Mitsubishi MCCH1 Installation Manual download pdf (Page 13)

Maintenance mode operation procedures

(1) Press the

TEST

button for three seconds to

activate the maintenance mode.

(2) Press the TEMP. buttons to set the refrigerant address.

MAINTENANCE

(3) Select the data you want to display.

ON/OFF

Compressor

information

COMP ON

x10 HOURS

COMP ON

x100 TIMES

COMP ON

CURRENT (A)

Cumulative

operation time

ON/OFF

number

Operation

current

Display A

Display B

Display A

OUTDOOR UNIT

H·EXC. TEMP

OUTDOOR UNIT

OUTLET TEMP

OUTDOOR UNIT

OUTDOOR TEMP

Heat exchanger

temperature

Comp discharge

temperature

Outdoor ambient

temperature

Display A

Outdoor unit

information

INDOOR UNIT

INLET TEMP

INDOOR UNIT

H·EXC. TEMP

INDOOR UNIT

FILTER USE H

Indoor room

temperature

Heat exchanger

temperature

Filter operation

time

Display A

Indoor unit

information

* The filter operation time displayed is the number of hours the filter has been

used since the filter reset was performed.

(4) Press the

FILTER

button.

(5) The data is displayed in C.

(Airflow temperature display example)

Flashing

Waiting for

response

Approx.

10 sec.

64 °C

* Repeat steps (2) to (5) to check another date.

(6) Press the

TEST

button for three seconds or press the

ON/OFF

button to

deactivate the maintenance mode.

Stable operation

Using the maintenance mode, the operation frequency can be fixed and the op-

eration can be stabilized. If the air conditioner is stopped, use the following proce-

dure to start this operation.

COOL

STABLE MODE

HEAT

STABLE MODE

CANCEL

Stable cooling

operation

Stable heating

operation

Stable operation

cancellation

Display A

Press the

MODE

button to select the operation mode.

Press the

FILTER

button.

Waiting for stable

operation

Display D

Stable

operation

10-20 min.

* You can check the data using steps (3) to (5) of the maintenance mode opera-

tion procedures while waiting for the stable operation.

9. Easy maintenance function

By using the maintenance mode, you can display many types of maintenance data

on the remote controller such as the heat exchanger temperature and compressor

current consumption for the indoor and outdoor units.

This function can be used whether the air conditioner is operating or not.

During air conditioner operation, data can be checked during either normal operation

or maintenance mode stable operation.

* This function cannot be used during the test run.

* The availability of this function depends on the connecting outdoor unit. Refer to the

brochures.

C B

Display example (Comp discharge temperature 64 °C)

Display C

1 2 ... 8 9 10 11 12 13 14 15 16

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Mitsubishi MCCH1 Installation Manual Page 13

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