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13.3 PARAMETERS CHECK IN THE UNIT
To check the parameters of hydraulic box, open door 2 and you'll
see the PCB like following, the digital display will show the
temperature of outlet water in normal condition ('0' will display if the
unit is off or error code will display if error occurs). Long press the
check button and the digital display will show the operating mode.
Then press the check button in sequence. The digital display will
show the value, the implication of the value illustrated in the
diagram below:
hydraulic box SW4
C
N
6
C
N
1
9
C
N
1
4
C
N
8
F
S
C
N
1
2
C
N
3
6
C
N
4
H
Y
D
R
O
-
B
O
C
N
5
C
N
3
C
N
2
2
C
Number
Temperature of outlet water when unit is on, when
0
the unit is off, '0' will display
Operation mode(0——OFF，2——COOL，
1
3——HEAT，5——Water heating)
2
Capacity requirement before correction
3
Capacity requirement after correction
Outlet water temperature of backup heater
4
Outlet water temperature of additional heating source
5
Target outlet water temperature calculated from
6
climate-related curves
Room temperature
7
Temperature of domestic hot water
8
Temperature of refrigerant at outlet /inlet of plate heat
9
exchanger when in heat mode/cool mode
Temperature of refrigerant at inlet /outlet of plate heat
10
exchanger when in heat mode/cool mode
Temperature of water at outlet of plate heat exchanger
11
Temperature of water at inlet of plate heat exchanger
12
Ambient temperature
13
Current of backup heater 1
14
Current of backup heater 2
15
Error/protection code for the last time,"—" will display if
16
no error/protection occur
Error/protection code for the second last time, "—" will
17
display if no error/protection occur
Error/protection code for the third last time, "—" will
18
display if no error/protection occur
Version of software (hydraulic module)
19
C
N
1
5
C
N
1
3
C
C
N
3
4
S
1
S
2
S
W
4
Q
U
E
R
Y
check button
X
C
O
N
T
R
O
L
B
O
A
R
D
CN21
N
2
CN1
Implication
To check the parameters on the refrigerant side, open door 1 and
you'll see the PCB like the following (different for 1-phase and
3-phase unit): the digital display will show the present compressor
frequency ('0' will display if the unit is off or error code will display if
error occurs). Long press the check button and the digital display will
show the operating mode, and then press the check button in
sequence. The digital display will show the value, the implication of
the value is shown in the diagram below:
SW2
C
2 N
5 0
N
e t o
N
4
0
M
N I A
O C
T N
O R
r h T
d a e
g n i
r i d
t c e
n o i
2 C I
1 0
C
2 N
1 0
C
N
1 4
check button
C
N
2
5
N C
9 1
N C
7 1
C
N
8 6
S
1 W
C
N
2
7
C
N
7 6
C
N
6 6
C
N
5 6
C
N
3
7
C
N
4 6
C
N
3 6
C
N
1 6
C (
N
4
) 1
C
N
2
4
C
N
1 4
C (
N
6
) 1
SW2
C
N
2
8
C
N
2
0
L1
Number
0
Frequency of compressor at present
Operation mode (0——Standby，2——COOL，3——HEAT，
1
5——refrigerant recovery)
2
Fan speed
3
Frequency from hydraulic module
4
Frequency after restriction by the refrigerant system
5
Temperature of tube at outlet/inlet of condenser when in cool/heat mode
6
Ambient temperature
7
Discharge temperature
Suction temperature (when the temperature lower than -9℃，
8
stand for negative sign)
The opening of EEV (the value display multiply 8 will be the actual
9
opening)
10
Actual current
11
Actual voltage
Pressure of refrigerant (evaporate/condense pressure when in cool
12
/heat mode )
13
Version of software (refrigerant system, PCB B)
Error/protection code for the last time, "nn"will display if no
14
error/protection occurs
15
——
51
SW2
C
6 N
N C
9 1
N C
N C
8 1
O F
B L
A O
D R
C
O
C
E H
K C
C
N
6 3
S 2
W
S 1
W
O N
C
4 N
C
N
4 1
1 2 3
C
8 N
S 3
W
C
2 N
0 5
check button
C
9 N
N C
3 1
S
2 W
A M
N I
O C
T N
O N
O N
C
6 N
1 2 3
1 2
N C
6 1
S
W
7
S
W
8
N C
0 1
_ L
O
U
T
C
1 1 N
N C
2 2
C
N
4
N
O _
T U
C
3 N
check button
Implication
C
N
6 2
C
N
1 5
7 1
R
E C
L O
C
N
2 1
D IS 1
O N
C
N
4 2
1 2 3
N C
8 2
S 4
W
C
N
8
O R
B L
A O
D R
C
9 N
C
1 T
C
N
2 2
C
N
0 1
C
N
0 3
_ L
N I
C
1 N
N
N I _
N C
1 1
C
2 N
"."
Will
V.2
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