize heat loss.
NOTE: If you do not provide the minimum clearances shown
in Figure 1, it might not be possible to service the water heater
without removing it from the space.
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Top View
Figure 2 - Dimensional Drawing - Staged Operation
Specications and Dimensions Water Temperature Ratings
Residential
Models
WER052C2X*** 52 5 3/4” 58 1/4” 66 3/4” 19 1/2” UL 174
Light
Commercial
Models
WEC080C2X*** 80 6 1/2” 60” 69” 23 1/4”
WEC100C2X*** 100
WEC115C2X*** 115 60 1/4” 70 1/2” 224
Table 2 - Specications and Dimensions - See Table 3 for Electrical Specications
Model # # Elements and Thermostats Available Wattage Voltage
WE****C2X030
WE****C2X045 4,500 19
WE****C2X055 5,500 23
Table 3 - Electrical Specications Including Corresponding Wattages / Voltages / Amperages
Storage
Capacity
Storage
Capacity
A B C D
A B C D
7 1/4”
52” 61”
2
Safety
Listing
Safety
Listing
UL 1453
27”
3,000
Hot / Cold
Inlets
3/4” NPT
240
Shipping
Weight
(Lbs. Est.)
118
Shipping
Weight
(Lbs. Est.)
151
206
Min.
Delivered
Temp.
110oF
(43.3 C)
Min.
Delivered
Temp.
120oF
(48.8 C)
Full Load Current in Amps
(Single Phase)
Max.
Delivered
Temp.
150oF
(65.5 C)
Max.
Delivered
Temp.
180oF
(82.1 C)
13
High
Temp.
Limit
170oF
(76.6 C)
High
Temp.
Limit
200oF
(93.3 C)
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NOTE: In the State of California, the water heater must be
braced, anchored, or strapped to avoid moving during an
earthquake. Contact local utilities for code requirements in your
area. Visit http://www.dsa.dgs.ca.gov or call 1-916-445-8100
and request instructions.
However, applicable local codes shall govern installation.
For residential water heaters of a capacity of greater than 52
gallons, consult the local building jurisdiction for acceptable
bracing procedures.
3. Check area around water heater. Remove any combustible
materials, gasoline, and other ammable liquids.
This water heater must not be located near ammable liquids
such as gasoline, butane, liqueed propane, adhesives, solvents,
paint thinners, etc., as the controls of this water heater could
ignite these vapors and cause an explosion resulting in property
damage, severe personal injury, or death.
4. If the water heater is to replace an existing water heater, check
for and correct any existing system problems such as:
• System leaks
• Location that could cause the system and water heater
to freeze and leak
• Incorrectly-sized expansion tank
5. This water heater must be installed vertical on a level surface.
C. Water Chemistry Requirements
Chemical imbalance of the water supply may aect eciency
and cause severe damage to the water heater and associated
equipment. Westinghouse recommends having water quality
professionally analyzed to determine whether it is necessary to
install a water softener. It is important that the water chemistry
on both the domestic hot water and central heating sides are
checked before installing the water heater, as water quality
will aect the reliability of the system. In addition, operating
temperatures above 135oF will further accelerate the buildup of lime scale and may shorten the service life of the water
heater. Failure of a water heater due to lime scale build-up,
low pH, or other chemical imbalance IS NOT covered by the
warranty.
Outlined below are water quality parameters that need to be
met in order for the system to operate eciently for many years.
Water Hardness
Water hardness is mainly due to the presence of calcium and
magnesium salts dissolved in water. The concentration of these
salts is expressed in mg/L, ppm, or grains per gallon as a measure
of relative water hardness. Grains per gallon is the common
reference used in the US water heater industry. Hardness
expressed as mg/L or ppm may be divided by 17.1 to convert to
grains per gallon. Water may be classied as very soft, slightly
hard, moderately hard, or hard based on its hardness number.
The minerals in the water precipitate out as the water is heated
and cause accelerated lime scale accumulation on a heat transfer
surface. This lime scale build-up may result in premature failure
of the water heater.
Water that is classied as hard and very hard must be softened
to avoid water heater failure.
CLASSIFICATION MG/L OR PPM GRAINS/GAL
Soft 0 - 17.1 0 - 1
Slightly Hard 17.1 - 60 1 - 3.5
Moderately Hard 60 - 120 3.5 - 7
Hard 120 - 180 7 - 10.5
Very Hard 180 and over 10.5 and over
If the hardness of the water exceeds the maximum level of 12
grains per gallon, the water should be softened to a hardness
level no lower than 5 grains per gallon. Water softened as low
as 0 to 1 grain per gallon may be under-saturated with respect
to calcium carbonate, resulting in water that is aggressive and
corrosive.
pH of Water
pH is a measure of relative acidity, neutrality, or alkalinity.
Dissolved minerals and gases aect water pH. The pH scale
ranges from 0 to 14. Water with a pH of 7 is considered neutral.
Water with pH lower than 7 is considered acidic. Water with a
pH higher than 7 is considered alkaline. A neutral pH (around
7) is desirable for most potable water applications. Corrosion
damage and tank failures resulting from water pH levels
of lower than 6 or higher than 8 ARE NOT covered by
warranty. The ideal pH range for water used in a water heater
is 7.2 to 7.8.
Total Dissolved Solids
Total Dissolved Solids (TDS) is a measurement of all minerals
and solids dissolved in a water sample. The concentration of
TDS is usually expressed in parts per million (ppm).
Water with a high TDS concentration will greatly accelerate
lime and scale formation in the hot water system. Most high
TDS concentrations precipitate out of the water when heated.
This can generate a scale accumulation that will greatly reduce
the service life of the water heater.
The manufacturer of the water heater has no control over
water quality, especially TDS levels in your system. TDS in
excess of 2000 ppm will accelerate lime and scale formation
on the element or the heat exchanger. Water heater failure
due to TDS in excess of 2000 ppm IS NOT covered by warranty.
Failure of a water heater due to lime scale build-up IS NOT
covered by warranty.
Hardness: Less than 12 grains
Chloride levels: Less than 100 ppm
pH levels: 6 - 8
TDS: Less than 2000 ppm
Sodium: Less than 20 mG/L
Failure of electric elements due to lime scale build-up on the
heating surface, low pH, or other imbalance IS NOT covered
by the warranty.
whl-026 Rev. 4.28.15
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