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[ VII Control ]
VII Control
[1] Functions and Factory Settings of the Dipswitches
1. Outdoor unit
(1) Control board
Switch
SWU
1-2
Unit address setting
For self-diagnosis/op-
SW1 1-10
eration monitoring
Centralized control
1
switch
Deletion of connec-
2
tion information
Deletion of error his-
3
tory SW
4
Pump down mode
5
SW2
6
Forced defrost
7
(Note 3)
Defrost timer setting
8
(Note 3)
Target evaporating
9
temperature setting
10
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 83)
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
SW3-5
HWE08110
Function according to switch setting
Function
OFF
Set to 00 or 51-100 with the dial switch
Refer to the LED monitor display on the
outdoor unit board.
Without connec-
tion to the central-
ized controller
Normal control
(OC) Storage of IC/
OC error history
(OS) Storage of OS
error history
Normal control
-
-
-
-
Normal control
50 minutes
Depends on the setting combination with
the SW3-5 setting (Note 4)
-
-
OFF
ON
ON
With connection to
the centralized
controller
Deletion
(OC) Deletion of
IC/OC error history Anytime after power on
(OS) Deletion of
OS error history
Pump down mode
-
-
Forced defrost
starts
90 minutes
-
SW2-9
OFF
ON
0°C [32°F]
-4°C [25°F]
-2°C [28°F]
-6°C [21°F]
- 77 -
Switch setting timing
OFF
ON
Before power on
Anytime after power on
Before power on
Before power on
(When switched from OFF
to ON)
After being energized and
while the compressor is
stopped
-
-
Anytime af-
10 minutes
ter power
after com-
on (When
pressor
switched
startup
from OFF to
ON)
Anytime after power on
(When switched from OFF
to ON)
Anytime after power on
-
Units that re-
quire switch
setting
Note.2
OC
OS
C
C
C
C
B
B
A
-
C
C
A
-
-
-
-
-
A
A
B
B
A
-
-
-
GB
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