Lennox Mini-Split Systems Wireless Indoor Unit Controller

Shipping and Packing List

Package 1 of 1 contains:

• 1 - Wireless Controller
• 2 - AAA batteries
• 1 - Remote controller holder with mounting screw

Important Safety Information

❗ Frequent changes to operating mode may cause system malfunction. Allow at least one minute between mode changes to allow the system to stabilize.

General

The MOSTAT60Q-1 mini-split wireless controller is a wireless local controller for Lennox mini-split indoor units.

Requirements

Using the Remote Controller

• Point the remote controller directly at the indoor unit.
• Stand within 26 feet (8 meters) of the indoor unit.
• Do not block the signal between the remote controller and indoor unit. The remote controller will not function without a clear line of sight to the indoor unit.
• Do not submerge the remote controller in liquid.
• Do not expose to direct sunlight.
• Do not drop or step on the remote controller.

Using the Remote Control Holder

• Use field-provided fasteners to attach the remote controller holder to any suitable vertical surface such as a wall within 26 feet (8 meters) of the indoor unit.
• Ensure that the remote controller is pointed directly at the indoor unit. If the remote controller is pointed directly toward the ceiling, it will not control the indoor unit (except cassette units if installed directly above the holder).

Specifications

? Table 1. Specifications

Function Buttons

Remote Control Layout Description: The remote control is a white, rectangular device featuring an LCD screen at the top and various buttons below. The buttons include:

• ON/OFF Button: Press to turn the indoor unit on or off.
• MODE Button: Press to scroll through the operation modes: Auto → Cool → Dry → Heat → Fan.
• FAN Speed Button: Press to scroll through the fan speeds: Auto → Low → Med → High.
• TEMP (Up/Down Arrow Buttons): Press the Up arrow button to increase the temperature setpoint or scroll through settings options. Press the Down arrow button to decrease the temperature setpoint or scroll through settings options.
• SLEEP Button: Press to activate "night-mode". This will automatically increase (cooling) or decrease (heating) the setpoint 2°F (1°C) per hour for the first two hours. The modified setpoint will be set for five hours. After seven total hours, the indoor unit will shut off. The system will remain off until the "On" button on the wireless remote is pressed.
• TURBO Button: (Not available on all indoor unit models) Press to activate turbo mode. In cooling mode 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 turn off. See "Self Clean Sequence of Operations" on page 10 for details.
• SILENCE FP Button: Press and release to activate quiet mode operation. The indoor unit will change operation to provide the quietest sound possible. Quiet mode operation may result in insufficient cooling or heating capacity. Press and release the Silence button again to stop quiet mode operation.
• FP Button: Press and hold for two seconds to activate frost prevention mode. In heating mode only, the indoor unit will operate at a 46°F setpoint and the indoor unit display (not available on all indoor unit models) will show "FP".
• 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 DIRECT Button: Press once to have the louver oscillate up and down. 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. Not available in all indoor unit models.
• LED Button: Press the LED button to turn on the indoor unit display (on units with a display). Press the button again to turn off the display.
• FOLLOW ME Button: Press to activate the wireless remote's air temperature sensor. This will 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.

Display Indicators

Description of LCD Display: The remote control's LCD screen displays various icons and information:

• Remote Controller ON: Icon displays to indicate that the remote controller is on.
• Transmitting Signal Display: Icon blinks once when a signal is sent from the wireless remote controller.
• Operation Mode Icons: Show the current mode of operation (Auto, Cool, Dry, Heat, Fan). Press the MODE button to scroll through these modes.
• Set Point or Room Temperature: Displays the setpoint temperature during normal operation. Displays the room temperature when in Follow Me mode. Adjust the setpoint with the Up & Down arrow buttons. No display when the unit is in Fan mode.
• Timer ON/OFF Icons: Light up to indicate that the indoor unit has a timed auto-start or auto-stop set up.
• Battery Charge Status: Icon displays the charge status of the wireless remote controller batteries.
• Night Mode: Icon displays to indicate that night mode operation is on.
• Follow Me: Icon displays when the air temperature sensor in the wireless remote controller is being used by the indoor unit. When this function is off, the indoor unit uses its built-in sensor.
• Fan Speed: Displays the current fan speed.
• ECO: Indicates energy-saving mode.
• SET TEMP: Indicates temperature setting mode.

Operation Instructions

Batteries

1. Remove the battery cover from the back of the remote.
2. Insert batteries into the battery compartment.
3. Replace the cover on the controller.

NOTE: ON/OFF, Timer, setpoint, fan speed, and all other functions will have to be reset whenever the batteries are completely discharged or are replaced.

WARNING:

• Do not mix old and new batteries or batteries of different types.
• Do not leave the batteries in the remote controller if the controller will not be used for an extended amount of time.
• Dispose of used batteries following local and state waste management standards.

Start/Stop Operation

Press the LED power button.

• Controller ON: LED power button lit brightly.
• Controller OFF: LED power button not lit.

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.

• Auto: System operates in cooling or heating mode as determined by the setpoint and the room temperature. The use of Auto mode for multi-zone units is not recommended. All zones should be in the same mode of operation to ensure there is not a conflict error mode.
• Cool: System operates in cooling mode.
• Dry: System removes humidity according to preset conditions (fan speed and setpoint temperature, not a humidistat sensor). Cannot adjust fan speed.
• Heat: System operates in heating mode.
• Fan: This mode is for fan operation only, with no heating or cooling.

To Set (or Change) the Room Temperature Setting (Setpoint)

Press the Up and Down arrow buttons to adjust the setpoint.

Auto Mode Operation

1. Press the Power button; an LED light on the indoor unit displays.
2. Press the Mode button until the display shows AUTO.
3. Adjust temperature setpoint using Up and Down arrow buttons (range 62°F – 86°F). Fan speed is auto and is not adjustable in this mode.

Cool/Heat/Fan Mode Operation

1. Press the Mode button to select Cool, Heat, 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. Temperature set point is not displayed in Fan mode.

Dry Mode Operation

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. Fan speed is not adjustable in this mode.

Timer Operation

Timer ON and Timer OFF are used to turn on and turn off the indoor unit at selected intervals.

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 hours, then the increment becomes 1 hour.

Timer OFF Operation

1. Press the Timer OFF button. The Timer OFF icon, the last auto-off time, and "h" will display.
2. Press the Timer OFF button again to set the amount of time before the indoor unit stops operation. Each press will increase the time in half-hour increments until 10 hours, then the increment becomes 1 hour.

Modify Timer ON/OFF Settings

1. Press either the Timer ON button or the Timer OFF button to modify that setting.
2. Use the Up arrow and Down arrow buttons to change the timed operation intervals.
3. Set the timer to 0.0 to turn off timed operation.

Troubleshooting

Fault Codes (indoor unit)

? Table 2. Fault Codes

FCC Compliance Statement — PART 15.19

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

Self Clean Sequence of Operations

The following sequence of operations is applicable to all listed indoor units (MWMA, MWMB, MMDB, MFMA, M22, M33 and MCF).

General: The Self Clean function enables drying the indoor coil after Cool or Dry mode to avoid mold. Press the CLEAN button in Cool (including cooling in auto mode and forced cooling mode) or Dry mode to enable the self-clean function. "SC" will show in the indoor display.

Heating Pump Model Sequence:

• Compressor stop, Indoor fan turn to low speed
• Four-Valve work, compressor running (13 mins)
• Compressor stop, fan only mode (1 min)
• Quit self-clean mode, turn off the unit (2 mins)

Cooling Only Model Sequence:

• Compressor stop, Indoor fan turn to low speed (16 mins)
• Quit self-clean mode, turn off the unit