Hunter 40170 Installation And Operation Manual page 32

3-wire Heat Only System 3-wire Heat Only System
Jumper Jumper
Rc Rc
G G
Rh W Rh W
X X
Heat 24V Heat 24V
Fan Fan
Relay Relay Supply Supply
3-wire Cool Only System 3-wire Cool Only System
Jumper Jumper
Rc Rc
G G
Rh Rh
X X
Cool 24V Cool 24V
Fan Fan
Relay Relay
Supply Supply
2
Heat Relay Heat Relay
or Valve or Valve
Y Y
Cool Cool
Contacter Contacter