Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook page 150

[PURY]
Switch Function
SWU 1-2 Unit address setting
For self-diagnosis/op-
SW1 1-10
eration monitoring
Centralized control
1
switch
Deletion of connec-
2
tion information
Deletion of error his-
3
tory SW
Refrigerant amount
4
adjustment
SW2
5 -
6 -
7 Forced defrost
8 Defrost timer setting
9 -
10 -
Test run mode: en-
1
abled/disabled
Test run mode: ON/
2
OFF
Defrost start tempera-
3
ture
Defrost end tempera-
4
ture
SW3
5 -
6 Pump down operation Normal control
Target condensing
7 temperature on the
heating mode Tcm
8 -
9 Unit model selection
10 -
Note: All are set to OFF at factory shipment. Unless otherwise specified, set the switch to OFF where indicated by "-,"
which may be set to a certain setting for a reason.
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 With connection to
to the centralized the centralized con-
controller troller
Normal control Deletion
Storage of IC/OC Deletion of IC/OC
error history error history
Refrigerant amount
Normal control
adjustment mode
-
-
Forced defrost
Normal control
starts
50 minutes 90 minutes
-
-
SW3-2 disabled SW3-2 enabled
Sends a test-run sig-
Stops all ICs
nal to all IC
-10°C [14°F] -7°C [19°F]
(-8 °C [18°F] for 126 (-5 °C [23°F] for 126
model units and model units and
above) above)
10°C [50°F] 15°C [59°F]
(15°C [59°F] for 168 (20°C [68°F] for 168
model units and model units and
above) above)
-
Pump down opera-
tion
49°C [120°F] 53°C [127°F]
-
Refer to the next page.
-
- 141 -
Switch setting timing
ON OFF
Before power on
Anytime after power on
Before power on
Before power on
Anytime after power on (When
switched from OFF to ON)
Anytime after power on (Will be dis-
abled 2 hours after compressor
start up except during initial start up
mode)
-
-
10 minutes after
compressor
start-up
Anytime after power on (When
switched from OFF to ON)
-
-
Anytime after power on
After power on and when SW3-1 is
on
Anytime after power on
Anytime after power on (except dur-
ing defrost operation)
-
After power on and while compres-
sor is stopped
Anytime after power on
-
Before power on
-
[ VII Control ]
ON
-
-
Anytime after
power on (When
switched from
OFF to ON)
-
-
-
-
-