EemaX EMT1 Supplément

Electric Mini Tank Water Heaters

EMT1 - EMT2.5 - EMT4 - EMT6

Installation and Operating Instruction Manual

Table of Contents

Important Safety Instructions 2

Technical Data 3-4

General Information 5

Technical Description 6

Installation Instructions 6-10

Plumbing Connections 7

Temperature & Pressure Relief Valve 7-8

Filling The Water Heater 9

Electrical Connections 10

Instructions For Use 11

Maintenance Instructions 12-14

Trouble Shooting 15

Schematic Disassembly & Parts List 16

Warranty 17-18

Page 1

IMPORTANT SAFETY INSTRUCTIONS

WARNING: When using electrical appliances, 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 properly grounded outlet.

See “GROUNDING INSTRUCTIONS” found on page 10.

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 use an extension cord set with this water heater. If no receptacle is

available adjacent to the water heater, contact a qualied electrician to have

one properly installed.

6. As with any appliance, close supervision is necessary when used by children.

7. Do not operate this water heater if it has a damaged cord or plug, if it is not

working properly, or if it has been damaged or dropped.

8. This water heater should be serviced only by qualied service personnel.

Contact nearest authorized service facility for examination, repair, or adjustment.

SAVE THESE INSTRUCTIONS

The manufacturer and/or distributor is not responsible for damages caused by

improper installation, or by non observance of the instructions in this manual.

A QUALIFIED, LICENSED TECHNICIAN MUST ALWAYS INSTALL THE WATER HEATER

AND CONDUCT ALL SUBSEQUENT SERVICE WORK AND/OR MAINTENANCE.

IMPORTANT!!!

NEVER TURN THE WATER HEATER POWER ON UNTIL THE TANK IS COMPLETELY FULL

AND WATER IS FLOWING OUT OF THE HOT WATER FAUCET.

Page 2

Technical Data

MODEL EMT1 EMT2.5 EMT4 EMT6

Capacity gallons 1.3 2.5 4.0 6.0

Voltage Vac 110-120 110-120 110-120 110-120

Power at 120 Vac Watts 1440 1440 1440 1440

Max. Water Pressure psi 150 150 150 150

Weight (empty) lbs. 12.5 20 24 26

Amperage Amps 12 12 12 12

Phases 1 1 1 1

Temperature and

Pressure Relief Valve

Water inlet

Water outlet

water outlet water inlet

Assembly Figure

Water Flow Figure

Page 3

Model EMT1 EMT2.5 EMT4 EMT6

A (inch) 12 1/2” 14 1/2” 19 1/4” 18”

B (inch) 11” 11 3/4” 11 3/4” 15 3/4”

C (inch) 10” 10 3/8” 10 3/8” 15 1/2”

Dimensions

Switch

Heating element

(

1

Switch

Thermostat

Indicate Light

Heating Element

Power Plug

Switch

Overheat Limiter

Wire

Support

Schematic Construction

Wiring Diagram

Page 4

% &

GENERAL INFORMATION

The Eemax Mini Tank water heaters can be used in most under the coun-

ter, point of use applications. EMT models are designed to supply hot

water for all hand wash and kitchen sinks in a residential, commercial or

industrial environment.

EMT models can replace traditional central hot water heaters thereby

conserving water and reducing energy waste. EMT models can also be

plumbed in series with the central water heater and act as a booster.

The Eemax Mini tank water heaters are lightweight and compact and

manufactured for easy installation. EMT models are designed to be

mounted on the wall.

EMT models are designed to operate at 150 psi maximum water pres-

sure. Install a pressure reducing valve if your water pressure is greater

than 150 psi.

CAUTION!: The manufacturer cannot be responsible for the damage

caused by improper installation or by failure to follow instructions in this

manual. Comply with the Installation Instructions before connecting to

electrical outlet.

CAUTION!: The thermostat has been pre-set at the factory between

41C (105F) and 45C (113F).

CAUTION!: Hydrogen gas can be produced in a hot water system

served by this heater that has not been used for a long period of time

(generally 2 weeks or more). Hydrogen gas is extremely ammable. To

reduce the risk of injury under these conditions, it is recommended that

the hot water faucet be opened for several minutes at the nearest and

most distant sink being served by this water heater before using any

electrical appliance connected to the hot water system i.e. Dishwasher.

If hydrogen gas is present, there will probably be an unusual sound such

as air escaping through the faucet as the water begins to ow. There

should be no smoking or open ame near the faucet at this time.

WARNING: Installer should review the contents of this manual with the

owner upon completion of the installation, and the manual should remain

with the owner and placed in a location close to the water heater.

Page 5

TECHNICAL DESCRIPTION

There are four Eemax Mini tank models, a 1.3 gallon, a 2.5 gallon, a 4

gallon and a 6 gallon model. The pressure vessel (water tank) is welded,

glass lined steel and is equipped with an anode rod.

The water heater is equipped with a thermostat and a high limit

temperature switch. A temperature/pressure relief valve is supplied with

the unit.

INSTALLATION INSTRUCTIONS

EMT1 - EMT2.5 - EMT4 - EMT6

The installation must be completed by a licensed professional. All state

and local codes must be adhered to. The manufacturer will not be liable

for any damages because of failure to comply with these installation

instructions or because of improper installation performed by an

unqualied installer.

CHOOSE A LOCATION that allows ease of access for maintenance or

servicing, ideally installed at least 8” to 9” from the ceiling (inside top of

cabinet) or any adjacent walls.

WALL MOUNTING

Fasten the supplied mounting bracket to the wall. Use screws that are

suitable for the wall material and the weight of the water heater lled to

capacity (EMT1 = 24 lbs. - EMT2.5 = 41 lbs. - EMT4 = 57 lbs. - EMT6 =

76 lbs.). Hang the water heater on the bracket and pull downwards on

the water heater to insure that both “ngers” of the bracket are seated in

the mounting slots. Conrm your water piping orientation (hot and cold)

before wall mounting. ONLY INSTALL IN VERTICAL POSITION.

Heater can sit on the oor. Conrm water piping orientation before

nalizing on oor. ONLY INSTALL IN VERTICAL POSITION!

EMT models can be installed under the sink.

Page 6

PLUMBING CONNECTIONS

Connect the cold water inlet pipe to the inlet nipple (marked with a blue

ring) and the hot water outlet pipe to the outlet nipple (marked with a red

ring).

IMPORTANT: If Water pipes are copper or bronze, use dielectric

connections to prevent corrosion. Failure to provide dielectric insulation

may result in premature tank or nipple failure and may void your

warranty. Insure that the water heater is installed in a level position.

Install a shut off valve on the cold water side of the water heater. The

valve is for servicing and the valve should be in the open position when

the water heater is in operation. In order to protect the water heater

from heat damage due to soldering, solder a piece of tubing to a threaded

UNION tting before screwing the UNION to the tank. DO NOT APPLY

HEAT DIRECTLY TO INLET OR OUTLET CONNECTIONS.

TEMPERATURE AND PRESSURE RELIEF VALVE:

CAUTION!: Install the Temperature/Pressure Relief Valve

supplied with the water heater!

Install a discharge pipe from the temperature/pressure relief

valve terminating at a sink or drain. DO NOT CAP OR PLUG THE

END OF THE DISCHARGE PIPE. THE DISCHARGE PIPE MUST BE

UNOBSTRUCTED AND FULL SIZED.

The T/P valve is certied by a nationally recognized test lab that

maintains periodic inspections of the listed equipment and meets the

requirements for relief valves and automatic shut off devices for hot

water supply systems ANSI 121.22-1979.

The T/P valve is marked with a maximum pressure, which does not

exceed the maximum working pressure of the water heater (150 PSI).

Install the T/P valve into the threaded opening at the top of the

water heater and orient the discharge tubing so that any dis-

charge from the valve will exit within 6 inches above, or at any

distance below the structural oor, and cannot contact any live

electrical part.

Page 7

T/P Valve Discharge pipe:

1. Must NOT be smaller in diameter than the outlet

diameter of the valve, or have any reducing couplings.

2. Must NOT be plugged or blocked.

3. Must be made of suitable material for hot water.

4. Must not be over 15’ in length.

5. Must not have more than two elbows.

6. Must terminate at an adequate drain.

7. Must not have a shut off valve between relief valve and

tank or relief valve and termination of discharge.

CLOSED SYSTEM THERMAL EXPANSION: Periodic discharge of the

T/P relief valve or failure of the element gasket may be due to

thermal expansion in a closed water supply system. The

water utility supply meter may contain a check valve, backow

preventer or water pressure reducing valve which will create a

closed water system. During the heating cycle of the water

heater, the heated water expands causing pressure inside the

water heater to increase. The T/P relief valve may discharge hot

water under these conditions which results in a loss of energy

and a build up of lime on the relief valve seat.

To prevent this from happening, there are two recommendations:

1. Install a diaphragm-type domestic hot water expansion

tank (suitable for potable water) on the cold water

supply line. The expansion tank must have a minimum

capacity of 1.5 U.S. gallons for every 50 gallons of

stored water.

2. Install a 125 PSI pressure relief valve in the cold

water supply line. Make sure the discharge of this valve

is directed to an open drain and protected from

freezing. Contact your local water utility or plumbing

inspector for information on how to control this

situation. Never plug the outlet of the relief valve.

Page 8

FILLING THE WATER HEATER

CAUTION!: Before plugging the water heater electric cord into an

outlet, be sure that the system is completely charged with water

and ALL AIR IS REMOVED.

Before connecting the power, ll the tank and system with water and

check for leaks. To be sure that all air is out of the water system, open

the hot water faucets on your xtures until constant water ows from

them. Otherwise any air remaining in the tank will cause the water

heater element to self destruct.

Filling the water heater:

1. Open the hot water faucet.

2. Open the cold water supply valve.

3. When continuous water ows out of the faucet, the tank is lled.

4. Close the hot water faucet.

5. Check entire system for leaks.

USING THE SUPPLIED AERATOR (EMT1 model only)

Model EMT1 is supplied with a .5 GPM faucet mounted aerator. It is

highly recommended that the aerator be used together with model EMT1.

The purpose of the aerator is to restrict the amount of water ow exit-

ing the EMT1 which allows the water heater to produce hot water for a

longer duration. If the aerator is not used the 1.3 gallon capacity of the

EMT1 will be depleted quickly.

Page 9

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