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3
Schémas
Figure 3-2 Schéma de câblage - Modèles 751 - 2001
MODBUS
OPTION
RATE
OUT
BOILER
PUMP OUT
SENSOR
SENSOR
SENSOR
OUTDOOR
SENSOR
BMS
PUMP IN
CASCADE
LG CON BRD
BAS
R
PR
ALARM
CONTACTS
CONTACTS
THERMOSTAT
ENABLE
LOUVER
PROVING
SWITCH 1
SWITCH 2
(suite)
BAS
BOARD
LARGE CONNECTION BOARD
SHIELD
R
A
19
PR
B
20
SHIELD
21
22
23
25
26
29
TANK
30
31
32
33
IN
35
36
SHIELD
A
INLET SENSOR
B
39
SHIELD
OUTLET SENSOR (S9)
OUTLET SENSOR (S1)
LCD
FLUE SENSOR
FLUE SENSOR (S10)
WIFI
DONGLE
USB CABLE
OPTIONAL USB/WIFI
EXTENSION CABLE
OPTIONAL
E
ETHERNET CABLE
GND
SHIELDED CABLE FROM X4
TO J12 OR J23 AS APPLICABLE
SMALL
CONNECTION
1
BOARD
2
3
5
TANK
6
R
W
9
10
11
12
HIGH LIMIT
13
AUX
SWITCH
R
15
AUX
16
LWCO
BOARD
LWCO
TEST
PROBE
SWITCH
OR/BK
OR/BK
LWCO RESET
OR
OR
PROPANE LGPS
CAM
NATURAL LGPS
SWITCH
BLOCKED FLUE
SWITCH
BLOCKED DRAIN
SWITCH
PROPANE LIGHT
NATURAL LIGHT
CAM
SWITCH
"X5"
BLOCK WIRING
IS MODEL
DEPENDENT
Notes:
diagrams to troubleshoot unit.
Manuel supplémentaire pour Dual Fuel
BOX DEPICTS
OPTIONAL ITEMS
DUAL SENSOR
SINGLE HOUSING
INTEGRATED CONTROL
T
BK
BL
R
BL
R
BR
W
OR
OR/W
P
W
BL
BK
BL
R/W
R
W
BR
PR
T
OR
OR
BL
R
BL
R
BK
R
R
BLOWER
OR
OR
BL
BK
BR
R
W
BL
T
BL
R
OR
R
R
SPARK
GENERATOR
R
OR
P
FLUE DAMPER
TRANSFORMER
BK
BR
PR
BK
OR/W
OR
CAM
OR/BK
SWITCH
X11
USB
INTERFACE
!
WARNING
DISCONNECT POWER
BOX DEPICTS
BEFORE SERVICING
LOW VOLTAGE
120 VAC
HIGH VOLTAGE
1.5A EACH MAX
CONTACTOR
120V
BOILER PUMP
CONTACTOR
GND
DHW PUMP
L
N
CONTACTOR
JUNCTION
BOX
BK
ON/OFF
SWITCH
BK
W
G
OR/BK
OR/W
CAM
SWITCH
SMALL
SMALL
NATURAL
PROPANE
VALVE
VALVE
R/BK
R/W
CAM
SWITCH
LARGE
LARGE
NATURAL
PROPANE
VALVE
VALVE
BK
1
2 3
BLOWER
TRANSITION
FLAME SENSE
SPARK ROD
MAIN
FLAME SENSE
GND
FLUE DAMPER
BL
1
M
2
OR
3
TRANSFORMER
BL
AIR VALVE
M
BL
OR/R
AIR VALVE
PRESSURE
SWITCH
100267387 REV C
13
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