Robertshaw RS9110 Installation Manual page 10

WIRING
6 Connect Wires
Simply match wire labels.
If labels do not match letters on the thermostat, check "Alternate Wiring (Conventional
Systems)" on page 9 and connect to terminal as shown (see notes, below).
SCREW
8
INSERT WIRES
AND TIGHTEN
SCREWS
Remove metal
jumper if you
have both RH
and RC wires