
Form No. 43539470
Oct 2019 A
–14–
INTERNAL CONNECTION WIRING DIAGRAM – DSI SYSTEM
Module Terminal Designations - DSI
S1
Flame sensor
GND
24Vac transformer ground to module
V2
24Vac transformer ground to Gas valve
24 VAC
24Vac supply to module
L1 (HOT)
230Vac supply to module
IND
230Vac supply to blower motor
V1
Gas valve output 24Vac
PSW
Sail switch return 24Vac
TH
24Vac supply to module
SPARK
DSI igniter