9.5.2 Factory parameter list
Heat Pump For Heating And Cooling Series
25
F5 Mode selection of water circulation pump
:
F5=0
(
normal
)
：
When the unit power on
，
circulation pump
will run
all the time
；
F5=1
(
special
)：
circulation pump will run fallow
the
compressor
；
Parameter
code
Parameters description
Setting range
Default value
Note
H2
Limited working ambient temp of
the heat pump
-30
℃～
0
℃
-20
℃
When ambient temp< set value,
machine stops automatically,
when ambient recover > set
value, machine restarts.
H3
Defrosting interval
20min
～
90min
45min
Minimum interval time from last
defrosting
H4
Maximum coil temperature to
access defrosting
-15
℃～
-1
℃
-3
℃
Defrosting can be access only
when coil temp is <set value
H5
Maximum
duration
time
of
defrosting
5min
～
20min
8min
Defrosting would quit
automatically when time’s up
H6
Coil
temperature
to
quit
defrosting
1
℃～
40
℃
15
℃
Quit defrosting when coil
temp>=set value
H7
Minimum temperature difference
between ambient temp and coil
temp to allow defrosting
0
℃～
15
℃
8
℃
H8
Maximum ambient temperature
to allow defrosting
0
～
20
℃
15
℃
No defrosting if ambient temp >
=set value
P1
Regulating interval of EEV
20s
～
90s
45s
P2
Target overheat of main EEV
control
-5
℃～
10
℃
0
℃
P3
When discharge temperature is
higher than this value
，
EEV
open steps will go up to prevent
discharge temperature not to
high
60
℃～
115
℃
88
℃
P4
Open steps of EEV during
defrosting
2
～
45
45
Open step= display value *10
P5
Minimum open steps of EEV
5
～
20
12
Open step= display value *10
P6
Control method of main EEV
0/1
1
0
：
Manual /1 Automatic
P7
Initial open steps of EEV by
manual control
2
～
50
40
F1
Maximum setting temperature
20
℃～
99
℃
55
℃
F2
Circulation pump ON or OFF when
auxiliary electrical heater starts
0/1
0
0=OFF/1=ON
F3
Compensation value between
water tank temperature and
display temperature
-5
℃～
15
℃
2
℃
F4
Water flow switch installation
choice (for central control)
0
～
1
0
0=individual / 1=common
F5
Circulation pump mode
0/1
1
0=normal / 1=special
(Warning: these parameters
must
be
set
by
professionals
)
