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As described above, during wiring, port A in the unit terminal XT6 corresponds to port A in the user interface. Port B corresponds
to port B. Port X corresponds to port X. Port Y corresponds to port Y, and port E corresponds to port E.
a) Procedure
Remove the rear part of the user interface.
Connect the cable to the appropriate terminals as shown in the picture.
Reattach the rear part of the user interface.
15) For smart grid:
The unit has smart grid function, there are two ports on PCB to connect SG signal and EVU signal as following:
1. when EVU signal closed, the unit operate as below:
DHW mode turn on, the setting temperature will be changed to 70℃
automatically, and the TBH operate as below:T5<69. the TBH is on,
T5 ≥ 70, the TBH is off. The unit operate in cooling/heating mode
as the normal logic.
2. When EVU signal is open, and SG signal is closed, the unit operate
normally.
3. When EVU signal is open, SG signal is open, the DHW mode is off,
and the TBH is invalid, dis-infect function is invalid. The max running
time for cooling/heating is "SG RUNNIN TIME", then unit will be off.
10 START-UP AND CONFIGURATION
The unit should be configured by the installer to match the installation environment (outdoor climate, installed options, etc.) and
user expertise.
It is important that all information in this chapter is read sequentially by the installer and that the system is configured
as applicable.
CAUTION
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