Vine TJ-919E - Page 10

Use the picture you took before as reference to wire, the following chart is a wiring diagram for common systems,
please make sure that a C-wire exists in your old thermostat system.
Terminal
RC
RH
C
G
Y
Y2
W/E
O/B/W2
Conventional System
Power for cooling, 24V
Power for heating, 24V
Common wire, 24V
Fan
Power for cooling, 24V
Power for heating, 24V
Common wire, 24V
Fan
1st Stage Cool
2nd Stage Cool
1st Stage Heat
2nd Stage Heat
1st outdoor Stage Heat
2nd outdoor Stage Heat
1st Stage Auxiliary/Emergency Heat
Changeover (reversing valve)
connection for heat pump
Heat Pump System
09