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XIII. Electrical (continued)
Boiler must be grounded in accordance
with ANSI National Electric Code.
To Grounding
Ground Screw
Conductor
Terminal
Transformer
used for only
208 V and 230 V
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
Connect to V/C/P
Primary
Power Supply
Fuses
A
B
C
Fuses used for only
208 V and 230 V
120vac
GRD
PCB-01
F1
(6.3A Slow Blow)
L1
P1-2
70
L2
P1-5
71
P2-1
P2-6
72
73
74
P2-3
C
75
J1
P2-8
76
C
77
J2
P2-9
78
(Cut Jumper
When Limit
79
Used)
J3
P2-10
80
81
N/A
P2-5
82
83
N/A
84
P2-4
85
N/A
J4
P3-1
86
87
88
89
90
P3-7
91
Spare Limit
J5
P3-8
92
93
Spare Limit
J6
P3-9
94
95
J7
P3-10
96
C
97
J8
P3-11
98
C
99
J9
P3-12
100
101
J10
N/A
P3-6
102
103
P3-5
104
P1-3
P1-6
Blue
P2-7
P3-4
3
P3-3
107
2
Main Gas Valve
108
1
109
P2-2
110
1
P3-2
111
RED
A
112
P4a-1
P18b-1
P4a-3
P18b-2
P4a-2
P18b-3
P1-1
L (+)
P1-4
N (-)
Figure 30: Single Phase Wire Diagram
L1
L2
Blower
Combustion Blower Power
Fuses
D
GRD
S
T
1
GRD
N
L
24vac
120-24Vac
Transformer
Back View
1
Burner on/off
LT
switch
2
3
NC
Condensate
Float Switch
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:
Male/Female Connector
Thermal Fuse
Screw Terminal
NO
70
PCB Screw Terminal
Low GPS
Ground Screw Terminal
NC
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
Brown
Ignition
Transformer
APS
For Spark
Blower On
C
NO
E
1.1
Alarm Buzzer with
Internal Silence
B
PCB-05
39
Lockout Alarm Output
R2
(Dry Contact)
40
R2
41
Boiler Running Output
R1
(Dry Contact)
R1
42
24Vdc Display
Power Supply
64
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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