Installation / Operation Instruction Manual

Page 45
Wiring diagram is located on the inside front panel.
Page 2 of 2
HIGH LIMIT
ALARM RELAY
ALARM BELL
28 27
BL BL/W
X14-14 X14-7
X15-8 X15-4
BOILER INTEGRATED CONTROLLER
X10-2 X10-3 X10-1
Supply Voltage Controller
X9-2 X5-5 X5-10
X14-1
Controller 24VAC
X9-11
Gas Valve
Supply Voltage
Figure 1
Blocked Flue Switches BK
BR BL GY O G
APS
X14-9
X14-13 X14-4 X14-6
X14-11
X14-3 X14-10 X1-7 X1-18 X1-6 X1-17
X1-5
X1-4 X1-16
X14-2
Black Brown Blue Grey Green
X3-9
X3-4 X3-12
X3-1
X2-9 X2-10 X2-2 X2-1
X2-8
X2-3
X1-19
Orange Wire Color Legend Wire Voltage Legend
High Voltage 120VAC Low Voltage
X14-8
Gas Valve Pilot Gas Valve Main
Y V W
2 1 6 5 4 3
Display
8 7 1 2 4 3
PWM Blower 1.6 Units Only
Spark
1 7 2 8
Generator
12-PIN CONNECTOR "B"
Yellow Violet White
R O GY BL Y BR
X3-5 X3-13 X3-8 X13-6 X6-1
X13-4
X13-5 X13-1 X13-2 X13-3 X3-16
X8-2 X8-4 X8-6 X8-5 X8-3 X8-1
BR
V R/BK W/G G/R P
X1-14 X1-2 X1-1 X1-3 X1-13 X1-15 X7-1 X7-2 X7-3 X6-2 X6-3
X21-1 X21-3 X12-2 X12-1
X8-7 X8-9 X5-6 X5-2 X5-7 X5-1
G
3 4
10
LWCO
LWCO Probe
W/R
Voltage Supply LWCO
X4-13 X4-3 X4-1 X4-11 X4-16 X4-6 X4-15 X4-5 X4-9 X4-19 X4-18 X4-8
X9-3
X4-4 X4-14 X4-12 X4-2
X4-17
X4-7
TB1-2:2 GND
TB1-6:2 120N TB1-9:2 120L
9X9-1
RRed
1
TB1
2
2 1 GND
GND
Flame Rod
Y BL W
BR/R
9 5 6 8 7 3 4
W
BOILER
15 16 12 11 14 13 17 10
N
120N 120N 120L 120L 120L
24N 24N 24N 24V 24V 24V GND GND
120N
G BK/O W Y BL
4 6
BK
5 2 1
BK/O
3
SWITCH
MAIN POWER
V O BR BR/V BR/G
BR/W
BR/Y
BR
G
R BL
W BL/W BR/Y
25 21 22 24 23 19 20
AUXILIARY
PUMP PUMP
AUXILIARY
SYSTEM
DHW
35 33 34 30 29 32
31
DHW
SYSTEM SYSTEM SUPPLY RETURN
OUTDOOR
26
L N
O BL O BL R R O/W
38 37 40 39
Demands
Heat
-
43 41 42
-
+
45 46
+
44
BAS
0-10VDC
BLOWER
0-10VDC
TT - 1 TT - 1 TT - 2 TT - 2 DHW DHW
36
BR/R
Analog
Inputs
Dry
Inputs Sensor
Contacts
Outputs
LPUMP
Power
18
W
6-PIN CONNECTOR "E"
W V BR W/R BR/BK BR/R BK
+
- -
49 48 47
+
C
53 51 52 50
B
C
57 54 55 56
CONTACTS
RUN RELAY CONTACTS
N.O. N.C. N.O. N.C.
8-PIN CONNECTOR "C"
W/R
Y/G W/G BR/G Y/R
8 4 7
W/G
6 3 5 1
W/BK V W/R
A A B
61 58 59 60 62
RS485
BMS
RS485
F
LUE-A (10K)
-t° -t° -t° -t°
FLUE-B (20K)
INLET (10K)
OUTLET-A OUTLET-B
10K 20K
-t°
GND GND
CASCADE
W/R
16-PIN CONNECTOR "A"
8
15
7
14
6
BL/W BL W/R GY/BL GY/V BK/O GY/R R GY/BK
10
2
12
4 3
11
5
13
R
APS
LEVEL
CONDENSATE
CUTOUT
FLOW
PRESSURE THERMAL PRESSURE LOW GAS HIGH GAS
See Figure 1
1
BR/Y BK/W BR/R BK/O BR/R
LWCO RESET
HIGH LIMIT
MANUAL
BR/Y
9 2
TB1-1:1 GND
W/V V/W
W/BK
BR BL BK V R O
G
O
GY/R GY/BK
WW BK G W/V BK W/G BK/Y
W/G W/G
Pink P
Spark
Ignitor
(N/A on 1.6)
PUMP
0-10VDC
BLOWER
0-10VDCAnalog
Outputs
(N/A on 1.6)
RESET
AUTO
CONTROLS, MGT 1.6
WIRING DIAGRAM, SIT
H2378000B
HIGH LIMIT
ALARM RELAY
ALARM
BELL
28
27
BL
BL/W
X14-14
X14-7
X15-8
X15-4
BOILER INTEGRATED CONTROLLER
X10-2
X10-3
X10-1
Supply
Voltage
Controller
X9-2
X5-5
X5-10
X14-1
Controller
24VAC
X9-11
Gas Valve
Supply Voltage
Figure 1
Blocked Flue Switches BK
BR
BL
GY
O
G
APS
X14-9
X14-13
X14-4
X14-6
X14-11
X14-3
X14-10
X1-7
X1-18
X1-6
X1-17
X1-5
X1-4
X1-16
X14-2
Black
Brown
Blue
Grey
Green
X3-9
X3-4
X3-12
X3-1
X2-9
X2-10
X2-2
X2-1
X2-8
X2-3
X1-19
Orange
Wire Color Legend Wire Voltage Legend
High Voltage
120VAC
Low Voltage
X14-8
Gas Valve
Pilot
Gas Valve
Main
Y
V
W
2
1
6
5
4
3
Display
8
7
1
2
4
3
PWM
Blower
1.6 Units Only
Spark
1
7
2
8
Generator
12-PIN CONNECTOR "B"
Yellow
Violet
White
R
O
GY
BL
Y
BR
X3-5
X3-13
X3-8
X13-6
X6-1
X13-4
X13-5
X13-1
X13-2
X13-3
X3-16
X8-2
X8-4
X8-6
X8-5
X8-3
X8-1
BR
V
R/BK
W/G
G/R
P
X1-14
X1-2
X1-1
X1-3
X1-13
X1-15
X7-1
X7-2
X7-3
X6-2
X6-3
X21-1
X21-3
X12-2
X12-1
X8-7
X8-9
X5-6
X5-2
X5-7
X5-1
G
3
4
10
LWCO
LWCO Probe
W/R
Voltage
Supply
LWCO
X4-13
X4-3
X4-1
X4-11
X4-16
X4-6
X4-15
X4-5
X4-9
X4-19
X4-18
X4-8
X9-3
X4-4
X4-14
X4-12
X4-2
X4-17
X4-7
TB1-2:2 GND
TB1-6:2 120N
TB1-9:2 120L
9X9-1
RRed
1
TB1
2
2
1 GND
GND
Flame Rod
Y
BL
W
BR/R
9
5
6
8
7
3
4
W
BOILER
15
16
12
11
14
13
17
10
N
120N
120N
120L
120L
120L
24N
24N
24N
24V
24V
24V
GND
GND
120N
G
BK/O
W
Y
BL
4
6
BK
5
2
1
BK/O
3
SWITCH
MAIN POWER
V
O
BR
BR/V
BR/G
BR/W
BR/Y
BR
G
R
BL
W
BL/W
BR/Y
25
21
22
24
23
19
20
AUXILIARY
PUMP
PUMP
AUXILIARY
SYSTEM
DHW
35
33
34
30
29
32
31
DHW
SYSTEM
SYSTEM
SUPPLY
RETURN
OUTDOOR
26
L
N
O
BL
O
BL
R
R
O/W
38
37
40
39
Demands
Heat
-
43
41
42
-
+
45
46
+
44
BAS
0-10VDC
BLOWER
0-10VDC
TT - 1
TT - 1
TT - 2
TT - 2
DHW
DHW
36
BR/R
Analog
Inputs
Dry
Inputs
Sensor
Contacts
Outputs
LPUMP
Power
18
W
6-PIN CONNECTOR "E"
W
V
BR
W/R
BR/BK
BR/R
BK
+
-
-
49
48
47
+
C
53
51
52
50
B
C
57
54
55
56
CONTACTS
RUN RELAY
CONTACTS
N.O.
N.C.
N.O.
N.C.
8-PIN CONNECTOR "C"
W/R
Y/G
W/G
BR/G
Y/R
8
4
7
W/G
6
3
5
1
W/BK
V
W/R
A
A
B
61
58
59
60
62
RS485
BMS
RS485
F
LUE-A (10K)
-t°
-t°
-t°
-t°
FLUE-B (20K)
INLET (10K)
OUTLET-A
OUTLET-B
10K
20K
-t°
GND
GND
CASCADE
W/R
16-PIN CONNECTOR "A"
8
15
7
14
6
BL/W
BL
W/R
GY/BL
GY/V
BK/O
GY/R
R
GY/BK
10
2
12
4
3
11
5
13
R
APS
LEVEL
CONDENSATE
CUTOUT
FLOW
PRESSURE
THERMAL
PRESSURE
LOW GAS
HIGH GAS
See Figure 1
1
BR/Y
BK/W
BR/R
BK/O
BR/R
LWCO
RESET
HIGH LIMIT
MANUAL
BR/Y
9
2
TB1-1:1 GND
W/V
V/W
W/BK
BR
BL
BK
V
R
O
G
O
GY/R
GY/BK
WW
BK
G
W/V
BK
W/G
BK/Y
W/G
W/G
Pink P
Spark
Ignitor
(N/A on 1.6)
PUMP
0-10VDC
BLOWER
0-10VDCAnalog
Outputs
(N/A on 1.6)
RESET
AUTO
CONTROLS, MGT 1.6
WIRING DIAGRAM, SIT
H2378000B