Function Of Dip Sw And Rotary Sw - Mitsubishi Electric CITY MULTI P500YMF-C Service Handbook

[5] Function of Dip SW and Rotary SW

(1) Outdoor unit
PURY-P400·500YMF-C.
1 Variable capacity unit
MAIN board
Switch Function
SWU 1 ~ 2 Unit Address Setting
1 ~ 8 For self diagnosis/
operation monitoring
SW1
9 ~ 10 -
Centralized Control
1
Switch
2 Deletion of connection
information.
3 Deletion of error history.
• Adjustment of Refriger-
4
ant Volume
• Ignore liquid level errors
SW2
-
5
-
6
Forced defrosting
7
8 -
Reset of the time the CS
9
circuit is closed.
10 -
SW3-2 Function Valid/
1
Invalid
2 Indoor Unit Test Operation
Defrosting start tempera-
3
ture .
Defrosting end tempera-
4
SW3 ture.
Target low-pressure
5
change
6 Pump Down Function
Target high-pressure
7
change
-
8
-
9
10 Models
SW4-2 Function valid/
1
Invalid
2 Configuration compensa-
tion value
3 -
4 -
SW4
-
5
6 -
-
7
-
8
9 -
-
10
Note 1: Factory setting is SWU 1 to 2 = 00, SW3 - 10 = set by model. All other switches are set to OFF.
Note 2: If the address is set from 01 to 50, it automatically becomes 100.
Function According to Switch Operation
When Off
Set on 51 ~ 100 with the rotary switch.*2
Refer to LED monitor display on the outdoor board.
-
Centralized control not Centralized control
connected. connected.
Storing of refrigeration Deletion of refrigeration
system connection system connection
information. information.
Store IC•OC error history. Erase IC•OC error history.
Ordinary control • Refrigerant volume
• Ignore liquid level errors
-
-
Ordinary control Start forced defrosting.
-
When the CS circuit is Timer Reset
closed, that time is totaled.
-
SW3-2 Function Invalid SW3-2 Function Valid
Stop all indoor units. All indoor units test run
ON.
– 8 C
7 C
Ordinary control 2deg lower than normal
Ordinary control Pump Down Operation
Ordinary control High pressure / 1.5 ~ 2.5 K
higher than normal
-
-
Model 400
SW4-2 Function invalid SW4-2 Function valid
Changes as shown below by on
0 % 3 % 6 % 9 % 12 %
-
-
-
-
-
-
-
-
–26–
When On
Before power is turned on.
-
Before power is turned on.
Before power is turned on.
During normal operation when
power is on.
During normal
operation when
adjustment operation.
power is on.
-
-
During normal
operation when
power is on.
-
During normal operation when
power is on.
-
During normal operation when
power is on.
When SW3-1 is ON after power is
turned on.
During normal operation when
– 10 C
power is on.
12 C During normal operation when
power is on. (Except during
defrosting)
During normal operation when
power is on.
While the compressor is stopped.
During normal operation when
power is on.
-
-
When switching on the power.
Model 500
When switching on the power.
off change
When SW4-1 is ON
– 6 % – 3 % 0 %
-
-
-
-
-
-
-
-
Switch Set Timing
When Off When On
-
Invalid 2 hours
after compressor
starts.
-
-
10 minutes or
more after
compressor
starts.
-
-
-
-
-
-
-
-
-
-
-
-