Midea V6 Series User Manual

V6 VRF 50Hz
38
Midea V6 Series Service Manual
5 Normal Operation Control
5.1 Component Control during Normal Operation
Table 3-5.1: Component control during normal cooling operation
Component
Wiring
diagram
label
8-12HP
14-16HP
18-28HP
30-32HP
Control functions and states
Inverter compressor A
COMP(A)
●
●
●
●
Controlled according to load requirement
Inverter compressor B
COMP(B)
●
●
DC fan motor A
FANA
●
●
●
●
Controlled according to discharge pressure
DC fan motor B
FANB
●
●
Electronic expansion valve
A
EXVA
●
●
●
●
Position (steps) from 0 (fully closed) to 480 (fully
open), controlled according to discharge
temperature
Electronic expansion valve
B
EXVB
●
●
●
Electronic expansion valve
C
EXVC
●
●
●
●
Position (steps) from 0 (fully closed) to 480 (fully
open), controlled according to temperature
different between plate heat exchanger inlet and
outlet
Four-way valve
ST1
●
●
●
●
On
Solenoid valve (oil balance)
SV4
●
●
●
●
Open regularly
Solenoid valve (fast
defrosting (in heating) and
unloading (in cooling))
SV5
●
●
●
●
Controlled according to ambient temperature,
discharge pressure, discharge temperature,
compressor running frequency and discharge
superheat
Solenoid valve (EXV
bypass)
SV6
●
●
●
●
Controlled according to discharge pressure and
discharge temperature
Solenoid valve (indoor
units bypass)
SV7
●
●
Controlled according to load requirement
Solenoid valve (inverter
compressor A vapor
injection)
SV8A
●
●
●
●
Controlled according to inverter compressor A
on/off
Solenoid valve (inverter
compressor B vapor
injection)
SV8B
●
●
Controlled according to inverter compressor B
on/off
Solenoid valve (inverter
compressor B pressure
balance)
SV9
●
●
Open before compressor B startup and close after
compressor B running for 15 seconds. Open after
compressor B stop 10 seconds and keep open 60
seconds.

Midea V6 Series Specifications

General

Brand	Midea
Model	V6 Series
Category	Air Conditioner
Language	English