Grant Spira Series - Page 57

57
Figure 8-7: Hopper wiring diagram – single boiler hopper
SL1
SL2 SL3
PL1
N N L1
L2 L3 L4
L5 L6
L7
C
NC NO
1
47
8 5 2
9
6
3
LN123
5 4 3 2 1
Frost
Thermostat
Pipe Stat
(If fitted)
L2 N L1
L1
N
L2 L1
L2 N L1
HOPPER LIMIT
SWITCH
TO VACUUM
SYSTEM OR
BULK AUGER
SYSTEM ONLY
PERMANENT MAINS SUPPLY
AND SWITCHED
LIVE SUPPLY
BOILER
SUPPLY
FIT TO REAR OF BOILER
BULK
STORE
HOPPER
ONLY
PERMANENT LIVE
SWITCHED LIVE
To Low Pellet Warning Lamp.
ONLY USE IN 'HOPPER ONLY' MODE
IN LINE FUSE HOLDER C/W
5 AMP FUSE ( 5 X 20mm )
IN LINE FUSE HOLDER C/W
5 AMP FUSE ( 5 X 20mm )
Green/Yellow
Blue Black Brown
Brown
Yellow
Orange
Red
Red
Brown Black Green/Yellow
Green/Yellow
Brown
Blue
Blue
Blue
4
1 2 3 4 5
Black
Blue
Grn/Yellow
Brown
Switched Live
Neutral
Earth
Permanent Live
Red
Yellow
Orange
!
NOTE
With the central heating valve fitted, connect the pipe thermostat between L4 and L7. Without the central heating valve fitted, connect the pipe thermostat between L4 and L6.