TERMET TERMAQ Series, TERMAQ AQUA-POWER ECO GH-19-02, TERMAQ ELECTRONIC ECO GE-19-02 Installation And Operation Manual

1450

INSTALLATION AND OPERATION MANUAL

Instantaneous gas water heater

DEAR CUSTOMER,

Congratulations on choosing the termet product.

You have purchased a modern, economical and environment-friendly

product that complies with high EU quality standards.

Please take time to get yourself familiarised with this manual, as full

understanding of the product's functions, as well as knowledge of

manufacturer's recommendations is imperative for its smooth,

economical and safe operation.

Please keep this manual handy throughout the whole operational

lifetime of the water heater.

We hope you will be satisfied with our product.

IO-752:2018/EN 05.12.2018

1

CONTENS

1. INTRODUCTION ....................................................................................................................................................... 2

1.1. IMPORTANT TIPS ............................................................................................................................................ 2

2. PRODUCT DESCRIPTION........................................................................................................................................ 3

2.1. Technical features ............................................................................................................................................. 3

2.2. Water heater construction and technical data ................................................................................................... 3

2.2.1. Main components of the water heater ...................................................................................................... 3

2.2.2. Technical data ........................................................................................................................................... 5

2.3 Protection equipment ........................................................................................................................................ 5

3. WATER HEATER INSTALLATION ............................................................................................................................ 5

3.1 Main installation regulations .............................................................................................................................. 6

3.1.1 Removing and installing the front cover ........................................................................................................ 6

3.1.2 Location ......................................................................................................................................................... 6

3.1.3 Ventilation ...................................................................................................................................................... 6

3.1.4 Flue gas offtake system ................................................................................................................................ 6

3.1.5 Gas system ................................................................................................................................................... 7

3.2 Preliminary check-up operations ....................................................................................................................... 7

3.3 Water heater mounting ...................................................................................................................................... 7

3.4 Connecting to the gas supply ............................................................................................................................ 7

3.5 Connecting to the water supply ......................................................................................................................... 7

3.6 Connecting to a flue system .............................................................................................................................. 8

4 WATER HEATER OPERATION ................................................................................................................................ 8

4.1 Preparing the water heater for the first start-up ................................................................................................ 8

4.2 Water heater starting-up ................................................................................................................................... 9

4.3 Water temperature and water flow regulation ................................................................................................... 9

4.4 Water heater switching off ............................................................................................................................... 10

5 ADAPTATION OF THE water HEATER TO COMBUST OTHER TYPES OF GAS ................................................ 10

5.1 Gas consumption values ................................................................................................................................. 10

6 KEEPING IN THE RIGHT TECHNICAL CONDITION ............................................................................................. 10

6.1 Heat exchanger cleaning (removing sediment and scale) .............................................................................. 10

6.2 Burner maintenance ........................................................................................................................................ 11

6.3 Water filter cleaning......................................................................................................................................... 11

6.4 Gas filter cleaning............................................................................................................................................ 11

6.5 Safety system checking .................................................................................................................................. 11

6.5.1 Checking the protections against flue gas outflow into the room ................................................................ 11

6.5.2 Checking the protection against heat exchanger overheating .................................................................... 11

7 DIAGNOSTICS ........................................................................................................................................................ 12

7.1 Igniting system diagnostics ............................................................................................................................. 12

7.2 Igniting system checking ................................................................................................................................. 12

7.3 Checking the coils of differentia pressure valve .............................................................................................. 12

8 DEFECTS - CAUSES AND METHODS OF REMOVING ........................................................................................ 13

IO-752:2018/EN 05.12.2018

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1. INTRODUCTION

This instruction manual describes instantaneous gas
water heaters, adapted for installations with one or more
tap (eg. shower, sink etc.).
All drawings, specifications and another information
included in this instruction are based on the up-to-date
data of the product, available at the moment of issuing
this instruction.
The manufacturer reserves the right to make changes
in gas water heater design, without indicating them in
the instruction, as far as the modifications do not have
influence on the operational and technical features of
the product.
Long-term operation of the product and its reliability
most depend on proper installation and use as well as
performing the maintenance in due time and in proper
way.

1.1. IMPORTANT TIPS

Read this before any installation works or use.

• Gas appliances, that are permitted for use and

signed with symbol are safe if they are being
used appropriately and complying with specific rules
of installation and use.

• This installation guide and user’s manual is an

integral part of the water heater unit and as such it
should be kept at hand, and be studied carefully
throughout, as it contains all the necessary
information and precautions that need to be
observed to ensure the safety of installation, usage
and maintenance of this unit. In case of transferring
the appliance to another user, this manual should be
also attached.

• The installation and regulation works must be

performed by an authorised company.

• A room that the unit will be installed in must provide:

- flue conducting, through a pipe connected to an
individual flue with a proper draught,

- efficient supply - exhaust ventilation – in
accordance with this instruction manual and the
local regulations.

Non-observance of this requirements may be
unsafe for a user and may also cause the product
damage (i.e. example water system freezing).

• The unit may be assembled and started up only after

all the other construction and installation works in its
designated room are finished. It is strictly forbidden
to assemble and use the unit in rooms where
construction or other installation works are still under
way.

• Gas and water systems should be equipped with

appropriate filters, which are not included with the
unit.

• The water heater can be operated only by adults.

• Do not perform any repairs or alterations to the water

heater on your own.

• It is strictly forbidden to make any modifications that

could reduce the clearance of air-intake holes
(covering, blanking off etc.) or uptake and flue ducts
in a room and in the appliance.

• Do not keep any containers with inflammable,

aggressive or strongly corrosive chemicals close to
the water heater.

• It is forbidden to keep or dry clothes or other

inflammable objects on or nearby the appliance and
flue ducts.

• The service and maintenance operations of the

water heater can be only performed by an authorised
company.

• Effects of not - observance the instructions included

in this document by gas engineers or users are
excluded from the warranty coverage.

• After exploitation of the boiler, disassembled product

transfer to a specialized unit for utilization.

The manufacturer will not be liable for any
damage or malfunction of the product caused
by faulty installation or use, as the results of
non-observance the manufacturer instructions
and any relevant, official regulations.

Before you start up the water heater,
concerning for your safety, make sure if:

1. Permanent air supply that is necessary for
gas combustion is provided,

2. The appliance has been connected to an
individual and efficient chimney duct,

3. The gravitational ventilation duct is not
choked.

If you smell a gas:

1. Do not use electric switches likely to
cause a spark.

2. Open the door and windows.

3. Shut down the main gas valve.

4. Contact the gas emergency service.

5. If the gas escapes from an untaught valve
of a gas cylinder, shut down the valve,
disconnect the cylinder and take it outside
the building.

6. If the gas escaping from a leaky valve on
the cylinder catches fire, throw a wet
blanket on the cylinder in order to
extinguish the fire, and then pour water on
it in order to cooling down the cylinder and
make possible to turn off the valve.

In a case of breakdown:

1. Turn off the gas supplying valve.

2. Turn off the water supply if there is a risk
of flooding.

3. If there is a risk of water heater freezing,
drain out the water from it.

If you smell fumes:

1. Switch off the heater by turning off the hot
water tap or shut down the gas valve of
water heater.

2. Open the door and windows.

3. After airing the room, switch on the heater
for a while and check if the gas smell
disappeared. If not, contact the fitter or the
chimney service in order to check the
exhaust system efficiency.

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2. PRODUCT DESCRIPTION

2.1. Technical features

• Electronic ignition with a ionisation flame control

• Lack of chimney draught protection and fumes

leak protection.

• Heat exchanger overheating protection.

• Proportional power regulation.

• Device adapted for water supply system from 20 to

1000 kPa (0,2 to 10,0 bar)

Gas instantaneous water heaters type GE-19-02 and
GH-19-02 are manufactured as B

11BS

installation type
version, what means that they are intended to be
connected to the individual flue chimney. Combustion
products are taking out of the room by means of natural
draught. The air for the combustion process is being
taken directly from the room where the water heaters
are installed. Water heaters are equipped with a
protection against draught loss in a flue pipe and
protection against fumes escape into a room.

The water heaters GE-19-02 and GH-19-02 are
equipped with the most recent technical solutions which
provide long-lasting, faultless and economic
performance and the comfort of use.

The fittings used in the water heaters ensure
proportional power regulation, which enables to get
constant temperature of outflowing water.

Activation (burner ignition) of the water heater takes
place with each opening of the tap. Shutdown takes
place after closing the tap.

One of the main advantages of the water heaters is little
water flow necessary to start up the appliance (about
3,2 l/min).

Each water heater is destined to combust only one type
of gas (for example 3B-G30) and the water heater must
be fed only with this type of gas.

The water heater’s type, the group and type of gas, as

well as the service line pressure which the water heater
was designed for, are marked on the packaging, in the
instruction manual and on the marking plate.

The water heater can be converted to another type of
gas only by an Authorized Service Center in accordance
with point 5.

2.2. Water heater construction and
technical data

2.2.1. Main components

of the water heater

Temperature limiter as protection against overheating
of the heat exchanger

Fig. 2.2.1.1 Main components of the water heater

1 Burner
2 Electrode set
3 Water-gas fittings
4 Heat exchanger
5 Draught breaker
6 Spark generator
7 Battery compartment
8 Temperature limiter - protection against flue gas

outflow into the room

6 7

8

5
4

2
1
3

7

IO-752:2018/EN 05.12.2018

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Fig. 2.2.1.2 Schematic diagram of the water heaters

1. Burner

2. Electrode set

2.1. Igniting electrode

2.2. Ionisation electrode

3. Water-gas fittings

3.1. Gas flow knob

3.2. Temperature selection knob

3.3. Gas filter

3.4. Water supply filter

3.5. Differential pressure valve

3.5.1. Coil I of the differential pressure valve

3.5.2. Coil II of the differential pressure valve

3.6. Regulating screw of the microswitch

3.7. Regulating screw of the little water flow

3.8. Microswitch

4. Heat exchanger

5. Spark generator

6. Battery compartment

7. Hydrogenerator

8. Temperature limiter - protection against flue gas
outflow into the room

9. Temperature limiter - protection against
the heat exchanger overheating

10. LED display

11. Cable assembly