Functions and control
Domestic air conditioner
6.2 Main functions and control specification outdoor unit
6.2.1 The operation frequency of outdoor unit and its control
6.2.1.1 The operation frequency control of compressor
6.2.1.2 The starting of compressor
6.2.1.3 The speeds of increasing or decreasing the frequency of the compressor
6.2.1.4 The calculation of the compressor’s frequency
1
7
The operation frequency scope of compressor
Mode
Minimun operation frequency
Maximun operation frequency
z
H
0
1
1
z
H
0
2
g
n
i
t
a
e
H
z
H
0
9
z
H
0
2
n
o
i
t
a
r
e
g
i
r
f
e
R
When the compressor is started for the first time, it must be kept under the conditions of 58Hz,88Hz for
one minute (the overheating protection of the outdoor unit air-blowing temperature, immediately decrease the
frequency when the compressor is overflowing and releasing the pressure)
then it can be operated towards
the target frequency. When the machine runs normally, there’s no such process. After starting the
compressor for operation, the compressor should run according to the calculated frequency, and every
determined frequency for protection should be prior to the calculated frequency.
The speed of increasing or decreasing the frequency rapidly 1
-----------1HZ/second
The speed of increasing or decreasing the frequency slowly 2
-----------1HZ/10seconds
1
The minimum/maximum frequency limitation
A
While refrigerating:
is the maximum operation frequency of the compressor;
IN
is the minimum operation frequency of the compressor.
B
While heating:
is the maximum operation frequency of the compressor;
IN
is the minimum operation frequency of the compressor.
1
The frequency limitation which is affected by the environment temperature.
Heating mode:
Serial No.
Temperature scope
Frequency limitation
1
Wh_c<-12
Max_hz8
110 HZ
Z
H
0
1
1
7
z
h
_
x
a
M
8
-
<
c
_
h
W
2
Z
H
0
1
1
4
z
h
_
x
a
M
2
-
<
c
_
h
W
3
Z
H
4
9
5
z
h
_
x
a
M
5
<
c
_
h
W
4
Z
H
1
8
1
z
h
_
x
a
M
0
1
<
c
_
h
W
5
Z
H
5
6
2
z
h
_
x
a
M
7
1
<
c
_
h
W
6
Z
H
0
5
2
z
h
_
x
a
M
0
2
<
c
_
h
W
7
8
Wh_c 20
Max_hz6
45 HZ
Remarks: the above are the maximum frequency limitations of the complete appliance which are affected by
the environment, and they have nothing to do with the ability of the indoor unit.
6.1.20 Time cutting function:
Connect the test program terminal on the mainboard after connecting the system to the power circuit. The
CPU of the main control will be 60 times faster.
Summary of Contents for N Series
Page 11: ...Piping diagrams Domestic air conditioner Pinping diagrams 8...
Page 12: ...Operation range Domestic air conditioner 18 15 27 24 9 5 Operation range...
Page 27: ...Domestic air conditioner 24 Electrical Parts test...
Page 28: ...Domestic air conditioner 25...
Page 29: ...Domestic air conditioner 26...
Page 30: ...Domestic air conditioner 27 Electrical Parts test...
Page 31: ...Domestic air conditioner Seivice diagnosis...
