Orbit 83521 - Thermostat Installation

10 11
CAUTION: Stripping too much insulation from the end of a wire creates the
potential for shorting between wires and could prevent proper function of the thermostat.
INSTALLINGYOURTHERMOSTATINSTALLINGYOURTHERMOSTAT
Wire Installation for Heat Pump Systems
a. Loosen the screws on each terminal.
b. Insert jumper wire into the Y and W
terminals.
c. Insert each labeled wire into the matching
terminal and tighten the screws.
d. Wrap exposed areas of any unused wire
with electrical tape.

Wire Installation
for Conventional Systems
a. Loosen the screws on each terminal.
Note: Remove jumper wire if you have both
R and RC wires.
b. Insert each labeled wire into the matching
terminal and tighten the screws.
c. Wrap exposed areas of any unused wire
with electrical tape.
d. Continue to page 12.
R
O
G
W
R
W
Y
O
G
screw screw
labeled
wire
labeled
wire
/"
9.5 mm
Note: Expose 3/8" of each wire for proper installation.
RR RCRC WW YY GG O/BO/B
jump wire
jump wire