Honeywell RTH221B Home 1 Week Programmable Thermostat

Owner’s Manual - Page 6

For RTH221B. Also, The document are for others Honeywell models: RTH2300, RTH221

PDF File Manual, 36 pages, Read Online | Download pdf file

RTH221B photo
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6
Alternate Wiring
If wires will be connected to both R and Rc terminals, remove metal
jumper.
Do not use C or X. Wrap bare end of wire with electrical tape.
If you have a heat pump without auxiliary/backup heat connect O or B,
not 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.
B O G Y
W
NOT
USED
R Rc
M32734
44
7 Install Batteries
Install two AAA alkaline batteries.
Back of thermostat
RTHXXXX
M32707
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