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effect of water. When installing the electric water heater in unprotected facilities it is required to install
under it a protective tray (not included in a supply set) with canalization draining.
EN
Shall the heater be installed in places that are difficult to approach to make maintenance operations
and warranty services (ceiling shelves, niches, ceiling spaces) assembly and dismantling works are
made by a consumer himself or at his expense.
Connection to water supply
It is necessary to pump cold water in EWH using prime water filter with the degree of
purification not less than 200 microns.
Install the safety valve (17) on cold water input (21) - the pipe nipple with the blue ring, on 3,5 – 4 turns,
having provided tightness of connection with any sealing material (flax, PTFE tape, etc.).
The safety valve carries out functions of the non-return stop valve, interfering water backflow from
water heater to water supply system in the cases when the pressure decreases in the last one, and in
the cases when the pressure increases in a tank at strong water heating, and also carries out the
function of the protective valve, dumping excessive pressure in a tank at strong water heating. When
water heater is operating the water can penetrate into water heater from an exhaust pipe of safety
valve (19) for dumping of excessive pressure that occurs for water heater safety. This exhaust pipe
has to remain open for the atmosphere and to be established constantly down and in nonfreezing
environment.
ATTENTION! It is forbidden to operate EWH without safety valve or to use the valve
made by other manufactures.
It is necessary to provide water drainage from an exhaust pipe of safety valve in the sewerage having
provided at installation of EWH the corresponding drainage (20).
It is necessary to drain a small amount of water through an exhaust pipe of safety valve in the
sewerage for removal of lime and for checking of valve operability regularly (at least once a
month).
The handle (18) is intended for valve opening (17). It is necessary to watch that when the water heater
is operating, this handle should be in the position closing water drain from a tank.
Connection to water system is made according to (Fig. 1) by means of copper, plastic pipes or special
flexible sanitary connector using under the temperature to 100°C and the maximum working
pressure. It is forbidden to use the flexible connector which was in use. At installation it is not allowed
to make excessive efforts in order to avoid damage of a carving of pipe nipples, glass and porcelain
covering of an internal tank.
After connection of EWH, make sure that the shut-off valve of cold water in EWH (24) is open, and the
shut-off valve of hot water in EWH (25) is closed. Open the valve of cold water supply in EWH (22), the
valve of hot water outlet from EWH (23) and the hot tap on the mixer to provide an air outflow from
EWH. When EWH is finally filled, the continuous stream water will begin to flow from the mixer. Close
the hot tap on the mixer, check a flange for existence of leakages and, if necessary, tighten bolts.
If EWH is connected in the places which aren't equipped with a water supply system it is allowed to
pump water in EWH from utility vessel using a pump unit, or from the tank placed at the height not less
than 5 meters from the EWH top point.
19