Ix-Wiring And Operation Sequence - Lennox LDT Series Information

IX-Wiring Diagrams and Sequence of Operation
A55
MAIN CTRL
6 1 2 7
J393
P393
1
P433
6 1
1
1
5 1
P229 P434
P406
J406
5 1
A3
DSI CTRL 1
1 2 3 4
J407
P407
1 2
WHT
P216
1 2
5 6 3
J408
P408
1 2
J15
P15
WB−005
FROM F10 T1 LOAD,
B−SECT LOC NN07
WB−004
FROM F10 T2 LOAD, WB−006
B−SECT LOC NN07
WB−007
Model: LGT, LDT Series RTU − Gas Heat
Input Heat Capacity 169k − 480k Btuh
Voltage: 208−240V/3~/60Hz (Y), 460V/3~/60Hz (G)
Supersedes: N/A
GAS HEAT DIAGRAM
LOW TEMP VEST HTR
MODBUS
A G B
1
3 8 4 9 5 10 1 3 2
J413
P413
1
P229
MODBUS
CABLE
2
P411
J411 P229
3
2 6 3 7 4 8 1 3 2
A G B
MODBUS−1
1 2
J410
P410 4
P229
BRN
A 1
G 3
BLK
B 2
2 1 4 1 2 3 4
J374
P374
3 4 5 6
WHT−RED
P19 1 2
PNK
PNK
YEL
YEL
538225−01
Form No:
LOW TEMP VEST HTR
A178
BURNER 1 BURNER 2
AUX CTRL
J396
P396
1
1
P433
P230
6 2
5 2
P230 P434
2
P406
P230 J406
3
A12
DSI CTRL 2
4
P230
1
BRN
A
1
3 G
BLK
2 B
DRNWR
MODBUS CABLE
5 6 3 2
J408
P408
1 2 3
J28
P28
LOW TEMPERATURE
VESTIBULE HEATER,
BURNER 1
1
1 2
PNK
P228(1) P228(1)
DENOTES OPTIONAL COMPONENTS AND WIRING
HEATI N G COOLI N G
SECTI O N SECTI O N
A
WI R I N G D I A GRAM F LOW
Rev: 0
Page 45
TO P415
B−SECT LOC CC06
5 1 2 6 3 7 4 8
MODBUS
CABLE
2
2
P411
J411
1 3 2
5 1 2 6 3 7 4 8
A B G
MODBUS−1
1 2 3 4 1 2
J407 J410
P407 P410
3 4
BRN
P216
1 2
1 4 1 2 3 4
J374
P374
4 5 6
WHT−RED
P21 1 2
LOW TEMPERATURE
VESTIBULE HEATER,
BURNER 2
1
1 2
PNK
P228(2) P228(2)
COOLI N G ACCS ACCS
SECTI O N SECTI O N SECTI O N
B B3 C D