Test Run Method; Ma Remote Controller (Par-21Maau) - Mitsubishi Electric PURY-HP72 Service Handbook

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[6-7 Test Run Method ]

6-7

Test Run Method

6-7-1

MA Remote Controller (PAR-21MAAU)

The figure shows an MA remote controller (PAR-21MAAU).
Set Temperature buttons
Down
Up
Operation Mode button
Louver button
(
Operation button)
To preceding
operation number.
Ventilation button
(
Operation button)
To next operation
number.
Turn on the main power.
Press the Test button twice.
Press the Operation Mode button.
Switch to cooling (or heating) operation by pressing the Operation Mode button.
Make sure that cold (or warm) air blows out. On the same refrigerant system, make the operation mode the same.
Press the Fan Speed button.
Change the air flow direction by pressing the Vertical Air Direction button
Make sure that the air flow direction changes with each pressing of the button.
Confirm the operation of outdoor unit fan.
Confirm the operation of all interlocked equipment, such as ventilation equipment.
Cancel the test run by pressing the ON/OFF button.
Note 1: Refer to the following pages if an error code appears on the remote controller or when the unit malfunctions.
2: The OFF timer will automatically stop the test run after 2 hours.
3: The remaining time for the test run will be displayed in the time display during test run.
4: The temperature of the liquid pipe on the indoor unit will be displayed in the room temperature display window on the remote
controller during test run.
5: On some models, "NOT AVAILABLE" may appear on the display when the Vane Control button is pressed. This is normal.
6: If an external input is connected, perform a test run using the external input signal.
7: Test run all systems for at least 15 minutes to detect possible system errors.
HWE13080
TIME SUN MON TUE WED THU FRI SAT
TIMER
AFTER
ERROR CODE
F C
F C
ONLY1Hr.
TEMP.
MENU
ON/OFF
BACK
MONITOR/SET
DAY
PAR-21MAAU
OPERATION
CLOCK
Operation procedures
"PLEASE WAIT" appears on the LCD for up to five minutes. Leave
the power on for 12 hours. (Energize the belt heater.)
Operation mode display "TEST RUN" and OPERATION MODE are
displayed alternately.
Make sure that the air is blowing out.
Make sure that the fan speed changes with each pressing of the button.
Stop
- 160 -
Hr
ON
AFTER
OFF
FUNCTION
FILTER
WEEKLY
SIMPLE
AUTO OFF
ON/OFF
FILTER
CHECK
TEST
CLEAR
or the Louver button.
ON/OFF button
Fan Speed button
Test Run button
Vertical Air Direction button
GB

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Questions and answers

roque
March 14, 2025

what is the set up mode for recovery, and charging of sys?

Ariel Lituma
April 15, 2025

Why can control my indoor unit with centralize control

1 comments:
Mr. Anderson
April 15, 2025

You may not be able to control your Mitsubishi Electric PURY-HP72 indoor unit with centralized control for the following reasons:

1. The power jumper connector on the outdoor unit may not be correctly set. It should be connected to CN40 on only one outdoor unit.

2. The central control switch (SW5-1) on the control board of all outdoor units must be set to "ON."

3. Address settings may not be correctly configured. The main indoor unit should be assigned the smallest address (e.g., IC00), and correct port number settings are required.

4. If using a remote controller alone, an interlock setting from the remote controller is needed.

5. Both ME and MA remote controllers cannot be connected to the same indoor unit group.

6. System controller power issues may occur if the outdoor unit fan rotates due to external forces, causing the system controller to detect an error.

7. Improper wiring or incorrect voltage at TB7 may also prevent operation.

Check each of these conditions to ensure proper centralized control.

This answer is automatically generated

Ariel Lituma
April 15, 2025

Why can’t control indoor unit with centralize control and stay the MA control set up can’t. Control the mode

1 comments:
Mr. Anderson
April 15, 2025

The Mitsubishi Electric PURY-HP72 indoor unit cannot be controlled with centralized control and the mode control setup does not function due to the following reasons:

1. Central control is not possible if the indoor/outdoor transmission line is used, even if TB7 terminals are daisy-chained.
2. Shielded cables must be used, and the connection must only be made after confirming the voltage is below 20 VDC.
3. Improper connection of the transmission line for centralized control, such as not correctly daisy-chaining terminals M1 and M2 or not short-circuiting the earth and S terminals on TB7.
4. If a power supply unit is not connected to the centralized control line, the power jumper connector must be moved from CN41 to CN40 on one outdoor unit—if this is not done, mode control will not function.
5. Overlapped indoor unit addresses or noise interference on the remote controller lines can also prevent proper control.
6. Failure to set one MA remote controller to MAIN or exceeding its capacity can result in control failure.

All these factors must be correctly configured for centralized and mode control to function properly.

This answer is automatically generated

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