A.O. Smith ELJH-30 Bedienungsanleitung

Storage Water Heater

ELJH-30

ELJH-40

ELJH-50

ELJH-80

ELJH-100

About A.O. Smith

In 1936, A. O. Smith developed and patented a technology to glass-line water heaters. Over the years, A.

O. Smith has gained the respect and support of homeowners, contractors, architects and specifying

engineers in over 60 countries by providing innovative energy efficient products designed for years of

trouble-free service.

Today A. O. Smith Water Products Company, the largest water heater manufacturer in the world, is a

global leader in innovative technology and energy efficient solutions.

What’s in the box?

Contents

Specifications ....................................................................................3

Component Description .....................................................................4

Key Features .....................................................................................5

Glass Coated Element

Blue Diamond Glass Lining

Anode Protection

Safety Valve

Thermal Cut Out

Installation ..........................................................................................6

Mounting

Mounting procedures and precautions

Mounting guidelines

Plumbing connection

Water inlet and outlet connection

Power connection

Wiring diagram of water heater

Water filling

Directions of use ..............................................................................10

Temperature setting operation

Maintenance Instructions .................................................................10

Maintenance

Troubleshooting ..............................................................................12

Specifications

Type

ELJH-Horizontal Wall Mounted

Rated volume (L)

Power (W)

2000

Voltage/frequency (V/Hz)

220/50

Temperature range (°C)

35-75±5

Rated water pressure (MPa)

0.8

Minimum inlet water pressure

(MPa)

2.0

Maximum inlet water pressure

(MPa)

3.0

Inlet/outlet connection (inches)

Waterproof grade

IPX1

Weight (kg)

Overall dimensions (mm)

Ø360x605

Ø360x710

Ø360x830

Ø360x962

Ø463x860

A. O. Smith reserves the right to make product changes or improvements at any time without notice.

Component Description

Part Description

1. Temperature indicator

7. Multi-function safety valve

2. Heating element

8. Stopcock (not included with water heater)

3. Anode

9. Pilot light

4. Cold water inlet pipe with diffuser

10. Inlet

5. Hot water outlet pipe

11. Outlet

6. Thermostat

12. Thermal cut out

Key Features

Glass Coated Element

Scale and sediment build up on the surface of standard elements lead to premature

failure. An A. O. Smith glass coated element helps to prevent scale formation on the

element, extending the life of the element.

Blue Diamond Glass Lining

A. O. Smith water heaters come with special glass lined inner containers. This lining is

achieved through a specialized fusion process carried out at 870ºC. Inner tanks are

designed to pass the 100,000 cycle fatigue life test in accordance with relevant UL

(Underwriters’ Laboratories) Standards. This makes our tanks one of the best inner

containers, resistant to rust and scaling.

Anode Rod Protection

The tank has an anode rod system with a stainless core that is designed to protect the

tank from corrosive elements. The system uses a special cathodic action to fight the

corrosive elements, prolonging the life of the water heater.

Safety Valve

This water heater has a pressure safety valve. This valve is designed to automatically

relieve and discharge water in case the pressure or temperature exceeds the preset

limits.

Thermal Cut Out

The water heater employs a thermal cut out. In case any fault occurs and the water

temperature exceeds the highest preset temperature (93°C), the switch rapidly cuts off the

live and neutral line for user’s safety.

Installation

Mounting:

Mounting

This water heater should be installed at a location that is close to a power source, floor drain and water

utilization point. In the installation area, it should be ensured that the water leakage from the heater or

pipeline joints may not cause damage to the articles in adjacent regions or lower layers of the building.

When installing the water heater, be sure to mount the water inlet and outlet pipes at the bottom of the

heater.

Vertical installation of the water heater is strictly prohibited.

Mounting procedures and precautions

The installation surface must be capable of supporting at least three times the weight of the water heater

when filled with water. If the water heater is not installed on the weight bearing wall or is mounted on

hollow brick wall, corresponding protective measures must be provided.

This water heater must be installed with the fixing accessories provided. The heater must be hung until the

accessories are fixed firmly or else the heater may fall off, and serious injuries might be caused.

CAUTION:

•The heater should only be connected to a power source after a full installation which ensures secure

mounting, piping, wiring and filling of the tank with water.

•To prevent injuries from lifting heavy equipment, the water heater should be installed by at least 2

persons.

•The water heater must be lifted in an upright position. Do not tilt over a 45º angle. Disassembly and

assembly by end users are prohibited.

•The water heater must be installed by a qualified personnel

CAUTION: Please wait for 30 minutes before using the heater for the first time.

Mounting guidelines

Drill two holes at least 90 mm in depth using an electric impact drill with a Ø 10mm bit. The holes must be

level. Space between the two holes should be as shown in the table.

plastic expansion tube must be placed into the drilled

holes before the brackets are inserted.

It is necessary to use a special inner hexagon spanner to fasten the bolts into the expansion tubes, no other

tools are permitted. Ensure the screw is not excessively tightened. This may damage the expansion tubes.

Insert the square holes of the upper of supporting rack at the back of the water heater onto the brackets,

then press the water heater down firmly to ensure the holes are lodged against the brackets.

Model

L (mm)

ELJH-30

260

ELJH-40

260

ELJH-50

380

ELJH-60

380

ELJH-80

380

ELJH-100

380

CAUTION:

•The mounting accessories provided can only be used for solid walls, as shown in the drawing above.

Improper installation may cause the water heater to dislodge.

100mm depth

correct installation

incorrect installation

Plumbing connection

Do not alter the installation position or block the relief valve. Connect the safety valve provided with this

unit to the inlet of the water heater (inlet pipe has a blue cap). The arrow points to the direction of water

flow (to the heater). The storage heater must be permanently connected to the water mains and the use of a

hose set is prohibited. The safety valve must be connected to the discharge pipe, mounted downwards to a

floor drain in a frostless environment. As water may drip from the discharge pipe during operation of the

heater, a floor drain should be provided nearby. The pipes should not be blocked. The relief valve is to be

operated regularly to remove lime deposits and to verify that it is not blocked.

The hot water pipe is connected to the water outlet (outlet pipe has a red cap). If the water pressure of the

inlet pipe approaches or exceeds the relief limit (0.80 MPa) of the safety valve, the valve will relieve

pressure automatically. Refer to the following diagram for the pipe connection. Nylon hoses should be used

for the connection between the tapping pipe and the heater.

We recommend the use of a double check valve assembly for the installation of the water heaters. The

double check valve assembly is a safe and effective measure for preventing backflow and back-siphonage

of water from the water heaters through the inlet pipe.

Water inlet and outlet connection

CAUTION:

•Apply proper sealant to the pipe joints to prevent leakage. Do not over-tighten the safety valve to

avoid damage.

Power connection

This water heater must be permanently connected to the electrical supply through a double pole switch

having a contact separation of at least 3mm in all poles incorporated in the fixed wiring. Use an

independent high-quality socket that is reliably grounded. Its rated current should not be less than 16A.

Ensure reliable contact with the power source.

The maximum power of this water heater is 2000W, hence a single dedicated power supply circuit is

proposed. The core area of the electric supply wire should not be less than 2.5 mm². If the supply cord is

damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order

to avoid a hazard.

Wiring diagram

1. Thermostat setting knob

4. Power supply connection

2. Pilot light

5. Ground connection

3. Thermal cut out reset button

6. Heating element

Water filling

After all the pipes are connected, open the discharge valve of the water heater and then the feed valve.

Fill the water heater with water and exhaust the air till a uniform water stream flows out of the hot water

outlet. This indicates that the water heater has been filled up. Close the hot water discharge valve and

check all connections for any leakage. If leakage occurs, empty the water tank, repair the leaked

connection and then refill the heater with water. Do not close the feeding valve during the filling of water.

Live wire

Neutral wire

Earth wire

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