Grant Vortex Eco 21/26 - 10 - Wiring Diagram; 10.1 Control Panel Wiring Diagram; 10.2 Typical Control System Wiring Diagrams

42
Grant Vortex Eco Utility Oil Boilers
Fig. 26
Control panel wiring diagram
10.1
10 - WIRING DIAGRAM
Fig. 27
Typical control system wiring diagrams
10.2
Limit
Thermostat
Control
Thermostat
2
C
1
C
1A 2A
E
N
L
E
N
L
1
2
3
4
5
6
E
N
L
E
N
L
Supply to
Burner
Mains Supply:
Use 2 pole isolator
with power "ON"
indicator
G/Y
G/Y
G/Y
R
Bl
Bl
Br
Br
Br
Colour code: Br - Brown, Bl - Blue, R - Red, G/Y - Green/Yellow
Boiler
On/Off
G/Y
4B
5B
G/Y
Bl
Br
G/Y
Bl
Br
Boiler Terminal Block
LNE
240 V
50 HZ
LNE
Supply to
Burner
Frost
Stat
Pipe Stat
(if fitted)
134NL
Pump
E
N
L
Wiring
Centre
1
2
3
45678910
Boiler Terminal Block
Grant 2-Channel Wall Mounted
Programmer (Ref. ESKIT)
123456
LNE
ENL
CH and HW controlled by 3-port mid position valve
Cylinder
Stat
1
C2
Room
Stat
213
3-Port
Mid Position
Zone Valve
Blue
Green/Yellow
White
Grey
Orange
CH & HW controlled by two 2-port zone valves
Cylinder
Stat
1
C
Room Stat
21
3
2-port
Zone Valve
Motor
HTG
2-port
Zone Valve
Motor
DHW
Grey
Blue
Blue
Brown
Brown
Orange
Green/Yellow
Green/Yellow
Orange
Grey
Frost
Stat
Pipe Stat
(if fitted)
134NL
LNE
240 V
50 HZ
Pump
E
N
L
Wiring
Centre
1
2
3
45 6 7 8 9 10
Boiler Terminal Block
Grant 2-Channel Wall Mounted
Programmer (Ref. ESKIT)
123456
LNE
ENL
LNE
Supply to
Burner