Mitsubishi Electric PUHY-(E)P300, Service Handbook

Page: 90 / 302

[
VII
Control ]
- 81 -
HWE07010 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: Switch setting is required on any one of OC, OS1 and OS2.
B: The switch on the all of OC, OS1 and OS2 must be set to the same settings.
C: The switch on OC, OS1 and OS2 must be set individually.
3) Refer to "VII [2] Controlling the Outdoor Unit" for details.(page 87)
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 - - - - - -
10 - - - - - -