Air Source Heat Pump Water Heater Low Temperature Solution

Set some of the heat pump water heater temperature reach or slow temperature rise, engineering unit operation for more than a lot of design time, still can not meet the set temperature, barely used, the measured temperature around 40 or more low, system circulating pump continuously circulation, temperature is not higher.

Cause analysis: the air source heat pump hot water unit of the water temperature generally set at 50 ℃ ~ 60 ℃, occasionally above 60 ℃ under 65 ℃ also fall within the scope allowed, only under the condition of operation may affect the service life of the unit.The rise of temperature must get heat from the outside world.Couldn't get on the water temperature of water in the two aspects, on the one hand, heat loss is greater or equal to the inflow of heat, when the two equal temperature constant.

Heat loss also includes two possibilities, one is the thermal insulation layer temperature difference is too big, not enough quality and nature heat loss is serious, especially the untight seal tank hole bad insulation or hidden insulation parts not ready, peripheral over heat preservation and the heat loss of the discontinuous will increase body heat preservation;Another kind of heat loss for hot water flow of cold water filling into at the same time.The heat loss is often appeared in the design scheme of water tank, some customer not intermittent water requirements for 24 hours, such as traffic large hotels, barber's city, such as customers, cold water rushed into the water tank, hot water use at any time.Once the weather suddenly cold, reduce unit from heat from the air exponentially, while customers to increase the amount of hot water, then keep the heat in the tank is not, is characterized by water temperature rise is difficult, or even cold water phenomenon.

On the other hand may be a host refrigerant and heat capacity difference, lead to valid for a single cycle with less heat exchange. One possibility is the refrigerant selection is not appropriate, air source heat pump hot water unit using refrigerant different from traditional air conditioning refrigerant, with specific physical and chemical stability, specific and is one of the core of the heat pump technology. Part of the heat pump products use the refrigerant on the market do not have this feature, in the case of ambient temperature to reduce appear weak phenomenon it is not surprising.