PG
1
Install Guide CT80
• The thermostat is a precise instrument, handle with care.
• Turn off electricity to the HVAC system before installing
or servicing thermostat or any part of the system.
• Do not turn electricity back on until work is completed.
• Do not short (jumper) across electric terminals at the
control on the furnace or air conditioner to test the
system. This may damage the thermostat.
• All wiring must conform to local codes and ordinances.
• This thermostat is designed for use with 24VAC and
millivolt systems (with a separate 24VAC power adapter).
• The thermostat relay load should be limited to 1.0 amp;
higher amperage may cause damage to the thermostat.
To avoid electrical shock and to prevent damage to the
furnace, air conditioner, and thermostat, disconnect the
power supply before beginning work. This can be done at
the circuit breaker, or at the HVAC system.
Caution
ENGLISH
Caution
Save
Energy
button
Power Grid
status
indicator
top cover
Touch screen
Wire
terminals
RC-RH
�
Connect Switch
Increase
temp
button
Home
button
Mode
button
Lower
temp
MENU
button
Reset
button
bottom
cover
statu
HVAC
Filter
s
status
FAN
HEAT
CHECK
FILTER
SAVE
ENERGY
COOL
pn812-003-002 b2
button
