Robertshaw RS5220C User Manual page 10

CHECK = Timer to remind the home owner to maintain the filter. Default
setting is off. The timer runs when the system is on. It can be
set at 0 (OFF) or up to 9900 hours. When the time expires
CHECK FLTR is displayed. Press the
restart the filter timer.
CYCL = Cycle Timer allows a compressor to rest between cycles. Can be
set from 0 to 5 minutes in 1 min increments.
WARNING: A wrong short cycle setting can
damage your equipment. This should only
be changed by a trained HVAC professional.
CAL = Calibration offset. Changes the displayed temperature from the
actual temperature by +3 to -3 degrees in one degree increments.
Increasing the offset by +2 will cause the thermostat to display a
temperature that is 2 degrees higher than the actual room
temperature
Creating a Password – Protect the Settings
The buttons on the front of the thermostat can be locked with a password.
To create a password:
1. Press the
for 5 seconds.
You will be asked for a 4 digit password.
2. Each digit is set using the
move to the next digit. Press
3. The password is saved after 5 seconds.
All of the front buttons are now locked out until the password is entered.
Pressing any button will cause
To unlock the buttons:
1. Push and hold the
request for password is displayed.
and buttons at the same time and hold them in
to flash.
and
and
and buttons. Press the
to move back.
buttons for 5 seconds until the
10
buttons to
to