Grain Systems PNEG-1499 - Manual (Page 12)

12 PNEG-1499 High / Low Thermostat
Thermostat Connection to
HF-7318 Circuit Board
1. Connect power cord to fan control box.
2. Connect the BLACK 120VAC power wire
to terminal 20.
3. Connect the WHITE Neutral wire to
terminal 19.
4. Connect the BLUE Stage 2 Common wire to
terminal 15.
5. Connect the ORANGE Stage 2 N/O wire to
terminal 14.
6. Connect the RED Stage 1 N/O wire to
terminal 13.
7. Connect the GREEN Stage 1 Common wire to
terminal 12.
ELECTRICAL CONNECTION