Hi, was hoping someone could help with an outdoor pool heat pump that is not reaching or maintaining temperature.
For the last 3 weeks the pool has had no cover. At first I thought this was the problem as ambient temperature is between 16-22C day and 8-12 night. But the customer says that pool has never maintained temp even when covered in warmer months.
They have had two of these 60kw heat pumps on two matching pools. The first one lasted only one month before compressor failure. It was replaced with a 50kw unit that seems to be easily reaching temp (with a cover).
Pool is 16m x 8m and holds 160,000lts. Set temp is 27C but is only reaching 21C to 25C depending on ambient temp, sunlight hours and wind.
Do I just have too much heat loss due to evaporation, or another faulty unit? The owner is convinced that the heat pump is at fault and pool is due to close in one week (before cover is repaired).
Heat pump uses 410A refrigerant,
Air on 16.5C
Air off 10.4C
Discharge press 295psi, temp 51C
Suction press 95psi, temp 10.5C
Liquid line temp 26C
Water in 24.5C
Water out 28C
Any help or ideas appreciated.