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13
Schémas
Figure 13-1 Diagrammes en escalier
CASCADE
MODBUS
JUNCTION BOX
120VAC
TERMINAL STRIP
120V SUPPLY "L"
AW MODELS ONLY
INTEGRATED CONTROL
ON / OFF
SWITCH
F2
3.15A
X1-6
F1
5A
BUILDING
RECIRC PUMP
RELAY
DHW PUMP
RELAY
F3
.8A
24V DC
SUPPLY
X5-9
X5-1
120 VAC
X4-3
X4-3
24 VAC
3.5A
AW 801
ONLY
CN5-5
FLOW
SWITCH
11
TANK
THERMOSTAT
13 13
LOW GAS
HIGH GAS
PRESSURE
PRESSURE
SWITCH
SWITCH
9
9
PROVING SWITCH
RIBBON CABLE
PC INTERFACE
S2
INLET
SENSOR
S1a
OPERATING
1
SENSOR
S1b
HIGH LIMIT
SENSOR
2
S3a
FLUE
SENSOR
6
S3b
FLUE
SENSOR
13
CONNECTION
BOARD
CN5-1
1
ALARM
CONTACTS
CN5-8
2
CN5-2
3
RUN-TIME
CONTACTS
CN5-9
4
S4
CN6
16
TANK
SENSOR
CN6
17
19
SHIELD
CN6
A
20
CN6
21
B
SHIELD
22
CN6
BMS
+
23
0-10V
-
CN6
IN
24
CN6
+
25
RATE
0-10V
OUT
-
CN6
26
M
27
SHIELD
O
28
CN8-1
X6-1
X4-1
A
D
29
CN8-2
X6-2
B
X4-2
B
U
CN8-3
X6-3
X4-3
30
SHIELD
S
Manuel d'installation et de fonctionnement
NEUTRAL GROUND
TERMINAL STRIP
L
120V SUPPLY "N"
IN
X1-1
1
2
BLOWER
3
X1-2
BUILDING
RECIRC PUMP
RELAY
X1-3
DHW PUMP
RELAY
CONNECTION BOARD
LWCO
CN7-4
12
24 VAC
CN7-1
14
10
LOUVER
5
RELAY COIL
6
24VAC
6
LOUVER
7
7
8
INTEGRATED
CONTROL
X7
X5-6
X5-4
AW 286-801 ONLY
O-TEMP
DOOR TEMP
X5-12
SW
HEX SW
X5-5
AIR PRESSURE SWITCH
X5-13
GAS VALVE
X5-14
X4-7
BLOWER
X4-14
X4-6
X4-13
X6
X6
SPARK
X6
ROD
X6
CAUTION
HIGH VOLTAGE SPARK LEAD
X6
X6
NOTES:
1. Where possible, switches are shown without utilities (gas, water or
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.
X6
2. See wiring diagram for additional notes.
X6
X9-2
X9-1
X9-3
L
OUT
BUILDING
BUILDING
RECIRC PUMP
RECIRC
CONTACTS
PUMP
DHW
PUMP
DHW PUMP
CONTACTS
JUNCTION BOX
INTEGRATED
CONTROL
CN5-14 X4-8
CN7-3
CN5-10 X4-12
CN7-2
X4-10
CN5-12
CN5-11
X4-11
CN5-3 X4-5
CN5-4 X4-4
X5-2
BLOCKED
X5-10
DRAIN SWITCH
X5-11
X2-2
GAS VALVE
RELAY
X2-1
1
X5-7
2
X5-16
4
X5-8
5
X5-15
TR2
X1-7
FLAME ROD
BOX DEPICTS
OPTIONAL ITEMS
LOW VOLTAGE
120 VAC
HIGH VOLTAGE
LADDER DIAGRAM
LBL20406 REV A
75
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