Honeywell RTH6500, User Manual, Page: 9 / 56

7
69-2715EF—07
Installing your thermostat
Alternate wiring (heat pump system only)
Use this if your wire labels don’t match the terminal labels.
Note:
You must have
a C wire or equivalent.
See page 6.
MCR33886
E AUX
X W F H
B
W1
W2
X2
L O G
F
C
R
VR M
V Y1
B
X
R Y RC
HEAT PUMP
AUX/E
G O/B
Y R RC K L
C
1
2
3
4
7
6 5 4
Alternate wiring key (heat pump system only)
Do not use K terminal. For future use.
If old thermostat has separate wires on AUX and E , place both wires into the E/AUX terminal. If
old thermostat has wire on AUX with a jumper to E , place wire on E/AUX terminal. No jumper is
required.
If your old thermostat had an O wire and not a B wire, attach the O wire to the O/B terminal.
If your old thermostat had separate O and B wires, attach the B wire to the C terminal. If
another wire is attached to the
C
terminal, check wifithermostat.com for help. Attach the
O
wire
to the O/B terminal.
If your old thermostat had separate Y1 , W1 and W2 wires, check wifithermostat.com for help.
If your old thermostat had both V and VR wires, check wifithermostat.com for help.
Leave metal jumper between R and RC terminals in place.
2
3
1
4
5
6
7