Greenheck IGK (472084) - Manual (Page 19)

19 Model IGK Make-Up Air
®
Reference - Control Flow Diagram
Supply and Heat
switches installed?
Supply switch closed?
Heat switch closed?
Stage 1 thermostat closed?
Stage 1 thermostat closed?
Stage 2 thermostat closed?
Stage 2 thermostat closed?
Heating = Stage 2
Heating = Stage 2
Inlet air sensor closed?
Inlet air sensor closed?
Supply Fan = off
Heating = off
Heating = off
Heating = off
Heating = off
Heating = Stage 1
Heating = Stage 1
Heating = off
Heating = off
Supply Fan = on
Power to unit?
Supply Fan = off
Heating = off
Supply Fan = on
No
Yes No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes