Lennox LDT Series Information page 46

A55
MAIN CTRL
6 1 2 7 3 8 4 9 5 10
J393
P393
1 P433
6 1
1 MODBUS
CABLE
5
P229 P434
P406
J406
5 1 2 6 3 7 4 8
A3
DSI CTRL 1
1 2 3 4 1 2
J407 J410
P407 P410
1 2
WHT
P216
1 2
5 6 3 2 1 4
J408
P408
1 2 3 4 5
J15
P15
WB−016
SHT 1 − CC06
WHT
BLK
RED
600V
230V
PNK
FROM F10 T1 LOAD, WB−005
B−SECT LOC NN07
WB−004
PNK
YEL
FROM F10 T2 LOAD, WB−006
B−SECT LOC NN07
WB−007
YEL
Model: LGT, LDT Series RTU − Gas Heat
Input Heat Capacity 169k − 480k Btuh
Voltage: 575V/3~/60Hz (J)
Supersedes:N/A Form No:
GAS HEAT DIAGRAM
LOW TEMP VEST HTR LOW TEMP VEST HTR
MODBUS
BURNER 1
A G B
1
1 3 2
J413
P413
1 1
P229 P230
2 2
P411
P229 P230
J411
3 3
1 3 2
A G B
MODBUS−1
4 4
P229 P230
1
BRN
A 1
G 3
BLK
B 2 DRNWR
MODBUS CABLE
1 2 3 4
J374 J408
P374 P408
6
WHT−RED
P19
1 2
WB−016
SHT 1 − AA06
WHT
FROM T3
TRANSFORMER
RED
538226−01
Rev: 0
Page 46
A178
BURNER 2
AUX CTRL
5 1 2 6 3 7
J396
P396
1
P433
6 2
2
2
5 2
P230 P434
P406
J406
5 1 2 6
A12
DSI CTRL 2
1 2
J407
P407
3 4
P216
1 2
BRN
A
1
3 G
BLK
2 B
5 6 3 2 1 4
J374
P374
1 2 3 4 5
J28
P28
T 1 3
P21
600V
230V
YEL
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 COOLI N G
SECTI O N SECTI O N SECTI O N
A B
WI R I N G D I A GRAM F LOW
TO P415
B−SECT LOC CC06
4 8
MODBUS
CABLE
P411
J411
1 3 2
3 7 4 8
A B G
MODBUS−1
3 4 1 2
J410
P410
BRN
1 2 3 4
6
WHT−RED
1 2
LOW TEMPERATURE
VESTIBULE HEATER,
BURNER 2
1
1 2
PNK
P228(2) P228(2)
ACCS ACCS
SECTI O N SECTI O N
B3 C D