Bedienungsanleitung Thermex ER serie (Seite 19 von 84) (Englisch, Italienisch, Spanisch, Polnisch)

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waterproof items exposed to water under the EWH. When placing the EWH in unprotected premises,

it is necessary to install a protective tray (not included in the EWH supply package) under the EWH

equipped with drainage into the sewage system.In case EWH is installed in places that are difficult to

access with a view to perform technical and warranty maintenance (mezzanines, alcoves, ceiling

void, etc.), the EWH shall be installed and dismantled by the customer independently or at his/her

own expense.

Connection to the water supply system

It is necessary to supply cold water to the EWH using a pre-treatment filter with a

purification degree of at least 200μm.

Install the relief valve (16) shown in Fig. 1 at the cold water inlet (20) – the pipe with a blue ring, for 3.5-

4 turns and ensure the connection tightness with any sealing material (flax, thread-fill tape, etc.).

When the water heater is operating, water can leak from the relief valve outlet pipe to relieve

excessive pressure, which occurs for the purpose of ensuring the water heater safety. The discharge

pipe shall remain open to the atmosphere and be directed downward constantly. It is advisable to

attach a rubber or silicone tube of the appropriate diameter to the drainage hole with a view to drain

water. It is necessary to drain a small amount of water regularly (at least once a month) through the

relief valve discharge pipe into the sewage system to remove calcareous sediments and to check

valve efficiency.

The handle (17) is designed to open the valve (18). Make sure that during the operation of the water

heater this handle is in the position preventing water from being drained from the tank.

The connection to the plumbing system shall be made in accordance with (Fig.1) using copper/plastic

pipes or special flexible plumbing designed for a temperature of at least 100°C at the maximum

operation pressure. It shall be forbidden to use flexible connectors used in the past. Plumbing and

locking accessories shall be in line with the parameters of the water supply network and have the

necessary quality certificates. During installation, do not use excessive force to avoid damage to the

pipe threads, as well as the glass and porcelain finish of the inner tank.

CAUTION! It shall be forbidden to use the EWH without a relief valve or use a valve

made by other manufacturers.

After connecting the EWH, make sure that the cold water shutoff valve in the EWH (23) is open and

the hot water shutoff valve (24) is closed. Open the cold water inlet faucet in the EWH (21), the hot

water outlet faucet from the EWH (22) and the hot water faucet on the mixer to allow air to flow out of

the EWH. When the EWH has been filled in full, water will flow from the mixer faucet in the form of a

continuous stream. Close the hot water faucet on the mixer, check the flange for leaks and, if

necessary, tighten the bolts.

When connecting the EWH in places not equipped with running water, it is acceptable to supply water

to the EWH from the auxiliary reservoir using a pump station, or from a reservoir placed at a height of

not less than 5 meters from the top of the EWH.

Connection to the power supply network

Before switching on the heater, make sure that its parameters are in line with the technical character-

istics of the water heater.

CAUTION! Before switching on the power supply, make sure that the EWH is filled with

water!

The water heater shall be grounded to ensure its safe operation.

The EWH is equipped with a regular power cord with or without a europlug and an residual current

device (optional). The electrical socket shall have a grounding terminal with a ground wire supplied to

it and be located in a place protected from moisture or meet the requirements not lower than IPX4.

It is important to constantly monitor the EWH after the initial powering. In case of any parameter

mismatch (heating, temperature, indication, thermostat failure), contact the maintenance depart-

ment.

Maintenance

Periodic maintenance and timely replacement of the magnesium anode are indispensable conditions

for the long-term operation of the EWH. Failure to comply with these requirements is the basis for

withdrawing the EWH from warranty service. Maintenance and replacement of the magnesium

anode are not included in the manufacturer's and the seller's warranty liabilities.

During maintenance, the check is performed with respect to the condition of the magnesium anode

and the presence of scale on the THE. Simultaneously, the sediment is removed, which may

accumulate at the bottom of the EWH.

The magnesium anode shall be replaced at least once a year. If water contains a large number of

chemical impurities, the magnesium anode shall be replaced every six months. The formation of

scale on the heating element may lead to its failure, which is not a warranty case, and its replacement

is not included in the manufacturer's and the seller's warranty liabilities.

If there is some scale on the heating element, it can be removed with the use of descaling agents or

mechanically. When removing sediment from the EWH, do not apply excessive force and use

abrasive cleaners to avoid damaging the protective coating of the inner tank.

The first maintenance procedure is particularly important, because the intensity of the formation of

scale and sediment and the consumption of magnesium anode serve as the grounds for determining

the timing of subsequent maintenance, which in turn provides an opportunity to extend the EWH life

cycle. If the above requirements are not fulfilled, the EWH life cycle is shortened, the probability of

EWH failure increases, and the warranty liabilities are terminated.

To carry out maintenance and replace the magnesium anode, one shall perform the following

steps:

Power off the EWH;

Allow hot water to cool down or use it through a mixer;

Block the flow of cold water into the EWH;

Unscrew the relief valve or open the drain valve;

Put the rubber hose on the cold water inlet pipe or on the drain valve by directing its second end into

the sewage system;

Open the hot water faucet on the mixer;

Drain the water from the EWH through the cold water inlet or drain valve;

Remove the protective cover, disconnect the wires, unscrew and remove the removable flange

from the casing;

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ENEN

Thermex ER serie Seite 19

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