Mitsubishi Electric Mr.SLIM PEAD-A24AA5 Manuel D'installation page 14

8. Electrical work
Function table 1
Select unit number 00
Mode
Power failure automatic recovery *1
(AUTO RESTART FUNCTION)
Indoor temperature detecting
LOSSNAY connectivity
Power voltage
Auto mode
Function table 2
Select unit numbers 01 to 04 or all units (AL [wired remote controller]/07 [wireless remote controller])
Mode
Filter sign
External static pressure
*1 When the power supply returns, the air conditioner will start 3 minutes later.
Note: When the function of an indoor unit were changed by function selection after the end of installation, always indicate the contents by entering a
appropriate check filed of the tables.
9. Test run
9.1. Before test run
 After completing installation and the wiring and piping of the indoor and
outdoor units, check for refrigerant leakage, looseness in the power supply
or control wiring, wrong polarity, and no disconnection of one phase in the
supply.
 Use a 500-volt megohmmeter to check that the resistance between the
power supply terminals and ground is at least 1.0 MΩ
 Do not carry out this test on the control wiring (low voltage circuit)
terminals.
Warning:
Do not use the air conditioner if the insulation resistance is less than 1.0 MΩ.
Insulation resistance
After installation or after the power source to the unit has been cut for an extended
period, the insulation resistance will drop below 1 MΩ due to refrigerant
accumulating in the compressor. This is not a malfunction. Perform the following
procedures.
1. Remove the wires from the compressor and measure the insulation resistance of
the compressor.
2. If the insulation resistance is below 1 MΩ, the compressor is faulty or the
resistance dropped due the accumulation of refrigerant in the compressor.
3. After connecting the wires to the compressor, the compressor will start to warm up
after power is supplied. After supplying power for the times indicated below,
measure the insulation resistance again.
• The insulation resistance drops due to accumulation of refrigerant in the
compressor. The resistance will rise above 1 MΩ after the compressor is
warmed up for two to three hours.
(The time necessary to warm up the compressor varies according to
atmospheric conditions and refrigerant accumulation.)
• To operate the compressor with refrigerant accumulated in the compressor, the
compressor must be warmed up at least 12 hours to prevent breakdown.
4. If the insulation resistance rises above 1 MΩ, the compressor is not faulty.
14
Settings
Not available
Available
Indoor unit operating average
Set by indoor unit’s remote controller
Remote controller’s internal sensor
Not Supported
Supported (indoor unit is not equipped with outdoor-air intake)
Supported (indoor unit is equipped with outdoor-air intake)
240V
220V, 230V
Energy saving cycle automatically enabled
Energy saving cycle automatically disabled
Settings
100 Hr
2500 Hr
No filter sign indicator
Setting no. of
External static pressure
mode no. 08
35 Pa [0.14 in. WG]
50 Pa [0.20 in. WG] (before shipment)
70 Pa [0.28 in. WG]
100 Pa [0.40 in. WG]
150 Pa [0.60 in. WG]
Mode no.
01
02
03
04
05
Mode no.
07
Setting no. of
mode no. 10
08
2 1
3 1
1 2
2 2 10
3 2
Caution:
• The compressor will not operate unless the power supply phase connection
is correct.
• Turn on the power at least 12 hours before starting operation.
- Starting operation immediately after turning on the main power switch can result in
severe damage to internal parts. Keep the power switch turned on during the
operational season.
9.2. Test run
 Refer to the installation manual that comes with each remote controller for
details.
Setting no. Initial setting Check
1 (*1)
2
1
2
3
1
2
3
1
2
1
2
Setting no. Initial setting Check
1
2
3
1
2
3
1
2
3
or other mark in the