MIV V4+ Mini DC Inverter R410A (220V, 8 kW)
DM12-01.01.05en
26
Outdoor
units
①
Indoor/outdoor communication malfunction
Exist
OK
Indoor / outdoor communication alfunction
Exist
OK
Short circuit or open circuit of
communication wire P, Q and E
Check communication wire
(generally measuring resistance
between P, Q and E)
Irregular connection of
communication wire
(causing E2 error and
indefinite variation or
reduction in the number
of indoor units)
Repetition of address code to indoor unit
Some indoor units are not power-on
(reduction in the number of indoor units)
Communication wires does not be
separated from Power wires, causing
interference
Communication wire is not in serial
connection (such as star connection or
parallel connection)
There are other electronic
magnetic interference
sources nearby, such as
transformer, strong solar
light and so on
Rule out interference source,
or add shielding and filters
OK
Exceed
Make proper regulation or
strengthen signal
Error
OK
Communication wire
is too long, exceeding
specified value.
Chip fault, or chip foot sheds off, or chip is
inverted (correct mode is semicircular bent
alignment)
Reinstall chip, or install other
chip with same model on the
faulty unit, to check whether
there is something wrong with
chip.
OK
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 ...