Mitsubishi Electric CITY MULTI PUHY-P200YEM-A Service Handbook page 41

3
PU(H)Y-200·250·315YEM(K,C)-A
Switch Function
SWU 1~2 Unit address setting
3
Refrigerant model
SW1 1~8 For self diagnosis/
operation monitoring
9~10 –
SW2 1 Centralized control switch
2 Deletion of connection
information.
3 Deletion of error history.
4 Refrigerant amount adjustments
5 –
6 Disregard ambient air
sensor errors, liquid
overflow errors.
7 Forced defrosting
8 Defrost prohibited timer
9 –
10 –
SW3 1 SW3-2 Function valid/
invalid
2 Indoor unit test operation
3 Defrosting start tempera-
ture of TH
4 Defrosting end tempera-
ture of TH5.
Opening angle of IC except
when heater thermostat is
ON during defrosting.
5 –
6 Pump down
7 Target Tc (High pressure)
in Heating
8 –
9
Models
10 Models
SW4 1 SW4-2 Function valid/
invalid
2 –
3 –
–
4
–
5
–
6
7 Night mode/Step demand
–
8
9
Models
10 –
Note 1
• SWU1~2=00 when shipped from the factory. Other factory settings are indicated by shaded portions.
• If the address is set from 01 to 50, it automatically becomes 100.
• The refrigerant model is recognized with SW3 and TH2.
Note 2
SW3-9
OFF
SW3-10
OFF 200YEMK-A
250YEM(K,C)-A
ON
Function according to switch operation
When off
Set on 51~100 with the dial switch.
R407C
LED Monitering Displa
–
Centralized control not
connected.
Storing of refrigeration
system connection
information.
–
Ordinary control
–
Errors valid.
Ordinary control
39 min.
–
–
SW3-2 Function invalid
Stop all indoor units.
– 6°C
10°C
For 2minutes.
(no operation)
–
Ordinary control
49˚C
–
Invalid
–
–
–
–
–
Night mode
–
PUHY-(P)YEM-A
–
SWU3
ON
315YEM(K,C)-A
200YEMC-A
When on
R22
y
–
Centralized control
connected.
Deletion of refrigeration
system connection
information.
Deletion
Adjustment operation
–
Disregard errors.
Start forced defrosting.
90 min.
–
–
SW3-2 Function valid
All indoor units test
operation ON.
–3°C
15°C
For 2minutes.
2000
–
Pump down
53˚C
–
See Note2.
Valid
–
–
–
–
–
Step demand
–
PUY-(P)YEM-A
–
TH2
R407C
Different unit model error
R22
- 40 -
Switch set timing
When off When on
Before power is turned on.
Before power is turned on.
During normal operation when power
is on.
Should be set on OFF.
Before power is turned on.
Before power is turned on.
During normal operation when power
is on.
During normal operation when power is on
(only when switching from OFF/ON)
–
During normal operation when power
is on.
During normal 10 minutes or
operation when more after
power is on. compressor
starts.
During normal operation when power
is on. (Except during defrosting)
–
–
During normal operation when power
is on.
When SW3-1 is ON after power is
turned on.
During normal operation when power
is on.
During normal operation when power
is on. (Except during defrosting)
–
During normal operation
(only when switching from OFF/ON)
During normal operation when power
is on.
–
–
Before power is turned on.
During normal operation when power
is on.
–
–
–
–
–
During normal operation when power is on.
–
Before power is turned on.
–
Exist Not exist
Different unit model error
R407C
(7130)
R22
(7130)