Mitsubishi P240 User Manual

Page of 334
VII  Control ] 
- 95 -
HWE09120
GB
VII Control
[1] Functions and Factory Settings of the Dipswitches
1. Outdoor 
unit
(1) Control board
1)   Unless otherwise specified, leave the switch to OFF where indicated by "-," which may be set to OFF for a reason.
2)   A: Only the switch on either the OC or OS needs to be set for the setting to be effective on both units.
B: The switches on both the OC and OS need to be set to the same setting for the setting to be effective.
C: The setting is effective for the unit on which the setting is made.
3)   Refer to "VII [2] Controlling the Outdoor Unit" for details.(page 102)
4)   The table below shows the combination of SW2-9 and SW3-5 settings and the target evaporating temperature setting that 
corresponds to each combination.
Switch
Function
Function according to switch setting
Switch setting timing
Units that re-
quire switch 
setting 
Note.2
OFF
ON
OFF
ON
OC
OS
SWU
1-2
Unit address setting
Set to 00 or 51-100 with the dial switch
Before power on
C
C
SW1
1-10
For self-diagnosis/
operation monitoring
Refer to the LED monitor display on the 
outdoor unit board.
Anytime after power on
C
C
SW2
1
Centralized control 
switch
Without connection 
to the centralized 
controller
With connection to 
the centralized con-
troller
Before power on
B
B
2
Deletion of connec-
tion information
Normal control
Deletion
Before power on
A
-
3
Deletion of error his-
tory SW
(OC) Storage of IC/
OC error history
(OC) Deletion of IC/
OC error history
Anytime after power on 
(When switched from OFF 
to ON)
C
C
(OS) Storage of OS 
error history
(OS) Deletion of 
OS error history
4
Pump down mode
Normal control
Pump down mode
After being energized and 
while the compressor is 
stopped
A
-
5
-
-
-
-
-
-
6
-
-
-
-
-
-
7
Forced defrost
Note 3
Normal control
Forced defrost 
starts
10 minutes 
after com-
pressor 
startup
Anytime af-
ter power 
on (When 
switched 
from OFF to 
ON)
A
A
8
Defrost timer setting
Note 3
50 minutes
90 minutes
Anytime after power on 
(When switched from OFF 
to ON)
B
B
9
Target evaporating 
temperature setting
Depends on the setting combination with 
the SW3-5 setting (Note 4)
Anytime after power on
A
-
10
-
-
-
-
-
-
Switch
SW2-9
OFF
ON
SW3-5
OFF
0°C [32°F] 
-4°C [25°F]
ON
-2°C [28°F]
-15°C [5°F]