STIEBEL ELTRON KV 30 Bedienung Und Installation Seite 18

INSTALLATION
KV INSTALLATION INSTRUCTIONS
2. KV installation instructions
2.1 Appliance description
The safety assembly combines those valves specified by DIN
1988, DIN 4753-1 and SR2 TRD 721 for connection on the water
side of sealed unvented electrically heated DHW cylinders up to
200 l capacity (KV 30, KV 307, KV 40). If the supply line pressure
exceeds 0.5 MPa, a pressure reducer can be installed or retrofitted
upstream to replace the connecting pipe.
C
Layout
9
7
1 Valve block
7 DHW pipe
8 Cold water pipe
9 Rose
10 Drain outlet
KV 30; part no. 000826; up to 0.48 MPa water mains pressure
safety valve 0.6 MPa, non-return valve, without pressure reducer
or pressure gauge
KV 307; part no. 000757; up to 0.56 MPa water mains pressure
safety valve 0.7 MPa, non-return valve, without pressure reducer
or pressure gauge
KV 40; part no. 000828; up to 1.0 MPa water mains pressure
safety valve 0.6 MPa, non-return valve, pressure reducer, without
pressure gauge
For use in sealed unvented wall mounted DHW cylinders up to
200 litre capacity.
2.2 Instructions and regulations
Size the drain for a fully opened safety valve. The blow-off aperture
of the safety valve must remain open towards the atmosphere.
Install the safety assembly blow-off line with a continuous
downward slope.
The safety valve requires regular maintenance and operation to
remove deposits and ensure it remains unblocked.
Select a max. flow rate of 18 l/min at the shut-off valve of the
safety assembly.
18 |KV 30, 307 40, TA 260
2.3
Observe the operating and installation instructions of the sealed
unvented DHW cylinders.
»
Flush the cold water line thoroughly;
»
Before installing the safety assembly, compare the permissible
operating pressure of the wall mounted DHW cylinder with the
corresponding pressure of the safety valve
»
Seal valve block (
connection for cold water a (observe position of the DHW
cylinder connection)
»
Seal twin nipple with union nut and insert rose supplied (
the wall connection for DHW b
»
Connect DHW pipe (
cylinder using supplied union nut with nipple c
8
»
Push cold water pipe (
insert onto DHW cylinder using supplied union nut with nipple
e
»
Connect drain outlet (
pressure in the wall mounted DHW cylinder rises above
0.6 MPa (KV 30, KV 40) or 0.7 MPa (KV 307), water is expelled via
1
the safety valve into the drain outlet.
D
10
Installation
1) and insert rose supplied (9) into wall
7) to twin nipple and screw onto DHW
8) into union nut on valve block d and
10) to a drain line (DIN 1986). If the
Installation
c
b
Note
!
In general ensure that cold water and DHW connections
on the wall and cylinder sides are fully inserted. Use
an elbow wall disc when installing the safety assembly
on a finished wall.
9) into
e
a
d
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