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13
Schémas
Figure 13-1 Diagrammes en escalier_Part 1
HEX1
TSTAT
CAUTION
SHIELD
CASCADE
RS485
SHIELD
TANK
SENSOR
EXTERNAL
CONTROL
SHIELD
MOD BUS
RS485
SHIELD
NOTES:
1. Where possible, switches are shown without utilities (gas, water or
2. See wiring diagram for additional notes.
66
CONTROL
MODULE 1
LOUVER
RELAY 1
X8
X6-8
X5-7
X5-7
24V
X5-4
FLAP
AIR PRESSURE
VALVE
SWITCH
X5-14
HI-LIMIT
X5-8
INLET
SENSOR
X5-1
OUTLET
X5-9
SENSOR
X5-2
FLUE
SENSOR
X5-3
BLOCKED
DRAIN
DOOR
O-TEMP
TEMP
AUTO RESET
HEX SW
SW
X5-10
HIGH LIMIT
X2-2
GAS VALVE
GAS VALVE
RELAY
X2-1
BLOWER
1
X5-5
2
X5-13
4
X5-6
5
X5-12
TR1
X1-7
FLAME ROD
SPARK
ROD
HIGH VOLTAGE SPARK LEAD
CONNECTION BOARD
CN3
CN4-3
CN3-16
CN4-1
CN3-15
CN4-2
CN3-14
CN4-4
CN3-13
CN4-6
CN3-12
CN3-11
CN3-10
CN3-9
CN3-8
CN3-7
CN3-6
-
CN4-10
10VDC
CN3-5
+
CN3-4
CN3-3
CN3-2
CN3-1
MOD BUS
KIT
electricity) connected to the unit. As such, actual switch states may
vary from those shown on diagrams depending upon whether utilities
are connected or a fault condition is present.
Manuel d'installation et de fonctionnement
BOX DEPICTS
OPTIONAL ITEMS
LOW VOLTAGE
120 VAC
HIGH VOLTAGE
LOUVER
RELAY 2
FLAP
VALVE
HI-LIMIT
INLET
SENSOR
OUTLET
SENSOR
FLUE
SENSOR
DOOR
HEX2
O-TEMP
TEMP
AUTO RESET
TSTAT
HEX SW
SW
HIGH LIMIT
GAS VALVE
BLOWER
SPARK
ROD
CAUTION
HIGH VOLTAGE SPARK LEAD
4
CONTROL
MODULE 1
X4-3
X4
X4-3
X4-1
X4-1
X4-2
X4-2
X4-4
X4-4
X4-6
X4-10
CONTROL
MODULE 2
X8
X5-7
24V
X5-4
AIR PRESSURE
SWITCH
X5-14
X6-8
X5-8
X5-1
X5-9
X5-2
X5-3
X5-10
X2-2
GAS VALVE
RELAY
X2-1
1
X5-5
2
X5-13
4
X5-6
5
X5-12
TR1
X1-7
FLAME ROD
CONTROL
MODULE 2
X4
LADDER DIAGRAM
LBL20414 REV A
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