®
Programmable
Thermostats
Detailed
User Guide
2020
2220
Single Stage Heat / Cool Conventional and Heat Pump
Up to 2 Heat / 2 Cool Conventional Up to 2 Heat / 1 Cool Heat Pump
Model number is located on back of thermostat
1 |
Specifications |
6 |
Setting Your Program Schedule |
2 |
About Your Thermostat |
7 |
Operating Your Thermostat |
3 |
Installation |
8 |
Additional Operation Features |
4 |
System Testing |
9 |
Thermostat Maintenance |
5 |
Setting User Options |
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Warning Turn off power to the heating or cooling equipment before installation.
Attention For installation by experienced service technicians only.
Read all instructions before proceeding.
This thermostat requires 24 Volt AC Power or two (2) properly installed “AA” Alkaline batteries for proper operation. When connecting 24 Volt AC Power the batteries may be installed as a backup.
For use only as described in this manual. Any other use will void warranty.
1 Specifications
This thermostat is compatible with:
•Single stage heat / cool conventional and heat pump systems
•Conventional systems up to 2 heat / 2 cool (2220 only)
•Single compressor heat pump systems with an auxiliary heat stage (2220 only)
•250 – 750 millivolt heat only systems
Electrical and control specifications:
•Electrical Rating: 24 Volt AC
•1 amp maximum load per terminal
•AC Power: 18 – 30 Volts AC
•DC Power: 3.0 Volt DC (2 “AA” Alkaline Batteries Included)
•Control Range: 45° – 90° F (7° – 32° C)
•Temperature Accuracy: +/- 1° F (+/- .5° C)
Terminations
• 2020 |
– Rc, Rh, O, B, Y1, W1, G, C |
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• 2220 |
– Rc, Rh, O, B, Y1, Y2, E/W1, G, W2, C |
2020W-100-06 |
2 About Your Thermostat
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10 |
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1 |
Room Temperature........... |
Displays. the current room temperature |
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2 |
Day of Week....................... |
Displays the current day of week |
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3 |
Program Event Indicator |
....Indicates the current program event |
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4 |
Time of Day....................... |
Displays. |
the current time of day |
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5 |
Low Battery Indicator........ |
Indicates when batteries need to be replaced |
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6 |
Fan Indicator..................... |
Indicates. |
when the system fan is running |
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7 |
Hold Mode Indicator.......... |
Displays if in HOLD mode |
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8 |
System Status Indicator.... |
Displays information about system status |
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9 |
Set Temperature................. |
Displays the current set point temperature |
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10 |
Service Filter Indicator...... |
Displays service/maintenance reminders |
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13 14 15 16
11Reset Button............Resets thermostat back to factory defaults
12System Switch........Selects system preference
13PROG Button............Selects programming mode
14HOLD Button............Enters/Exits the HOLD mode (program bypass)
15RETURN Button........Returns to normal from program or setting modes
16DAY/TIME Button.....Used to set the time and day of week
17Quick Reference
Instructions.............Stored in slot at top of thermostat
18Arrow Buttons........ .Used to increase or decrease settings
19 Fan Switch.............. |
Selects the system fan mode |
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Battery Compartment..... |
Located. |
in back of the thermostat |
1
3 Installation
Warning Disconnect power before beginning installation.
Thermostat Location
Install the thermostat approximately 5 feet (1.5m) above the floor in an area that has a good amount of air circulation and maintains an average room temperature.
Avoid installation in locations where the thermostat can be affected by drafts, dead air spots, hot or cold air ducts, sunlight, appliances, concealed pipes, chimneys and outside walls.
Install your new Braeburn thermostat in 5 basic steps:
1Install the Sub-Base
2Provide Power
3Connect Your Wires 4 Set Installer Switches
5Attach Thermostat to Sub-Base
1Install the Sub-Base:
•Remove the sub-base from the body of the thermostat.
•Mount the sub-base as shown below:
Drill 3/16” pilot holes in your desired location. Use supplied anchors for drywall or plaster.
UP |
UP |
NOTE: After sub-base installation, you may insert the quick reference card into the slot on the top of the base.
2
2 Provide Power
24VAC Power Terminal (C)
C
•For 24 Volt AC power, you must connect the common side of the transformer to the C terminal on the thermostat sub-base.
•For primary or back-up power, insert the 2 supplied “AA” type alkaline batteries into the battery compartment located in the rear housing of the thermostat. Make sure to position the Positive (+) and Negative (-) sides of the batteries correctly with the +/- symbols in the battery compartment.
3 Connect Your Wires
Wiring Terminations
Terminal |
Function |
Description |
Rc |
Input |
24 Volt AC Cooling Transformer |
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(Dual Transformer Systems Only) |
Rh |
Input |
Power Connection (24 Volt AC Heating |
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Transformer or Millivolt Power Source) |
O |
Output |
Reversing Valve (Cool Active) |
B |
Output |
Reversing Valve (Heat Active) |
Y1 |
Output |
Compressor Relay |
G |
Output |
Fan Control |
W1 |
Output |
Conventional Heat Relay |
C |
Input |
24 Volt AC Transformer Common |
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Additional Terminations (2220 only) |
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Terminal |
Function |
Description |
W1/E |
Output |
(W1) 1st Stage Conventional Heat |
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(E) Emergency Heat Relay |
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Y2 |
Output |
2nd Stage Conventional Cooling Compressor |
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W2 |
Output |
2nd Stage Heat / Auxiliary Heat |
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3
Conventional Systems
Typical Wiring Configurations
NOTE: The “Installer Switch” option will be configured in the next step.
Heat Only or Millivolt
Set Installer Switch to CONV
Rh |
Power Connection |
W |
Heat Relay (appears as W1/E on 2220) |
G |
Fan Relay [note 4] |
C |
24 Volt AC Transformer Common [note 1] |
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1 HEAT / 1 COOL Single or Dual Transformer
Set Installer Switch to CONV
Rh |
24 Volt AC Power (heating transformer) [note 2] |
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Rc |
24 Volt AC Power (cooling transformer) [note 2] |
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W1 |
Heat Relay (appears as W1/E on 2220) |
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Y1 |
Compressor Relay |
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G |
Fan Relay |
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C |
24 Volt AC Transformer Common [note 1, 3] |
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2 HEAT / 2 COOL Single or Dual Transformer (2220 Only)
Set System Type to CONV
Rh |
24 |
Volt AC Power (heating transformer) [note 2] |
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Rc |
24 |
Volt AC Power (cooling transformer) [note 2] |
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W1 |
Heat Relay Stage 1 |
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W2 |
Heat Relay Stage 2 |
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Y1 |
Compressor Relay Stage 1 |
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Y2 |
Compressor Relay Stage 2 [note 4] |
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G |
Fan Relay |
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C |
24 Volt AC Transformer Common [note 1, 3] |
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NOTES - Conventional Systems
[1]If batteries are installed the 24 Volt AC common connection is optional
[2]Remove factory installed jumper for dual transformer systems
[3]In dual transformer systems, transformer common must come from cooling transformer
[4]If needed for system
Provide disconnect and overload protection as required.
4
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