Function Buttons; Display - Lennox MHA Series Manual

Function Buttons

• Up arrow button. Press to increase the temperature
setpoint or to scroll through settings options.
• On/Off button. Press to turn the system on or off.
ON/OFF
MODE
FAN
SLEEP
TURBO
Figure 5. Remote Control Buttons
• Mode button. Press to scroll through the operation
modes:
Auto → Cool → Dry → Heat → Fan.
• Fan speed. Press to scroll through the fan speeds:
Auto → Low → Med → High.
Sleep button. Press to activate "night-mode". This will
•
automatically increase (cooling) or decrease (heating)
the setpoint 2°F (1°C) increment per hour for the first
two hours. The modified setpoint will be set for five
hours. After seven total hours the indoor unit will turn
off.
NOTE: SLEEP mode is only available when the unit is in
COOL, HEAT or AUTO mode.
• Turbo button. Press to active turbo mode. In both
heating and cooling modes only, the indoor unit will
ramp up to reach the setpoint more quickly. After
reaching the setpoint or after 30 minutes, the indoor
unit will resume the previous operating conditions.
• Self Clean button. Press to activate self cleaning
mode. In cooling or dry mode only, the indoor unit will
temporarily change operation to allow condensate on
the indoor unit coil to evaporate, and then will return to
the previous operating conditions.
• Down arrow button. Press to decrease the tempera-
ture setpoint or scroll through settings options.
• Silence button. Press and release to activate quiet
mode operation. The indoor unit will change operation
to provide the quietest sound possible.
NOTE: Quiet mode operation may result in insufficient
cooling or heating capacity. Press and release the
Silence button again to stop quiet mode operation.
SILENCE
FP
TIMER
ON
TEMP
TIMER
OFF
SWING DIRECT
LED FOLLOW
SELF
ME
CLEAN
Frost Prevention Mode
• FP button. Press and hold for two seconds to acti-
vate frost prevention mode. In heating mode only, the
indoor unit will operate at a 46°F set point and the in-
door unit display will show "FP". To cancel, push the
"ON/OFF", "SLEEP", "FP", "MODE", "FAN SPEED"
or "UP/DOWN" buttons.
• Timer ON button. Press to set the number of hours of
delay before the indoor unit begins operation.
• Timer OFF button. Press to set the number of hours
of delay before the indoor unit stops operation.
• Swing button. Press once to initiate louver up and
down oscillation. Press again to stop louver oscillation.
Louvers remain in place where stopped. Not available
in all indoor unit models.
• Direct (Direction) button. Press to move louvers up
and down in 6 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 Me button. Press to activate the wireless
remote air temperature sensor. This will also transfer
the temperature sensing function from the indoor unit
to the remote. The indoor unit's air temperature sen-
sor 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 ob-
struct the signal of the remote controller during Follow
Me operation.

Display

Remote Controller ON
Transmitting Signal Display
Operation Modes
Set Point or Room Temperature
Figure 6. Remote Display
• Remote controller On. Icon displays to indicate that
the remote controller is on.
5
Follow Me
Timer ON
Timer OFF
Not Used
Battery Charge Status
Night Mode
Follow Me
Not Used
Fan Speed
Not Used