Hubbell CE110 User Manual
OPERATING AND MAINTENANCE MANUAL FOR
COMMERCIAL ELECTRIC WATER HEATER
ELECTRIC HEATER COMPANY
BASE MODEL “ CE110 ”
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 model number and serial number when calling the factory.
The following information should be noted at time of installation and retained for future reference.
Serial No.:
Date Installed:
Dealer's Name:
Address:
City and State:
2
WARNING / CAUTION
1. Please read all instructions prior to installing water heater.
2. Tank is to be completely filled with water and all air is to be vented before energizing.
3. Due to the rigors of transportation, all connections should be checked for tightness before heater
is placed in operation.
4. Safety relief valve must be installed in tapping provided.
5. The refractory material used in heating elements may absorb some moisture during transit,
periods of storage, or when subjected 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.
6. 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 circumstances,
dangerous potentials may exist even when the power supply is 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.
7. This appliance is designed to store water heated only by the electrical elements provided, at
temperature of not more then 125°F and pressures of not more than 150 psi. Heat input from
any external or additional source will void the warranty.
8. The design anticipates the proper installation and care in use of the product. There is a risk of
property damage and personal injury inherent in these of any hot water system. The Company
cannot supervise the installation and therefore make it a specific condition of the warranty
that the customer will supervise the installation and use of this product to be sure they are
performed in accordance with safe guidelines and proper local or national codes. 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 electric resistance 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.
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TABLE OF CONTENTS
SECTION TITLE PAGE #
I GENERAL INFORMATION 6
II INSTALLATION GUIDELINES 8
III SCHEDULED MAINTENANCE AND OPERATION 14
IV TROUBLESHOOTING 16
V SERVICING AND REPLACEMENT OF PARTS 17
VI WARRANTY 21
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High Limit
Access Cover
High Limit Safety
Switch - Manual reset
switch designed to shut
off all electrical circuits
if water reaches 190°F
Thermostat - For constant
temperature control. Factory
set at 125°F.
Thermostat and Heating
Element Access Cover
PARTS LOCATION DIAGRAM
Electrical Junction
Box Cover
Hot Water
Outlet -
(Cold water
inlet not
shown on
bottom).
Temperature &
Jacket and Insulation -
Durable & easy-to-clean,
Long-Life Heating Element -
Waste is reduced with immersed
heating element because all available
heat passes directly into the water.
Low watt density element assures
longer life - and
5
reduces mineral
build up.
jacket is heavy -gauge
steel, finished with high
gloss enamel. Insulation
consists of high-density
fiberglass blankets.
Pressure Safety
Relief Valve
SECTION I - GENERAL INFORMATION
GENERAL DESCRIPTION
This book describes a packaged electric water heater that is a stationary, self-contained unit. The
complete assembly consists of the storage tank, immersion electric heating element(s), thermostat,
safety relief valve, safety high temperature cut out, and any other required electrical operating control.
Optional equipment may be supplied with your unit. Please consult the product drawing for details
specific to your assembly. The unit is factory assembled, insulated, jacketed, painted, wired, tested, and
ready for electrical and plumbing service connections.
CONSTRUCTION
TANK
The one-gallon storage tank is constructed of stainless steel and is designed for a maximum allowable
working pressure of 150 psi (300 psi TP).
TANK CONNECTIONS
The heater is supplied with separate ¼” MNPT cold water and hot water connections. A ¾-inch FNPT
connection is located on the side of the heater for mounting a combination safety temperature and
pressure relief valve. An overflow line should be utilized from the relief valve outlet to a floor drain.
See drawing for locations and sizes.
HEATING ELEMENT
The water heater is supplied with either a 1000 watt or a 450-watt electric immersion heating element
assembly, rated for 120 volts, and composed of a copper sheathed element that is brazed into a 1” NPT
brass plug.
TEMPERATURE HIGH LIMIT SWITCH
As a safety device, a surface mounted high temperature cut-off switch with manual reset, factory set at
190° F, is provided. In the event of an over-temperature condition, the thermostat will disengage the
power from the system. If this switch operates, do not attempt to reset. A dangerous situation is
indicated and a qualified service person should be called to find the source before the unit is operated
again.
Manual Reset
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CONTROL THERMOSTAT
The temperature of the water in the heater is regulated by the adjustable, automatic, immersion
thermostat located behind the jacket front cover. This automatic control is set at the factory to
maintain a water temperature of 125°F to reduce the risk of scald injury. The thermostat dial is
graduated with markings form 1 to 10 with 10 being the hottest.
Capillary Tube and Bulb
OUTER SHELL AND INSULATION
The tank is encapsulated in 1-inch thick fiberglass insulation. The tank and insulation is protected by a
painted steel protective jacket.
TEMPERING VALVE (Optional)
An optional tempering valve may be supplied to increase the amount of available hot water. The ½”
NPT valve is adjustable from 100° - 130° F and is typically used when supplying hot water to multiple
lavatories from a single CE110.
WALL BRACKET (Optional)
An optional wall bracket is available
for easy mounting of the heater.
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