8
3.5 Pipe installation
The product is designed to be permanently
connected to the mains water supply. Ap-
proved pipes of the correct size should be used
for installation. The relevant standards and reg-
ulations must be followed.
20
30
40
50 60 70
80
90
100
110
10
120
0
°C
D
E
G
F
J
H
I
3.5.2 Incoming water pressure
The efficiency of the product depends on
the incoming cold water pressure. The water
pressure should be min. 2 bar and max. 6 bar
throughout the day. Excessive water pressure
can be adjusted by installing a pressure reduc-
tion valve.
3.5.3 Connecting pipes
Pipes of suitable size and quality should be run
to the connections on the product and fixed
with a suitable sealant.
A safety valve of the approved type (see page 3)
should be fitted in the heating circuit (not sup-
plied). The safety valve should not be plugged
or blocked. Any overflow pipe from the safety
valve must be clear, undamaged and frost-free
with a fall to the drain.
3.5.1 Connections - dimensions and function
Connect-
ion
Dimension
Function
D
3/4” int. thread Cold water in
E
3/4” int. thread Coil connection, lower
F
ø8 mm
Sensor slot
G
3/4” int. thread Coil connection, upper
H
3/4” int. thread Hot water circulation
I
3/4” int. thread Hot water out
J
3/4” int. thread Ventilation / hot water out
Summary of Contents for Delta Coil DC 200
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