Thank you for purchasing a Robertshaw ® thermostat. This manual will describe how to install and test the Robertshaw RS9220 thermostat.
Thermostat System Types
| Gas, Oil, or Electric Heat with Air Conditioning |
| Heat Pumps (without auxiliary or emergency heat) |
| Multi-Stage Systems |
| Heat-Only, including for Floor and Wall-Furnace |
| Cool-Only |
| 750 Millivolt Heating Systems |
Power Options
WARNING:
Install the thermostat 4 to 5 feet above the floor in an area with good air circulation and average temperature.
For new installations, mount thermostat on an inside wall, 4-5 feet above the floor. Do not install the thermostat in the following locations:
Getting to know your thermostat
Caution:Electrical Hazard
Disconnect power before installingthis 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.
Turn Off Power to Heating/Cooling System
Remove Old Thermostat
Remove old thermostat but leave wallplate with wires attached.
Label Wires with Tags
Label the wires using the supplied wire labels as you disconnect them.
Separate Wallplate from New Thermostat
Remove wallplate from the new thermostat and mount onto wall.
Mount Wallplate for New Thermostat
Mount the new wallplate using the included screws and anchors.
Drill 3/16-in. holes for plaster
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).
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).
Terminal Designations
Wire specifications
Common wire
The C (common wire) is optional when the thermostat is powered by batteries.
Typical 2H/2C System: 1 Transformer
Typical 2H/2C System: 2 Transformers
Typical Heat-Only System
Typical Cool Only System
Typical 2H/2C Heat Pump System w/o Aux.
Typical Heat-Only System With Fan
This thermostat has an installer setup menu for easy configuration. Follow the procedure below to set up the thermostat to match the specific heating/cooling system.
| Settings | Display | Adjustment Options | Default |
| Filter Change Reminder ilter Change This setting will flash FILT in the display after the elapsed run time to remind the user to change the filter. The OFF setting will disable this feature. | The filter 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 filter elapsed run time. | OFF | |
| Room This setting allows the installer to change the calibration of the room temperature display so that, for Temperature Calibration example, the thermostat would read 72°F instead of 70°F. | The room temperature display can be adjusted to read up to 3° above or below the factory calibrated temperature. | 0 | |
| Minimum The installer can select the minimum run time for the compressor to help protect the Compressor On-Time compressor from short-cycling. | 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 | |
| Compressor Short Cycle Delay 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 compressor short cycle delay setting can be removed by selecting OFF. | ON | |
| Cooling Differential 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. | The cooling differential setting is adjustable from 0.2°F to 2°F. | 0.5 | |
| Heating Differential The heating differential is factory preset at 0.4°. This m ans 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 heating differential setting is adjustable from 0.2°F to 2°F. | 0.4 | |
| For C Select F for Fahrenheit temperature display or select C for Celsius display. | F for Fahrenheit C for Celsius | F | |
| 12 or 24 Select a 12 or 24 hour clock setting. Hour Clock | Use and to select 12 or 24 hour clock. | 12 | |
| Fan Select GAS or ELEC depending on the type of furnace. Operation | GAS – GS or ELEC-EL | GAS | |
| This thermostat can be configured to have 7 Day, +1+1 programming. or be non-programmable. If 7 Day is selected, in Set Time all seven days will need to be programmed individually. Program Options 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. | 5d |
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.
Set Time of Day and Day of Week
Default Program
This thermostat is pre-programmed for energy saving operation. The default program is below:
| Default Program | ||||
| Day of the Week | Events | Time | Set-Point Temperature (Heat) | Set-Point Temperature (Cool) |
| Weekday | Wake | 6 a.m. | 70°F (21°C) | 75°F (24°C) |
| Leave | 8 a.m. | 62°F (17°C) | 83°F (28°C) | |
| Return | 70°F (21°C) | 75°F (24°C) | ||
| Sleep | 10 p.m. | 62°F (17°C) | 78°F (26°C) | |
| Saturday | Wake | 8 a.m. | 70°F (21°C) | 75°F (24°C) |
| Leave | 10 a.m. | 62°F (I 7°C) | 83°F (28°C) | |
| Return | 6 p.m. | 70°F (21°C) | 75°F (24°C) | |
| Sleep | 11 p.m. | 62°F (17°C) | 78°F (26°C) | |
| Sunday | Wake | 8 a.m. | 70°F (21°C) | 75°F (24°C) |
| Leave | 10 a.m. | 62°F (I 7°C) | 83°F (28°C) | |
| Return | 6 p.m. | 70°F (21°C) | 75°F (24°C) | |
| Sleep | 11 p.m. | 62°F (17°C) | 78°F (26°C) | |
You can use the table below to plan your customized program schedule.
| Custom Program | ||||
| Day of the Week | Events | Time | Set-Point Temperature (Heat) | Set-Point Temperature (Cool) |
| Weekday | Wake | |||
| Leave | ||||
| Return | ||||
| Sleep | ||||
| Saturday | Wake | |||
| Leave | ||||
| Return | ||||
| Sleep | ||||
| Sunday | Wake | |||
| Leave | ||||
| Return | ||||
| Sleep | ||||
This thermostat can be configured to have 7 Day or 5+1+1 programming. If 7 Day is selected, all seven days will need to be programmed individually. If 5+1+1 rogramming is selected, Monday–Friday will be programmed together and Saturday and Sunday will need to be programmed individually. There are four time periods for each day (WAKE, LEAVE, RETURN, SLEEP).
Follow the steps below to customize your program schedule:
6Year Limited Warranty Use Phone to Scan for Warranty Info
ROBERTSHAW
DOWNLOAD MANUAL:
Robertshaw RS9220 Programmable Thermostat Installation Guide
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Robertshaw RS9220 Programmable Thermostat Operational Guide
Robertshaw RS9220 Programmable Thermostat Product Specifications Guide
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