Overview of Primary Product

20
£
WIRING DIAGRAM & CONNECTIONS - EXPANSION BOARD UP TO FOUR BURNERS
LN
N
L
G
Neutral
8
9
10
1
2
3
7
4
Flame Rod
Shield
Yellow
Blue
Flame Rod
Shield
Yellow
Blue
5
6
Shield
8
9
10
1
2
3
7
4
Blue
Flame Rod
Yellow
Flame Rod
Shield
Blue
Yellow
Burner #5
Burner #7
5
6
J4
Terminals
2
J1
Terminals
Using both sensors isn’t mandatory; you may use a flame rod, or a UV scanner, or both.
Burner #6
Burner #8
J3
Terminals
2
J1 (Input) Terminals
1 – Neutral
2 – 120 VAC
3 – Ground
Expansion
Power Inputs
1 – U.V. (Blue)
2 – Ground (Yellow)
3 – Flame Rod
4 – Shield Connection
5 – Not Used
6 – Not Used
7 – U.V. (Blue)
8 – Ground (Yellow)
9 – Flame Rod
10 – Shield Connection
1 – Flame Rod
2 – Ground (Yellow)
3 – U.V. (Blue)
4 – Shield Connection
5 – Not Used
6 – Not Used
7 – Flame Rod
8 – Ground (Yellow)
9 – U.V. (Blue)
10 – Shield Connection
J3 (Sensors/Burners 6 & 8) Terminals
2
Burner #6
Burner #8
J4 (Sensors/Burners 5 & 7) Terminals
2
Burner #5
Burner #7
UV7A4
or UV7R4
U.V. Scanner
UV7A4
or UV7R4
U.V. Scanner
UV7A4
or UV7R4
U.V. Scanner
UV7A4
or UV7R4
U.V. Scanner
(GN) GND (Return)
D
C
A
B
(BK) Signal (UV)
(RD) Neutral
(WH) 120 VAC
UV7SC
Self-Check
Scanner
G
120 VAC
Note: Connect J1 of Expansion Board
to J9 of main chassis.
Main Chassis J9 Terminals
2
2 22
2
2