Lochinvar FTXL FTX400N Manuel D'installation Et De Fonctionnement page 79

13
Schémas
Figure 13-2 Diagramme en escalier
120VAC
ON / OFF
SWITCH
SYSTEM
SENSOR
OUTDOOR
SENSOR
DHW RECTRC
SENSOR
TANK
SENSOR
SHIELD
CASCADE
SHIELD
BMS
SYS PUMP
BLR PUMP
OUT
RATE
OUT
SHIELD
MODBUS
SHIELD
(suite)
JUNCTION BOX
TERMINAL STRIP
120V SUPPLY "L"
BLOWER
BLOWER
1
RELAY
INTEGRATED CONTROL
X1-1
X1-6 F2
3.15A
F1 X1-2
5A
SYSTEM PUMP SYSTEM PUMP
RELAY
RELAY
X1-3
DHW PUMP
DHW PUMP
RELAY
RELAY
X1-4
BOILER PUMP BOILER PUMP
RELAY
F3 RELAY
.8A
24V DC
X4-3 SUPPLY
X5-9
X5-1
120 VAC
3.5A
24 VAC
CONNECTION BOARD
CN5-5
FLOW
SWITCH
13 13
1
HEAT/LOOP
DEMAND
19
21
2
HEAT/LOOP
DEMAND
17
19
3
HEAT/LOOP
DEMAND
15
17
TANK
THERMOSTAT
13
15
15
LOW GAS HIGH GAS
PRESSURE PRESSURE
SWITCH SWITCH
12 10
CONXUS
DU BIC
RIBBON CABLE
X5-6
S2
INLET
SENSOR
X5-4
S1a
OPERATING
1
SENSOR
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
1 X4-7
ALARM
CONTACTS
2 CN5-9 X4-14
CN5-2 X4-6
3
RUN-TIME
CONTACTS
CN5-9
X4-13
4
S6 CN6 X6
23
24 CN6 X6
S5 25 CN6 X6
26
S7 CN6 X6
27
28 CN6 X6
S4
29 29 CN6 X6
30 CN6 X6
31
CN6
32 X6
A
CN6 X6
33
B
CN6 X6
34
+ 35 CN6 X6
0-10V
-
CN6 X6
IN 36
CN6
+ X6
37
0-10V
IN
- CN6
38 X6
CN6 X6
+ 39
0-10V
-
40 CN6 X6
+ CN6 X6
41
0-10V
-
42
M
43
O
44 CN8-1 X6-1 X4-1
A
D
CN8-2 X6-2 B X4-2
45
B
U
46 CN8-3 X6-3 X4-3
S
Manuel d'installation et de fonctionnement
NEUTRAL
TERMINAL STRIP
120V SUPPLY "N"
L
IN
GROUND
2
3
BLOWER
RELAY
RELAY BOARD
J3-6
LWCO LWCO
BOARD BOARD
J3-5
CN5-15
TEST
LWCO
14
J3-3
SWITCH
PROBE
J2-1
LWCO RESET
J2-2
22
20
18
18
16
RECIRC PUMP
5
RELAY COIL
24VAC 6
6
11 11
9
LOUVER
7
RELAY COIL
INTEGRATED
24VAC 8
CONTROL
LOUVER
9
PROVING SWITCH
X7
X7
10
BLOCKED
DRAIN 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
INTEGRATED
CONTROL
J3-4
X4-8
J3-2
X4-12
CN5-7 X4-1
CN5-6 X4-9
CN5-14
X4-2
CN5-13 X4-10
CN5-16
X5-3
CN5-11
X4-11
CN5-3 X4-5
DAMPER RELAY
FLUE DAMPER
2 1
M
3
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
LBL20427 REV C
79