43
Multi Pass Oil Boilers
8 - WIRING DIAGRAMS
HONEYWELL Y PLAN WIRING DIAGRAM
HONEYWELL S PLAN WIRING DIAGRAM
HW & CH controlled by two valves
Fig. 38
Fig. 39
L N E
240 V
50 HZ
Frost
Thermostat
Pipe
Thermostat
(if fitted)
Honeywell
wiring centre
1 2
3
4 5
6 7
8
9
10
7 6 3 N L
ST699B 1002
Time Controller
(Add Link L - 5 - 8)
Boiler Terminal Block
L641
Cylinder
Stat
1
C
T6160
Room Stat
2 1 3
Pump
E
N
L
V4043H
Zone Valve
Motor
HTG
V4043H
Zone Valve
Motor
DHW
Grey
Blue
Blue
Brown
Brown
Green/Y
ellow
Green/Yellow
Orange
Orange
Grey
L N N
E N L
E
1 2 3 4 5 6 7 8 9 10 11 12
Fig. 37
Kitchen model with Honeywell S Plan (HW & CH controlled by two valves)
Typical control system wiring diagram (Kitchen models)
8.3
Control system wiring diagrams (Kitchen models with optional programmer fitted)
8.4
