Robertshaw RS4110 User manual

Thank you for purchasing a Robertshaw RS5000 Series programmable
thermostat. This user’s manual will guide you through the setup of the
RS5110 single stage and the RS5220 two stage thermostats. The
thermostat should already be mounted and correctly wired. The default
settings will enable the thermostat to operate efficiently. Before making
any changes to the schedule read the section on Default Settings.
Features
• Pop-Up Wizard
• Automatic changeover
• Circulating fan
• Worry-Free memory retention
• Easy change battery
• Large back lit display
• Filter change reminder
• Low battery indicator
• Fahrenheit and Celsius displays
• EnergyStar™ compliant
• Dual power
• Adjustable 1st stage temperature differential: 0.5 F degrees to
3.0 F degrees (0.5 C degrees to 1.5 C degrees)
• Accuracy within ±1 F degree
• Universal staging on multi-stage units
• Automatic heating shutdown if temperature exceeds 99°F (37°C)
• Keypad security lockout
• 4 events per day for heating and cooling
• 5-2 day scheduling
• User settable Hi and Lo temperature limits
• Vacation setpoint override
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RS4110
RS5110
RS6110
RS4220
RS5220
RS6220
352-00056-001
USERS MANUAL

Application
The Robertshaw 5000 family of thermostats is designed to control gas,
electric, oil, heat pump, and millivolt heating and electric cooling systems.
The RS5110 is a single stage thermostat while the RS5220 is a two-stage
thermostat.
The RS5000 thermostats use 5-2 programming. This means the 5 weekdays
will operate on one schedule and the 2 weekend days will operate on a
second schedule.
IMPORTANT SAFETY INFORMATION WARNING:
• Always turn off power at main fuse or circuit breaker panel before
installing, removing, cleaning, or servicing thermostat.
• Read all the information in this manual before installing 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.
• Do not connect ground to any terminal in this unit.
• This thermostat is configured with automatic compressor protection
to prevent damage because of short cycling or extended power
outages. Short cycle protection provides a delay between heating
and cooling cycles on heat pumps.
Detailed mounting and wiring instructions are explained in the Installation
Manual
Refer to the Pop-Up Wizard section in the Installation Manual for a
complete list of factory defaults and contractor settings.
Providing Power to the Thermostat
For wiring diagrams refer to the Installation Manual.
The thermostats will operate using 24V AC or two AA batteries. When
the two AA batteries are installed the thermostat will continue to run if the
24V AC fails.
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Installing or Changing the Batteries
To remove the battery compartment gently
squeeze the ribbed edges on both sides.
The battery compartment will pull down from the
thermostat body and will detach. Install two AA
batteries following the polarity as shown inside
the compartment. Place the compartment back
into the thermostat.
When the batteries are low the thermostat will enter a low battery mode.
Low battery mode has two levels.
• LEVEL 1: The low battery icon will be displayed.
The thermostat will continue to operate. Replace
the batteries as soon as possible
• LEVEL 2: The low battery icon will flash. If 24V AC
is present the thermostat will continue to operate
if the batteries are discharged or removed. If 24V
AC is not present the thermostat runs on
batteries only and THE SYSTEM WILL NOT OPERATE.
Replace batteries immediately.
The clock will continue to run for 10 minutes when the batteries are
removed.
Replace batteries if leaving thermostat unattended for more than 30 days.
Display Map
The thermostat display will show information that is being used during
operation or programming. This illustration shows all of the display’s
possibilities with an explanation.
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1. Event names (used for editing schedule).
2. Day is displayed on IDLE screen. Also used to display day ranges
when editing the schedule (e.g., SAT SUN for weekend).
3. Used with clock to display hold duration (e.g., FOR 2h).
4. Displayed when running a schedule.
5. Used with setpoint.
6. Used along with clock for service reminders (e.g., CHECK HP).
7. Used for time, current setpoint, and some configuration data (e.g.,
filter hours).
8. HVAC mode and status. Icons blink when active. A is for Auto, 2 is
for second stage, E is for emergency, is for heating, and is for
cooling.
9. Indicates when security is active.
10. Low battery indicator.
11. Displayed when in vacation hold.
12. Used for ambient temperature and configuration data (e.g., first
stage differential, F or C, etc.).
13. Fan status (rotates when active).
14. Fan use (selected by pressing FAN button).
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3
4
1
6
7
8
9
10
12 11
13
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Set Time and Day
To adjust the time and day settings press the SET TIME button. The hour
will flash. If a button is not pushed within 10 seconds the thermostat
returns to operation. To change the settings:
1. Use the and buttons to change the flashing number.
2. Press the SET TIME button to move through hour, minutes, and day
of week.
3. Make changes as needed. They will be saved automatically.
NOTE: THE THERMOSTAT WILL NOT CORRECT FOR
DAYLIGHT SAVING TIME.
The thermostat will now function properly using the default schedule.
Default Settings
This thermostat is preprogrammed with a schedule that is recommended
by EnergyStar™. The schedule is designed to lower energy costs
year-round.
The default schedule settings are:
User Programmable Settings (Default)
During any program changes the display returns back to the operating
display if a button has not been pushed within 10 seconds.
The temperature scale is set to Fahrenheit.
The night light is off.
The first stage differential is 1F degree.
The second stage differential (RS5220) is 2F degrees.
The auto changeover deadband is 3F degrees.
The filter reminder length is off.
The temperature offset is 0 degrees.
The HI heat limit is 90°F (32°C).
The LO cool limit is 45°F (7°C)
The vacation temperature settings are set at: heating 62°F, cooling 85°F.
The operation mode will be one of the following:
TTiimmeeCCoooolliinngg°°FFHHeeaattiinngg°°FF
Morn 6:00 am 78 70
Day 8:00 am 85 62
Eve 6:00 pm 78 70
Nite 10:00 pm 82 62
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The fan setting is Auto.
The keypad has no password protection.
Refer to the Pop-Up Wizard section in the Installation Manual for a
complete list of factory defaults and contractor settings.
Emergency Heat
Your system may include Emergency Heat. The RS5220 thermostats have
an emergency heat capability for multi-stage heat pump systems. To
determine if your system is capable of using emergency heat contact your
contractor. Use the button to enter the EMER mode. An E will be
displayed with the Heat symbol. This mode is used to bypass the heat
pump when it needs servicing or when it cannot keep up with the heat
demand.
Auto Changeover
Auto changeover is the ability of the thermostat to switch automatically
between heating settings and cooling settings. This is useful in spring and
fall when the days are warm and the nights are cool. In heat mode if the
room continues to warm beyond a set threshold the thermostat switches
to the cool mode and the associated cooling settings. The reverse is also
true.
As the room temperature changes, the thermostat will call for heating or
cooling as needed. To prevent the heating and cooling systems from
overriding each other, an automatic changeover deadband is used.
The deadband is the number of degrees that the room temperature can
move away from the active setpoint until heating or cooling is called for.
The larger the deadband the more the room temperature will vary.
Making Changes to the Programmed Settings
Any setting can be changed when it is flashing by pushing or
If a button is not pushed within 10 seconds the thermostat returns to
operation.
The following buttons can be accessed from the front panel.
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Off
Heat
Cool
Emergency Heat E
Automatic Changeover A

START/STOP SCHEDULE: Switches between running a schedule and
manual (permanent override). Cancels a temporary or vacation override.
EDIT SCHEDULE: Use this button to start editing the schedule. Push
repeatedly to move through the selections.
VACATION: Used to set a temporary setpoint for a number of days.
SET TIME: Sequences through the hour, minute and day.
LIGHT BAR: Turns on the display back light for 10 seconds.
FAN: Turns fan to AUTOMATIC, CIRCULATE or ON.
UP ARROW: Used during programming to increase the flashing item.
DOWN ARROW: Used during programming to decrease the flashing item.
HEAT/COOL: Sequences through OFF, HEATING, COOLING, and AUTO. If
you are using an RS5220 and it is configured as HP, emergency heat is
also displayed.
To Make Changes in the Schedule:
This thermostat can operate using a single setpoint by overriding the
schedules. If you will be using this thermostat for single setpoint operation
skip to Overriding the Schedule.
Use the following table to document your schedule settings before editing
the schedule on the thermostat.
Press START/STOP SCHEDULE at any time to exit and save your settings.
Push EDIT SCHEDULE. The start time of the setpoint will be flashing.
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TTiimmeeCCoooollHHeeaatt
MMoorrnniinngg
DDaayy
EEvveenniinngg
NNiittee

If a button is not pushed within 30 seconds the thermostat returns to
operation.
Use the or to change the hour of the start time if desired.
Push EDIT SCHEDULE to move to minutes.
Use the or to change the minutes of the start time if desired.
Push EDIT SCHEDULE to move to the heat or cool temperature setting.
Use the or to change the temperature setpoint.
Pressing will switch between cooling and heating. Use and
to change the setpoint.
- OR -
Push EDIT SCHEDULE to move from heat to cool or cool to heat
temperature setting. Use the or to change the temperature
setpoint.
NOTE: THE HEATING AND COOLING SETPOINTS
CANNOT BE ENTERED AS CROSSED. THAT IS, THE
COOLING SETPOINT CANNOT BE LOWER THAN THE
HEATING SETPOINT.
Push EDIT SCHEDULE and repeat this process for the remaining three
weekday settings. All of the week days will use this schedule.
After the weekday schedule is complete the display will show the
weekend schedule.
Continue the same steps to program the four weekend settings.
When you are finished, the thermostat will be in operation after 30
seconds.
To Make Changes to the Settings
When and are pressed at the same time the thermostat will
display the current settings in order.
To change any setting:
When the setting is visible and flashing press the or
arrows to adjust the number on the screen.
To exit the changes and save:
press START/STOP SCHEDULE. The thermostat will return to
operation.
SCAL = Scale in °F (Fahrenheit) or °C (Celsius)
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CLOC = Clock setting in 12 or 24 hour readings
light = Display backlight always on ”Y” or off ”n”. Also called the
nightlight feature. If the thermostat has been wired to enable this
feature it will be displayed and the setting can be changed.
DIFF = The differential keeps the thermostat from turning on for small
changes in temperature. When in Fahrenheit the range is 0.5 to 3.0
degrees. In Celsius the range is 0.5 to 1.5 degrees. The differential is
factory set to 1.0 F degree (0.5 C degree). This means that whenever
the room temperature is more than 1 F degree (0.5 C degree)
different from the set temperature the system will turn on. If the
system is turning on too often, increase the differential setting. Note
that a larger differential will mean the room temperature changes
more before the system turns on.
DIF2 = SECOND STAGE DIFFERENTIAL = Operates with the first stage to
control a second heating/cooling system. This number will be added
to the first stage differential (See: Two Stage Systems). If the first
stage is running too often lower the settings. This will turn the
second stage on to help the first stage. If both stages are turning on
too often, increase this setting to delay the second stage.
DLY2 = SECOND STAGE DELAY = This timer starts when the first stage
turns on. It resets when the first stage turns off. If this timer expires,
the second stage will turn on (See Two Stage Systems).
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DEDB = Deadband for auto changeover = the number of degrees that the
room temperature can move away from the active setpoint until
heating or cooling is called for. The larger the deadband the more
the room temperature will vary. This can be from heat to cool or cool
to heat.
HI = High Heat Limit = This is the highest allowed heating setpoint. The
user will not be allowed to set a schedule setpoint or override
temperature higher than this value.
LO = Low Cool Limit = This is the lowest allowed cooling setpoint. The
user will not be allowed to set a schedule setpoint or override
temperature lower than this value.
VAC HEAT = Vacation Heat Setpoint = This is the temperature setpoint for
the heating system when a vacation override has been made active.
VAC COOL = Vacation Cool Setpoint = This is the temperature setpoint for
the cooling system when a vacation override has been made active.
CHECK = Timer to remind the home owner to maintain the filter. Default
setting is off. The timer runs when the system is on and can be set at
0 (OFF) or up to 9900 hours. When the timer expires, CHECK FLTR is
displayed. Press any button to reset and return to the normal display.
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CYCL = Cycle Timer allows a compressor to rest between cycles. Can be
set from 0 to 5 minutes in 1 minute 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.
Security Lockout to Protect the Settings
The buttons on the front of the thermostat can be locked with a password.
To create a password:
1. Press the and buttons at the same time and hold them in
for 5 seconds.
You will be asked for a 4 digit password.
2. Each digit is set using the and buttons. Press the to
move to the next digit. Press to move back.
3. The password is saved after 10 seconds or by pressing and
at the same time.
All of the front buttons are now locked out until the password is entered.
Pressing any button will cause to flash.
To unlock the buttons:
1. Push and hold the and buttons for 5 seconds until the
request for password is displayed.
2. Enter the digits for the password by pressing the and
buttons. Press the to move to the next digit. Press to
move back.
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