iPlumb.it
22-04-2012, 09:42 PM
Hi all, posted this one in the wrong category earlier, think its better suited here.
I am a heating engineer that installs heat pumps in domestic homes. A new customer called me the other day regarding his swimming pool heat pump breakdown.
This is the first time I have been called out to a heat pump breakdown, so sorry if I come across as being a novice.
The HP is a Calorex AW510 upon initial inspection everything seems to be working correctly, the pool thermostat cuts on and off, the time delay switch is ok along with the fan and compressor.
The customer has been away for three days so as the property is just up from my road I have left the pump on 24hrs for the three days and have been monitoring the temperatures both on the lines within the HP and the pool.
With the HP thermostat set to maximum I have recorded these temperatures:
Day 1 Day 2 Day 3
HP thermostat: 16c 17c 18c
Line on outlet of compressor: 26c 28c 27.5c
Pool water: 17c 19c 16c
The temperature drop across the condenser/heat exchanger lines are:
Inlet: 27c Outlet: 22c
The unit is charged with R22. Does it sound like the refrigerant my need to be replaced? What is the going rate to recharge a HP?
Thanks in advance for any help/advise
I am a heating engineer that installs heat pumps in domestic homes. A new customer called me the other day regarding his swimming pool heat pump breakdown.
This is the first time I have been called out to a heat pump breakdown, so sorry if I come across as being a novice.
The HP is a Calorex AW510 upon initial inspection everything seems to be working correctly, the pool thermostat cuts on and off, the time delay switch is ok along with the fan and compressor.
The customer has been away for three days so as the property is just up from my road I have left the pump on 24hrs for the three days and have been monitoring the temperatures both on the lines within the HP and the pool.
With the HP thermostat set to maximum I have recorded these temperatures:
Day 1 Day 2 Day 3
HP thermostat: 16c 17c 18c
Line on outlet of compressor: 26c 28c 27.5c
Pool water: 17c 19c 16c
The temperature drop across the condenser/heat exchanger lines are:
Inlet: 27c Outlet: 22c
The unit is charged with R22. Does it sound like the refrigerant my need to be replaced? What is the going rate to recharge a HP?
Thanks in advance for any help/advise