Install Instructions

78
Figure 14-1 Wiring Diagram
14 Diagrams
BOX DEPICTS
OPTIONAL ITEMS
LOW VOLTAGE
120 VAC
HIGH VOLTAGE
BOX DEPICTS
DUAL SENSOR
SINGLE HOUSING
X1-7
OR
OR
BR
PR
OR
BR
BR
PR
PR
CN2-4
CN2-1
CN1-5
CN1-6
CN1-3
CN1-4
CN1-1
CN1-2
K1
K2
K3
ON/OFF
SWITCH
JUNCTION
BOX
BK
W
1 2 3 4 5
G
R
R
W
3
A
R
T
W
BK
Y/BK
BL
BLOWER
-T
INLET SENSOR S2
FLUE SENSOR S3a
FLUE SENSOR S3b
INTEGRATED
CONTROL
BK
Y
GAS VALVE
@24VAC
SPARK
ROD
TRANSFORMER
TR2
G
HIGH VOLTAGE SPARK LEADCAUTION
FLAME SENSOR
P/BK
Y
W/R
X1-3
X1-4
X1-2
X1-6
X1-5
X1-8
X1-1
X5-7
X5-16
X5-8
X5-15
X5-9
X5-1
X5-2
X5-10
X5-11
X5-4
X5-12
X5-6
X5-5
X5-13
X5-14
X2-2
X2-1
BLOCKED DRAIN SWITCH
O
CN2-2
CN2-3
DHW
PUMP
BOILER
PUMP
SYSTEM
PUMP
120V
SUPPLY
L
N
GND
L
N
X-7
MODBUS BOARD
MTR-01
X6-3 X6-2
X6-1 X6-4
X9-1
X9-2
X9-3
X9-4
X4-1
X4-2
X4-3
X4-4
X5-1
X5-2
X1-1
X1-2
X1-3
BK
W
G
R
BL
G
-T
-T
-T
-T
SHIELD
GROUNDING
JUMPER
O
GY
G
R/BK
W/BK
GY
PR
1
2
G
3
AIR PRESSURE SWITCH
P
O/BK
ALARM
CONTACTS
RUN-TIME
CONTACTS
24 VAC LOUVER
RELAY COIL
LOUVER
PROVING SWITCH
GAS PRESSURE
SWITCH
FLOW
SWITCH
TANK
THERMOSTAT
11
12
13
14
15
16
17
18
19
20
SYSTEM
SENSOR
OUTDOOR
SENSOR
TANK
SENSOR
CASCADE
A
B
SHIELD
SHIELD
0-10V
+
-
BMS
IN
0-10V
+
-
SYS PUMP
IN
0-10V
+
-
BLR PUMP
OUT
0-10V
+
-
RATE
OUT
MODBUS
OPTION
A
B
SHIELD
SHIELD
LOW
WATER
CUT-OFF
24 VAC
COM
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
CN7-1
CN7-2
CN7-3
CN7-4
CONNECTION BOARD
C
N8-1
CN8-2 C
N8-3
R
BL
G
BELL JUMPER
ALARM BELL
SILENCING SWITCH
HEAT/LOOP
DEMAND
3
HEAT/LOOP
DEMAND
2
HEAT/LOOP
DEMAND
1
CN5-1
CN5-8
CN5-2
CN5-9
CN5-3
CN5-10
CN5-11
CN5-4
CN5-5
CN5-14
CN5-12
CN5-6
CN5-13
CN5-7
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
CN6
X6
X4-7
X4-14
X4-6
X4-13
X4-5
X4-12
X4-11
X4-4
X4-3
X4-8
X4-10
X4-2
X4-9
X4-1
CN9
BL
Y
OPTIONAL
ETHERNET CABLE
E
GND
J2
J9B
J9A
J12
J4
J8
OPTIONAL USB/WIFI
EXTENSION CABLE
LCD
DISPLAY
24V
J3
J11
COMMUNICATION
CONTROL BOARD
WIFI
DONGLE
SHIELDED CABLE
DAMPER
RELAY
FLUE DAMPER
3
2
1
M
Notes:
1. All wiring must be installed with local, state, provincial, and national code requirements per either N.E.C. in USA or C.S.A. in Canada.
2. If any original equipment wire as supplied with appliance must be replaced, then it must be replaced with wire having same wire gauge (AWG) and rated for a minumum of 105°C. Exceptions: Replacement high voltage
spark lead and ribbon cables must be purchased from the factory. Use of a non-approved spark lead or ribbon cables can lead to operational problems which could result in non-repairable damage to the integrated controller
or other components.
3. Actual connector block locations may vary from those shown on diagrams. Refer to actual components for proper connector block locations when using diagrams to trouble shoot.
4. Where possible, switches are shown without utilities (gas, water, electricity) connected to the unit. As such, actual switch states may vary from those shown on diagrams depending upon whether utilities are connected or
fault condition is persent.
100329773 REV B
FAN
RELAY
PUMP RELAYS
OUTLET SENSOR:
OPERATING S1a
OUTLET SENSOR:
HIGH LIMIT S1b
Installation & Operation Manual