Frequency-variable flux-changing heat pump water heater
A heat pump water heater and variable frequency technology, which is applied to fluid heaters, lighting and heating equipment, etc., can solve problems such as poor reliability, low heating output power, and high risk, so that there is no hidden danger of electric leakage and the heating capacity is guaranteed Effect
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[0035] Such as figure 1 As shown, a heat pump water heater with variable frequency and variable flow is composed of a unit part 100, a water circulation part 200, water pipes and communication lines connected thereto; the unit part includes: a variable frequency compressor 1, an exhaust temperature sensor 2, and an exhaust pressure sensor 3. Four-way reversing valve 4. Casing condenser 5. Outlet water temperature sensor 6. Coil temperature sensor 7. Unloading valve 8. Electronic expansion valve 9. Evaporator 10. Ambient temperature sensor 11. Fan 12. Control Device 13, return air pressure sensor 14 and return air temperature sensor 15; the water circulation part includes: water pump 16, exhaust valve 17, ball valves 181, 182, 183 and 184, water tank 19, water temperature sensor 20 and filter 21;
[0036] The signal output end of the evaporator 10 is connected to the signal input end of the return air pressure sensor 14 through a communication line, and the air pressure probe o...
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