Bedienungsanleitung Cointra Thermex IF (Seite 7 von 12) (Englisch)

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After connection, open the valve of cold water supply to the EWH and the hot water tap

on the mixer to allow air to escape from the water heater. When the EWH is finally filled, cold

water will continuously run from the mixer tap.

When the EWH is connected in places, where there is no water supply system, water can

be supplied to the EWH from an auxiliary tank located at least at 5 meters from the top of the

EWH, or by using a pumping plant.

Note: to facilitate maintenance of the EWH during operation it is recommended to install

a drain valve as shown in Fig. 1 (for models that are not equipped with a drain valve (beyond the

scope of supply)).

If pressure in a water supply system exceeds 0.6 MPa, it is necessary to install at the inlet

in front of the EWH a reducing valve (beyond the scope of supply) to reduce water pressure to

its normal value.

6.3. CONNECTION TO A POWER SUPPLY NETWORK

WARNING! Before turning on power supply, make sure that the EWH is filled with

water. The EWH is equipped with a standard power cord with a plug and PCD (optionally). An

outlet should have an earth terminal and be located in a place, protected against moisture.

The outlet and its leads should be designed for nominal power of 2000W, at the least.

Put a plug into the outlet (if the EWH is optionally equipped with PCD, press a button on PCD).

7. OPERATION AND MAINTENANCE

7.1. Models with mechanical control (Fig. 3)

The models with mechanical control on the EWH control panel have power selection

keys (I and II) with built-in indicating lamps. Actuated key I corresponds to power of 1.3 kW,

actuated both keys correspond to power of 2 kW. You may select one heating power or the other

on the basis of your requirements for hot water or depending on the season. When the EWH is in

operation, the Consumer may regulate the heating temperature with the regulator on the control

panel. Turning the regulator counter-clockwise until it stops disconnects the EWH from the

network, while turning the regulator clockwise gradually increases the temperature up to +75°С.

7.2. Models with electronic control by version 1 (Fig. 5)

In the models equipped with electronic panel by version 1 with a digital display, the

water heater can be turned on or off with the left-hand button on the control panel, "ON/OFF," in

which case the display shows the preset heating temperature. In 2.5 seconds thereafter the

display shows the current temperature of the water in the EWH. The heating power can be

selected with the middle button "Power selector" on the control panel. The 2 kW mode is

accompanied by indication of the pilot lamp L2, and the 1.3 kW mode is accompanied by

indication of the pilot lamp L3. When the EWH is in operation, the Consumer can regulate the

heating temperature with three soft keys, while the modes can be controlled by information on

the display and indication of three pilot lamps. To select the heating temperature, you have to

press several times the right-hand button "Temp. Selector" on the control panel. Discreteness of

temperature changes - 5°С.

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