Install Instructions
Table Of Contents
- THBF721 PG. 1-min
- THBF721 PG. 2-min
- THBF721 PG. 3-min
- THBF721 PG. 4-min
- THBF721 PG. 5-min
- THBF721 PG. 6-min
- THBF721 PG. 7-min
- THBF721 PG. 8-min
- THBF721 PG. 9-min
- THBF721 PG. 10-min
- THBF721 PG. 11-min
- THBF721 PG. 12-min
- THBF721 PG. 13-min
- THBF721 PG. 14-min
- THBF721 PG. 15-min
- THBF721 PG. 16-min
- THBF721 PG. 17-min
- THBF721 PG. 18-min
WIRING
If the labels do not match letters on the thermostat, refer to the chart below and connect the terminal
accordingly (see notes below).
•
0
y
R
If a C or
X
wire is available, connect with the C terminal. If there is no C or
X
wire, there is no
need to connect with C terminal.
If you have a heat pump without auxiliary/backup, connect
O
OR
B
.
D
o not connect both. If
you do not have a heat pump, do not connect
B
. Wrap bare end of wire with electrical tape.
Place a jumper (piece of wire) between
Y
and W if you are using a heat pump without
auxiliary/backup heat.