Robertshaw RS8210 User manual

RS8210
Installation Manual

INSTALLATION MANUAL
Thermostat System Types
Table of Contents Page
Thank you for purchasing a Robertshaw®thermostat.
This manual will describe how to install and test the Robertshaw RS8210 thermostat.
Gas, Oil, or Electric Heat with Air Conditioning
Heat Pumps (with or without auxiliary or emergency heat)
Multi-Stage Systems
Heat-Only, including for Floor and Wall-Furnace
Cool-Only
750 Millivolt Heating Systems
Installation Location 2
Thermostat Quick Reference 3
Wallplate Installation 4
Wiring 5-12
Installer Setup Menu 13-16
Mounting & Battery Installation 17
Programming 18
Specications 19
Power Type
Battery Power
Hardwire (Common Wire)
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.
1

INSTALLATION LOCATION
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.
2

Getting to know your thermostat
THERMOSTAT QUICK REFERENCE
3
AM
PM
Set At
Mon
Room
Menu
SLEEP
LCD Screen
Fan Switch
System Switch
Temperature Set-Point Buttons
User Buttons
Easy Change Battery Door
Tech Set Sun Mon Tue Wed Thu Fri Sat
Next
Step
Min Com On
Com DelayHeat
Set Time
Run Sched
Set Sched
Hold
Prev Step
Menu
Done WAKE
Cool Swing
Room
LEAVE RETURN
Hold
SLEEP
PM
Filter
Set At
Displays the user
selectable set-point
temperature.
Days of the week
and time.
Indicates the
current room
temperature.
Programmable Time
Periods:
This thermostat has 4
programmable time periods
per day.
Button Options
LCD
Hold: Is
displayed when
thermostat
program is
overridden.
Low Battery
Indicator:
Replace batteries
when indicator is
shown.
NOTE: If these icons
are flashing, there
is a 5-minute delay
for compressor
protection.
System Operation
Indicators:
The
AM
PM
Set At
,
AM
PM
Set At
or
AM
PM
Set At
icon will display
when the COOL,
HEAT, or
AM
PM
Set At
(fan)
is on.
AM
FAN
AUTO COOL ON
OFF HEAT
1
1
4
2
3
5
6
EMH

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.
Caution:
Electrical Hazard
Disconnect power before
installing this product.
Failure to do so can cause
electric shock or equipment
damage.
WALLPLATE INSTALLATION
4
For a vertical mount,
put screws on the top
and bottom.
For a horizontal mount,
put screws on the
left and the right.
Vertical mount
Vertical mount
Horizontal mount
Horizontal mount

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

6
WIRING
6
3 Label Wires with Tags
Label the existing wires using the supplied
wire labels as you disconnect them.
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
G
R
V/VR
X
AUX
G
R
V/VR
X
AUX
H
RC
W
X1
H
RC
W
X1
C C E E F F
L L O O P P
RH RH T T U U
W1 W1 W2 W2 W3 W3
X2 X2 Y Y Y1 Y1
4 Separate Wallplate from
New Thermostat
Remove wallplate from the new thermostat
and mount onto wall.
Wallplate
ELEC
GAS
Wire Labels
Terminal designation

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

WIRING
8
C
O
B
E
Y
G
RH/R
W2
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).
Screw
Insert wires and
tighten screws

WIRING
9
Alternate Wiring (Conventional Systems)
If labels do not match letters on the thermostat, check the chart below and connect to terminal as
shown here (See notes, below).
If Cor Xwire is available then you can connect with Cterminal. If there is no Cor
Xwire then no need to connect with C terminal.
If you have a heat pump without auxiliary/backup heat connect Oor 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 Yand Wif you are using a heat pump without
auxiliary/backup heat.
G
COB
YRH/R
C O B Y G
RH/R
or
X
or
Y1
M
or
F
or
RH
4
V
W2
W2
E
E
or
W1
H
or or or or

WIRING
10
Installation Note:
Do not overtighten terminal block screws, as this can damage the terminal block.
A damaged terminal block can keep the thermostat from tting on the subbase
correctly or cause system operation issues. Max Torque = 6in/lbs.
Terminal Designations
Heat Pump System
1 HEAT 1 COOL / 2 HEAT 1 COOL
Conventional System
1 HEAT 1 COOL / 2 HEAT 1 COOL
RH/R Transformer power Transformer Power
CTransformer Common Transformer Common
BReversing Valve
Energized in HEAT Energized in HEAT
0Reversing Valve
Energized in COOL Energized in COOL
GFan Relay Fan Relay
W/E First Stage of Emergency HEAT First Stage of HEAT
W2 Second Stage of HEAT/
EMERGENCY HEAT Second Stage of HEAT
YFirst Stage of HEAT and COOL First Stage of COOL

WIRING
Note: In many systems
with no emergency heat
a relay jumper can be
usedbetween E and W2.
(HOT)
COOL REVERSING
VALVE
HEAT REVERSING
VALVE
AUXILIARY
FAN RELAY
COMPRESSOR
RELAY
11
Power supply.
Use either O or B terminals for reversing valve.
Optional 24 VAC common connection when thermostat is used in battery power mode.
Jumper (not supplied).
2H/1C Heat Pump System

WIRING
Note: This
thermostat is only
compatible with
ONE transformer
systems.
COOL REVERSING
VALVE
HEAT REVERSING
VALVE
AUXILIARY
FAN RELAY
HEAT RELAY
HEAT RELAY 2
FAN RELAY
EMERGENCY
RELAY
(HOT)
(HOT)
COMPRESSOR
RELAY
COMPRESSOR
RELAY
Typical 2H/1C Heat Pump System with separate emergency heat
Conventional System 1H/1C, 2H/1C (Heat pump set to OFF in tech settings)
12

INSTALLER SETUP MENU
Installer Setup Menu
This thermostat has an installer setup
menu for easy conguration. Follow the
procedure below to set up the thermostat to
match the specic heating/cooling system.
1. Press MENU.
2. Press and hold TECH SET for 3 seconds.
3. Congure the installer options as
desired using the table below.
Use or to change settings
and NEW STEP or PREV STEP to move
from one option to another. Note: Only
press DONE when you want to exit the
Installer Setup options.
4. °F/°C Selection Setting: F(Fahrenheit) or C(Celsius).
5. 24H/12H Selection: Setting the 24 hour or 12 hour time format.
6. ELEC/GAS Selection: Select the ELEC or GAS.
13

Filter
Set At
14
Feature Feature Description Display Adjustment Options Factorydefault
settings
Filter
Change
Reminder
Room
Temperature
Calibration
Minimum
Compressor
On-Time
This setting will ash FILT in the
display after the elapsed run time
to remind the user to change the
lter. The OFF setting will disable
this feature.
Next Step
Prev Step
Done
This setting allows the installer
to change the calibration of the
room temperature display so
that, for example, the thermostat
would read 72°F instead of 70°F.
Next Step
Prev Step
Done
The installer can select the
minimum run time for the
compressor to help protect the
compressor from short-cycling.
Next Step
Filter
The lter change reminder
can be adjusted from OFF
to 2000 hours in 50 hour
increments. Press the second
button from the top left side of
the thermostat to display the
current lter elapsed run time.
Set At
Min Com On
Prev Step
Done
The room temperature display
can be adjusted to read 3°
above or below the factory
calibrated temperature.
The minimum compressor run
time can be adjusted from OFF
to 3, 4, or 5 minutes. If 3, 4, or
5 is selected, the compressor
will run for at least the
selected time before turning off
(although the fan may continue
to run for a short time).
INSTALLER SETUP MENU

15
INSTALLER SETUP MENU
Feature Feature Description Display Adjustment Options
Factorydef ault
settings
Compressor
Short Cycle
Delay
Cooling
Differential
Heating
Differential
The compressor short cycle
delay setting will not allow the
compressor to be turned on
for 5 minutes after it was last
turned off in order to protect
the compressor.
Next Step
Com Delay
Prev Step
Done
The cooling differential is factory
preset at 0.5°. This means that
whenever the room temperature
heats by 0.5° full degree from
the temperature setting, the
cooling system will turn on.
If the cooling system turns
on too often, increase the
temperature differential.
Next Step
Cool Swing
Prev Step
Done
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.
Next
Step Heat
Swing
Prev Step
Done
The compressor short cycle
delay setting can be removed
by selecting OFF.
The cooling differential setting
is adjustable from 0.2°F to 2°F.
The heating differential setting
is adjustable from 0.2°F to 2°F.

Settings Display Adjustment Options Default
16
F or C
12 or 24
Hour Clock
Fan
Operation
Next Step
Select F for Fahrenheit
temperature display or select
C for Celsius display. Prev Step
Done
Select GAS or ELEC depending
on the type of furnace.
Room
Next Step
Prev Step
Done
F for Fahrenheit, C for Celsius
Use the + or - key to select 12
or 24hour clock.
GAS or ELEC
12 Hour
Clock
INSTALLER SETUP MENU
Next Step
Prev Step
Done
Select a 12 or 24 hour
clock setting.

MOUNT THERMOSTAT & INSTALL BATTERY
Mount Thermostat
Battery Installation
Battery installation is optional if used with AC power (the Cterminal is connected).
During power outages, the batteries will save settings and power the display.
Insert 2 AAA Alkaline
batteries (included).
Align the 4 tabs on the faceplate with
the corresponding slots on the back of
the thermostat, then push gently until
the thermostat snaps into place.
17
FAN
SLEEP
Mon
Set At
Menu
Room
AUTO COOL EMH
HEATOFF
ON

Set Time of Day and Day of Week
1. Press MENU.
2. Press SET TIME.
3. Day of the week will be ashing. Use or to select the current day
of the week.
4. Press NEXT STEP.
5. The current hour will be ashing. Use or to select the current hour.
Note the correct a.m. or p.m. indicator is selected.
6. Press NEXT STEP.
7. The minutes will be ashing. Use or to select the current minutes.
8. Press DONE when completed.
PROGRAMMING
18