Mitsubishi Electric City Multi PURY-EM200YNW-A1, Service Handbook

Page: 133 / 503

[5-1 Dipswitch Functions and Factory Settings ]
2
- chapter 5 BS_05_M
5
Cont
rol
1) Unless otherwise specified, leave the switch to OFF where indicated by "-" or where the cells are blank, which may be set to
OFF for a reason.
2) 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]
3) 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]
4) Selectable with the function switches SW6-4 and SW6-5.
5) Keep SW7-1, and -2 set to OFF during normal operation. Leaving these switches to ON will disable the error-detection function
and can lead to equipment damage.
6) Shaded areas ( ) indicate factory settings.
SW7
1
Enables or disables the de-
tection of the following
types of inverter compres-
sor errors
ACCT, DCCT sensor er-
ror(5301 Detail code 115,
116)
ACCT, DCCT sensor circuit
error(5301 Detail code 117,
118)
IPM open-phase/CNCT2
connection error(5301 De-
tail code 119)
Wiring connection er-
ror(5301 Detail code 120)
Error detection en-
abled
Error detection dis-
abled (no-load oper-
ation allowed)
Any time after power on
2
Enables or disables no-
load operation of the fan in-
verter
The unit continues no-load
operation for 30 seconds
and comes to an error stop.
See the relevant pages for
details: [8-10-9 Checking
the Fan Board for Damage
at No Load]
No-load operation
disabled
No-load operation
enabled
Any time after power on
3 - - - -
4 - - - -
5 - - - -
6 - - - -
7 - - - -
8 - - - -
9
Switches between the nor-
mal startup mode and the
USB writer rewrite mode
Normal startup
mode
USB writer rewrite
mode
Before power on
10 - - - -
SW6-5
ON OFF
SW6-4
ON 80 Pa 60 Pa
OFF 30 Pa 0 Pa
Switch Function
Function according to switch setting
Switch setting timing
OFF ON
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