MCAC-HTSM-201506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual
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P7: Host unit is not matched with wired controller, host unit will display P7, and wired controller
will display E2. (Power supply of wired controller is 10VAC, if the power supply is not stable,
the code of protection or error will also be displayed.)
P8: Water outlet Hi-temperature protection. (≥68ºC, and keep 2 minutes)
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