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Inverter Air-to-Water Heat Pump
Section 5: Wire Controller
Overview of Wire Controller
1. The wire controller records the inlet temp and outlet temp
every ve minutes and displays through a curve graph. The
record can be saved for a maximum period of 2 months.
2. The slave address on RS-485 communication can be altered
through the wire controller.
3. The displayed temp. can be switched between °C and °F.
Heat pump
Color screen
wire controller
485
Port No. Name Terminals No. Function
CN2
Signal port 485A/485B
Communicate with
PC8002
Power input +12V/GND
Power supply of wire
controller, 12V DC
Electrical System Diagram
System Diagram
Function of the Ports
Display Window and Function
If the display screen is not touched in 30s the screen will dim. The screen will go to sleep after 2 minutes of no operation. Touching
the screen will "wake" up the controller again. If the units selected is deg F, the date and time will be displayed as MM/DD/YY, Hr/Min/
Wk. If the units selected is deg C, the display date and time will be displayed as DD/MM/YYY and Hr/Min/Wk.
Power on Display Window
The display will show controller and wire controller versions when power on. If communication fails, the version number won’t be
displayed and will turn into main display window after 15s. If communication succeeds, the display will show controller and wire
controller versions and turn into main display after 4s. You should hear a long ‘beep’ from wire controller after reprogrammed.
HEATING/AC
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