INVENTOR P8MVI32-09WiFi, Service Manual

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37
10.4 Operation Modes and Functions
10.4.1 Fan mode
(
1) Outdoor fan and compressor stop.
(2) Temperature setting function is disabled,
and no setting temperature is displayed.
(3) Indoor fan can be set to
high/med/low/auto.
(4) The louver operates same as in cooling
mode.
(5) Auto fan:
a
b
c
d
T1
e
10.4.2 Cooling Mode
10.4.2.1 Compressor running rules
When T1- Ts <ΔT -2
℃
, the compressor
will stop,
when T1
—
Ts >ΔT
，
the compressor will
be activated.
ΔT is the programmed parameter of
temperature compensation.
When the AC run in mute mode, the
compressor will run with low frequency.
When the current is more than setting
value, the current protection function will
be activated, and the compressor will
stop.
10.4.2.2 Outdoor fan running rules
The outdoor unit will be run at different
fan speed according to T4.
For different outdoor units, the fan
speeds are different.
For P8MVI32-09WiFi, P8MVI32-12WiFi
models,
The fan speed is controlled by T4 and
compressor frequency.
T4&frequency
&f
B
C
D
A+
A
For P8MVI32-18WiFi, P8MVI32-24WiFi
models,
T4
A+
A
B
C
D
E
10.4.2.3Indoor fan running rules
In cooling mode, indoor fan runs all the
time and the speed can be selected as
high, medium, low ,auto and mute.
When the setting temperature is
reached, if the compressor stop running,
indoor fan motor will run in Minimum
speed or setting speed.
The indoor fan is controlled as below:
Td=Ts+
Δ t
Setting fan
speed
Actual fan speed
H+(H+=H+G)
A H（=H）
B
C
M+(M+=M+Z)
D M(M=M)
E
F
L+(L+=L+D)
G L(L=L)
H
I
T1-Td
℃
(°F)
L
L-(L-=L-D)
H
H-（H-=H-G)
M
M-(M-=M-Z)