Mitsubishi PUHY-EP250 - Dipswitch Functions and Factory Settings; Outdoor Unit Switch Functions and Factory Settings

[5-1 Dipswitch Functions and Factory Settings ]
- 77 -
HWE12050 GB
5 Control
5 Control
5-1 Dipswitch Functions and Factory Settings
5-1-1 Outdoor Unit Switch Functions and Factory Settings
(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 OC needs to be set for the setting to be effective.
B: The switches on both the OC and OS need to be set to the same seeing for the setting to be effective.
C: The switches on both the OC and OS need to be set.
3) When set to the performance-priority mode, the low-noise mode will be terminated, and the units will operate in the normal
mode.
Cooling: Ambient temperature or the high pressure is high.
Heating: When the outside air temperature is low or when the low pressure is low. Refer to the following page(s). [2-4-7 Var-
ious Control Methods Using the Signal Input/Output Connector on Outdoor Unit](page 23)
4) Operation noise is reduced by controlling the compressor frequencies and the rotation speed of the outdoor unit fans.
CN3D needs to be set. Refer to the following page(s). [2-4-7 Various Control Methods Using the Signal Input/Output Connec-
tor on Outdoor Unit](page 23)
Switch Function
Function according to switch setting
Switch setting timing
Units that require
switch setting
(Note 2)
OFF ON
SWU 1-2
Unit address set-
ting
Set to 00 or 51-100 with the dial switch Before power on
C
SW5
1
Centralized control
switch
Without connec-
tion to the central-
ized controller
With connection to
the centralized con-
troller
Before power on
B
2
Deletion of connec-
tion information
Normal control Deletion Before power on
A
3-
Preset before shipment
-
4- -
5- -
6- -
7- -
8- -
SW6
2
COP priority setting
(at low outside tem-
perature)
Normal control
COP priority mode
(at low outside tem-
perature)
Before power on
A
4
Model setting (out-
door unit/high static
pressure setting)
Normal static pres-
sure
High static pres-
sure
Before power on
C
5
Model setting (out-
door unit/high static
pressure setting)
High (60 Pa) High (30 Pa) Before power on
C
7
Performance-prior-
ity/low-noise mode
setting
Performance-pri-
ority mode (Note 3)
Quiet-priority mode
Anytime after power
on
A
8
Low-noise mode/
step demand
switching
Low-noise mode
(Note 4)
Step demand mode Before power on
C
10
Self-diagnosis/
function setting No.
display setting
Self-diagnosis
monitor display
Function setting
No. display
Anytime after power
on
C