For reasons of space and clarity not every system has been
included and the diagrams have been simplified - for example
some Earth connections have been omitted.
Other control components shown in the diagrams, i.e. Valves,
Room Stats etc are general representations only. However the
wiring detail can be applied to the corresponding models of
most manufacturers.
Cylinder and Room Thermostat key;
C = Common; CALL = Call for heat or break on rise; SAT =
satisfied on rise; N = neutral.
1. Typical combination boiler installation
N
L
1
2
3
4
MAINS
SUPPLY
E
N
L
FOR PRECISE TERMINAL
CONNECTION INFORMATION
PLEASE RFFER TO BOILER
MANUAL, INSTRUCTIONS.
COMBINATION BOILER TERMINALS
E
N
L
REMOVE LINK IF
FITTED
BOILER LIVE OUT
TERMINALS-L2
SHOULD NOT
BE LINKED
SWITCHED LIVE
T
O BOILER
4
