Drazice OKHE ONE 120 Instrukcja obsługi i instalacji - Strona 9
Przeglądaj online lub pobierz pdf Instrukcja obsługi i instalacji dla Podgrzewacz wody Drazice OKHE ONE 120. Drazice OKHE ONE 120 17 stron. Flat tank-type water heater for vertical mounting
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OKHE ONE 30
OKHE ONE 50
OKHE ONE 80
OKHE ONE 100
OKHE ONE 120
2.3 PLUMBING FIXTURE
Power water connects to pipes with ¾" 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.
Each hot service water pressure heater must have a safety valve with a membrane spring.
Nominal clearance of safety valves is defined by standard. Heaters are not equipped with
a safety valve. The safety valve must be easily accessible, as close to the heater as possible. The
inlet pipes must have at least the same clearance as the safety valve. Safety valve is placed high
enough to secure dripping water drain by gravity. We recommend 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 allowed heater
pressure, and at least 20 % higher than the maximum pressure in the water main (Table 3). If
the water main pressure exceeds such value, a reduction valve must be added to the system.
No stop valves can be put between the heater and the safety valve. During assembly, follow
the guide provided by the safety equipment manufacturer. Every independently closing heater
must include a shutoff, test cock, or a plug for the inspection of the backflow fitting, backflow
fitting, and safety valve on the cold water supply.
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
F
350
550
750
950
1150
Figure 3
180 mm
F
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