Results 1 to 9 of 9
Thread: Calorex 510 Heat pump question
-
29-05-2009, 02:00 PM #1
Calorex 510 Heat pump question
Hi There,
Looking for some advice please.
I have a Calorex 510 heat pump purchased second hand heating an 18ft round above ground pool 52" deep.
I use a 3/4HP (0.75) sand filter/pump.
Im seeing approx 0.5c to 1.0c temp difference between inlet and outlet to the pool whilst the heat pump is running. Is this correct for this size of heat pump or should I be seeing more of an increase than this?
Many thanks.
-
29-05-2009, 03:00 PM #2
Re: Calorex 510 Heat pump question
The temperature difference tells you absolutely nothing about how well the heat pump is working.
-
29-05-2009, 03:29 PM #3
Re: Calorex 510 Heat pump question
To expand on this:
A smaller pump would give you a greater difference, but it would be heating far less water.
A larger pump would give you a smaller difference, but would be heating much more water.
The end result would be about the same. If anything, greater flow with smaller difference might give you a little more heating... but then it would take more energy to run the larger pump.Last edited by Gary; 29-05-2009 at 03:31 PM.
-
29-05-2009, 03:48 PM #4
Re: Calorex 510 Heat pump question
Typically, the installer would adjust the water flow valve to get about 3C temperature difference. This is generally considered to give an optimum trade off between heat output and energy usage... and again, it says nothing about how well the heat pump is operating.
-
29-05-2009, 04:29 PM #5
Re: Calorex 510 Heat pump question
thanks Gary. the pool is up to 27.5c after 3 days of running so must be working ok.
Not cheap to run though I rekon about 8 quid a day.
-
29-05-2009, 04:41 PM #6
Re: Calorex 510 Heat pump question
The best thing you can do for your system is to keep the airflow portion clean (clean fan blades, clean coil, etc.). For efficient operation it needs good airflow.
-
01-06-2009, 02:37 PM #7
Re: Calorex 510 Heat pump question
The 510 has an automatic bypass assembly on it, so the water flow is always correct flowing through the machine
-
19-06-2009, 09:26 PM #8
Re: Calorex 510 Heat pump question
if your looking to heat the pool to 30'C you might find it hard, in our experience with calorex HP on above ground pools its not good.
Where did you buy it second hand?
-
21-06-2009, 10:49 AM #9
Re: Calorex 510 Heat pump question
Hi, ebay.
I can get the pool to 29c depending on the sunshine level, admittedly im trying to only run the pump for 7 hrs a day while im on 0.04p per kwh (economy 7), gets a bit expensive to run at 0.13 per kwh otherwise, If I ran the pump all day long it would probably maintain 30c. Pool has a decent solar cover.
Today being overcast/cooler its struggling to get to 27-28.
Similar Threads
-
compressor for wind powered heat pump
By tomwol in forum Technical SpeculationsReplies: 32Last Post: 12-11-2011, 01:05 PM -
Heat pump knocks
By Jamieheatpump in forum Trouble ShootingReplies: 9Last Post: 29-12-2008, 10:00 PM -
Air source heat pump modification
By rt29781 in forum Heat PumpsReplies: 4Last Post: 23-12-2008, 08:41 AM -
Homemade Heat pump water heater
By busman in forum Technical DiscussionsReplies: 20Last Post: 05-02-2008, 04:04 PM -
swimming pool heat pump
By Andy AC in forum The Trail of TearsReplies: 8Last Post: 26-08-2007, 04:02 PM