Mitsubishi Electric BDT CITY MULTI Installation And Pre-Commissioning Booklet page 62

DIP SWITCHES OUTDOOR UNITS (Y and R2 SERIES)
[5-1 Dipswitch Functions and Factory Settings ]
1) To change the settings, set SW6-10 to ON, set SW4, and press and hold SWP01 for 2 seconds or longer (OFF↔ON).
LED3 will light up when the switch setting is ON, and lights off when OFF.
Use the LED3 display to confirm that the settings are properly made.
The settings will need to be set again when the control board is replaced. Write down the settings on the electrical wiring drawing label.
2) A: OC: Only the switch on OC needs to be set for the setting to be effective.
B: OC: The switches on both the OC and OS need to be set to the same seeing for the setting to be effective.
C: OC: The switches on both the OC and OS need to be set. 
D: OC: The switch on either the OC or OS needs to be set.
3) For details, refer to the following page(s).[5-2-7 Defrost Operation Control](page 97)
4) The table below shows the combinations of the settings for items No. 897 and No. 900 and the target evaporating temperature setting that corresponds
to each combination.
Switch
No.897
5) The table below shows the combinations of the settings for items No. 964 and No. 982 and the target evaporating temperature setting that corresponds
to each combination.
Switch
No.964
6) Unless otherwise specified, leave the switch to OFF where indicated by "-," which may be set to OFF for a reason.
7) The settings that are configured with SW4 (SW6-10: ON) will automatically be stored on the indoor units that support the new function*. The stored
settings will automatically be restored when the outdoor unit control board is replaced.
If none of the connected indoor units supports the new function, no configuration information will be saved. If this is the case, manually record the
settings configuration on the control box panel.
*The new function is supported on most units that are manufactured in December of 2012 and later. Depending on the model, this function may be
added on later date. Ask your dealer for further details.
(3) INV board
Functions are switched with the following connector.
1) PUHY-EP200, EP250, EP300,EP350,EP400,EP450YLM-A
COMMON DIP SWITCHES
Connector
SW5-1
CN6 short-
circuit con-
Must be set to ON when using a central controller
nector
SW5-2
Used to reset the connection history of the system.
This procedure must be used at the beginning of commissioning and at any time where there is a change or addition to the
M-Net system.
CN6 short-circuit connector is mated with the mating connector.
Connection memory reset procedure:
Leave the short-circuit connector on the mating connector during normal operation to enable error detection and protect the
equipment from damage.
1. Power down the outdoor. Wait 1 minute
2. Turn dip switch 5-2 to ON. Power up outdoor unit. Wait 5 minutes
3. Power down outdoor unit. Wait 1 minute. Turn dip switch 5-2 to OFF
4. Power up outdoor unit and wait 5 minutes
5. Outdoor unit will now have new connection information
62
OFF
OFF 0°C [32°F]
ON 4°C [39°F]
OFF
OFF 0°C [32°F]
ON -2°C [28°F]
Function
Detects or ignores the following errors
ACCT sensor failure
(5301 Detail No. 115)
ACCT sensor circuit failure
(5301 Detail No.117)
IPM open/ACCT erroneous wiring
(5301 Detail No. 119)
Detection of ACCT erroneous wiring
(5301 Detail No.120)
No.900
ON
9°C [48°F]
14°C [57°F]
No.982
ON
-4°C [25°F]
-6°C [21°F]
Function according to connec-
tor
Enabled Disabled
Error detec- Error detec-
tion enabled tion disable
(No load op-
eration is pos-
sible.)
Setting timing
Anytime after power on