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available external static pressure VS flowrate
(1-phase 10-16kW + 3-phase 12~16kW)
90
80
70
60
50
40
30
20
10
0
0.3
0.8
1.3
Flowrate(m³/h)
Pump LED diagnosis and solutions
The pump has an LED operating status display. This makes it easy for
the technician to search for the cause of a fault in the heating system.
1. If the LED display lights up continuously green, it means the pump
is running normally.
2. If the LED display is flashing green, it means the pump is running
the venting function. The pump runs during the 10 minute venting
function. After its cycle, the installer needs to adjust the targeted
performance.
3. If the LED is flashing green/red, it means that the pump has
stopped operating due to an external reason. The pump will restart by
itself after the abnormal situation disappears. The probable reason
causing the problem is pump undervoltage or overvoltage (U<160V or
U>280V), and you should check the voltage supply. Another reason is
module overheating, and you should check the water and ambient
temperatures.
4. If the LED is flashing red, it means the pump has stopped
operating, and a serious fault has happened (e.g. pump blocked). The
pump cannot restart itself due to a permanent failure and the pump
should be changed.
5. If the LED does not light up, it means no power supply to the pump,
possibly the pump is not connected to power supply. Check the cable
connection. If the pump is still running, it means the LED is damaged.
Or the electronics are damaged and the pump should be changed.
Failure diagnosis at the moment of first installation
■ If nothing is displayed on the user interface, it is necessary to
check for any of the following abnormalities before diagnosing
possible error codes.
■ Disconnection or wiring error (between power supply and unit
and between unit and user interface).
■ The fuse on the PCB may have blown.
■ If the user interface shows "E8"or"E0" as an error code, there is
a possibility that there is air in the system, or the water level in the
system is less than the required minimum.
■ If the error code E2 is displayed on the user interface, check the
wiring between the user interface and unit.
More error code and failure causes can be found in 13.4 Error codes.
10.7 Field settings
The unit shall be configured by the installer to match the installation
environment (outdoor climate, installed options, etc.) and user demand.
A number of field settings are available. These settings are accessible
and programmable through "FOR SERVICEMAN" in user interface.
Procedure
To change one or more field settings, proceed as follows.
Temperature values displayed on the digital controller (user
interface) are in °C
1.8
2.3
2.8
3.3
Ⅲ
Ⅱ
Ⅰ
Keys
MENU
• Go to the menu structure (on the home page)
• Navigate the cursor on the display
◄► ▼ ▲
• Navigate in the menu structure
• Adjust settings
• Turn on/off the space heating/cooling operation
ON/OFF
mode or DHW mode
• Turn on/or off functions in the menu structure
BACK
• Come back to the up level
• Long press for unlock /lock the controller
UNLOCK
• Unlock /lock some functions such as "DHW
temperature adjusting "
• Go to the next step when programming a schedule
OK
in the menu structure; and confirm a selection to
enter in the submenu of the menu structure.
About FOR SERVICEMAN
"FOR SERVICEMAN" is designed for the installer to set the
parameter.
1. Setting the composition of equipment.
2. Setting the parameter.
How to go to FOR SERVICEMAN
Go to MENU> FOR SERVICEMAN. Press OK
FOR SERVICEMAN
Please input the password:
ENTER
OK
The password is 666. Use ◄ ► to navigate and use ▼ ▲ to adjust
the numerical value. Press OK. The following page is displayed:
FOR SERVICEMAN
1. DHW MODE SETTING
2. COOL MODE SETTING
3. HEAT MODE SETTING
4. AUTO MODE SETTING
5. TEMP.TYPE SETTING
6. ROOM THERMOSTAT
7. OTHER HEATING SOURCE
ENTER
SCROLL
OK
Use ▼ ▲ to scroll and use "ok" to enter submenu for setting the
parameters.
39
Function
0
0 0
ADJUST
SCROLL
FOR SERVICEMAN
8. HOLIDAY AWAY MODE SETTING
9. SERVICE CALL SETTING
10. INITALIZE MANUALLY
11. TEST RUN
12. SPECIAL FUNCTION
13. AUTO RESTART
ENTER
SCROLL
OK
V.2
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