Braeburn 2020NC Operating and maintenance manual

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. Thermostat installation and all
components of the system shall conform to Class II Circuits per NEC code.
For use only as described in this manual. Any other use
will void warranty.
2020NC
Single Stage Heat / Cool
Conventional and Heat Pump
1 Specifications
2 About Your Thermostat
3 Installation
4 System Testing
5 Setting User Options
6 Setting Your Program Schedule
7 Operating Your Thermostat
8 Additional Operation Features
9 Thermostat Maintenance
®
Warning
Turn off power to the heating or cooling
equipment before installation.
Attention
For installation by experienced service
technicians only.
2220NC
Up to 2 Heat / 1 Cool Conventional
Up to 2 Heat / 1 Cool Heat Pump
Read all instructions before proceeding.
This thermostat is compatible with:
• Single stage heat / cool conventional and heat pump systems
• Conventional systems up to 2 heat / 1 cool (2220NC only)
• Single compressor heat pump systems with an auxiliary heat stage (2220NC)
• 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
• 2020NC – Rc, Rh, O, B, Y1, W1, G, C
• 2220NC – Rc, Rh, O, B, Y1, E/W1, G, W2, C
1
Specifications
2020NCW-100-05
Model number is located on back of thermostat
Programmable
Thermostats
Detailed
User Guide

1
Single Stage Heat / Cool
Conventional and Heat Pump
6 Setting Your Program Schedule
7 Operating Your Thermostat
8 Additional Operation Features
9 Thermostat Maintenance
For installation by experienced service
technicians only.
Up to 2 Heat / 1 Cool Conventional
Up to 2 Heat / 1 Cool Heat Pump
2
About Your Thermostat
Room Temperature...........Displays the current room temperature
Day of Week......................Displays the current day of week
Program Event Indicator ..Indicates the current program event
Time of Day.......................Displays the current time of day
Low Battery Indicator ...... Indicates when batteries need to be replaced
Fan Indicator ....................Indicates when the system fan is running
Hold Mode Indicator.........Displays if in HOLD mode
System Status Indicator...Displays information about system status
Set Temperature ...............Displays the current set point temperature
Service Filter Indicator.....Displays service/maintenance reminders
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10
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10
Model number is located on back of thermostat
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2
4
3
Reset Button.......... Resets thermostat back to factory defaults
System Switch....... Selects system preference
PROG Button ..........Selects programming mode
HOLD Button ..........Enters/Exits the HOLD mode (program bypass)
RETURN Button......Returns to normal from program or setting modes
DAY/TIME Button ...Used to set the time and day of week
Quick Reference
Instructions ........... Stored in slot at top of thermostat
Arrow Buttons ....... Used to increase or decrease settings
Fan Switch.............Selects the system fan mode
Battery Compartment ....Located in back of the thermostat
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13 14 15 16
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2
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
Install the Sub-Base:
• Remove the sub-base from the body of the thermostat.
• Mount the sub-base as shown below:
1
NOTE: After sub-base installation, you may insert the quick reference card
into the slot on the top of the base.
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.
Drill 3/16” pilot holes in
your desired location.
Use supplied anchors for
drywall or plaster.
UP UP

3
Terminal Function Description
Rc Input 24 Volt AC Cooling Transformer
(Dual Transformer Systems Only)
Rh Input Power Connection (24 Volt AC Heating
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
Connect Your Wires
3
Wiring Terminations
Terminal Function Description
W1/E Output (W1) 1st Stage Conventional Heat
(E) Emergency Heat Relay
W2 Output 2nd Stage Heat / Auxiliary Heat
Additional Terminations (2220NC only)
Provide Power
• For 24 Volt AC power, you must connect the common side of the trans-
former 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.
24VAC Power
Terminal (C)
2
C

4
1 HEAT / 1 COOL Single or Dual Transformer
Set Installer Switch to CONV
Rh 24 Volt AC Power (heating transformer) [note 2]
Rc 24 Volt AC Power (cooling transformer) [note 2]
W1 Heat Relay (appears as W1/E on 2220NC)
Y1 Compressor Relay
G Fan Relay
C 24 Volt AC Transformer Common [note 1, 3]
Typical Wiring Configurations
NOTE: The “Installer Switch” option will be configured in the next step.
Conventional Systems
24VAC Power
Terminal (C)
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.
2 HEAT / 1 COOL Single or Dual Transformer (2220NC Only)
Set System Type to CONV
Rh 24 Volt AC Power (heating transformer) [note 2]
Rc 24 Volt AC Power (cooling transformer) [note 2]
W1 Heat Relay Stage 1
W2 Heat Relay Stage 2
Y1 Compressor Relay Stage 1
G Fan Relay
C 24 Volt AC Transformer Common [note 1, 3]
Heat Only or Millivolt
Set Installer Switch to CONV
Rh Power Connection
W Heat Relay (appears as W1/E on 2220NC)
G Fan Relay [note 4]
C 24 Volt AC Transformer Common [note 1]

Factory Setting
Switch Default Options Comments
5
NOTES - Heat Pump Systems
[1] If batteries are installed the 24 Volt AC common connection is optional.
[2] Select Ofor cool active or B for heat active.
[3] Install a field supplied jumper between the W2 and Eterminals if
there is no separate emergency heat relay installed.
Provide disconnect and overload protection as required.
CONV / HP CONV
F / C F
HE / HG HG
Set Installer Switches
4
CONV Select for conventional systems
HP Select for heat pump systems
F Select for fahrenheit temperature scale
C Select for celsius temperature scale
HG Select for gas heat
HE Select for electric heat
Typical Wiring Configurations
NOTE: The “Installer Switch” option will be configured in the next step.
Heat Pump Systems
1 HEAT / 1 COOL - No Auxiliary Heat
Set Installer Switch to HP
Rh 24 Volt AC Power
Rc Connected to Rh with supplied Jumper Wire
O or B Changeover Valve [note 2]
Y1 Compressor Relay
GFan Relay
C24 Volt AC Transformer Common [note 1]
2 HEAT / 1 COOL - Including Auxiliary Heat (2220NC only)
Set Installer Switch to HP
Rh 24 Volt AC Power
Rc Connected to Rh with supplied Jumper Wire
O or B Changeover Valve [note 2]
Y1 Compressor Relay (1st stage heating/cooling)
W2 Auxiliary Heat Relay (2nd stage heating) [note 3]
E Emergency Heat Relay [note 3]
G Fan Relay
C 24 Volt AC Transformer Common [note1]
The Installer switches are located on the back of the thermostat and must
be properly set for this thermostat to operate properly.

6
Attach Thermostat to Sub-Base
5
1. Line up the thermostat body with the sub-base.
2. Carefully push the thermostat body against the sub-base until it snaps
into place.
3. Insert quick reference card into slot on top of thermostat.
4
System Testing
Warning
Read Before Testing
• Do not short (or jumper) across terminals on the gas valve or at the
heating or cooling system control board to test the thermostat installa-
tion. This could damage the thermostat and void the warranty.
• Do not select the COOL mode of operation if the outside temperature
is below 50º F (10º C). This could possibly damage the controlled cool-
ing system and may cause personal injury.
• This thermostat includes an automatic compressor protection feature to
avoid potential damage to the compressor from short cycling. When
testing the system, make sure to take this delay into account.
NOTE: The compressor delay can be bypassed by pressing the reset button
on the front of the thermostat. All user settings will be returned to factory
default.
1Move the SYSTEM switch to HEAT mode.
2Press to raise the set temperature a minimum of 3 degrees above
the current room temperature. The system should start within a few
seconds. With a gas heating system, the fan may not start right away.
3Move the SYSTEM switch to the OFF mode. Allow the heating system to
fully shut down.
4Move the SYSTEM switch to the COOL mode.
5Press to lower the set temperature a minimum of 3 degrees below
the current room temperature. The system should start within a few
seconds (unless compressor short cycle protection is active – See
note above).
6Move the SYSTEM switch to the OFF mode. Allow the cooling system to
fully shut down.
7Move the FAN switch to the ON mode. The system fan should start
within a few seconds.
8 Move the FAN switch to the AUTO mode. Allow the system fan to turn off.
NOTE: Installer switches are located on the back of the thermostat. The
reset button must be pressed after making any changes to these switches.
UP UP

7
User Factory Setting
No. Options Default Options Comments
1 Programming PRO 7 PRO 7 Select for 7 Day Programming Mode
Mode PRO 52 Select for 5-2 Day Programming Mode
PRO NO Select for Non-Programmable Mode
2 1st stage 0.5 0.5, 1.0, Select a 1st stage temperature
differential
2.0 differential of .5˚, 1˚ or 2˚F (0.2˚,
0.5˚ or 1˚C)
3 2nd stage
2.0 1.0, 2.0, Select a 2nd temperature
differential 3.0, 4.0 , differential of 1˚, 2˚, 3˚, 4˚, 5˚ or 6˚F
(2220NC Only) 5.0, 6.0 (.5˚, 1˚, 1.5˚, 2˚, 2.5˚ or 3˚C)
LNG Selects long (permanent) hold mode
24HRS Selects 24 hr. (temporary) hold mode
5
OFF Disables filter service monitor feature
30, 60, 90 ,Selects a number of days before
120, 180, the thermostat will flash a Service
365 Filter reminder in the display.
6 OF REC Disables adaptive (early)
recovery mode
ON REC Enables adaptive (early)
recovery mode
Table of User Options
Detailed Explanation of User Options:
Programming Mode
(User Option 1)
Selects the programming mode (choose from 7 day, 5-2 Day (weekday/
weekend) programming or non-programmable.
Temperature Differential
(User Option 2 and 3)
The differential setting is the temperature control range that your thermostat
will provide. The smaller the setting, the tighter your range of temperature
control and comfort will be. The 2nd stage differential is only for systems
with a second stage of heating (auxiliary heat).
5
Setting User Options
Advanced User Options
User options allow you to customize some of your thermostat’s features.
Most users will not need to make any changes to the settings in this section.
To enter the User Options menu, hold down the RETURN button for
approximately 3 seconds until the screen changes and displays the
first User Option.
Press the or button to change the setting for the displayed User Option.
After you have made your desired setting, press RETURN to advance to the
next User Option.
The thermostat will return to normal mode after your last user option is
made or after no keys have been pressed for 15 seconds.
Extended
Hold Period*
Filter
Service
Monitor
LNG
Adaptive
Recovery
Mode(ARM
TM
)*
OF REC
OFF
4

8
6
Setting Your Program Schedule
Setting the Time and Day
1. In normal operating mode, press the DAY/TIME
button. The display will switch to the day/time
setting mode and the hour will be flashing.
2. Press or to adjust the hour.
Press DAY/TIME.
3. Press or to adjust the minute. Press
DAY/TIME.
4. Press or to adjust the day of the week. Press RETURN to exit.
Extended Hold Period*
(User Option 4)
The Extended Hold Period lets you select the period your thermostat will
hold the temperature when the HOLD mode is activated (See “Temperature
Adjustment”). When LNG is selected the thermostat will hold your
temperature indefinitely. When 24HR is selected, the thermostat will hold
your temperature for 24 hours and then return to the current program at
that time.
Service Filter Monitor
(User Option 5)
The Service Filter Monitor is a user selectable
service monitor that will display a reminder for
a required air filter replacement by flashing the
SERVICE FILTER segment in the display. When the
selected interval has been reached, and required
cleaning or replacement has been performed,
touch the RETURN button to reset the timer and reset the service monitor.
Select OFF or a set number of days before the reminder will appear.
Adaptive Recovery Mode (early recovery)*
(User Option 6)
Adaptive Recovery Mode is a user setting that controls when the thermostat
will start to recover from setback.
Tips Before Setting Your Program Schedule
• Make sure your current time and day of the week are set correctly.
• When programming, make sure the AM and PM indicators are correct.
• Your NIGHT event cannot exceed 11:50 p.m.
This thermostat has been configured with one of the following
programming options:
• 7 day programming mode with 4 events per day (default)
• 5-2 (weekday/weekend) programming mode with 4 events per day.
• Non-Programmable mode
ARM
TM
Setting Result
OFF Start change at programmed time
ON Finish change at programmed time
*Not available if User Option 1 is set to non-programmable

9
NOTE: If this thermostat was set in the
Installer Settings to be non-programmable, then
you cannot set a user program. If you press the
PROG or HOLD buttons, the word “NO” will
appear in the display, indicating there is no
program present. See section 5, “Setting User
Options” to change this setting.
Energy Saving Programs
This thermostat comes pre-programmed with a default energy saving
program. The following tables outline the pre-programmed times and tem-
peratures for heating and cooling in each of your 4 daily events. If you wish
to use these settings then no further programming is necessary:
MORN
DAY
EVE
NIGHT
Time: 6:00 pm
Heat: 70˚ F (21˚ C)
Cool: 78˚ F (26˚ C)
Time: 8:00 am
Heat: 62˚ F (17˚ C)
Cool: 85˚ F (29˚ C)
Time: 6:00 am
Heat: 70˚ F (21˚ C)
Cool: 78˚ F (26˚ C)
Time: 10:00 pm
Heat: 62˚ F (17˚ C)
Cool: 82˚ F (28˚ C)
4 Event All Days
7 Day Programming
Factory Settings
Weekday Weekend
MORN
DAY
EVE
NIGHT
Time: 6:00 pm
Heat: 70˚ F (21˚ C)
Cool: 78˚ F (26˚ C)
Time: 8:00 am
Heat: 62˚ F (17˚ C)
Cool: 85˚ F (29˚ C)
Time: 6:00 am
Heat: 70˚ F (21˚ C)
Cool: 78˚ F (26˚ C)
Time: 10:00 pm
Heat: 62˚ F (17˚ C)
Cool: 82˚ F (28˚ C)
4 Event
Time: 6:00 pm
Heat: 70˚ F (21˚ C)
Cool: 78˚ F (26˚ C)
Time: 8:00 am
Heat: 62˚ F (17˚ C)
Cool: 85˚ F (29˚ C)
Time: 6:00 am
Heat: 70˚ F (21˚ C)
Cool: 78˚ F (26˚ C)
Time: 10:00 pm
Heat: 62˚ F (17˚ C)
Cool: 82˚ F (28˚ C)
5-2 Day Programming– Weekday/Weekend
Factory Settings

10
Programming a 7 Day Schedule
The 7 day programming mode gives you the option to program individual
days (1 day at a time) or to use SpeedSet and program the entire week (all
7 days) with a 4 event program schedule.
Setting All 7 Days at Once (SpeedSet
®
)
NOTE: Setting all 7 days at once will copy over any previously programmed
individual days.
1. Hold the PROG button for 3 seconds. The
display will switch to SpeedSet programming
mode. All 7 days of the week will appear and
the hour will be flashing.
2. Select HEAT or COOL with SYSTEM switch.
3. Press the or button to adjust the hour
for the MORN (morning) event. Press PROG.
4. Press the or button to adjust the minute for the MORN event.
Press PROG.
5. Press the or button to adjust the temperature for the MORN event.
Press PROG.
6. Repeat steps 3-5 for the DAY, EVE and NIGHT events.
7. If needed, repeat steps 2-6 to program the opposite mode (HEAT or COOL).
8. Press RETURN to exit.
Setting Individual Days (7 Day Mode)
1. Press the PROG button. The display will
switch to programming mode. M (Monday)
will be displayed and the hour will be flashing.
2. Select HEAT or COOL with SYSTEM switch.
3. Press DAY/TIME to select the day you
would like to program.
4. Press the or button to adjust the hour
for the MORN (morning) event. Press PROG.
5. Press the or button to adjust the minute for the MORN event.
Press PROG.
6. Press the or button to adjust the temperature for the MORN event.
Press PROG.
7. Repeat steps 4-6 for your DAY, EVE and NIGHT events.
8. If needed, repeat steps 3-6 to select a different day to program.
9. If needed, repeat steps 2-8 to program the opposite mode
(HEAT or COOL).
10. Press RETURN to exit.

11
Programming a 5-2 Day Schedule
The 5-2 day programming mode allows you to program Monday - Friday
with one 4 event schedule and then allows you to change Saturday and
Sunday with a different 4 event schedule.
1. Press the PROG button. The display will switch
to programming mode. The days M, TU, W, TH,
and F will be displayed and the hour will be
flashing.
2. Select HEAT or COOL with SYSTEM switch.
3. Press the or button to adjust the hour
for the MORN (morning) event. Press PROG.
4. Press the or button to adjust the minute for the MORN event.
Press PROG.
5. Press the or button to adjust the temperature for the MORN event.
Press PROG.
6. Repeat steps 3-5 for your DAY, EVE and NIGHT events.
7. Repeat steps 3-6 for your Saturday and Sunday (S, SU) program.
8. If needed, repeat steps 2-7to program the opposite mode
(HEAT or COOL).
9. Press RETURN to exit.
7
Operating Your Thermostat
Setting the System Control Mode
The System Control has several modes of
operation that can be selected by moving the
SYSTEM switch to the appropriate position.
COOL Only your cooling system will operate
OFF Heating and cooling systems are off
HEAT Only your heating system will operate
Additional Switch Position (Model 2220NC Only):
EMER Operates a backup heat source (Emergency Heat) for heat pump
systems only
NOTE: If your model 2220NC was set for a
conventional system (CONV) then you will not
have the EMER (emergency heat) option and
“NO EMER SET” will flash in the display if
EMER is selected with the system switch.

Status Indicators
Status indicators appear in the display to let you know if your system is
heating, cooling or off.
HEAT ON Indicates that your heating system
is running.
COOL ON Indicates that your cooling system
is running.
SERVICE Indicates that a user service
reminder was selected (see “Service
Filter Monitor, page 8).
Additional status indicators (Model 2220NC Only):
AUX Indicates that the auxiliary stage of heating is running
(multi-stage systems only).
EMER Indicates that the emergency heating system is running (heat
pump systems only).
Program Event Indicators
Program Event Indicators appear in the display to let you know what part
of your current program is active. The 4 different program event indicators
are MORN, DAY, EVE and NIGHT.
When the program event indicator is flashing, your program has been
temporarily bypassed and will resume at the next scheduled event.
Note: You will not see a program event indicator while in HOLD Mode.
Resetting the Thermostat
This thermostat provides you with a reset button that will erase all of your
user settings and programming.
To reset the thermostat, use a small object such as a tooth pick or paper-
clip and gently press the button located inside the small hole on the front of
the thermostat housing labeled “reset”.
Setting the Fan Control Mode
The Fan Control has 2 modes of operation – AUTO and ON. The mode can
be selected by moving the FAN switch to the appropriate position.
AUTO The system fan will run only when your
heating or cooling system is running
ON The system fan stays on
Temperature Adjustment
Temporary Adjustment – Press the or button to adjust the current
set point temperature.
Extended Adjustment – Press the HOLD button so that HOLD appears in
the display screen. Press or to adjust the current set temperature
(See “Extended Hold Period”, page 8).
12

8
Additional Operation Features
Compressor Protection
This thermostat includes an automatic compressor protection delay to help
avoid potential damage to your system from short cycling. This feature
activates a short delay after turning off the system compressor.
9
Thermostat Maintenance
Changing the Batteries
Depending on your particular installation, this
thermostat may be equipped with two (2) “AA”
type alkaline batteries.
If batteries are installed and they become low,
a low battery indicator will appear in the display.
You should change your batteries immediately
when you see the low battery signal by following
these instructions.
1. Remove thermostat body by gently pulling it from base.
2. Remove old batteries and replace with new batteries.
3. Make sure to correctly position the (+) and (-) symbols.
4. Gently push thermostat body back onto base.
NOTE: We recommend replacing the thermostat batteries annually or if the
thermostat will be unattended for an extended period of time.
Thermostat Cleaning
Never spray any liquid directly on the thermostat. Using a soft damp cloth
wipe the outer body of the thermostat. Never use any abrasive cleansers to
clean your thermostat.
+
+

Store this manual for future reference
.
Limited Warranty
When installed by a professional contractor, this product is backed by a 5 year
limited warranty. Limitations apply. For limitations, terms and conditions, you
may obtain a full copy of this warranty:
· Visit us online: www.braeburnonline.com/warranty
· Phone us: 866.268.5599
· Write us: Braeburn Systems LLC
2215 Cornell Avenue
Montgomery, IL 60538
5
YEAR
WARRANTY
LIMITED
Braeburn Systems LLC
2215 Cornell Avenue • Montgomery, IL 60538
Technical Assistance: www.braeburnonline.com
Call us toll-free: 866-268-5599 (U.S.)
630-844-1968 (Outside the U.S.)
©2018 Braeburn Systems LLC • All Rights Reserved. Made in China. 2020NCW-100-05