31
a plug shall be connected to a socket equipped with an earthing contact. The material necessary for connecting the
heater to the electrical network is not included in the delivery.
Prior to connecting the heater to the electrical network it is necessary to fill it with water. Switching
on the heating without water inside can cause a temperature fuse short-circuit with subsequent
heater inactivation.
The heater electric schemes can be found on Page 3:
-
Fig. No. 1 - type EOV x.1, ELOV x.1, OVK x.1 and LOVK x.1
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Fig. No. 2 - type EOV x.2
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Fig. No. 3 - type OVK 120, OVK 150, LOVK 120, LOVK 150, EOV 200, OVK 200, ELOV 200, LOVK 200
Explanatory notes on the schemes:
1. Terminal board; 2. Thermal fuse; 3. Thermostat; 4. Heating signalling; 5. Heating element; 6. Anode rod
7. Low tariff contactor; 8. Fuse; R. 560 Ohm resistor
8. MOUNTING THE TEMPERATURE INDICATOR
The temperature indicator serves to indicate the approximate current water temperature in the heater boiler on the
installation site. The water temperature is indicated by a pointer in the following manner:
l.
ll.
lll.
- The pointer position corresponds to a water
temperature of approximately 30 °C.
- The pointer position corresponds to a water
temperature of approximately 50 °C.
- The pointer position corresponds to a water
temperature of approximately 80 °C.
7. HEATER ELECTRIC SCHEME
With the help of a sharp tool prepare an aperture in the polyurethane isolation up to the boiler tin. Clean the boiler surface
completely from any insulation at this point in order to guarantee good heat transmission to the sensor indicator. Then
push the indicator into the aperture prepared in the heater casing of the EOV and OVK type modification or into the
aperture in the casing lid of ELOV and LOVK type modifications so that the springy nibs drop in behind the assembly hole
perimeter rim.
Prior to the first commissioning of the heater or after extended operation it is necessary to check:
that the heater is filled with water, by the hot water valve opening at one of the supply
points. If water flows out, the heater is full.
the safety valve functionality according to the safety valve Operation Manual.
-
-
Switching on the water heating is signalled by a glim lamp. If, during the water heating period any water drip through the
safety valve exit tube occurs, this is a natural phenomenon caused by water volume expansion due to heating.
Heater water filling procedure:
open the stop valve (Position 6) on the cold water feed pipe to the heater.
open the hot water valve (Positions 1, 2) at one of the points of supply (e.g. on the wash-basin mixing plumbing
fixtures) and open it until water flow from the tap drain-pipe, signalling that the heater boiler has just filled.
-shut the hot water valve, whereas the feed pipe shut-valve should remain open permanently.
-check the safety valve function (Position 4) according to the safety valve Operation Manual.
-Switch on the electricity and use the thermostat control knob to set the maximum water temperature desired.
1)
2)
3)
4)
5)
10. OPTIMAL OPERATION SETTING
In order to optimise operation the heater is equipped with a thermostat control knob, with which the required water
temperature can be set. Presetting the water temperature can be done by turning the thermostat control knob to the
symbol, or between the symbols, of the corresponding water temperature with respect to the signal light.
The water outlet can exceed a temperature of 65°C, which can cause scalding. The water temperature should be checked
prior to taking a shower or a bath.
9. HEATER COMMISSIONING
English
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