Lennox MCA Series Service Manual

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• Direct (Direction)button.Presstomovelouversup
anddowninsixdegreeincrements.Louversremainin
placewherestopped.
• LEDbutton.PresstheLED button to turn on the indoor
unitdisplay(onunitswithdisplay).Pressthebutton
againtoturnoffthedisplay.
• Follow (Follow Me) button.Presstoactivatethe
wirelessremote’sairtemperaturesensor.Thiswill
alsotransferthetemperaturesensingfunctionfrom
theindoorunittotheremote.Theindoorunit’sair
temperaturesensorwillbedisabled.Theindoorunit
willregulatetheroomtemperaturebasedonthe
temperaturesensorintheremotecontroller,ratherthan
the sensor in the indoor unit.
Theremotecontrollerwillsendtheindoorunitasignal
everythreeminutes.Iftheindoorunitdoesn’treceive
thesignalforsevenminutes,orifthebuttonispressed
again,theFollow Mefunctionwillterminate.
Theremotecontrollermustremainpointedtowardthe
indoorunitandmustbewithin26feet(8meters)of
theunit.Donotremovethecontrollerfromtheroom
orobstructthesignaloftheremotecontrollerduring
Follow Meoperation.
6.4. Display
See “Figure 11. Remote Controller Display” on page 11
forillustrationofremotecontrol.
• Remote controller On. Icondisplaystoindicatethat
theremotecontrollerison.
• Transmitting display.Iconblinksoncewhenasignal
issentfromthewirelessremotecontroller.
• Operation mode.Theseiconsshowthecurrentmode
ofoperation.Pressthemodebuttontoscrollthrough
theoperationmodes:
Cool→Dry→Fan.
• Setpoint or Room Temperature.Displaysthesetpoint
temperatureduringnormaloperation.Displaysthe
roomtemperaturewheninFollowmemode.Adjustthe
setpointwithupanddownarrowbuttons.Nodisplay
whenunitisinfanmode.
• Timer ON/OFF.Theseiconslightuptoindicatethat
theindoorunithasatimedauto-startorauto-stopset-
up.
• Battery charge status.Icondisplayschargestatus
ofwirelessremotecontrollerbatteries.Onlyappears
whenbatteryislow.
• Sleep mode.Icondisplaystoindicatethatsleepmode
operationison.
• Follow me.Thisicondisplayswhentheair
temperaturesensorinthewirelessremotecontrolleris
thesensorbeingusedbytheindoorunit.Whenthis
functionisoff,theindoorunitusesabuilt-insensor.
Whenthefunctionissettoon,thisoptionmayhelpin
maintainingaclosercomfortlevelinmostcases.
• Fan speed.Displaysthecurrentfanspeed.
6.5. Operations
6.5.1. Start/Stop Operation
PresstheLED power button.
• Controller ON:LEDpowerbuttonlitbrightly.
• Controller OFF:LEDpowerbuttonnotlit.
6.5.2. Select Fahrenheit or Celsius
PressandholdtheUpandDownbuttonsatthesametime
forthreesecondstotogglebetweenFahrenheitandCelsius.
To Set the Operation Mode
PresstheModebuttontoscrollthroughthemodeselections.
• Cool–Systemoperatesincoolingmode.
• Dry–Systemremoveshumidityaccordingtopreset
conditions(fanspeedandsetpointtemperature).
Cannotadjustfanspeed.
NOTE: Temperature will be 6-8 degrees colder if this
mode is used.
• Fan–ThisisforFanonly,nocooling.
Toset(orchange)theroomtemperaturesetting(setpoint)
Presstheupanddownarrowbuttonstoadjustthesetpoint.
6.5.3. Cool/Fan mode
1. PresstheModebuttontoselecteitherCool or Fan.
2. Adjustthetemperaturesetpointusingupanddownarrow
buttons(range62°F–86°F).
3. PresstheFan SpeedbuttontoselectAuto,Low,Med,
or Highfanspeed.
NOTE: Temperature set point is not displayed in fan
mode.
6.5.4. Dry Mode
1. PressthePowerbutton.AnLEDlightontheindoorunit
displays.
2. PresstheModebuttontoselectDry.
3. Adjustthetemperaturesetpointusingupanddownarrow
buttons.
NOTE: Temperature will be 6-8 degrees colder if this
mode is used.
NOTE: Fan speed is not adjustable in dry mode.
6.5.5. Timer Operation
TimerONandTimerOFFareusedtoturnonandturnoffthe
indoorunitatselectedintervals.
6.5.6. Timer ON Operation
1. PresstheTimer ONbutton.TheTimerONicon,thelast
auto-ontime,and“h”willdisplay.
2. Pressthe Timer ON buttonagain to setthe amount of
timebeforetheindoorunitbeginsoperation.Eachpress
will increase the time in half hour increments until 10

Lennox MCA Series Specifications

General

Brand	Lennox
Model	MCA Series
Category	Air Conditioner
Language	English