EZ TANKLESS 202 Manuel utilisateur

ISO 9001-Certified Large Capacity Automatic Gas Water Heater

USER'S MANUAL

EZTANKLESS MODEL 202

This gas water heater is ISO9001 certified.

Thank you for purchasing our large capacity automatic gas water heater.

Please thoroughly read this Manual before installing and operating and

keep for future reference.

Contents

Special Advice ………………………………………………….2

Features & Benefits ………………………………………………….2

Specifications………………………………………………………….3

Parts Name……………………………………………………………..4

Installation Method…………………………………………………….5

Operation Method……………………………………………………..8

Cautions For Safety……………………………………………………9

Maintenance……………………………………………………………12

Accessories Table……………………………………………………..12

Trouble Shooting………………………………………………………13

Special Advice

The combustion of the gas will consume a large amount of air and produce

Carbon Monoxide while the heater is working. NOTICE: if humans or

animals breathe too much Carbon Monoxide, it will cause danger, injury, or

even death. Therefore, the users are requested to install and use this heater

strictly according to this manual to avoid Carbon Monoxide toxicosis. The

manufacturer or its authorized distributors will not bear responsibility for any

damages resulting from installation and operation not in accordance with

this manual. If the user has any concernes or questions, please do not

hesitate to ask.

Features & Benefits

1. Automatic operation

Simply turn on the hot water tap or shower, and hot water will arrive.

When the tap is turned off, the flame will automatically go out.

Independent control of water flow and gas flow makes it easy to

adjust the water temperature.

2. Innovative design

Sleek shape and convenient to install.

Advanced energy-saving combustion technology greatly promotes

burning efficiency.

Ignites at low water pressure (35 PSI)

3. Complete safety functions

Sensitive IC flame sensor will cut off the gas supply if the flame goes

out unexpectedly.

Insufficient water flow pressure protection.

Anti-freeze function.

In case of no-water supply, the gas valve will automatically turn off.

Specifications

Description Instant Gas Water Heater

Model

EZ202LP EZ202NG

Gas Type L.P.G Natural Gas

Rated Gas Pressure 2800Pa

0.406 PSI

11.24 WC inch.

2000Pa

0.29 PSI

8.03 WC inch.

Hot-water Out-point Multi-point Hot-water Outlet

Combustion product exhaust Flue Duct 110mm diameter pipe

(4.33 inches)

Ignition Water Controlled Automatic Ignition

Power 2 “D” cells batteries (#1)

Safety Devices Flame-out Protection

No-water cut-off Protection

Water Over Pressure Protection etc.

Suitable Water Pressure (35 ~ 125 PSI)

Connections

Gas Inlet G1/2 or G3/4 inch USA pipe

Cold-water

Inlet G1/2 inch USA pipe

Hot-water

Outlet G1/2 inch USA pipe

Appearance Dimensions (mm)

630x360x145 680x 400x 145

Parts Name

Installation

Before installation, contact the

qualified technicians at your

local gas dealer or gas

management department to do

the installation. Any random or

improper installation will affect

the safe use of the machine or

even endanger the users’ life.

If the water heater installation is

in a room with other ventilation

devices, it is strictly prohibited

to operate additional ventilation

equipment (like a stove hood or

ventilation fan) As this can

cause a back draft of the heater.

This is why we do not

recommend this type of heater

to be installed indoors of an

occupied building or residence.

Installation requirements



Do not install the water heater

in bedroom, basement,

bathroom, kitchen or rooms

with poor ventilation. The

room for installation shall be

well ventilated and above

6m2 in area (212 Cubic Feet).

A ventilation hole as well as

an exhaust hole must be

drilled in the wall for proper

ventilation purposes. The

exhaust flue shall be installed

above the water heater, and

the ventilation hole shall be at

a level lower than the water

heater. (Fig.3)

The flame-check window of

the water heater should be at eye level (about 1.55m-1.65m above

the floor. Fig.4), and always kept well away from inflammable liquids

and materials. (Fig. 5). No electric cables or equipment shall be

placed above the water heater. The heater shall be kept at least

400mm (16 inches) away from all electronics on sides and bottom.

Do not install the water heater where strong winds blow, or it can

cause flameout or incomplete combustion.

Installation Method

1. Installation

Drill holes in the wall according to Fig.6, Put an expansion bolt into the

upper hole and plastic gasket into the lower hole, mount the water heater

vertically on the upper bolt without inclination and tighten the lower holes

with expansion bolts.

2. Piping

L.P.G users are

recommended to use a

standard type regulator.

Gas Inlet

(1) After connecting the pipes,

check the connections with

soapsuds for gas leakage.

Water Inlet

It's better to use a braided

type flexible hose, or you may

use rigid pipe as a cold-water

connection. A water control

valve should be installed

before the water inlet (Fig.7).

(Note: There is a filter inside

the water inlet, do not remove

it while installing).

Hot Water Outlet

Remove the drain valve first

to avoid breaking the

anti-frost screw. If connecting

the hot water outlet directly to

the shower, you can use

tubing or rigid pipe. When

installing the control valve or

tap to the hot water outlet, or

installing the shower with

control tap, do not use pipes

made of materials

pressure-unendurable or

temperature-unendurable,

such as plastic or, aluminum

pipes.

3. Battery Installation

Do not confuse the positive

and negative ends of the

batteries (See Fig. 8).

4. Flue Duct Installation

As this water heater is flue duct

type, the waste air exhaust

pipe must be installed.

Basic requirements:

Flue duct inner diameter:

φ110mm.

The main body of the flue

duct shall be made of

rustproof material.

The horizontal part of the flue duct shall have a 1:100 down

inclination, and there shall be aφ10mm hole at the bottom of the

vertical part of the duct outside the room, for the purpose of draining

water droplets and condensation.

The outlet of the flue duct shall have a windproof cap, which should

not be clogged.

Installation method:

Drill proper holes on the wall according to the right dimensions of the

heater (See Fig. 9).

Fig. 9

Operation Method

1. Preparation before Ignition

Make sure the type of gas used complies with that stipulated on the

label. Natural gas or Propane

(LPG)

Turn on the gas inlet valve.

Turn on the water valve (make

sure there is water flowing out,

the green indicator light will turn

on with a "clicking" ignition sound.

The burner is ignited and hot

water flows out instantly. If the

water pressure is low, or the

power is not connected, the

water heater will not operate

normally.

After initial installation or a

change of gas cylinder, air may

remain in the gas pipe. It may

require several ignition attempts

to bleed the air out of the pipe

before the heater can be ignited.

If a problem comes up after

normal operation, turn off the

water immediately. To prevent

the possibility of an explosion,

allow 10-20 seconds for gasses

to clear before attempting to

re-ignite the heater.

Test water temperature with your

hand before use to avoid

scalding. (Fig.10)

Turn off the gas valve after each

use. (Fig.11)

In cold winter, the water heater

must be drained after each use

as follows:

1) Turn off the water control valve.

2) Turn the water flow control knob to

"low" position.

3) Remove the drain cock. (The drain cock is a bolt connected to the valve.

Take it off by turning it counter-clockwise to drain the water completely).

Cautions For Safety

■Gas Leak Prevention

It's best to install a gas leakage-warning and carbon monoxide

detection device.

Do not forget to turn off the gas valve after use (Fig. 11)

Always check all the gas pipe connections with soapsuds to see

whether it has gas leakage. In case of gas leakage, shut off the gas

supply and open the windows immediately. Under such condition,

ignition, switching on/off the electric power supply are strictly

prohibited to avoid and explosion and fire. (Fig.12)

Never mix gas types, use the correct fuel, natural gas or Propane

(LPG)

Check the gas line regularly as it may age and crack after long

periods of use. Replace if cracked tubes are found. Under normal

operation, the gas tube should be replaced yearly.

For L.P.G user, if the flame of the heater is not stable, it may be

caused by the breakdown of the pressure reduction valve connected

to the outlet of the gas tank. (regulator) In that case, stop using the

heater immediately and contact a service technician.

■Fire Accident Prevention

Make sure that the flame of the heater has extinguished before

leaving the room or going to sleep.

Turn off the main gas valve and the water inlet valve in case of a

water shortage.

Do not place inflammables like towels or clothing onto the heater or

exhaust. (Fig.13)

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