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XIII. Electrical (continued)
Boiler must be grounded in accordance
with ANSI National Electric Code.
Ground Screw
Terminal
Concert Boiler
Control (A1167)
J4-12
J4-8
J4-10
(A8)
J7-1
(A2)
J6-1
(A3)
J7-6
(LCI)
J6-3
(A4)
J7-5
(A5)
J7-4
(A6)
J7-3
(A7)
J7-2
(ILK)
J5-1
J5-4
(A1)
J6-2
J5-2
J6-7
J6-8
Primary
To Grounding
Fuses
Conductor
A
B
C
Transformer
120vac
GRD
PCB-01
F1
(6.3A Slow Blow)
L1
P1-2
70
L2
P1-5
71
P2-1
P2-6
72
73
P2-3
74
75
J1
P2-8
76
77
J2
P2-9
78
(Cut Jumper
When Limit
79
Used)
J3
P2-10
80
81
N/A
P2-5
82
83
N/A
P2-4
84
85
N/A
J4
P3-1
86
87
88
89
P3-7
90
91
Spare Limit
J5
P3-8
92
93
Spare Limit
J6
P3-9
94
95
J7
P3-10
96
97
J8
98
P3-11
99
J9
P3-12
100
101
J10
N/A
P3-6
102
103
P3-5
104
P1-3
P1-6
P2-7
P3-4
P3-3
107
108
109
P2-2
110
P3-2
111
112
P4a-1
P4a-3
P4a-2
P1-1
P1-4
Figure 31: Three Phase Wire Diagram
Connect to V/C/P
Power Supply
L2
L1
L3
Blower
Fuses
Combustion Blower Power
D
GND
S
T
1
GND
L3
L2
L1
24vac
120-24Vac
Transformer
Back View
1
Burner on/off
LT
switch
2
3
NC
C
Condensate
Float Switch
C
NO
Water Flow
Switch
PCB-03
P30-3
23
Cold Air Damper
J12
24
End Switch
25
Standby Loss
J13
26
Damper End Switch
27
Isolation Valve
J14
28
End Switch
29
External Limit
J15
(High Limit Auto
30
Reset when used
31
PN: 80160667)
Spare
J16
32
Limit
P30-4
1
LWCO
2
P1
P2
Wiring Line Types:
Terminal Types:
Thermal Fuse
Male/Female Connector
C
NO
Screw Terminal
Low GPS
70
PCB Screw Terminal
C
NC
Ground Screw Terminal
High GPS
Wire Nut
Annotations:
Blocked
Vent
Jumpers Cut: 1, 2, 3, 7, 8, 9, 11
Switch
Unused Terminals: 33, 34, 35, 37, 38
Last Terminal: 118
Blue
Brown
Ignition
Transformer
APS
For Spark
Blower On
C
NO
3
E
2
Main Gas Valve
1
1
1.1
Alarm Buzzer with
RED
Internal Silence
A
B
PCB-05
P18b-1
39
Lockout Alarm Output
R2
(Dry Contact)
40
P18b-2
R2
Boiler Running Output
41
R1
(Dry Contact)
P18b-3
R1
42
24Vdc Display
L (+)
Power Supply
N (-)
65
Continue to low
voltage circuit
Wiring Legend
Factory Wire Harness – Line Voltage
Factory Wire Harness – Low Voltage
Factory wiring special Igniter
Field Wiring – Line Voltage
Field Wiring – Low Voltage
Terminals :
C = Common
NC = Normally Closed
NO = Normally Open
Uncut Jumper
J8
Cut Jumper
J8
Optional Part
Field Installed
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