HeatMaster 25 C: A1003474 - 664Y7000 • B
en
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APPLIANCE DESCRIPTION
CONNECTIONS - AT THE BACK
4
9
10
5
6
2
7
11
3
8
1
1.
Discharge for built-in DHW safety valve / (T & P re-
lief valve - UK only) outlet to be connected to the
sewage system
2.
Gas connection [M]
3.
Grommets for electrical wires (low voltage con-
trol)
4.
Domestic Hot Water outlet [M]
5.
Heating supply connection ([F]
6.
Connection for provided heating safety valve (to
be installed).
7.
Connection for low temperature heating circuit
return (not used)
8.
Heating return connection [F]
9.
Grommets for electrical wires (230 V)
10.
Domestic Hot Water inlet [M]
11.
Flue connection
