Schéma De Câblage - Lochinvar Knight 81 Manuel D'installation

13
Schémas
Figure 13-2 Schéma de câblage
ALARM
CONTACTS
RUN-TIME
CONTACTS
24 VAC LOUVER
RELAY COIL
LOUVER
PROVING SWITCH
GAS PRESSURE
SWITCH
FLOW
SWITCH
TANK
THERMOSTAT
HEAT/LOOP
3
DEMAND
HEAT/LOOP
2
DEMAND
HEAT/LOOP
1
DEMAND
SYSTEM
SENSOR
OUTDOOR
SENSOR
TANK
SENSOR
SHIELD
A
CASCADE
B
SHIELD
+
BMS
0-10V
-
IN
SYS PUMP +
0-10V
-
IN
+
BLR PUMP
0-10V
-
OUT
+
RATE
0-10V
-
OUT
SHIELD
MODBUS
A
OPTION
B
SHIELD
24 VAC
LOW
WATER
CUT-OFF
SHIELD
GROUNDING
JUMPER
Notes:
1. All wiring must be installed in accordance with: local, state, provincial and national code requirements per either N.E.C. in USA or C.S.A. in Canada.
2. If any original equipment wire as supplied with the appliance must be replaced, it must be replaced with wire having same wire gauge (AWG) and rated for a
minimum of 105° C. Exceptions: Replacement high vo ltage spark lead and ribbon cables must be purchased from the factory. Use of a non-approved spark lead
or ribbon cables can lead to operational problems which could result in non-repairable damage to the integrated controller or other components.
3. Actual connector block locations may vary from those shown on diagrams. Refer to actual components for proper connector block locations when using
diagrams to troubleshoot unit.
(suite)
CONNECTION BOARD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
CN7-1
COM
CN7-2
CN7-3
CN7-4
MODBUS BOARD
MTR-01
X5-1
X5-2
Manuel d'installation et de fonctionnement
LOW VOLTAGE
120 VAC
HIGH VOLTAGE
INTEGRATED
CONTROL
X-7 X1-3
X1-4
X4-7 X1-2
CN5-1
BK
CN5-8 BK X4-14
BK X4-6
CN5-2
BK
CN5-9 X4-13
CN5-3 BK X4-5
X4-12
CN5-10
BK
CN5-11 BK X4-11
BK X4-4
CN5-4
X1-6
BK
CN5-5 X4-3 X1-5
BK X4-8
CN5-14
X4-10
CN5-12
BK
CN5-6 BK X4-2
BK X4-9
CN5-13
X1-8
BK
CN5-7 X4-1
X1-1
X5-7
X5-16
CN6
X6
X5-8
X5-15
X5-9
X5-1
X5-2
X5-10
X5-11
X5-4
X5-12
X5-6
X5-5
X5-13
R BLG
X5-14
X2-2
X4-1 O X9-1
X2-1
GY
X4-2 X9-2
X4-3 G X9-3
X1-7
X4-4 X9-4
TR2
BK
X1-1
W
X1-2
X1-3 G
BOX DEPICTS
OPTIONAL ITEMS
BOX DEPICTS
DUAL SENSOR
SINGLE HOUSING
JUNCTION
BOX
OR L
N
W
L
BR
N
W
L
PR
N
W
KB ONLY
ON/OFF
SWITCH
L
BK
N
W
G
R
TRANSFORMER
R W G
1 2 3
BLOWER
1 2 3 4 5
R
T
W
BK
Y
BL
KB 286 ONLY
O
O-TEMP DOOR TEMP
HEX SW
BLOCKED DRAIN SWITCH
P
O/BK
AIR PRESSURE SWITCH
-T
R/BK OPERATING SENSOR S1a
-T
HIGH LIMIT SENSOR S1b
GY
-T
INLET SENSOR S2
P/BK
-T
W/BK FLUE SENSOR S3a
-T
PR FLUE SENSOR S3b
Y
BK
GAS VALVE
@24VAC
Y
W/R FLAME SENSOR
G
SPARK
ROD
CAUTION HIGH VOLTAGE SPARK LEAD
BOX DEPICTS
OPTIONAL
ITEMS
DHW
G
PUMP
BOILER
G
PUMP
SYSTEM
G
PUMP
L
120V
GND
SUPPLY
N
SW
WIRING DIAGRAM
LBL20398 REV A
79