Braeburn 2020NC Instructions for use

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.
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 and 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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
  •2020NC–Rc,Rh,O,B,Y1,W1,G,C
  •2220NC–Rc,Rh,O,B,Y1,E/W1,G,W2,C
1
Specifications
2020W-100-01
Model number is located on back of thermostat
Programmable
Thermostats
Detailed
Installer 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 and 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
1
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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2
Install your new Braeburn thermostat in 5 basic steps:
1 InstalltheSub-Base
2 ProvidePower
3 ConnectYourWires
4 SetInstallerSwitches
5 Attach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oor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
Heat Only or Millivolt
Set Installer Switch to CONV
Rh PowerConnection
W1 HeatRelay(appearsasW1/Eon2220NC)
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
Provide disconnect and overload protection as required.
2 HEAT / 2 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]

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Oforcoolactiveor Bforheatactive.
[3]InstallaeldsuppliedjumperbetweentheW2 and Eterminals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
G FanRelay
C 24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congured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.
1 MovetheSYSTEMswitchtoHEATmode.
2 Press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.
3 MovetheSYSTEMswitchtotheOFFmode.Allowtheheatingsystemto
 fullyshutdown.
4 MovetheSYSTEMswitchtotheCOOLmode.
5 Press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).
6 MovetheSYSTEMswitchtotheOFFmode.Allowthecoolingsystemto
 fullyshutdown.
7 Move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: 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 1ststage 0.5 0.5, 1.0 Selecta1ststagetemperature
differential or 2.0 differentialof.5˚,1˚or2˚F(.25˚,5˚
       or2˚C)
2 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 or 6.0  (.5˚,1˚,1.5˚,2˚,2.5˚or3˚C)
 3  
LNG Selectslong(permanent)holdmode
24HRS Selects24hr.(temporary)holdmode
 4 
OFF Disableslterservicemonitorfeature
30, 60, 90 , Selectsanumberofdaysbefore
180, 365 thethermostatwillashaService
       Filterreminderinthedisplay.
 5    OF REC Disablesadaptive(early)
       recoverymode
ON REC Enablesadaptive(early)
       recoverymode
Table of User Options
Detailed Explanation of User Options:
Temperature Differential
(User Option 1 and 2)
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.
Thedefaultuseroptionsarecompatiblewithmostapplications,thereforeit
isnotrequiredthatyouadjustthem.
To access the User Options menu, hold down both the and buttons
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andtogether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
LNG
Filter
Service
Monitor
OFF
Adaptive
Recovery
Mode(ARM
TM
)
OF REC

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ashing.
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 3)
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indenitely.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 4)
TheServiceFilterMonitorisauserselectable
servicemonitorthatwilldisplayareminderfor
arequiredairlterreplacementbyashing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 5)
DuringAdaptiveRecoveryMode(ARM™),roomtemperatureisrecovered
graduallybyturningontheheatingorcoolingbeforetheendoftheset
backperiod.Thesetpointtemperatureischangedtothatoftheupcoming
programtemperature.
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.
Thisthermostatcomespre-programmedwithadefaultenergysaving
program.Thefollowingtableoutlinesthepre-programmedtimesand
temperaturesforheatingandcoolingineachofyour4dailyweekdayand
weekendevents.Ifyouwishtousethesesettingsthennofurtherprogram-
mingisnecessary:

Programming a 5-2 Day Residential Schedule
The5-2dayresidential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. Touch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ashing.
2. MovetheSYSTEMswitchtoeithertheHEAT
 orCOOLposition.
3. Presstheortoadjustthehourforthe
 MORN(morning)event.PressPROG.
4. PressortoadjusttheminutefortheMORNevent.PressPROG.
5. Pressortoadjustthetemperatureforthe MORNevent.PressPROG.
6. Repeatsteps3-5fortheDAY,EVEandNIGHTevents.
7. Repeatsteps3-6fortheweekend(S,SU)program.
8. Ifneeded,repeatsteps2-7toprogramtheoppositemode(HEATorCOOL).
9. PressRETURNtoexit.
Weekday Weekend
MORN
DAY
EVE
NIGHT
Time: 6:00 pm
Heat: 70˚ F (21˚ C)
Cool: 75˚ F (24˚ C)
Time: 8:00 am
Heat: 62˚ F (17˚ C)
Cool: 83˚ F (28˚ C)
Time: 6:00 am
Heat: 70˚ F (21˚ C)
Cool: 75˚ F (24˚ C)
Time: 10:00 pm
Heat: 62˚ F (17˚ C)
Cool: 78˚ F (26˚ C)
4 Event
Time: 6:00 pm
Heat: 70˚ F (21˚ C)
Cool: 75˚ F (24˚ C)
Time: 8:00 am
Heat: 70˚ F (21˚ C)
Cool: 75˚ F (24˚ C)
Time: 6:00 am
Heat: 70˚ F (21˚ C)
Cool: 75˚ F (24˚ C)
Time: 10:00 pm
Heat: 62˚ F (17˚ C)
Cool: 78˚ F (26˚ C)
5-2 Day Programming– Weekday/Weekend
Factory Settings
9

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 Status Indicators (Model 2220NC Only):
EMER Operatesabackupheatsource(EmergencyHeat)forheatpump
 systemsonly
NOTE: If your model 2220NC was configured
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.
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willruncontinually
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).
10

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selectable
  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ashing,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”.
8
Additional Operation Features
Compressor Protection
Thisthermostatincludesanautomaticcompressorprotectiondelayto
avoidpotentialdamagetoyoursystemfromshortcycling.Thisfeature
activatesashortdelayafterturningoffthesystemcompressor.
11

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.
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
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YEAR
WARRANT Y
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