Robertshaw RS8110 User manual

R S 8110
Installation Manual

Thermostat System Types
Thank you for purchasing a Robertshaw®thermostat.
This manual will describe how to install and test the Robertshaw RS8110 thermostat.
Battery Power
Hardwire (Common Wire)
Gas, Oil, or Electric Heat with Air Conditioning
Heat Pumps (without auxiliary or emergency heat)
Heat-Only, including for Floor and Wall-Furnace
Cool-Only
750 Millivolt Heating Systems
Table of Contents Page
Power Options
Installation Location 2
Thermostat Quick Reference 3
Wallplate Installation 4
Wiring 5-12
Installer Setup Menu 13-14
Mounting and Battery Installation 15
Specications 16
IMPORTANT SAFETY INFORMATION WARNING:
• Always turn off power at the main power source by
unscrewing fuse or switching circuit breaker to the
off position before installing, removing, cleaning, or
servicing thermostat.
• Read all of the information in this manual before
installing or programming this thermostat.
• This is a 24V AC low voltage thermostat. Do not
install on voltages higher than 30V AC.
• All wiring must conform to local and national
building and electrical codes and ordinances.
• Do not short (jumper) across terminals on the gas
valve or at the system control to test installation.
This will damage the thermostat and void the warranty.
INSTALLATION MANUAL
1

Install the thermostat 4 to 5 feet above the oor in an area with good air circulation and average temperature.
For new installations, mount thermostat on an inside wall, 4-5 feet above the oor.
Do not install the thermostat in the following locations:
• Behind a Door
• In a Corner
• Near Air Vents
• In Direct Sunlight
• With an Outside Wall Behind the Thermostat
• Near any Heat or Steam Generating Fixtures
• Near any Concealed Pipes or Chimneys
Installation at these locations will affect thermostat operation.
INSTALLATION LOCATION
2

Getting to know your thermostat
1LCD Display
2Fan Switch
3System Switch
4Temperature Set-Point Buttons
5Easy change battery door
Displays the user selected
set-point temperature.
NOTE: If these icons are ashing,
there is a 5-minute delay for
compressor protection.
System operation indicators: The
COOL, HEAT or FAN icon will
display when the COOL, HEAT or
FAN is on.
Low Battery Indicator:
Replace batteries when
Indicator is shown.
a LCD
Indicates the current
room temperature.
Cool
HEAT
SYSTEM
FAN
AUTO
ON
Room Set At
COOL OFF
Room Set At
THERMOSTAT QUICK REFERENCE
3

Caution:
Electrical Hazard.
Disconnect power before installing this
product. Failure to do so can cause
electric shock or equipment damage.
For a vertical mount, put screws
on the top and bottom.
For a horizontal mount, put
screws on the left and the right.
Mercury Notice:
This product is mercury-free. However,
if this product is replacing a control
which contains mercury, it needs to be
disposed of properly. Contact your
local waste management authority for
instructions regarding recycling and
proper disposal of the control.
Vertical mount
Horizontal mount
Vertical mount
Horizontal mount
WALLPLATE INSTALLATION
4

1 Turn Off Power to Heating/Cooling System
2 Remove Old Thermostat
Remove old thermostat but leave wallplate with wires attached.
Do not remove wallplate yet
Terminal
designation
Circuit breaker
box
Heating/cooling system
power switch
or
WIRING
5

Terminal designation
Wire Labels
3 Label Wires with Tags
Label the wires using the supplied wire labels as
you disconnect them.
4 Separate Wallplate from New Thermostat
Remove wallplate from the new thermostat and
mount onto wall.
Wiring Labels
Apply these wiring labels to each wire with the
appropriate terminal designation as you remove it from
the existing thermostat.
B B Y2 Y2 C C E E F F
G G H H L L O O P P
R R RC RC RH RH T T U U
VNR VNR W W W1 W1 W2 W2 W3 W3
X X X1 X1 X2 X2 Y Y Y1 Y1
AUX AUX
Wallplate
ELEC
GAS
WIRING
6

Drill 3/16-in. holes for drywall
Drill 3/16-in. holes for plaster
5 Separate Wallplate from New Thermostat
Mount the new wallplate using the included screws and anchors.
G
E
Y
RH/R
WIRING
7

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).
Remove metal jumper
if you haveboth R and
RC wires
Screw
Insert wires and tighten
screws
WIRING
8