Chiller temperature higher than tank temperature

[kira76]

Hi all,

For the past 1 month plus, my Hailea 300A chiller was running perfectally normal with temperature set at 25^oC. The main tank temperature reading from my PinPoint wireless themometer was about 26^oC, so I live with the 1^oC temp difference for the past month and take it that the chiller temp probe was not caliberated properally or not accurate.

Recently, due to wife complain that chiller is ugly, I've custom make a box to cover the chiller with opening at the front and back for air circulation. However, after installing it on monday night, I woke up tuesday morning with the whole tank cover in condensation builtup. Immidiatelly I knew something was wrong with the chiller. Did a check on the temperature of the main tank and realise that it has gone down to 23^oC. Was advice by someone that my pump flow could be too slow. So yesterday bought an eheim compact+ 2000. Installed it last night and set the chiller tempeerature to 27^oC.

Having done all this, my chiller this morning was still displaying a temperature of 27^oC++ dispite my PinPoint Wireless themometer showing a main tank temp of 24.9^oC. I;ve also notice that the chiller was kicking in much more often then before.

So is it normal for the chiller to display a temp that was higher than that of the main tank? Or does this only happens to chillers that was housed in confine space?

My last resort will be to get an external temperature controller to control the chiller.....

[limsc]

Hi all,

For the past 1 month plus, my Hailea 300A chiller was running perfectally normal with temperature set at 25^oC. The main tank temperature reading from my PinPoint wireless themometer was about 26^oC, so I live with the 1^oC temp difference for the past month and take it that the chiller temp probe was not caliberated properally or not accurate.

Recently, due to wife complain that chiller is ugly, I've custom make a box to cover the chiller with opening at the front and back for air circulation. However, after installing it on monday night, I woke up tuesday morning with the whole tank cover in condensation builtup. Immidiatelly I knew something was wrong with the chiller. Did a check on the temperature of the main tank and realise that it has gone down to 23^oC. Was advice by someone that my pump flow could be too slow. So yesterday bought an eheim compact+ 2000. Installed it last night and set the chiller tempeerature to 27^oC.

Having done all this, my chiller this morning was still displaying a temperature of 27^oC++ dispite my PinPoint Wireless themometer showing a main tank temp of 24.9^oC. I;ve also notice that the chiller was kicking in much more often then before.

So is it normal for the chiller to display a temp that was higher than that of the main tank? Or does this only happens to chillers that was housed in confine space?

My last resort will be to get an external temperature controller to control the chiller.....

Hi bro, before you buy the external temperature controller.

Why not remove the box and see if it is back to the usual performance without the box.

Maybe it is just a concidence that the chiller temperature probe/controller fails when you install the box.

That will be the final check, i guess.

Of course, you might need to change back the old pump and old temperature setting for better comparsions.

[kira76]

Hi bro, before you buy the external temperature controller.

Why not remove the box and see if it is back to the usual performance without the box.

Maybe it is just a concidence that the chiller temperature probe/controller fails when you install the box.

That will be the final check, i guess.

Of course, you might need to change back the old pump and old temperature setting for better comparsions.

That idea did cross my mind. But I was reluctant to remove the box as it'll mean that I need to disconnect the chiller from the hose again.

[Gouldian]

You can re-calibrate your chiller temperature controller to match the pin point if you find the pin point is showing the right temperature.

[kira76]

You can re-calibrate your chiller temperature controller to match the pin point if you find the pin point is showing the right temperature.

Just did that yesterday night. Wonder why Hailea Chiller manuals never teach you how to calibrate their chiller temperature. Seems better now but the chiller temp can only be caliberate to +/- 1.5^oC

The kicking in and out have retured to normal. However, I found out that for the chiller to kick in like 3 to 4 time within an hour isn't the norm. Seems like getting an external temp probe is the only solution to this.

[Gouldian]

Just did that yesterday night. Wonder why Hailea Chiller manuals never teach you how to calibrate their chiller temperature. Seems better now but the chiller temp can only be caliberate to +/- 1.5^oC

The kicking in and out have retured to normal. However, I found out that for the chiller to kick in like 3 to 4 time within an hour isn't the norm. Seems like getting an external temp probe is the only solution to this.

Not sure about Hailea but certain chiller will position the temperature probe near the outlet; this will cuz chiller to kick in and out more often.

You can try swopping the inlet into outlet and vis-versa and it should eliminate the frequently kick in and out.

Personally, I would consider external temp controller as a last resorts.

Let me know if you need assistance.

[kira76]

Not sure about Hailea but certain chiller will position the temperature probe near the outlet; this will cuz chiller to kick in and out more often.

You can try swopping the inlet into outlet and vis-versa and it should eliminate the frequently kick in and out.

Personally, I would consider external temp controller as a last resorts.

Let me know if you need assistance.

I've did a search yesterday and found out that Hailea chiller temp probes are in the main water tank. Initially when I set up the chiller, it was kicking in/out a few times within an hour. I initially though that it was normal.

Subsequently, when the problem of temp difference comes in, I asked around and was told that it could be due to low flowrate, thus, I've changes to a 2000l/hr pump. Kicking in/out seems to be reduced but it's still not within the norm of say, chiller kick in for 30mins, kick out for 10 mins. Can't be that the chiller is so efficient right.

byw, I'm running the Hailea 300A on a 3x2x2ft tank. Is it consider overpower?