Test Run; Before Test Run - Mitsubishi Electric Mr.Slim PLA-RP BA Serie Manual De Instalación

6. Electrical work
Manual vane angle
Ref. address
Unit No.
Identify unit Check button
Input display:
Cur.
F1 F2
Manual vane angle
Ref. address
Unit No.
The air conditioner with the
vane pointing downward is
the target air conditioner.
Input display:
F1
Manual vane angle
There is no response from
the target device.
Confirm the state of the air
conditioner.
Input display:
F1 F2

7. Test run

7.1. 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 sup-
ply 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.
7.. Test run
7..1. Using wired remote controller.
■ Make sure to read operation manual before test run. (Especially items to secure safety)
Step 1 Turn on the power.
● Remote controller: The system will go into startup mode, and the remote controller power lamp (green) and "PLEASE WAIT" will blink. While the lamp and message
are blinking, the remote controller cannot be operated. Wait until "PLEASE WAIT" is not displayed before operating the remote controller. After the power is turned on,
"PLEASE WAIT" will be displayed for approximately 2 minutes.
● Indoor controller board: LED 1 will be lit up, LED 2 will be lit up (if the address is 0) or off (if the address is not 0), and LED 3 will blink.
● Outdoor controller board: LED 1 (green) and LED 2 (red) will be lit up. (After the startup mode of the system finishes, LED 2 will be turned off.) If the outdoor controller
board uses a digital display, [- ] and [ -] will be displayed alternately every second.
If the operations do not function correctly after the procedures in step 2 and thereafter are performed, the following causes should be considered and eliminated if they
are found.
(The symptoms below occur during the test run mode. "Startup" in the table means the LED display written above.)
Symptoms in test run mode
Remote Controller Display
Remote controller displays "PLEASE WAIT",
and cannot be operated.
After power is turned on, "PLEASE WAIT" is
displayed for 3 minutes, then error code is dis-
played.
No display appears even when remote control-
ler operation switch is turned on. (Operation
lamp does not light up.)
Display appears but soon disappears even
when remote controller is operated.
Address Check
F3 F4
F2 F3 F4
F3 F4
OUTDOOR BOARD LED Display
< > indicates digital display.
After "startup" is displayed, only green lights up.
<00>
After "startup" is displayed, green(once) and
red(once) blink alternately. <F1>
After "startup" is displayed, green(once) and
red(twice) blink alternately. <F3, F5, F9>
After "startup" is displayed, green(twice) and
red(once) blink alternately. <EA. Eb>
After "startup" is displayed, only green lights up.
<00>
After "startup" is displayed, only green lights up.
<00>
Confirmation procedure
1 First, confirm by setting "Ref. address" to 0 and "Unit No." to 1.
• Move the cursor to "Ref. address" or "Unit No." with the [F1] button to select.
• Select the refrigerant address and the unit number for the units to whose
vanes are to be fixed, with the [F2] or [F3] button, and press the [SELECT]
button.
• Ref. address: Refrigerant address
• Unit No.: 1, 2, 3, 4
Press the [F4] button to confirm the unit.
2 Change the "Unit No." in order and check each unit.
• Press the [F1] button to select "Unit No.".
Press the [F2] or [F3] button to change the "Unit No." to the unit that you want
to check, and then press the [F4] button.
• After pressing the [F4] button, wait approximately 15 seconds, and then check
the current state of the air conditioner.
→ The vane is pointing downward. → This air conditioner is displayed on the
remote controller.
→ All outlets are closed. → Press the [RETURN] button and continue the op-
eration from the beginning.
→ The messages shown to the left are displayed. → The target device does
not exist at this refrigerant address.
• Press the [RETURN] button to return to the initial screen.
3 Change the "Ref. address" to the next number.
• Refer to step 1 to change the "Ref. address" and continue with the confirma-
tion.
► Do not carry out this test on the control wiring (low voltage circuit) termi-
nals.
Warning:
Do not use the air conditioner if the insulation resistance is less than 1.0 MΩ.
• After power is turned on, "PLEASE WAIT" is displayed for 2
minutes during system startup. (Normal)
• Incorrect connection of outdoor terminal block (R, S, T and S
S , S .)
2 3
• Outdoor unit's protection devise connector is open.
• Incorrect wiring between the indoor and outdoor unit (Polarity
is wrong for S , S
1 2
• Remote controller transmission wire short.
• There is no outdoor unit of address 0. (Address is other than 0.)
• Remote controller transmission wire open.
• After canceling function selection, operation is not possible for
about 30 seconds. (Normal)
Cause
, S .)
3
,
1
13