Robertshaw RS9210 User manual

R S 9210
Installation Manual

Thermostat System Types
Thank you for purchasing a Robertshaw®thermostat. This manual will describe how to
install and test the Robertshaw RS9210 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
Table of Contents Page
Installation Location 2
Thermostat Quick Reference 3
Wallplate Installation 4
Wiring 5-12
Installer Setup Menu 13-17
Mounting & Battery Installation 18
Programming 19-22
Specications 23
Power Options
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.
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
THERMOSTAT QUICK REFERENCE
3
Mon
Room
Menu
Set At
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 RETURN
Cool Swing
Room
LEAVE
Hold
SLEEP
PM
Filter
Set At
Displays the user
selected 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 ashing,
there is a
5-minute
delay for
compressor
protection.
System
Operation
Indicators:
The , or
icon will display
when the COOL,
HEAT, or (fan)
is on.
AM
FAN
AUTO COOLON
OFF HEAT
EMH
1
1
4
2
5
3
6

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
2 Remove Old Thermostat
or
Heating/cooling system
power switch
Circuit breaker
box
Remove old thermostat but leave wallplate with wires attached.
Do not remove wallplate
Terminal
designation

WIRING
6
ELEC
GAS
3 Label Wires with Tags
Label the 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 W/E W/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
Wire Labels
Terminal designation

WIRING
7
5 Mount Wallplate for 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

WIRING
8
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

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 there is a Cor Xwire 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 either the Oor B, not both.
Ifyou do not have a heat pump, do not connect Oor 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.
WIRING
9
or or or or or

Terminal Designations
Heat Pump System
1 HEAT 1 COOL / 2 HEAT 1 COOL
Conventional System
1 HEAT 1 COOL / 2 HEAT 1 COOL
Transformer Power Transformer Power
Transformer Common
Reversing Valve
Energized in HEAT
Reversing Valve
Energized in COOL
Fan Relay
First Stage of Emergency
HEAT
Second Stage of HEAT/
EMERGENCY HEAT
First Stage of HEAT
First Stage of COOL
First Stage of
HEAT and COOL
Second Stage of HEAT
Fan Relay
Energized in HEAT
Energized in COOL
Transformer Common
WIRING
10
Installation Tip:
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/Ibs.

4
3
2
1
2H/1C Heat Pump System
COMPRESSOR
RELAY
FAN RELAY
COOL REVERSING
VALVE
HEAT REVERSING
VALVE
AUXILIARY
L1(HOT)
L2
Note: In many systems
with no emergency heat
relay a jumper can be
used between E and W2.
WIRING
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).

Typical 2H/1C Heat Pump System with separate emergency heat
Conventional System 1H/1C, 2H/1C (Heat pump set to OFF in tech settings)
COMPRESSOR
RELAY
EMERGENCY
RELAY
FAN RELAY
COOL REVERSING
VALVE
HEAT REVERSING
VALVE
AUXILIARY
L1(HOT)
L2
COMPRESSOR
RELAY
FAN RELAY
HEAT RELAY
HEAT
RELAY 2
L1(HOT)
L2 Note: This
thermostat is only
compatible with
ONE transformer
systems.
WIRING
12

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 on page 14.
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.
INSTALLER SETUP MENU
13

INSTALLER SETUP MENU
14
Settings Display Adjustment Options Default
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.
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.
The installer can select the
minimum run time for the
compressor to help protect the
compressor from short-cycling.
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 runtime.
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).
OFF
OFF
0
Next step
Prev step
Next step
Prev step
Next step
Prev step

INSTALLER SETUP MENU
15
Settings Display Adjustment Options Default
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.
The cooling differential is factory
preset at 0.5°. This means that
whenever the room temperature
heats by 0.5° from the temperatur e
setting, the cooling system will
turn on. If the cooling system
turns on too often, increase the
temperature differential.
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.
The compressor short
cycle delay setting can be
removed by selecting OFF.
ON
0.5
0.4
Prev step
Prev step
Prev step
Next step
Next step
Next step
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.

INSTALLER SETUP MENU
16
Settings Display Adjustment Options Default
F or C
12 or 24
Hour
Clock
Fan
Operation
Select F for Fahrenheit
temperature display or select
C for Celsius display.
Select a 12 or 24 hour
clock setting.
Select GAS or ELEC
depending on the type
of furnace.
Use and to
select 12 or 24 hour clock.
GAS - GS
or
ELEC - EL
F for Fahrenheit
C for Celsius
Prev step
Prev step
Next step
Next step
Prev step
Next step
F
12
GAS

INSTALLER SETUP MENU
17
Settings Display Adjustment Options Default
Program
Options 5d
This thermostat can be congured
to have 7 Day, 5+1+1 programming
or be non-programmable.
If 7 Day is selected, in Set Time
all seven days will need to be
programmed individually.
If 5+1+1 programming is selected,
in Set Time Monday–Friday will
be programmed together and
Saturday and Sunday will need to
be programmed individually.
If 0d is selected, the thermostat
becomes non-programmable.
Use and
to select 7d for 7 Day,
5d for 5+1+1, or Od for
non-programmable.
Prev step
Next step

Mounting Thermostat
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.
Battery Installation
Battery installation is optional if used with AC power (the C terminal is connected).
During power outages, the batteries will save settings and power the display.
MOUNTING & BATTERY INSTALLATION
18
Insert 2 AAA
Alkaline batteries.
Mon
FAN
AUTO COOLON
HEAT
EMH
OFF
Menu
SLEEP
Set At
Room