Amana 2246003 General instructions

ELECTRICAL SHOCK HAZARD – Turn off power at the main service panel by removing
the fuse or switching the appropriate circuit breaker to the OFF position before
removing the existing thermostat.
1. Turnoffpowertotheheatingandcoolingsystembyremovingthefuseorswitchingthe
appropriatecircuitbreakeroff.
2. Removecoverofoldthermostat.Thisshouldexposethewires.
3. Labeltheexistingwireswiththeenclosedwirelabelsbeforeremovingwires.
4. Afterlabelingwires,removewiresfromwireterminals.
5. Removeexistingthermostatbasefromwall.
6. Refertothefollowingsectionforinstructionsonhowtoinstallthisthermostat.
To Remove Existing Thermostat
Specifications
Electrical rating: •24VAC(18-30VAC) 
 •4ampmaximumtotalload
 •1ampmaximumperterminal
Temperature control range: 45°Fto90°F(7°Cto32°C)Accuracy:±1°F(±0.5°C)
System congurations:2-stageheat&1-stagecoolheatpump,1-stageelectricheat
Timing: Anti-shortCycle: 4minutes
 BacklightOperation:10seconds
Terminations:R,C,O/B,Y,W,GH,GL
Important Safety Information
WARNING! : Always turn off power at the main power supply before installing, cleaning,
or removing thermostat.
•Thisthermostatisfor24VACapplicationsonly;donotuseonvoltagesover30VAC
•Allwiringmustconformtolocalandnationalelectricalandbuildingcodes
•Donotuseairconditioningwhentheoutdoortemperatureisbelow50degrees;thiscandamage
yourA/Csystemandcausepersonalinjuries
•Usethisthermostatonlyasdescribedinthismanual
Package Contents/Tools Required
Package includes:Amana® 2246003thermostatonbase,thermostatcover,wiringlabels,screws
andwallanchors,Installation,OperationandApplicationGuide
Tools required for installation:Drillwith3/16”bit,hammer,screwdriver
Installation, Operation &
Application Guide
www.amana-ptac.com
2246003
Non-Programmable Electronic Thermostat
Electric Heat or HP, Manual Changeover, Hardwired
• Congurable
• 2-Stage Heat Pump Systems
• 1-Stage Electric Heat
• Backlit Display
• Field Calibration Feature
• Relay Outputs
(minimum voltage drop in thermostat)
• Ideally Suited for:
–Residential(NewConstruction/Replacement)
–LightCommercial
Parts Diagram
RESET
LEFT RIGHT
FanSwitchModeSwitch
Left
Button
Right
Button
ResetSwitch
LargeBacklitDisplay
UpButton
DownButton
ELECTRICAL SHOCK HAZARD – Turn off power at the main service panel by removing
the fuse or switching the appropriate circuit breaker to the OFF position before
removing the existing thermostat.
IMPORTANT: Thermostatinstallationmustconformtolocalandnationalbuildingand
electricalcodesandordinances.
 Note:Mount the thermostat about four feet above the oor. Do not mount the thermostat
on an outside wall, in direct sunlight, behind a door, or in an area affected by a vent
or duct.
1.Turnoffpowertotheheatingandcoolingsystembyremovingthefuseorswitchingtheappropriate
circuitbreakeroff.
2. Toremovecover,insertandtwistacoinorscrewdriverintheslotsontopofthethermostat.
3. Putthermostatbaseagainstthewallwhereyouplantomountit(Besurewireswillfeedthrough
thewireopeninginthebaseofthethermostat).
4. Marktheplacementofthemountingholes.
5. Setthermostatbaseandcoverawayfromworkingarea.
6. Usinga3/16”drillbit,drillholesintheplacesyouhavemarkedformounting.
7. Useahammertotapsuppliedanchorsinmountingholes.
8. Alignthermostatbasewithmountingholesandfeedthecontrolwiresthroughwireopening.
9. Usesuppliedscrewstomountthermostatbasetowall.
10.Insertstripped,labeledwiresinmatchingwireterminals.See“WiringDiagrams”sectionofthis
manual.
 CAUTION! : Besureexposedportionofwiresdoesnottouchotherwires.
11. Gentlytugwiretobesureofproperconnection.Doublecheckthateachwireisconnectedtothe
properterminal.
12.Sealholeforwiresbehindthermostatwithnon-ammableinsulationorputty.
13.Replacecoveronthermostatbysnappingitinplace.
14.Turnonpowertothesystematthemainservicepanel.
15.Testthermostatoperationasdescribedin“TestingtheThermostat”.
To Install Thermostat
Terminal Designator Descriptions
 R – 24VAChot
 C – 24VACcommon
 O/B – Reversingvalve
 Y – 1ststagecool,1ststageHPheatforHP
 W – 2ndstageheatforHP,1ststageelectricheat
 GH – FanHigh
 GL – FanLow
Wiring Diagram Conversions
Cool & Electric Heat Heat Pump
Output Chart
1ST Cool 1ST Heat 2ND Heat
HSo=HeatPump(coolactivereversingvalve)
Y,GL,O Y,GL Y,GL,W
HSb=HeatPump(heatactivereversingvalve)
Y,GL Y,GL,B Y,GL,B,W
HSE=ElectricHeat
Y,GL W,GL W,GL
Note:GL will be on during heating and cooling cycle when fan switch is set to Auto
FanHigh
FanLow
Heat
Compressor
X
Former
ReversingValve
AuxiliaryHeat
Compressor
FanHigh
FanLow
X
Former

ROOMSET
8. Room temperature offset(+9°Fto-9°F)(+4.5°Cto-4.5°C)
 Adjusttocalibratedisplayedroomtemperaturetomatchactualroom
temperature.
 Note:When not set to 0, ROOM will display.
 Pressthedownorupbuttontoselect.
 SlideMode switchtoHeatorCooltoexitcongurationmode..
SET
7. Minimum Cool Setpoint(45°Fto90°F)(7.0°Cto32.0°C)
 AdjusttocontroltheminimumCoolsettemperatureallowed.
 Pressthedownorupbuttontoselect.
 PresstheRIGHT buttontoadvancetothenextscreen.
SET
6. Maximum Heat Setpoint(45°Fto90°F)(7.0°Cto32.0°C)
 AdjusttocontrolthemaximumHeatsettemperatureallowed.
 Pressthedownorupbuttontoselect.
 PresstheRIGHT buttontoadvancetothenextscreen.
5. Staged Off Outputs(showsonlyforHP)
 Selectwhethertheoutputsforheatingandcoolingarestagedoff
independentlyoraresatisedsimultaneously.
 1= EconomyMode–Outputsarestagedonandoffinaccordancewithset
pointanddifferential.
 0= ComfortMode–Outputsarestagedonandandallstagescycleoff
simultaneouslywhensetpointissatised.
 Pressthedownorupbuttontoselect.
 PresstheRIGHT buttontoadvancetothenextscreen.
ROOM
 CAUTION! : Donotuseairconditioningwhentheoutdoortemperatureisbelow50
degrees.Thiscandamageyourairconditioningsystemandcausepersonal
injuries.
1. MovetheHigh/Auto/LowswitchtotheAutoposition.
2. MovetheCool/Off/Heat switchtoHeatorCool,dependingontheseason.
Starting the Thermostat
3. Temperature Differential – Stage 1 – (1°F to 5°F) (0.5°C to 2.5°C)
Setthenumberofdegreesbetweenyour“setpoint”temperatureandyour“turn
on”temperatureforrststage.
 Pressthedownorupbuttontosetdifferentialvalue.
 PresstheRIGHT buttontoadvancetothenextscreen.
DIFF
Conguration Mode Settings
ThesetupscreensforCongurationModeareasfollows:
1. Temperature Scale (F or C) –ChooseFahrenheitorCelsius.
 Pressthedownorupbuttontoselect.
 PresstheRIGHT buttontoadvancetothenextscreen.
DIFF
4. Temperature Differential – Stage 2 – (1°F to 5°F) (0.5°C to 2.5°C)(showsonlyforHP)
Setthenumberofdegreesbetweenwhenstage1turnsonandstage2turnson.
 Pressthedownorupbuttontosetdifferentialvalue.
 PresstheRIGHT buttontoadvancetothenextscreen.
Configuration Mode
ThecongurationmodeisusedtosettheAmana® 2246003tomatchyourheating/coolingsystem.
ToconguretheAmana® 2246003,performthefollowingsteps:
1. SlidetheModeswitchtotheOFFposition.
2. Removethecoverofthethermostatbygentlypullingononeofthecorners.
3. SimultaneouslyholdtheLEFT &RIGHT buttonsinfor2secondswhiletheAmana® 2246003isin
OFFmode.
4. Pressthedownorupbuttontochangesettingswithineachscreen.
5. PresstheRIGHT buttontoadvancetothenextscreen.
 Note:The LEFT button will return you to the previous screen.
6. Toexitcongurationmode,slidetheModeswitchtoHeatorCool.
2. Heating System
HSo – Heatpump,coolactivereversingvalve
HSb – Heatpump,heatactivereversingvalve
HSE – Electricheatsystem
Oncethethermostatisinstalled,itshouldbethoroughlytested.
CAUTION!: Do not energize the air conditioning system when the outdoor temperature is
below 50 degrees. It can result in equipment damage or personal injury.
Testing the Thermostat
Mode of Operation
TheAmana® 2246003isathermostatfor24VACsystems.
Heat Pump Operation
Thethermostatactivatestheheatpumpwhentheroomtemperatureisbelowtheheatset
temperature(bythedifferentialtemperature).Auxiliaryheatwillbeactivatediftheroomtemperature
continuestodrop.Theheatoutputsarestagedoff(congurable,setting5)astheroomtemperature
increases.Thethermostatwillnotletthecompressorcomeonforfourminutesafteritturnsoff.This
protectsyourcompressor.
Electric Heat Operation
Thethermostatactivatedtheelectricheatwhentheroomtemperatureisbelowtheheatset
temperature(bythedifferentialtemperature).Theheatisturnedoffwhentheroomtemperatureraises
toonedegreeabovetheheatsetpointtemperature.
Whentheroomtemperatureisgreaterthanthecoolsettemperature(bythedifferentialtemperature),
thecoolingdeviceisactivated.Thethermostatwillnotletthecompressorcomeonforfourminutes
afteritturnsoff.Thisprotectsyourcompressor.
TheAmana® 2246003hasthefollowingoperatingmodes: Cool , Off , Heat .InOFFmode,the
thermostatwillnotturnonheatingorcoolingdevices.IntheHeatmode,thethermostatcontrolsthe
heatingsystem.IntheCoolmode,thethermostatcontrolsthecoolingsystem.Theindoorfancanbe
turnedoninalloperatingmodesusingtheFanswitch.
• Set fan to HIGH:forcontinuoushighspeedoperation
• Set fan to LOW:forcontinuouslowspeedoperation
• Set fan to AUTO:forlowspeedfanoperationonlyduringaheatorcoolcycle
Troubleshooting
Symptom Remedy
Nodisplay Checkfor24VACatthermostat;displayisblankwhen24VACisnot
present
Systemfandoesnotcomeon
properly
Verifywiringiscorrect
Thermostatturnsonandofftoo
frequently
Adjusttemperaturedifferential(see“TemperatureDifferential,”Stage1,
Step3)
Fanrunscontinuously CheckfanLow/Auto/HIghswitch.LoworHighpositionrunsindoorfan
continuously
Roomtemperatureisnotcorrect Verifywallholeispluggedwithputtyorinsulation;calibratethermostat
(see“Conguration,”Step8)
ROOMdisplays Roomtemperatureoffsetisnotzero(see“Conguration,”Step8)
Auxiliaryheatnotonsoonenough Adjustdifferentialfor2ndstageheatingifrequired(seeConguration,
Steps3&4)
Problemnotlistedabove PresstheResetbuttononce;displaywillberefreshed
CoolOffHeat
Cool Test
1. SlideModeswitchtoCoolmode.
2. Adjustsettemperaturesoitis5degreesbelowroomtemperature.
3. Airconditioningshouldcomeonwithinafewseconds.
4. Adjustthesettemperature2degreesabovetheroomtemperatureandtheA/Cshouldturnoff.
Theremaybeafandelayonyoursystem.
Note:There is a four minute time delay to protect the compressor after it turns off. To
temporarily bypass the four minute delay, slide the Mode switch to OFF for 2 seconds
and then back to Cool.
CoolOffHeat
Heat Test
1. SlideModeswitchtoHeatmode.
2. Adjustthesettemperaturesoitis5degreesabovetheroom
temperature.
3. Heatshouldcomeonwithinafewseconds.
4. Adjustthesettemperaturesoitis2degreesbelowtheroom
temperatureandtheheatshouldturnoff.Theremaybeafandelayonyoursystem.
 Note:For Heat pumps, there is a four minute time delay to protect the compressor after it turns
off. To temporarily bypass the four minute delay, slide the Mode switch to OFF for 2
seconds and then back to Heat.
LowAutoHighLowAutoHigh
LowAutoHigh
LowAutoHighLowAutoHigh
Fan Test
1. SlideFanswitchtoHighposition.
2. Indoorfanturnsoninhighspeed.
3. SlideFanswitchtoLowposition.
4. Indoorfanturnsoninlowspeed.
5. SlideFanswitchtoAutoposition.
6. Indoorfanturnsoff.
LIAF173