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Mitsubishi PAR-20MAA - User Manual

Mitsubishi PAR-20MAA
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Operation Buttons Display
The unit is turned ON and OFF alternately each time the button is pressed
MODE SELECT button - used to switch the operation mode between cooling,
drying, blowing, heating and auto mode
FAN SPEED SELECT button - used to change the fan speed
VANE CONTROL button - used to change the airflow direction
RESET button
HR and MIN buttons - Buttons used to set the “hour and minute” of the current time
and timer settings
TIMER CONTROL buttons -
STOP (OFF timer): When this switch is set, the air conditioner will be automatically
stopped at the preset time
START (ON timer): When this switch is set the air conditioner will be automatically
started at the preset time
TEMPERATURE buttons set any desired room temperature
Lights up while transmission to the indoor unit is mode using switches
OPERATION MODE display - Operation mode display indicates which operation
mode is in effect
Lights up when function is set
CHECK & TEST RUN display indicates that the unit is being checked or test run
- Displays when the batteries are dead
The vertical direction of airflow is indicated
FAN SPEED display indicates which fan speed has been selected
Displays when the current time and the timer time can be changed
Displays whether timer is on or off
Displays the order of timer operation
TIMER DISPLAY - Displays when in timer operation or when setting timer
Flashes when the current time is displayed
CLOCK DISPLAY - Displays current time
SET TEMP, display indicates desired temperature set
SELECTION No. display - Displays the selection number
FUNCTION No. display - Displays the mode
UNIT No. display - Displays the number of unit
ADDRESS display - Displays the refrigerant address
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FUNCTION
ºC
ADDRESS
UNIT No.
FUNCTION No.
SELECTION No.
TEST RUN
CHECK
MODE
RESET
FAN
VANE
START
STOP
HR.
MIN
ON/OFF
TEMP
AM
PM
AM
PM
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19
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16
8
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2
1
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10
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23 - 24 - 25 - 26
EO3VER
Infrared Controller
EO3VER
Infrared Controller
User GuideUser Guide
Operation Buttons Display
ON/OFF button - The unit is turned ON and OFF alternately each time the button
is pressed
FAN SPEED SELECT button - used to change the fan speed
MODE SELECT button - used to switch the operation mode between cooling,
drying, blowing, heating and auto mode
* Incase the outdoor unit is cool only type, the heating mode is
not available
VANE CONTROL button - used to change the airflow direction
SET button
RESET button
CLOCK button
LOUVER button - This switches the horizontal fan motion ON and OFF
H and MIN buttons - used to set the hour and minute” of the current time and
timer settings
TIMER CONTROL buttons -
AUTO STOP (OFF timer): When this switch is set, the air conditioner will be
automatically stopped at the preset time
AUTO START (ON timer): When this switch is set the air conditioner will be
automatically started at the preset time
SET TEMPERATURE button sets any desired room temperature
OPERATION MODE DISPLAY - operation mode display indicates which operation
mode is in effect
The vertical direction of air flow is indicated
FAN SPEED - display indicates which fan speed has been selected
Displays whether timer is on or off
Displays the order of timer operation
TIMER DISPLAY - displays when in timer operation or when setting timer
CLOCK DISPLAY - displays current time
SET TEMP - display indicates desired temperature set
Lights up while transmission to the indoor unit is mode using switches
Blinks when model is selected
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MODEL SELECT
NOT AVAILABLE
CHECK TEST RUN
ºC
AM PM
AM PM
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16
15
11
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5
4
1
14
7
13
12
2
17
20
21
10
9
8
1
2
3
4
5
6
7
8
9
10
11
EO6VER
Infrared Controller
EO6VER
Infrared Controller
User GuideUser Guide
Operation Buttons Display
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2
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FILTER
TEMP
STAND BY
DEFROST
NOT AVAILABLE
REMOTE CONTROLLER
PAR-20MAA
ERROR CODE
ON/OFF
ON OFF
CLOCK
1Hr
TIMER SET
CENTRALLY CONTROLLED
CHECK
TEST RUN
FUNCTION
TEST
1Hr
T
FILTER
CHECK
CHECK MODE
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12
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15
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10
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3
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11
This sets the room temperature, The temperature setting can be performed in 1ºC
intervals. Setting range: Cooling 19ºC to 30ºC - Heating 17ºC to 28ºC
This switches between continuous or timer operation.
Press this button to switch between cooling, dry (dehumidify), automatic and
heating modes
This switches the louvre motion ON and OFF
This is the Lossnay interlock button
This resets the filter service indication display
This adjusts the angle of the air flow direction
This switches between the operation and stop modes each time it is pressed, the lamp
on this button lights during operation
This sets the ventilation fan speed
This sets the current time, start time and stop time
This indicates when the continuous operation and time operation modes are set.
It also displays the time for the timer operation at the same time as when it is set
This indicates the operation mode
The standby symbol is only displayed from the time the heating operation starts untill the
heated air begins to blow
This indicates when the defrost operation is performed
This indicates when a malfunction has occurred in the unit which should be checked
This displays the selected temperature
This lamp lights when electricity is supplied to the unit
This lamp lights when the filter needs to be cleaned
This lamp lights during operation, goes off when the unit stops and flashes when a
malfunction occurs
The temperature of the suction air is displayed during operation. The display range is to
39ºC. The display flashes 8ºC when the actual temperature is less than 8ºC
and flashes 39ºC when the actual temperature is greater than 39ºC
The selected fan speed is displayed
This displays the air direction
The current time, start time and stop time can be displayed in ten second intervals by
pressing the time setting button (10). The start time or stop time is always displayed
during the timer operation
PAR-20MAAPAR-20MAA
User GuideUser Guide
FILTER
TEMP
INDOOR UNIT
ADDRESS No.
STAND BY
DEFROST
NOT AVAILABLE
REMOTE CONTROLLER
PAR-S27AA
ERROR CODE OA
UNIT ADDRESS No.
CLOCK ON OFF
ON OFF
CLOCK
1Hr
TIMER SET
CENTRALLY CONTROLLED
CHECK
TEST RUN
TEST RUN
1H
T
FILTER
CHECK
CHECK MODE
PAR-S27AAPAR-S27AA
User GuideUser Guide
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5
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3
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6
Operation Buttons
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2
3
4
5
6
TURN UNIT ON\OFF
MODE KEY:
Fan only - DO NOT USE
Heating (Ideal Temp 20ºC)
Cooling (Ideal Temp 23ºC)
Dry Mode - DO NOT USE
Auto (Ideal Temp 21ºC)
SET IDEAL TEMPERATURE:
Heating 20ºC
Cooling 23ºC
TIMER - already fixed (do not adjust)
FAN SPEED - Leave in low speed
CASSETTE UNITS ONLY - Fix swing position
IF YOU ARE TOO
HOT PRESS
IF YOU ARE TOO
COLD PRESS
Question and Answer IconNeed help?

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Summary

Operation Buttons

Temperature Setting

Sets room temperature in 1°C intervals. Cooling 19-30°C, Heating 17-28°C.

Operation Mode Switching

Switches between continuous or timer operation.

Mode Selection

Switches between cooling, dry, automatic, and heating modes.

Operation;Stop Mode

Switches between operation and stop modes. Indicator lamp lights during operation.

Ventilation Fan Speed

Sets the ventilation fan speed.

Timer Setting

Sets current time, start time, and stop time.

Display Indicators

Malfunction Indicator

Indicates a unit malfunction requiring check.

Operation;Malfunction Lamp

Lights during operation, off when stopped, flashes on malfunction.

Overview

The PAR-20MAA is a remote controller designed for Mitsubishi Electric air conditioning systems, offering comprehensive control over various operational aspects of the indoor unit. This user guide outlines its functions, usage features, and maintenance indicators, ensuring efficient and comfortable climate management.

Function Description

The PAR-20MAA remote controller serves as the primary interface for users to interact with their Mitsubishi Electric air conditioning system. Its core function is to allow precise adjustment of room temperature, operational modes, fan speed, and timer settings. The controller facilitates switching between continuous and timer-based operation, providing flexibility in how the air conditioning unit functions throughout the day. Users can select from various modes, including cooling, heating, dry (dehumidify), and automatic, to suit their comfort preferences and environmental conditions.

A key feature is the ability to set the desired room temperature within specific ranges: 19°C to 30°C for cooling and 17°C to 28°C for heating, with adjustments possible in 1°C intervals. This granular control ensures that the indoor environment can be tailored to individual comfort levels. The controller also manages the airflow direction by allowing users to switch the louvre motion on and off and adjust the angle of the air flow. This helps in distributing conditioned air effectively throughout the room, preventing drafts or concentrating airflow where needed.

For systems equipped with Lossnay units, an interlock button is provided, indicating integration with ventilation systems. The controller also includes a timer set function, enabling users to program the current time, as well as start and stop times for the air conditioning unit. This feature is particularly useful for energy saving and ensuring comfort at specific times without manual intervention.

The display on the remote controller provides crucial feedback to the user. It shows the selected temperature, current time, start time, and stop time, which can be viewed in ten-second intervals. The display also indicates the operation mode, fan speed, and air direction. Furthermore, it provides status updates such as when continuous operation or timer operation modes are set, and displays the time remaining for timer operations.

Usage Features

The PAR-20MAA is designed for intuitive use, with clearly labeled buttons and a comprehensive display. The ON/OFF button is central to operation, allowing users to easily switch the unit on or off. When the unit is operating, a lamp on this button illuminates, providing a visual cue of its active status.

Mode selection is straightforward, with a dedicated button to cycle through cooling, dry, automatic, and heating modes. For temperature adjustments, up and down arrow buttons allow users to increase or decrease the set temperature. The fan speed can be adjusted using a specific button, offering control over the intensity of air circulation. The louvre motion can be toggled on or off, and the airflow direction can be fine-tuned to optimize comfort.

The timer function is a significant usage feature, allowing users to pre-program the unit's operation. By setting start and stop times, the air conditioning system can automatically turn on before arrival or turn off after departure, enhancing convenience and energy efficiency. The display shows the programmed times, ensuring users are aware of the scheduled operations.

The controller also provides visual indicators for various operational states. For instance, a standby symbol appears when the heating operation starts until the heated air begins to blow, giving users an expectation of when warmth will be felt. Similarly, an indicator lights up when defrost operation is performed, informing users about the unit's internal processes.

In the event of a malfunction, the controller displays an error code and flashes a lamp, alerting the user to an issue that requires attention. This diagnostic capability is crucial for prompt troubleshooting and maintenance. The temperature of the suction air is also displayed during operation, providing real-time information about the air being drawn into the unit. This display flashes if the actual temperature is outside the normal operating range (less than 8°C or greater than 39°C), indicating extreme conditions.

Maintenance Features

The PAR-20MAA remote controller incorporates several features that assist with the maintenance of the air conditioning system. A key maintenance indicator is the filter service indication display. When the filter needs cleaning, a specific lamp on the controller lights up, prompting the user to perform this essential maintenance task. After cleaning the filter, there is a dedicated button to reset this service indication, ensuring that the system accurately tracks the filter's usage. Regular filter cleaning is vital for maintaining air quality and the efficiency of the air conditioning unit.

The controller's ability to display error codes is a critical maintenance feature. When a malfunction occurs, an error code is shown, and an indicator lamp flashes. This immediate notification allows users or service technicians to quickly identify the nature of the problem, facilitating faster diagnosis and repair. The "CHECK TEST" button, along with the "CHECK MODE" and "TEST RUN" indicators, suggests that the controller can be used for diagnostic checks and test runs, which are invaluable for maintenance and troubleshooting by qualified personnel.

Furthermore, the controller provides information about the unit's operational status that can indirectly aid maintenance. For example, the display of the suction air temperature helps in monitoring the unit's performance. If this temperature consistently falls outside the normal range and flashes, it could indicate an underlying issue with the unit's sensors or cooling/heating capabilities, warranting further investigation.

The overall design of the PAR-20MAA, with its clear indicators and diagnostic capabilities, aims to empower users with the information needed to ensure their air conditioning system operates efficiently and reliably, while also providing crucial alerts for timely maintenance interventions.

Mitsubishi PAR-20MAA Specifications

General IconGeneral
CompatibilityMitsubishi Air Conditioners
FeaturesBacklit LCD
Operating ModesCool, Heat, Auto, Dry, Fan
Fan Speed ControlLow, Medium, High
Temperature Setting Range19°C to 30°C
Remote Control TechnologyWired
TypeWired Remote Controller
Battery TypeNot applicable
Number of BatteriesNot applicable

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