Lennox M0STAT64Q-2 - User Manual

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Summary

Setup

Set the Current Day and Time

Instructions to set the current day and time using the Timer button and +/- buttons.

Select Fahrenheit or Celsius for display

How to toggle between Fahrenheit and Celsius display modes using Back/Turbo and Copy/Follow me buttons.

Set Room Temperature Sensor Location

How to select room temperature sensing between indoor unit or controller using the Copy/Follow me button.

Key Pad Tone (beep)

Instructions to turn on/off the key pad tone using Swing and Timer buttons simultaneously.

Operation

Start;Stop Operation

How to start or stop the unit's operation by pressing the Power button.

Set the Operation Mode

How to select operation modes like Auto, Cool, Dry, Heat, or Fan using the Mode and +/- buttons.

Set the Set Point

How to adjust the desired temperature set point using the +/- buttons.

Set the Fan Speed

Instructions to adjust fan speed settings (Auto, Low, Med, High) using the Fan Speed button.

Set Child Lock Function

How to lock or unlock all controller buttons by pressing the Fan Speed button for 3 seconds.

Turn ON;OFF Turbo Function

How to activate or deactivate Turbo mode for high fan speed using the Back/Turbo button.

Set Swing Function

How to adjust louver direction and oscillation using the Swing button, including independent louver control for cassette units.

Timer and Schedules

Setup Timed Operation Start Time

Steps to set the start time for timed operation using the Timer and Confirm buttons.

Setup Timed Operation Stop Time

Steps to set the stop time for timed operation using the Timer and Confirm buttons.

Setup Timed Operation Start and Stop Time

Steps to set both start and stop times for timed operation using Timer, Confirm, and +/- buttons.

Create Schedules (up to 8 events per day)

Instructions to initiate the creation of daily schedules with up to 8 events using Timer and Confirm buttons.

Create and Setup Scheduled Events (up to 8 events per day)

Detailed steps to create and configure individual scheduled events, including time, mode, set point, and fan speed.

Copy a Schedule to a New Day

How to copy an existing daily schedule to another day using Timer, Confirm, and Copy/Follow Me buttons.

Activate and Deactivate Timed Operation

How to enable or disable the timed operation feature using the Timer and Power buttons.

Setup Days Off

How to set specific days when the unit will not operate, using Timer, Confirm, and Day Off/Del buttons.

Edit a Scheduled Event

Steps to modify an existing scheduled event's time, mode, set point, or fan speed.

Delete an Event from a Scheduled Day

Instructions to remove a specific event from a scheduled day using Timer, Confirm, and Day Off/Del buttons.

The MOSTAT64Q-2 Indoor Unit Programmable Controller (22U20) is a wired programmable local controller designed for mini-split indoor units, offering convenient timed schedules for daily operation. This device serves as a central interface for managing the comfort settings of your HVAC system, allowing users to precisely control various operational parameters.

Function Description:

The primary function of the MOSTAT64Q-2 is to provide comprehensive control over mini-split indoor units. It allows users to:

Start/Stop Operation: Easily power the indoor unit on or off with a dedicated power button.
Set Operation Mode: Choose from multiple operating modes including Auto, Cool, Dry, Heat, and Fan.
- Auto Mode: The system automatically switches between heating and cooling based on the sensed room temperature, providing adaptive comfort.
- Cool Mode: The system operates specifically in cooling mode to lower the room temperature.
- Dry Mode: This mode is designed to remove humidity from the air according to preset conditions. It's important to note that fan speed and set point temperature are fixed in this mode, and it does not use a humidistat sensor. Fan speed cannot be adjusted in Dry mode.
- Heat Mode: The system operates in heating mode to raise the room temperature.
- Fan Mode: This mode circulates air without heating or cooling, providing ventilation.
Set Setpoint Temperature: Adjust the desired room temperature within a range of 62-86°F (17-30°C) using the increase and decrease buttons.
Set Fan Speed: Control the indoor unit's fan speed, with options typically including Auto, Low, Medium, and High.
Horizontal and Vertical Swing Control: Adjust the direction of the louver and initiate continuous louver oscillation to distribute air evenly. This feature may not be available on all indoor unit models. For cassette units, individual control of the four louvers is possible, allowing for precise airflow direction.
Turbo Function: Activate a "Turbo" mode for rapid cooling. In this mode, the indoor unit fan speed is set to high for a factory-set period, quickly bringing the room to the desired temperature.
Timed Schedules: Program weekly schedules for the indoor unit, enabling automated On/Off operation and changes to operational settings (mode, set point, fan speed) for up to 8 events per day. This feature allows for energy savings and personalized comfort throughout the week.
Days Off Setup: Designate specific days within the scheduled week when the indoor unit will not operate. On these "Day Off" days, the unit will power off and remain inactive until the next day's first scheduled event. This setting is automatically removed once the designated day has passed.
Child Lock Function: Lock all controller buttons to prevent unintended changes to settings, a useful feature for households with children.
Room Temperature Sensor Location: Toggle between sensing the room temperature from the indoor unit itself or from the controller, providing flexibility in temperature measurement. When the controller is sensing the room temperature, a "Follow me" indicator will display on the screen.
Fahrenheit or Celsius Display: Switch between Fahrenheit and Celsius temperature units for display, catering to user preference.
Key Pad Tone (Beep) Control: Enable or disable the audible feedback (beep) when buttons are pressed.

Usage Features:

The MOSTAT64Q-2 is designed for ease of use with a clear display and intuitive button layout.

Display: The controller features a comprehensive display that shows the operation mode, fan speed, swing status, turbo/PTC status, temperature display (setpoint or room temperature), lock indication, room temperature, and clock. It also indicates the current day and active schedule events.
Buttons: Dedicated buttons for Swing, Timer, Day Off/Delete, Confirm, Back/Turbo, Copy/Follow me, Mode, Power, Increase (+), Decrease (-), and Fan speed (Lock) provide direct access to various functions.
Setting Current Day and Time: The controller allows users to set the current day and time, which is crucial for accurate scheduling. The controller uses a 24-hour clock.
Creating and Editing Schedules: Users can create up to 8 events per day for each day of the week. Each event can have a specific start time, operation mode, set point, and fan speed. Schedules can be edited to modify existing events.
Copying Schedules: A schedule from one day can be easily copied to other days, simplifying the setup process for consistent weekly routines.
Deleting Events: Individual events within a scheduled day can be deleted if no longer needed.
Activating/Deactivating Timed Operation: Timed operations can be activated or deactivated as required, allowing for temporary overrides or complete suspension of schedules.

Maintenance Features:

While the MOSTAT64Q-2 itself requires minimal maintenance, certain aspects are important for its longevity and proper functioning:

Battery for Time/Date Retention: The controller includes a lithium battery that stores the day and time settings in case of a power outage. Users should replace this battery when its charge is depleted to ensure continuous timekeeping.
Cleaning: The controller should be cleaned using a clean, damp cloth. It is crucial not to spray cleanser directly on or around the controller to prevent damage.
Installation Considerations: Proper installation is key to maintenance. The manual emphasizes turning off the power supply before installation, avoiding installation on outside walls or in direct sunlight, and ensuring all wiring conforms to local and national codes. The use of provided cables and avoiding excessive force during connections are also highlighted.
Error Codes: The controller provides fault codes (e.g., E1, E2, F0) that indicate specific issues such as communication errors, sensor malfunctions, or fan speed problems. These codes are valuable for troubleshooting and diagnosing potential issues with the indoor unit or the controller itself, aiding in efficient maintenance and repair by a licensed professional.

In summary, the MOSTAT64Q-2 is a user-friendly and feature-rich programmable controller that empowers users with precise control over their mini-split indoor units, enhancing comfort, energy efficiency, and overall system management.