Drazice TO 15 UP Инструкция по эксплуатации онлайн [29/54] 68042

- 29 -

mounting the safety valve onto a branch pipe. This allows easier exchange without having to drain

the water from the heater. Safety valves with fixed pressure settings from the manufacturer are

used for the assembly. Starting pressure of a safety valve must be identical to the maximum

During the assembly, follow the guide provided by the safety equipment manufacturer. It is

necessary to check the safety valve each time before putting it into operation. It is checked by

manual moving of the membrane from the seat, turning the make-and-break device button always

in the direction of the arrow. After being turned, the button must click back into a notch. Proper

function of the make-and-break device results in water draining through the safety valve outlet

pipe. In common operation, such a check needs to be implemented at least once a month, and

after each heater shutdown for more than 5 days. Water may be dripping off the drain pipe of the

safety valve; the pipe must be open into the air, pointed down; environment temperatures must

not drop below zero. When draining the heater, use a recommended draining valve. First, close

water input into the heater.

pipes, preventing

spontaneous heater draining and hot water penetrating back into the water main.

The electric wiring scheme is attached in the manual to the water heater (Fig. 2). The heater has to be

connected via a separate supply with a front-end main switch. The heater is connected to the 230V/50Hz

electric network using a conductor with a contact plug fitted with a switch that turns off all network poles

and the circuit breaker (protector). Electric installation must comply with valid electrotechnical standards.