-
8
-
180mm
Figure 2
2.3
PLUMBING FIXTURES
The heater connects to water distribution tubes with G1/2“ thread in the bottom part of
the heater. Blue
-
cold water supply, red
-
hot water outlet. For potential disconnection of
the heater, the service water inlets and outlets must be provided with screw coupling Js 1/2“.
The safety valve is mounted on the cold water inlet identified with a blue ring.
The heater must be equipped with a membrane, spring
-
loaded safety valve. Safety valves with
fixed pressure
settings from the manufacturer are used for the assembly. Each individually
lockable heater must be fitted with a cap on the cold water inlet, a test valve or a stopper
to check the operation of the check valve, with a check
valve and a relief valve (Figure 3).
The safety valve with a check valve is supplied with the heater.
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.
Find necessary pressure values in the below.
Heaters must be provided with a discharge valve
mounted on the cold service water inlet to the heater
for potential disassembly or repair.
When assembling the security equipment, follow the standard.
