Non-Return Valve; Shut-Off Valve; Kv 40: Pressure Reducing Valve; Specification - STIEBEL ELTRON KV 30 Bedienung Und Installation

INSTALLATION

Specification

9.2

Non-return valve

9.2.1 Checking the non-return valve
f Check the non-return valve annually. f
f Draw off hot water until the heater of the DHW cylinder f
switches on.

1 Shut-off valve

2 Pressure gauge screw
f Remove the cap from the shut-off valve. f
f Turn the shut-off valve clockwise to shut off the cold water f
inlet.
f Remove the pressure gauge screw. f
No water must drip from the shut-off valve.
f If water drips out, the non-return valve is not leaktight. Re- f
place the safety assembly.
f If cold water drips, turn the shut-off valve anti-clockwise f
briefly to open it and flush out any dirt. Then close the shut-
off valve again. If water continues to escape, replace the
safety assembly.
9.3 Shut-off valve
The shut-off valve is maintenance-free.
f If the shut-off valve proves to be faulty, replace the safety f
assembly.
9.4

KV 40: Pressure reducing valve

9.4.1 Checking the pressure reducing valve
f Open the water supply pipe (floor shut-off valve, for f
example).
f Remove the cap from the shut-off valve. f
f Turn the shut-off valve clockwise to shut off the cold water f
inlet.
f Remove the pressure gauge screw and replace it with a pres- f
sure gauge.
f Open the shut-off valve and check the pressure. f
f If the pressure does not correspond to the maximum per- f
missible pressure (see chapter "Specification / Data table"),
regulate the pressure by turning the quadrant at the pressure
reducing valve.
14 | KV 30 | KV 307 | KV 40
f Check by drawing off water briefly. If the pressure rises, f
clean or replace the pressure reducing valve.
9.4.2 Removing / cleaning the pressure reducing valve
f Close the water supply pipe (e.g. floor shut-off valve) to shut f
off the cold water supply.
f Open the tap to drain the DHW cylinder. f
1
2
1 Top part, valve
f Pull the cap off the pressure reducing valve. f
f Unscrew the top part of the valve. f
f Remove the washer and spring. f
f Raise the working part with a screwdriver. Remove the work- f
ing part of the pressure reducing valve from the casing.
f Clean the working part with clear, cold water. f
f Reinsert the working part. The selected output pressure re- f
mains unchanged.
f Install the top part of the valve. f
f Replace the pressure reducing valve if this does not fix the f
problem.
10. Specification

10.1 Dimensions

KV 30
100
G ½ G ½
6
14x1
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1
100 ±5