Eemax EX280T2T, EX280T2T ML, EX280T2T FS, EX280T2T S, EX280T3 Installation Manual

ELECTRIC INSTANTANEOUS WATER HEATER

INSTALLATION GUIDE AND OWNERS MANUAL

IF YOU REQUIRE ANY HELP OR HAVE ANY QUESTIONS RELATING TO THE
INSTALLATION OR PERFORMANCE OF THIS HEATER, PLEASE CALL OUR
TECHNICAL SERVICE DEPARTMENT TOLLFREE : 1-800-543-6163.
HAVE THE INFORMATION LISTED BELOW BEFORE CALLING :

SERIAL NO. MODEL NO. EX280 INSTALLATION DATE

EEMAX “THREE MODULE, SINGLE PHASE”

WATER HEATERS

MODELS COVERED:- EX280T2T -208/240 V

SPECIAL_________,______V

READ THE GENERAL SAFETY SECTION BEGINNING ON THE INSIDE COVER
AND THEN THIS ENTIRE MANUAL BEFORE INSTALLING OR OPERATING THIS
WATER HEATER. IF YOU DON’T FOLLOW THE SAFETY RULES, THE UNIT WILL
NOT OPERATE PROPERLY AND IT COULD CAUSE DEATH, SERIOUS BODILY
INJURY AND/OR PROPERTY DAMAGE. READ ALSO THE ENCLOSED
WARRANTY CARD. WARRANTY OF THIS WATER HEATER WILL DEPEND ON
PROPER INSTALLATION AND OPERATION. THE WARRANTY SHALL BE VOID IF
THE DESIGN HAS BEEN ALTERED IN ANY WAY WHATSOEVER. THE
MANUFACTURER OF THIS HEATER WILL NOT BE LIABLE FOR ANY DAMAGES
BECAUSE OF FAILURE TO COMPLY WITH THE INSTALLATION AND
OPERATING INSTRUCTIONS OUTLINED ON THE FOLLOWING PAGES.

THE INSTALLATION MUST CONFORM WITH THE INSTRUCTIONS IN THIS
MANUAL; ELECTRIC COMPANY RULES; AND THE LOCAL CODES, OR IN
THE ABSENCE OF LOCAL CODES, WITH THE LATEST EDITION OF THE
NATIONAL ELECTRICAL CODE. THIS PUBLICATION IS AVAILABLE FROM
YOUR LOCAL GOVERNMENT OR PUBLIC LIBRARY OR ELECTRIC COMPANY
OR BY WRITING UNDERWRITERS LABORATORIES, 333 PFINGSTEN ROAD
NORTHBROOK, IL, 60062.

WARNING

1

GENERAL SAFETY

The “Eemax three Module, Single Phase” heater is specifically designed to take in cold water
and heat it to temperatures suitable for normal domestic usage up to a maximum of 140 F(60
C). To obtain optimum performance and energy savings, the unit should be located as
near as possible to the point of use. “Thermostatic” models indicated by the letters “T2T or
T3” after the model number, these models and only these, can be fed with pre-heated water
and be used to boost temperature

The unit is supplied with 3/4” NPT pipe connections. Under no circumstances use a blow
torch on pipe which is connected to the heater (serious damage to the electronic flow
switch will result). Carefully use Teflon tape, ensuring no debris enter the heater. Do not
use pipe dope.

Also, ensure that the pipes are clear of installation debris before fitting the heater.

THIS HEATER MUST HAVE THREE DEDICATED INDEPENDENT

208/240V CIRCUITS, USING CORRECTLY RATED WIRES AND

CIRCUIT BREAKERS.

WARNING

IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE
CAN CAUSE DEATH, SERIOUS BODILY INJURY OR PROPERTY DAMAGE. REFER TO
THIS MANUAL FOR ASSISTANCE OR CONSULT THE LOCAL ELECTRIC UTILITY FOR
FURTHER INFORMATION.

FAILURE TO GROUND THE SYSTEM MAY RESULT IN DEATH OR SERIOUS INJURY.

WARNING

WARNING

WATER HEATERS EQUIPPED FOR ONE VOLTAGE ONLY: THIS WATER HEATER MAYBE
EQUIPPED FOR ONE VOLTAGE TYPE ONLY: CHECK THE RATING PLATE ON THE FRONT
COVER OF UNIT FOR THE CORRECT VOLTAGE. DO NOT USE THIS WATER HEATER WITH
ANY OTHER VOLTAGE OTHER THAN THE ONE SHOWN ON THE MODEL RATING PLATE.
FAILURE TO USE THE CORRECT VOLTAGE CAN CAUSE PROBLEMS WHICH CAN RESULT
IN DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. IF YOU HAVE ANY
QUESTIONS OR DOUBTS CONSULT EEMAX OR YOUR ELECTRIC COMPANY.

WARNING

HAZARD OF ELECTRICAL SHOCK! BEFORE REMOVING THE COVER OR SERVICING THE
WATER HEATER, MAKE SURE THE ELECTRICAL SUPPLY TO THE WATER HEATER IS
TURNED “OFF”. FAILURE TO DO THIS COULD RESULT IN DEATH, SERIOUS BODILY INJURY,
OR PROPERTY DAMAGE.

2

I. MOUNTING THE UNIT

1) The unit should be mounted as close to the point of use as possible.

Do not install the heater above a faucet or “point of use” because the siphoning effect may
drain the heater which can cause premature element burn out.

2) This unit must only be mounted in a vertical position with the water fittings located at the
bottom of the unit. Mounting other than in the vertical position WILL cause element burn
out and cause permanent damage to the water heater.

3) The cold water inlet is on the right hand side and the hot water outlet is on the left hand side.
Under NO circumstances can these be reversed.

4) Leave a minimum of 8” above the unit for easy replacement of the element.

5) The heater should be fixed to the wall using all four mounting holes of the backplate. Unit
weight is approximately 15 lbs. Use an appropriate fastener for this weight. For the unit to
be mounted against hollow walls, suggest using steel wall anchors, with the correct grip
range and #6-32 screw size minimum.

NOTE: The heater should be installed below the level of all hot water outlets serviced by this
heater.
NOTE: PRESSURE AND TEMPERATURE RELIEF VALVE
These units are not required by UL to have a Pressure and Temperature Relief
Valve (PTRV). You should check with local codes to find out if one is required in your
area. If local codes require the use of a temperature and pressure relief valve it
should be installed on the outlet hot water pipe before the outlet ball valve.

Figure 2

3

Requirements:

Output: 28 kW @ 240 volts
21 kW @ 208 volts

About 0.85-2.5 GPM at showering temperature.
Best used when operating one outlet at a time.

Showers and the whole house, cabin or condo

MODELS: EX280T2T

Eemax

Lavatory

Shower

Kitchen

Hot outlet

Cold inlet

MINIMUM - 8” CLEARANCE ABOVE UNIT

4

Figure 1A

MOUNTING
HOLES

To 3 Independent

circuit breakers

serial #

LUG

TERMINALS

AT RELAYS

ELECTRICAL

HOOK-UP
208/240 V

L1 L2
C/B #2

L1 L2
C/B #3

L1 L2
C/B #1

GROUND

LUGS