Table of Contents
[ VII Control ]
VII Control
[1] Functions and Factory Settings of the Dipswitches
1. Outdoor unit
(1) Control board
Switch
Function
SWU
1-2
Unit address setting
For self-diagnosis/
SW1 1-10
operation 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
(Note 4)
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 96)
4) Target evaporating temperature will change as shown in the table below each time SW2-9 is turned ON and OFF.
SW2-9
Target evaporating
temperature
5) OS is described in this manual, however OS does not exist because only a single outdoor unit can be connected in an HVRF
system.
HWE1113B
Function according to switch setting
OFF
Set to 00 or 51-100 with the dial switch
Refer to the LED monitor display on the
outdoor unit board.
Without connection
to the centralized
controller
Normal control
Storage of IC/OC
error history
Normal control
-
-
-
-
Normal control
50 minutes
0°C [32°F]
-
-
OFF → ON → OFF → ON → OFF → ON
0
0
-2
[32
]
[28
]
[32
]
ON
Before power on
Anytime after power on
With connection to
the centralized con-
Before power on
troller
Deletion
Before power on
Anytime after power on
Deletion of IC/OC
(When switched from OFF
error history
to ON)
After being energized and
Pump down mode
while the compressor is
stopped
-
-
10 minutes
Forced defrost
after com-
starts
pressor
startup
Anytime after power on
90 minutes
(When switched from OFF
to ON)
-2°C [28°F]
Anytime after power on
/-4°C [25°F]
(When switched from OFF
/-6°C [21°F]
to ON)
-
-4
0
-6
[25
]
[32
]
[21
]
- 89 -
Units that re-
quire switch
Switch setting timing
OFF
ON
OC
-
-
Anytime af-
ter power
on (When
switched
from OFF to
ON)
-
setting
Note.2
OS
C
C
C
C
B
B
A
-
C
C
A
-
-
-
-
-
A
A
B
B
A
-
-
-
GB
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