HomeMy WebLinkAboutINSTALLATION GUIDE - OWNERS MANUAL:LmAX "THREE MODULE, SINGLE PHASE" r
WATER HEATERS
ELECTRIC INSTANTANEOUS WATER HEATER
INSTALLATION GUIDE AND OWNERS MANUAL
MODELS COVERED:- EX280 T213 - 240/208 V ft% D
By
SPECIAL V 014ucie Coun fy
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READ THE GENERAL SAFETY SECTION BEGINNING ON THE INSIDE COVER
AND THEN THIS ENTIRE MANUAL BEFORE INSTALLING OR OPERATING THIS
WATER HEATER. IF YOU DONT 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.
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. EX INSTALLATION DATE
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. "Parallel Thermostatic' models indicated by the letters
"T2' 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 compression rings and nuts suitable for direct coupling to standard 112'
(5/8" outside diameter) copper or plastic piping. There is no need for additional screwed fittings
and under no circumstances use a blow torch on pipe while pipe is connected to the heater
(serious damage to the electronic flow switch will result).
Also, ensure that the pipes are clear of installation debris befbre fitting the heater.
THIS HEATER MUST HAVE THREE DEDICATED INDEPENDENT
AOVor 208V CIRCUITS, USING CORRECTLY RATED WIRES AND
CIRCUIT BREAKERS.
V1IAKNINU
FAILURE TO GROUND THE SYSTEM MAY RESULT IN DEATH OR SERIOUS INJURY.
VVAKNING
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.
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.
Z
t
MINIMUM - 8° CLEARANCE ABOVE UNIT
g
Outlet isolating valve -
bail valve Qeave open
just enough to obtain
adequate flow of hot water)
serial # O
urzuuurz
l
To 3 Indepe!Went
Inlet isolating valve tarcri Brea rs
ball valve. (Always leave fully
open when unit is in service.)
Fi ure 1
3
I. MOUNTING THE UNIT
1) The unit should be mounted as close to the point of use as possible- For example, directly
beneath the sink is ideal.
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 bum 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 bum
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 screws in the four mounting holes at each comer
of the backplate.
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 rants areZ.4 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
Showers and the whole house, cabin or condo
Lavatory Shower MODELS: EX280T2P
U,
Kitchen Requirements:
IN0003 Cold water inlet one
Output 28 kW @ 240 volts
21 KW @ 208 volts
About 0.85-2.5 GPM at showering temperature.
'Cold pier Best used when operating one outlet at a time.
0
II. PLUMBING HOOK-UP
i) Th& unit is supplied with compression fittings (Figure 3), USE THESE. DO NOT USE
TAPERED THREADED PIPE FITTINGS AND DO NOT SOLDER TO THE INLET OR
OUTLET. DO'NOT USE ANY PIPE DOPE OR TEFLON TAPE WITH THESE
COMPRESSION FITTINGS.
2) Take care to ensure that the pipes are correctly aligned with the inlet and outlet bosses
in order to avoid excessive stress on the heater body molding.
NOTE: When soldering pipe joints remove heater from the wall. Serious damage can occur
if any soldering is done while pipes are connected to the heater.
Run water through the supply pipe to remove all debris from the pipe before connecting
the heater. Failure to do so could cause -damage to the flow switch.
3) Install isolating valves (full flow ball .Valve type) on both inlet and outlet pipes. This allows cant
to be isolated for maintenance purposes. (Fig. 1)
4) When all plumbing is complete. fully check the system for water teaks at all the plumbing
connections. If a leak is present take corrective action. If the leak is at a compression fitting, slowly
tighten the compression nut until it stops. Fully open both inlet and outlet BALL VALVES.
!Run. all the hot water outlets fed by this heater one at a time, for a minute or two, until the water
flow is continuous, free from 'gulping' and from all visible air pockets.
HOT OI
COMPR
FITTII
-DO NO7
T
NOTE:
ALL MOUNTING AND PLUMBING MUST BE COMPLETE BEFORE YOU
PROCEED WITH ELECTRICAL HOOK-UP.
TEST THE INSTALLATION FOR LEAKS BEFORE CONNECTING THE
ELECTRICAL SUPPLY.
T
ION
LDER
5
III. ELECTRICAL HOOK-UP
WARNING
BEFORE BEGINNING ANY WORK ON THE ELECTRICAL INSTALLATION,
BE SURE THE SWITCH AT MAIN BREAKER PANEL IS "OFF° TO AVOID
ANY DANGER OF ELECTRICAL SHOCK.
"Three Module, Single Phase' heaters are manufactured to the following specifications:
Fi ure 4
3X
` Units rated of 240 V can operate at 220 V or 208V with reduced output.
The output will vary in accordance with the following ratios:
VOHS
208 volts
220 volts
1 240 volts
output ratio
.75
.84
1.0
This unit must have its own independent circuits, using 3 SETS of UL listed 2 conductor and
ground core copper wire cable of the appropriate size protected by 3 separate and independent
correctly rated Double Pole breakers. (208, 220, 240 V, see Figures 4 and 5). Wire entry into
the unit must be made through the hole provided in the flange on the bac kplate.
The °live' wires should be connected to the slots in the terminal block marked L1 and L2. The
ground lead must be connected to the slot marked GND. GROUND MUST BE BROUGHT TO
THE'GROUND° AT THE CIRCUIT BREAKER PANEL
Figure 5
13 Separate and independent
correctly rated Double pole
breakers 240/208 Volts €
DANGER
FAILURE TO GROUND THE SYSTEM MAY RESULT IN DEATH OR SERIOUS INJURY-
2
IV COMMISSIONING YOUR HEATER
IMPORTANT
BEFORE SWITCHING °ON° THE POWER AT THE MAIN CIRCUIT BREAKER PANEL
MAKE SURE THAT THE HOT WATER CIRCUIT IS FREE OF AIR POCKETS OR ELSE
PREMATURE FAILURE OF THE ELEMENT WILL OCCUR. TO DO THIS OPEN ALL HOT
WATER OUTLETS ONE AT A TIME FORA MINUTE OR TWO UNTIL THE WATER FLOW
IS CONTINUOUS AND FREE FROM "GULPING" AND FREE FROM VISIBLE.AIR POCKETS.
1) Open fully both inlet and outlet valves at the heater.
2) Open any hot water outlet in the system. If the outlet is a "single lever" mixer type turn to the
hottest position. Run for one minute to dear all the air from the system.
3) Slowly dose OUTLET ball valve until the water flow from the faucets starts to reduce.
NOTE: This process has two effects. One, any air in the system will be purged out Two, the
heater units will be pressurized at the supply pressure. This will prevent the elements burning
when energ¢ed.(Note: Keep water flowing while carrying out the procedures outlined below.)
GO TO APPROPRIATE SECTION FOR YOUR MODEL
NOTE: For the following sections the first unit is the right hand heating module and the second
' unit is the middle, far left hand is the third heating module.
"T2P" MODELS
a) Switch on the power to the first unit The power indicator light should illuminate.
b)'Switch on the power to the second unit, again the power indicator lights should illuminate.
Note: This light should pulse On and Off at first and after about 20- 30 seconds
it should stay fully on.
c) Switch on the power to the third unit, again the power indicator lights should illuminate.
Note: This light should pulse On and Off at first and after about 20- 30 seconds
it should stay fully on.
d) Use the OUTLET ball valve to gradually reduce the water flow until the power indicator fight
on the third unit begins to pulsate. The water temperature should now be approximately
I140 F.
e) The thermostat is now set and the water temperature will always be the same when the
indicator light is pulsing.
f) Increasing water flow (above the flow rate at which the thermostatic control is no longer
effective) will reduce the water temperature.
rA
For'T2P• Models
ff a lower temperature is required, turn the temperature adjustment screw(s) counter -clockwise
about 8 of a turn (See Figure 1). Wait 15-20 seconds and check the temperature at the fixture.
Repeat this process until the desired temperature has been achieved. (For T2P models try to adjust
troth temperature adjustment screws by about the same amount so that the fights pulse at the same
rate.)! ff you have reduced the temperature caisiderably from the 140 F setting, you could now
open up the outlet ball valve slightly to achieve a Higher rate of flow.
When the indicator light is on continuously, the unit is emitting full power. When it is pulsing, the
unit is modulating the power to achieve the temperature set by means of the temperature
adjustment screw.
ALL HEATERS
.In order to obtain good control at'single [ever' mixer type faucets (single spout) the cold water
supply to the faucet should be restricted to give approximately the same flow rate of cold water
to the faucet as the hot water caning from your Eemax heater. The simplest method of doing
this is by partially dosing the cold water valve under the sink
MAXIMUM TEMPERATURE RISE CHART (°F )
9