Robertshaw RS8110 User manual

R S 8110
Operation Manual

Table of Contents Page
Table of Contents 1
Thermostat Operation 2-3
Thermostat Quick Reference 4-6
Adjusting the Temperature
Differential/Swing 7
Calibration Setting 8
Terminal Designations 9
RS8110
Do not switch system
to cool if the temperature
is below 50°F (10°C).
This can damage the air
conditioning system and
cause personal injury.
Caution
1

1LCD Display
2Fan Switch
3System Switch
4Temperature Set-Point Buttons
5Easy change battery door
Cool
HEAT
SYSTEM
FAN
AUTO
ON
Room Set At
COOL OFF
THERMOSTAT OPERATION
2

1LCD Screen
See page 6 for detailed information.
2Fan Switch
Select ON or AUTO. ON will run the fan continuously. AUTO will turn the
fan on only in a call for heating or cooling.
3System Switch
Select HEAT or COOL for your HVAC system. Selecting HEAT turns on
the heat mode. Selecting COOL turns on the cool mode. Selecting OFF
turns both heating and cooling off.
4Temperature Set-Point Buttons
Press the +or
-
to select the desired temperature.
5Easy change battery door
See page 4 for details.
THERMOSTAT OPERATION
3

Install two AAA
Alkaline batteries
into battery
compartment.
Be sure to match
positive (+) ends
of batteries
with positive (+)
battery terminals
in the battery
compartment.
Battery Door Information
Press the lower portion
of the thermostat to
open the easy access
battery door.
1.5V AAA 1.5V AAA
THERMOSTAT QUICK REFERENCE
4

When the low battery icon appears replace your
2xAAA batteries immediately. Failure to do so may result
in your heating and cooling system becoming inoperable.
Freezing or overheating can occur.
Caution:
THERMOSTAT QUICK REFERENCE
5

Low Battery
Indicator:
Replace batteries
when indicator is
shown.
NOTE: If these icons
are ashing, there is
a 5-minute delay for
compressor protection.
The ,
or icon will display
when the COOL, HEAT
or FAN is on.
System Operation
Indicators:
Room Temperature:
Indicates the current
room temperature.
Room Set At
Set-Point Temperature:
Displays the user selected
set-point temperature.
THERMOSTAT QUICK REFERENCE
6

COOLING DIFFERENTIAL OR SWING.
The cooling differential is factory preset at 0.5°. This means that whenever
the room temperature heats by 0.5° from the temperature setting, the cooling
system will turn on. If the cooling system turns on too often, increase the
temperature differential. To access the COOL SWING setting and adjust the
cooling differential, select COOL and hold down +and
-
together for
3 seconds. Use +and
-
to adjust the cooling differential from between 0.2°F
and 2°F. Wait approximately 15 seconds or toggle the system switch to
return to normal operation.
HEATING DIFFERENTIAL OR SWING.
The heating differential is factory preset at 0.4°. This means that whenever
the room temperature cools by 0.4° from the temperature setting, the heating
system will turn on. If the heating system turns on too often, increase the
temperature differential. To access the HEAT SWING setting and adjust the
heating differential, select HEAT and hold down +and
-
together for
3 seconds. Use +and
-
to adjust the heating differential from between 0.2°F
and 2°F. Wait approximately 15 seconds or toggle the system switch to
return to normal operation.
7
ADJUSTING THE TEMPERATURE DIFFERENTIAL

To access the CALIBRATION setting and adjust the temperature, select OFF
and hold down +and
-
together for 3 seconds. Use +and
-
to adjust the
temperature from between -4°F and +4°F.
Press
-
to select F (Fahrenheit) or C (Celsius), and press +to select the
temperature scale.
Then press
-
to access the compressor short cycle DELAY setting. If the
compressor short cycle delay setting is ON, the compressor cannot be
turned on for at least 3 minutes after it was last turned off. Use +and
-
to adjust the compressor short cycle delay setting to ON or OFF. Wait
approximately 15 seconds or toggle the system switch to return to
normal operation.
CALIBRATION SETTING
8