Are you keeping track of your fitness?
To have safe, efficient and sustainable heating systems, you need to have procedures. One important routine is to keep track of the phases in a heat pump. Another routine that is good to have is to measure different temperatures in a heating system.
- Measuring the phases of a heat pump compressor should be done at regular intervals to keep track of the condition of the compressor. There should be no more than 10-12 % between the highest and lowest phases. If it is higher between the phases, it may be an indication that the windings on the compressor have something wrong, which in turn can lead to a compressor failure.
- The optimal Delta-T between primary and secondary return temperature for a heat exchanger on a district heating system is zero degrees. If the Delta-T is higher, the exchanger has a lower efficiency and needs to be cleaned. Keep in mind that there may be a common return sensor for heating and hot water and then you should measure manually to get a correct measurement value!
- To know that a heat pump is getting rid of heat correctly, measure the Delta-T of the hot gas and condenser temperature. If the heat pump cannot get rid of the heat, it has to work too hard and this shortens the life of the compressor in the heat pump. The Delta-T of a heat pump should not exceed 20 degrees.