DM12-01.01.05en
MIV V4+ Mini DC Inverter R410A (220V, 8 kW)
Outdoor units
29
③
Mode-confliction malfunction
In the below table, “Yes” indicates existing mode conflict, “No” indicates no mode conflict.
Cooling
Heating
Air-supply
OFF
Cooling
No Yes
No
No
Heating
Yes No
Yes
No
Air-supply
No Yes
No
No
OFF
No No
No
No
When indoor unit receiving heating operation instruction, it will transmit the operation mode signal to outdoor
unit to conduct prior heating control, including:
In process of cooling and air-supply mode operation:
After receiving the heating operation instruction,
outdoor unit stops cooling and supplying air, and transfers to heating mode three minutes later after the
shutdown of compressor; indoor unit required to conduct cooling and air-supply mode operation is on standby
mode and displays mode conflict fault.
In process of heating mode operation:
Ignore cooling and air-supply mode operation instruction, outdoor
unit keeps on operating according to heating mode; Indoor unit with cooling and air-supply mode operation
displays mode conflict fault. If heating mode operation stops (except that indoor unit reaches setting
temperature because of heating), cooling and air-supply mode restarts up and conducts operation three
minutes later.
④
Water-level switch malfunction
OK
OK
Water-level switch malfunction
Exist
OK
Water-level switch connecting wire
between switch and main board gets
loose
Reconnect and ensure that the
connection is reliable.
There is something wrong with the
water-level switch
Exist
Replace switch
Chip fault, or chip foot sheds off, or chip is inverted
(correct mode is semicircular bent alignment)
Error
Reinstall chip, or install other chip with
same model on the faulty unit, to check
whether there is something wrong with chip.
Mainboard error:
For example, getting
wet
Replace
mainboard
OK
Содержание MIV V4+ Mini
Страница 1: ...DM12 01 01 05en Service manual MIV V4 Mini DC INVERTER R410A 220V 50Hz 1Ph MVUH80A VA1 ...
Страница 2: ...Contents Part 1 General Information 1 Part 2 Outdoor Units 6 Part 3 Installation 44 ...
Страница 13: ...DM12 01 01 05en MIV V4 Mini DC Inverter R410A 220V 8 kW Outdoor units 11 5 Wiring Diagrams MVUH80A VA1 ...
Страница 14: ...MIV V4 Mini DC Inverter R410A 220V 8 kW DM12 01 01 05en 12 Outdoor units 6 Field Wiring MVUH80A VA1 ...
Страница 23: ...DM12 01 01 05en MIV V4 Mini DC Inverter R410A 220V 8 kW Outdoor units 21 10 Operation Limits ...