Mitsubishi Electric PURY-P72 Service Handbook page 137

[VII Control]
Units that re-
Function according to switch setting
Switch
setting timing
quire switch
Switch Function
setting
Note.2
OFF ON OFF ON OC OS
1
-
-
-
-
-
-
-
2
- - - - -
-
-
3
- - - -
-
-
-
4
-
- -
-
- - -
5
Low-noise mode Capacity priority
Low-noise mode Before being energized
A
-
SW5
selection mode(Note 3)
6
- -
-
- - -
7
-
-
- -
-
-
8
-
-
- - -
-
9
- - -
- - -
10
Backup heating
Disabled Enabled
Anytime after power on A
-
Note
I
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 either the OC or OS needs to be set for the setting to be effective on both units.
B: The switches on both the OC and OS need to be set to the same setting for the setting to be effective.
C: The setting is effective for the unit on which the setting is made.
3) When set to the capacity priority mode and if the following conditions are met, the quiet mode will terminate, and the unit will
go back into the normal operation mode.
Cooling-only/Cooling-main: Outside temperature is high or high pressure is high.
Heating-only/Heating-main: Outside temperature is low or low pressure is low. (page 22)
(2) INV board
1) PURY-P72, P96. P120YHMU-A, PURY-P72THMU-A
Functions are switched with the following connector.
Function according to connec-
Setting timing
Connector Function
tor
Enabled Disabled Enabled
I
Disabled
CN6 short- Enabling/disabling the following error Error detec- Error detec- Anytime after power on
circuit con- detection functions; tion enabled tion disable
nector
ACCT sensor failure
(No load op-
(5301 Detail No. 115) eration is pos-
ACCT sensor circuit failure sible.)
(5301 Detail No.117)
IPM open/ACCT erroneous wiring
(5301 Detail No. 119)
Detection of ACCT erroneous wiring
(5301 Detail No.120)
Note
I
-CN6 short-circuit connector is mated with the mating connector.
-Leave the short-circuit connector on the mating connector during normal operation to enable error detection and protect the
equipment from damage.
HWE0803A - 127-
GB