Wiring Diagrams; Control Panel Wiring Diagram - Vortex Combi; Functional Flow Wiring Diagram - Vortex Combi - Grant Combi 70 V3 User's Installation Manual

12.3

Control panel wiring diagram - Vortex Combi

If room thermostat is fitted
remove link 4 to 5 and connect
room thermostat in its place
Mains supply
use 2 pole islolator
E N L
with power 'on' indicator
1 2 3 4 5 6 7 8
Boiler
terminal block
E N L
BL RD OR
Plug-in timer
socket
6 5 4 3 2 1
BL
RD
RD
RD
BLK
Heating
BR
switch
BR
OFF
2A
TIMED 3A 1A CONSTANT
BLK

Functional flow wiring diagram - Vortex Combi

12.4
50
Remove link 8 to 9
(yellow) if timer is fitted
Flow
switch
Frost thermostat
if fitted
9
10 11 12 13
OR OR RD BLK BLK
RD
OR
switch neon
BLK
Boiler On/Off
switch with neon
1A 2A
4B 5B
CH (adjustable)
PCB board
BL
Overheat thermostat
neon (red)
Combi V3, Combi Max and Vortex Combi models

12 - WIRING DIAGRAMS

Pressure
switch
Chassis earth
to bolt in boiler
casing
G/Y
Pressure
(amber)
Relay No.2 (top)
A2
BL
9
6
10
BR
BR
A1
Y
OR
RD
Relay No.1
Hot water
(bottom)
store
OR
OR
4B 5B
OR
Flow switch
Flow switch
Burner live
Burner live
DHW (fixed)
Live Live Neutral
Neutral
PCB board
on bracket
BL
OR
OR
BLK
C
2
BLK
Limit thermostat
Chassis earth
to bolt in panel
G/Y
BLK
14
BL
15
G/Y
16
BR
17
18
G/Y
19
BL
20
21
BL
G/Y
22
A2
9
6
OR
10
7
OR
11
A1
BL
G/Y
Heating
pump
DHW
pump
L
Burner
N
E
Colour code:
BLK Black
BL Blue
BR Brown
RD Red
Y Yellow
G/Y Green/Yellow
OR Orange