Recommendations for external thermostat for chiller

**kaym** · 24th Dec 2007, 10:39

Any recommendations for getting a decent external thermostat for chiller for under $200?

**kaym** · 24th Dec 2007, 12:19

Need to bring in the whole chiller for modification or can just set it up myself as an external accessory?

**ranmasatome** · 24th Dec 2007, 12:36

Bring to bioplast, they install the set for you and additionally top up your gas and service the entire chiller for under your budget. Takes 1 or 2 days. i just did it.

**carlfsk** · 24th Dec 2007, 17:20

Sorry for adding this in, but just for sharing too.

I have a external temperature controller with a temperature probe. Can I connect this to a extention plug. Then plug in my chiller and eheim1250 (as chiller pump). Set it as 26C. So when the temperature rises above 26C, electricity kicks in, thus starting the eheim1250 as well as the chiller, and chilling begins. Is this good enough?

**kaym** · 25th Dec 2007, 00:35

Sounds good, where did you get the temperature controller and probe? And how much? Is the probe meant for aquarium use? What is the kick-in frequency of the chiller?

I've been thinking of getting a similar kind of external thermostat such as yours. Plug and Play.

**carlfsk** · 25th Dec 2007, 11:25

Hi, the brand is Fox temperature conroller from Sim Lim, about $85. It's not plug and play, but got to do some wiring yourself. Now I am thinking to connect it to those household general use extention plug (those white colour long thingy where we plug in our plugs). With the extension plug connected, then I could just plug in my chiller and eheim1250.

So when the tempreture rises above 26C (which I set), electricity will flow, staring my eheim1250 and chiller, and in a while chilling will begin.

I wonder if this is a good choice.

**kaym** · 25th Dec 2007, 12:38

Actually i think this is decent. Only thing is that once the temperature cools down enough, the temperature controller would cut off the chiller completely including its fan.

If you have noticed, on the onboard chiller thermostat, once it deactivates, the compressor fan still spins. I wonder if this is necessary to cool down the compressor.

So, question is... would cutting off power and skipping the fan cooling part be detrimental to the long term health of the chiller?

**carlfsk** · 25th Dec 2007, 13:30

Originally Posted by kaym

Actually i think this is decent. Only thing is that once the temperature cools down enough, the temperature controller would cut off the chiller completely including its fan.

If you have noticed, on the onboard chiller thermostat, once it deactivates, the compressor fan still spins. I wonder if this is necessary to cool down the compressor.

So, question is... would cutting off power and skipping the fan cooling part be detrimental to the long term health of the chiller?

Funny, for mine, once the chiller stops, the fan stop too. Using a daeil.

**kaym** · 25th Dec 2007, 13:41

I tried connecting my chiller to those white extension plug before, it tripped the electricity for the whole house. I think if you use the plug, u can't connect anything else to it.

**fuji0030** · 25th May 2009, 21:37

Actually i ahead this is decent. Only activity is that already the temperature cools down enough, the temperature agent would cut off the alarming actually including its fan.
If you acquire noticed, on the onboard alarming thermostat, already it deactivates, the compressor fan still spins. I account if this is all-important to air-conditioned down the compressor.

_________________
Thermostat

**windcharm** · 26th May 2009, 10:50

This is what I did. Disconnect the temperature sensor from the internal chiller (water tank) house. I bought an external temperature sensor (Fox) at $18 from a shop at sim lim tower and connect it direct to it. Place the temperature sensor directly into the water in my fish tank. Easy and cheap, and what's more.. it is much much more accurate and the intervals of the chiller run in time is longer now. Which means, it helps to save your monthly electrical bill!

**Neutral81** · 14th Feb 2010, 10:51

Hi All,

I planning to DIY an external temperature sensor for my chiller (Resun CL280) as it kick in too often. I have gathered quite a few information about how to fix it onto the chiller but still got a few queries and hope to get some advise from you all.
- Can someone recommend me the model no or part no of the external temperature sensor that is compatitable with Resun CL 280? I understand that many people recommend FOX temperature sensor, but does FOX only have one model or there are many models to choose from?
- For my chiller (setting at 25 Deg C) it kick in when it reaches 27 Deg C. Is there any way that i can change this setting inside the chiller to kick in at 26 Deg C? Will a vary of 2 Deg C too much a fluation?

Thanks

**Fuzzy** · 14th Feb 2010, 21:57

I am using the FOX 1004.

**Neutral81** · 20th Feb 2010, 16:29

Hi, would like to know if you are using FOX 1004 sensor only or are you using FOX 1004 thermostat as a whole set..? if you are using FOX 1004 thermostat as a set, may i know how you connect up with the CL280?
Thanks...

**Shadow** · 20th Feb 2010, 21:18

I bought FOX sensor only, not sure which model number though

**Neutral81** · 23rd Feb 2010, 23:03

I have just bought a set of FOX-2001 thermostat last weekend and planning to replace it with the internal CL280 thermostat using the existing CL280 wiring, but apparently the wiring connection is not compatiable. It seems that the power output is not compatitable. Anyone has experience in replacing thermostat using existing old wiring? Please help.. do not want to waste the $ in buying and not using it...

**Shadow** · 24th Feb 2010, 10:13

normally you just need to connect it to the relay on the FOX-2001. The problem probably the wattage of your chiller must be within the FOX-2001 spec

Based on the website sepc should be ok, 1relay(1c) 250VAC 3A and your chiller is 280W
http://www.tradekorea.com/product-de...ro_Series.html

**Neutral81** · 27th Feb 2010, 22:20

Hi Robert,

Thanks for your guidance. I finally managed to solve the issue.
The thermostat used in CL280 is powered up by 12VAC. The step down transformer convert the 230VAC to 12VAC before powering up the CL280 thermostat.

However the FOX 2001 thermostat that i bought work on 230VAC. Therefore it cannot be powered up in the first place. I had modified the wiring to bypass the step down transformer and i connect the 230VAC direct to FOX 2001 thermostat. After which everything work fine.

Just a note for those who wants to replace the thermostat of CL280 using the existing old wiring inside the chiller, please do take note of the power rating of the thermostat that you want to buy. .

Cheers..

**Fuzzy** · 28th Feb 2010, 01:38

I wired the FOX 1004 to an external power box. Then I just plug the chiller into it (won't work if your chiller internal thermostat is faulty though.)

So the external thermostat unit is between the mains power and the chiller.