E93.1001EN.C Manual CD
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9
1.3
Safety valve
Between the water heater and the safety valve, DO NOT apply a closing valve or any other form of narrowing,
because this might disturb the correct functioning of the safety valve.
The right safety valve has been supplied with the CD
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water heater.
Water heater
Safety valves
Part number
CD
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80-150
27112 Prescor B ¾ - 10 bar - 150 kW
E04.015.090
CD
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180
29007 Prescor B 1 - 10 bar - 250 kW
E04.015.091
The CD
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water heater and tank should be installed by a skilled installer according to all applicable standards and
regulations for tap water installations. Use the next scheme as guideline. When multiple water heaters and tanks
are applied, every combination has to be equipped with its own safety valve.
A) Service pipe inlet
B) Hot water supply circulation
C) Circulation return
1) Pressure relief valve (manda-
tory in case service water pres-
sure is too high)
2) Inlet combination with valve
(mandatory)
3) Apply filter if necessary (recom-
mended)
4) A suitable safety valve must be
mounted near the water heater
(mandatory)
This safety valve may never be
isolated from the water heater
by means of a ball valve
5) Remote tank sensor (neces-
sary)
→
mounting hereof: see §
6) Drain valve (recommended)
7) Hot and cold water mixers
SAFETY COMPONENTS
NB!
The picture shows an example of a functional installation. The safety components as shown in
the picture are NOT necessarily conform all applicable standards and regulations.
ALWAYS have the system installed by a skilled installer. Safety must be added according to all
applicable standards and regulations.
1
2
3
A
B
C
4
7
A
5
6
6
6
PUMP
NON RETURN VALVE
VALVE
SAFETY VALVE
AUTOMATIC VENT
FILTER
INLET COMBINATION
- Overflow
- Controllable return valve
- Valve
PRESSURE REGULATING
