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13.4.2.
FACTORY PARAMETER LIST
Warning: these parameters must be set by professionals
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