3. Composition and operation process of air source heat pump triple supply system
The triple supply system includes the main part (including water pump, expansion tank, etc.), the indoor end part (including wire controller, etc.), the indoor floor heating part (including water separator and temperature controller, etc.), the central hot water part (including water tank, return water control, etc.).
There are generally five modes of triple supply: "refrigeration", "refrigeration and hot water", "hot water", "heating" and "heating and hot water".
Set "cooling and hot water mode" when air conditioning and hot water are needed. In this mode, when the return water temperature of the air conditioning pipe is higher than 12 ℃, start the "refrigeration" operation until the return water temperature is lower than 7 ℃ (settable); when the water temperature in the hot water tank is lower than 50 ℃, start the "hot water" operation until the water temperature reaches 55 ℃ (settable); when the return water temperature is higher than 12 ℃ and the water temperature in the hot water tank is lower than 50 ℃, start the "refrigeration and hot water" operation, Stop until the water temperature of the hot water tank reaches 55 ℃ or the return water temperature of the air conditioner is lower than 7 ℃ (settable). In this mode, start the end of the air conditioner (fan coil) to get a cool and dry indoor environment with the set temperature. Turn on the hot water faucet to get 50-55 ℃ domestic hot water.
Set the cooling mode when air conditioning is required. In this mode, when the return water temperature in the air conditioning pipeline is higher than 12 ℃, start the "refrigeration" operation until the return water temperature is lower than 7 ℃ (it can be set) and stop; the hot water function does not start. In this mode, the air conditioning terminal (fan coil) can be started to maintain the set temperature, cool and dry indoor environment.
Set "hot water mode" when only hot water is needed. In this mode, when the water temperature in the hot water tank is lower than 50 ℃, start the "hot water" operation until the water temperature reaches 55 ℃ (settable) and stop. In this mode, turn on the hot water faucet to get 50-55 ℃ domestic hot water.