107
910.001.1 - EN
ISTRUCTIONS PERTAINING TO THE INSTALLER
21. ILLUSTRATED WIRING DIAGRAM
21.1 POWER HT 1.850 - 1.1000
Cables colours
C =
light blue
M =
br
own
N =
black
R =
r
ed
G/V =
yellow/gr
een
B =
white
PROGRAMMABLE
OUTPUT
230
V
MAINS POWER
TERMINAL BOARD
FUSE
CENTRAL HEATING
SYSTEM PUMP
CONNECTION POINTS
DOMESTIC HOT WATER
PUMP CONNECTION
POINTS
SAFETY
THERMOST
AT
FLAME SENSING
ELECTRODE
NTC
RETURN
HEA
TING PROBE
ROOM THERMOST
AT
QAA73 CONNECTION
FLOOR
TEMPERA
TURE
THERMOST
AT CONNECTION
OUTSIDE
SENSOR
D.H.W
. STORAGE THANK
SENSOR
IGNITION ELECTRODE
HYDRAULIC
PRESSURE
SENSOR
IGNITER
GAS V
AL
VE
FA
N
MAINS POWER 230 V - 50 Hz
FLUE
THERMOST
AT
CT_0822 / 0912_1001
NTC DELIVER
Y
HEA
TING PROBE