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7. PARAMETER CHECKING AND ADJUSTMENT
7.1 Parameter list
Some parameters can be checked and adjusted by the controller. B elow is the
parameter list.
No.
1
Compressor running frequency
2
3
4
5
6
7
8
4-way Valve outlet Temp.
9
Water Circulaton Pump
10
11
12
13
14
15
16
Running Current of Compressor
17
18
19
20
21
7.2 Malfunctioning of the unit and maintenance
When an error occurs or the protection mode is set automatically, the circuit
board and the wired controller will both display the error message.
Meaning
Error
1. No water flow
2. Flow switch
Water
P01
Flow failure
3. Water system
P02
High
pressure
Name
EEV Open degree
Ambient Temperature
Outlet Water Temp.
Exhaust gas Temp.
Return gas Temp.
Coil Temp.
4-way Valve Status
Standby
Standby
Standby
Standby
Standby
Voltage
Standby
Standby
Standby
Fan speed
Analysis
1. Check if water in
valve is closed or no
water in
2. Check if flow switch
failure
is blocked or damaged
3. Check
block
filter blocked
1.Water flow
is too small
Current Value/5
Diagnosis
if "Y" Shape
1. Check if water
flow is not enough
16
Instruction
Current hz
Current ºC
Current ºC
Current ºC
Current ºC
Current ºC
Current ºC
0-off；1-on
0-off；1-on
/
/
/
/
/
Current*10
Current/10
/
/
/
Current/10
Solution
1. Open the valve
2. Change a new flow
switch
3. Clean or change a
new filter
1.Reinject water or
change to a new pump
V.1
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