8
Midco International Inc.
8471 95
Part 1 Installation
V Electrical
Continued
B - Wiring
Instructions
Continued
120V Interrupted Pilot Version with Honeywell Flame Safeguard
R
R
HIGH A/S
R
LOW A/S
R/W
R/W
R/BK
14
13
9
5
4
120V
RELAY
12
TEMPERATURE
CONTROL
11
W
BK
+
-
6
7
1
R
SCEBM-2
INPUT1
2
1
MAIN GAS VALVES
BL
BL/W
9
2
SCEBM-2
INPUT2
4
3
PILOT GAS VALVE
BK
BK
8
3
7
5
7
7
IGNITION TRANSFORMER
4
10
F
BL
BL/W
BL
BR
BR/W
BR
W
BR
O/W
BL
BL/W
BL
G
G
B
Y
A
14
13
SCEBM-2
2-10V
6
8
1
1
1
3
3
2
2
BL
O
O
W
W
14
13
9
5
4
5
6
7
8
9
10
11 12
TERMINAL STRIP
JUMPERS
LEGEND
F
5
SOLID WIRING AND
DASHED WIRING AND
ENCIRCLED: FLAME
SOLID ROUND:
OPEN ROUND: COMPONENT
12
14
13
9
+
+
+
+
5
+
+
8
4
1
+
+
RELAY
SOCKET
COMPONENTS BY MIDCO
COMPONENTS BY INSTALLER
SAFEGUARD
TERMINAL BLOCK STRIP
UV SCANNER
BL
6
6
W
GAS PRESSURE SWITCHES
BK
15
Y/BK
CALL FOR
HEAT
10
BK
NEUTRAL
120/1/60
HOT
6
11
W
GROUND
5
L2
5
12
3
OPTIONAL 120V ALARM
BLOWER
G
BK
G
W
14
15
BLOWER
16
Y
R
BL
13
SCEBM-2
FAN
W
6
CO
M
BL
Y
24V
RE
D
ORN
120V
SCEBM-2
24VAC 8
7
BK
4
9
BL
Y
BK
Y/BK
C
NO
NC
LO
HI
C
NO
NC
W
Y/BK
ON/OFF
Figure 4B:
Wiring Diagram for the VA series models
120V UV Interrupted Pilot Version with Honeywell Flame Safeguard