- 10 -
For proper operation in the horizontal position it is necessary to change the cold water input
for hot water output and vice versa (swap of blue and red ring is recommended as well); at the
same time it is necessary to remove PEX tube from the left (lower in the horizontal position)
mouthpiece.
Figure 5
2.3
PLUMBING FIXTURE
The heater connects to water distribution tubes with G 3/4
“ 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 3/4
“. 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 6).
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 table below - Table 3.
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.
Remove
PEX tube.
Hot water (after swap)
Swap blue and red ring.
Cold water (after swap)
