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I rigged up a Fox External Thermostat, its likely the easiest route if you're not confident in your electronics skill.
Hi Bro and Sis,
Anyone here wired an external sensor to their Hailea H150 chiller ? Please help. Thanks.
I rigged up a Fox External Thermostat, its likely the easiest route if you're not confident in your electronics skill.
why do we need an external thermostat??
isn't the thermo stat of hailea quite good? much better than resun.
ONLY Blue Zebras.
becasue you want to measure the temperature in the tank not in the chiller heat exchange camber. Some chiller require to use high flow rate to make sure temperature measured at chiller roughtly equal to the temperatrure in the tank. This cause a problem if you want to use it for small size tank.
Other chiller design measure the incoming water instead of measure at heat exchange chamber. This way it is more accurate.
Also if the chiller / pump you're running is over or under rated for your setup, it will be much more efficient to use an external thermostat to control your chiller.
As the temperature of the water in tank is a lot more stable, your chiller will not kick in as often, though if will likely run longer each time it kicks in.
This may not reduce your electricity bill by much if at all, but it will give you more stable tank temperature and should extend the life of your compressor.
Yes, I want to add external thermostat because the compressor kick in too often. As mentioned by Bro Shadow, the temperature in the tank is higher than the one measured in chiller heat exchange camber, so to prevent the often kick in of the compressor the solution is to use a external sensor, to make temperature measured by chiller roughly equal to the temperature in the tank.
FYI, the filter I used is Ehiem 2213, is the flow rate too low?
2213 400l FR with 150a is sufficient. You only need the temp probe... get the thermostat if you want fine tuning of your temp setting: temp var, delay..etc
With fox temp probe, your chiller will kick in for a longer duration but the interval till next running would be extended. E.g kick in 15min kick out 30min, but with temp probe will be 30min kick in 1hour plus downtime. It does save electricity for some brands as the initial voltage drawn is very high during start of kick in period.
My next question is, anyone have a step by step instruction on how the external thermostat to be replace ?
I did visit http://aquatic-art.blogspot.com/ , which have the instruction for Resun CL280, does it apply to Hailea ?
Can refer to pics my friend posted here to taking the HC-150A apart, once you have it apart it shouldn't be too difficult to disconnect the internal thermocouple and replace it with an external one.
http://www.aquaticquotient.com/forum...ad.php?t=62967
Have to make sure the external probe has the same or close enough resistance though.
If you're not confident on doing this yourself, you could drop him a PM or give Bioplast a call, I'm sure they can rig this up for you also.
Hi,
Thanks for all the help, finally I got the external sensor in place and working.
Before mod, for my 2 ft tanks, temp set to 25 degree, the chiller ON/OFF cycle is like 2 hrs OFF, 45 min ON.
After mod, I am seeing 2.5hrs OFF, 45 min ON.
Anyone bro or sis here got their chiller mod and can share your ON/OFF cycle.
I think your 2.5hrs is due to cooler weather... your kick in is still the same duration.
Let me share the chillers that i had:
resun cl300
before, kick in 10min kick out 35min
after , kick in 30min kick out 1.5hr plus
teco ra680 ra 200 tr10
NO difference.
Reason for this= China brand chillers have temp probe inside the water reservoir, whilst teco and artica have it at the inflow before the reservior.. However the newer model of haliea have very good performance.
However would like to ask you for your model, does the fan blow inwards or outwards?
Important point to note, full external thermostat replacement as what bro fuzzy has shown will work using the fox thermostat for haliea and resun models.. but not teco as internal capacitators are different. Will fry the thermostat immediately for teco if you power it on
45 min on is a very long time for a HC-150A in a 2 foot.
What temperature are you setting it at?
I was running a HC-150A + 900L/hr eheim on my 2ft Fiveplan, set at 25C
Run time was approximately 10 minutes every 1.5 - 2 hours.
Assuming your chiller thermostat is working fine, I suspect your flow rate is too low, is there enough ventilation space behind your chiller?
Is it located inside a cabinet or something?
you guys forgot to mention what is your ambient temperature..
it greatly affects the OUT duration.
il update my in/out times when i get back to sg where my chiller is....
haha
ONLY Blue Zebras.
Hi,
The Chiller is not cover, and not place near the wall, so the air flow is good.
Chiller temp is set at 25 degree and the flow rate of my eheim 2213 is stated as 440l/hr, is that too low ?
Ambient temp is about 28 degree at the corner of my living room where my tanks is.
I will try monitor the in/out time after I come back from my Holiday.
I've tried running the HC-150A with a Classic 2213, the flow rate is (in my opinion) too low for it to run efficiently. I was using all eheim media, with some biohome replacing some of the mechanical filtration rings.Originally Posted by Taz1
When I upgraded to an Atman canister that had 600 L/hr the efficiency improved a bit, when that died and I upgraded to an Eheim 900 L/hr I saw the best results.
Bro where did you buy your thermostat, how much and how did you fix it. Sorry and thank you in advance
You can get it from Sim Lim Tower B1. Shop is Acez Instrumental. Should be around $25.
Just say its for aquarium chiller. They have sold many for this purpose.
Remember to buy the connector at the 3rd level as well, if you don't already have it.
Sent from my GT-I9505 using Tapatalk
Thank you
Get the sensor from the 3rd floor if you can. There is this really huge and heavily cluttered shop right besides the escalator. I bought my first one from them and second one from the basement because the shop ran out of stock. It's much cheaper in the shop on the 3rd floor.
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