15
b
U
Upper tank water temp.
T3
-9 ~ 99°C
Actual testing value. Error
code P2 will be shown in
case of a malfunction
C
U
Evaporator coil temp.
T4
-9 ~ 99°C
Actual testing value. Error
code P3 will be shown in
case of a malfunction
d
U
Return gas temp.
T5
-9 ~ 99°C
Actual testing value. Error
code P4 will be shown in
case of a malfunction
E
U
Ambient temp.
T1
-9 ~ 99°C
Actual testing value. Error
code P5 will be shown in
case of a malfunction
F
U
Temp of solar thermal collector
~0 ~ 140°C
Measured value if failure
show P6
G
Electronic expansion valve step
10 ~ 47 step
N*10 step
U
H
U
Tank water setting temp
“T calc”.
(real value)
TS1
Code
Description
Range
Default
Remark
14
I
Type of water pump
0/1/2
0
0: no water pump
1: (circulation pump)
2: (solar water pump)
17
I
The temperature difference to start the solar
water pump
5-20°C
5°C
Adjustable
18
I
The temperature difference to stop the solar
water pump
1-4°C
2°C
Adjustable
The illustration (Fig. 8) shows an example of solar power system integration. It is obligatory to install all hydraulic elements shown
on Fig. 8
Connection and adjustment of main controller should be done as follow: The Parameter no. 14 must be configured by the installer
(2 = solar water circulation). External circulation pump 15, Fig.8 (I max = 5A) must be connected, as well as the solar thermosensor
18 and flow switch 17 (optional). If the flow switch is not present, short connect contact FS 17 (Fig. 13).
The logic of solar thermal power function is as follow:
•
The pump will start when the below conditions are satisfied at the same time:
o
The unit is on;
o
T6 (temperature of solar collector - thermosensor 18 – Fig. 8) ≥ T2 (lower tank water temperature) + parameter 17;
o
T2 (lower tank water temperature) ≤78°C;
•
The pump will stop when one of the below conditions is satisfied:
o
The unit is off;
o
T6 (temperature of solar collector - thermosensor 18 – Fig. 8) ≥ T2 (lower tank water temperature) + parameter 18
o
T2 (lower tank water temperature) ≥83°C;
While solar thermal function is active, the compressor of heat pump is running too!
Parameters for solar thermal function:
15. Recirculating pump; I max = 5A (solar or recirculation
17. Flow switch
Fig.13 designation:
18. External thermosensor (solar or recirculation)
19. PV switch
Device’s solar heat exchanger is intended for use with circulating clean water and mixture of it and Pro-
pylene Glycol at liquid state. The presence of anticorrosion additives is obligatory. Using different fluids
in different states leads to warranty violation!
8. EXTERNAL CONNECTIVITY
8.1.
Solar collector (thermal power) integration
Summary of Contents for HPWH 3.1 200 U02
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