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PRESSURE
PWM SIGNAL
TRANSMITTER - 1
PRESSURE
BLOWER
TRANSMITTER - 2
BOILER PUMP
P
FACTORY
INSTALLED
TB1-120L
TB1-120N
TB1-GND
< ---- continued from previous page
FT
1
2
X22-2
3
1
2
X22-1
3
TB1-120L
X3-04-5
TB1-120N
X3-04-4
CONTROLLER POWER
TB1-GND
X3-04-3
X3-04-2
X3-04-1
SAFETY CHAIN IS SATISFIED
X5-03-4
X5-03-2
X5-03-1
HEAT DEMAND FROM BOILER CONTROLLER
X3-05-1
X3-02-1
X5-01-2
X5-01-3
X5-02-2
X5-02-3
12VDC
POWER SUPPLY
L
V+
O2-3-5
N
CONTROLLER POWER
V-
O2-3-4
G
O2 SENSOR
O2-1
X22-11
O2-3-5
RS485
X22-12
O2-3-4
3
BIC
(continued)
LMV BURNER CONTROLLER
O2 CONTROLLER
X21-1
X9-1
SPARK
X4-02-3
TB1-120N
GENERATOR
SPARK
IGNITOR
FLAME
X10-05-2
ROD
X10-05-1
MAIN GAS VALVE
X8-02-1
TB1-120N
MAIN GAS VALVE
TB1-120N
AIR
ACTUATOR
FUEL
ACTUATOR
Page 59
4
1
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
BOILER
23
PUMP
24
Power
Outputs
25
AUXILIARY
26
DHW
27
PUMP
28
SYSTEM
29
PUMP
30
Dry
Contacts
ISOLATION
31
VALVE
32
ALARM
33
BELL
34
SYSTEM
35
SUPPLY
36
SYSTEM
37
RETURN
38
Sensor
Inputs
39
DHW
40
41
OUTDOOR
42
43
Safety
FIELD
Chain
INTERLOCK
44
PROOF OF
45
CLOSE
46
Isolation
Valve
PROOF OF
47
OPEN
48
TT - 1
49
TT - 1
50
51
TT - 2
Heat
Demands
TT - 2
52
53
DHW
DHW
54
55
Analog
BAS
Input
0-10VDC
56
57
Analog
PUMP
Output
0-10VDC
58
59
C
Run Relay
N.C.
60
Contacts
61
N.O.
C
62
Alarm Relay
63
N.C.
Contacts
N.O.
64
B
65
Cascade
66
A
RS485
67
GND
68
B
BMS
A
69
RS485
GND
70
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