I have a few points about the heat pump that I need to know about your needs <br>1. Do you need frequency conversion ? <br>2. Do you need to prevent snow and freezing ? 3. <br>Is the heat pump configuration available here? <br>Equipped <br>5. How many hours is required to heat the water in the swimming pool to 39° <br>In addition, the control system refers to the system that controls the constant temperature of the swimming pool, or does it need other additional functions, looking forward to your reply
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