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13
Schémas
Figure 13-2 Diagramme en escalier
120VAC
PC INTERFACE
SYSTEM
SENSOR
OUTDOOR
SENSOR
SENSOR
CASCADE
SYS PUMP
BLR PUMP
RATE
SHIELD
MODBUS
SHIELD
78
JUNCTION BOX
TERMINAL STRIP
120V SUPPLY "L"
INTEGRATED CONTROL
ON / OFF
SWITCH
X1-6
F2
X1-1
3.15A
F1
X1-2
5A
SYSTEM PUMP
SYSTEM PUMP
RELAY
X1-3
DHW PUMP
DHW PUMP
RELAY
X1-4
BOILER PUMP
BOILER PUMP
RELAY
F3
.8A
24V DC
SUPPLY
X5-9
X5-1
120 VAC
3.5A
X4-3
24 VAC
KB 801
ONLY
LWCO
CN5-5
CN7-3
24 VAC
CN7-1
HEAT/LOOP
1
DEMAND
19
HEAT/LOOP
2
DEMAND
17
HEAT/LOOP
3
DEMAND
15
TANK
THERMOSTAT
13
LOW GAS
HIGH GAS
PRESSURE
PRESSURE
SWITCH
SWITCH
10
RIBBON CABLE
X5-6
S2
INLET
SENSOR
X5-4
S1a
OPERATING
SENSOR
1
X5-12
S1b
HIGH LIMIT
SENSOR
2
X5-5
S3a
FLUE
SENSOR
6
X5-13
S3b
FLUE
SENSOR
X5-14
13
CONNECTION
BOARD
CN5-1
X4-7
1
ALARM
CONTACTS
CN5-8
X4-14
2
CN5-2
X4-6
3
RUN-TIME
CONTACTS
CN5-9
X4-13
4
S6
CN6
X6
21
CN6
X6
22
CN6
S5
X6
23
24
S4
CN6
X6
26
TANK
CN6
X6
27
29
SHIELD
CN6
X6
30
A
CN6
X6
31
B
CN6
X6
32
SHIELD
CN6
X6
+
BMS
33
0-10V
CN6
X6
-
34
IN
CN6
X6
+
35
0-10V
IN
-
CN6
X6
36
CN6
X6
+
37
0-10V
OUT
CN6
X6
-
38
CN6
X6
+
39
0-10V
OUT
-
40
M
41
O
CN8-1
X4-1
42
X6-1
A
D
CN8-2
X6-2
B
X4-2
43
B
U
CN8-3
X6-3
X4-3
44
S
Manuel d'installation et de fonctionnement
NEUTRAL
TERMINAL STRIP
120V SUPPLY "N"
L
IN
GROUND
BLOWER
1
2
3
RELAY
RELAY
RELAY
CONNECTION BOARD
FLOW
CN7-4
SWITCH
11
12
CN7-2
20
18
16
14
9
9
INTEGRATED
LOUVER
CONTROL
5
RELAY COIL
24VAC
6
LOUVER
7
PROVING SWITCH
X7
8
DOOR
O-TEMP
TEMP
BLOCKED
HEX SW
SW
DRAIN SWITCH
AIR PRESSURE
SWITCH
GAS VALVE
BLOWER
SPARK
ROD
CAUTION
HIGH VOLTAGE SPARK LEAD
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.
2. See wiring diagram for additional notes.
X9-2
X9-1
X9-3
L
OUT
SYSTEM
PUMP
CONTACTS
SYSTEM
PUMP
BOILER
PUMP
CONTACTS
BOILER
PUMP
DHW
PUMP
CONTACTS
DHW
PUMP
RELAY BOARD
INTEGRATED
CONTROL
CN5-14
X4-8
CN5-10 X4-12
CN5-7
X4-1
X4-9
CN5-13
CN5-6
X4-2
CN5-12
X4-10
CN5-11
X4-11
CN5-3
X4-5
CN5-4
X4-4
X5-2
X5-10
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
LBL20400 REV A
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