New Resun CL85 small chiller.

[superchevy]

For 4 feet tank which model can use and the price wise ... thanks .

[d2hpeter]

Argh... Chinese website. Can't read a thing...

aren't you a chinese, as your indicates? shame...

[cairocks]

Anyone have any idea if teh CL-150 is going to come in to Singapore? My tank is a 80litres tank. CL-85 is just a tad to weak for my tank and think the CL-280 is too strong. Waiting for the CL-150 to fill in the gap. Now using a computer fan to cool my tank to about 28C, but water level drops real fast.Have to top up about 5-8 litres every couple of days.

[Rupert]

I have seen in HK another small chiller called:

Hailea HL 80-OCHV
4.5 kg
requires 300 -650 liters per hour throughput
dimensions 320 x 245 x 230

it is like the Resun CL85 in that is uses the same technology and is approximately the same price

[celticfish]

pardon my ignorance but what is TEC and TEM?

[spinex]

I have seen in HK another small chiller called:

Hailea HL 80-OCHV
4.5 kg
requires 300 -650 liters per hour throughput
dimensions 320 x 245 x 230

it is like the Resun CL85 in that is uses the same technology and is approximately the same price

Rupert,

Good find in HK again

We used to have this brand in SG before but seem like nowadays it's not available already.

http://www.hailea.com/produce.htm

Spec of the chiller you mentioned

http://www.hailea.com/chiller3.htm#

How much does this cost in HK ? The only drawback is using peltier technology i guess the noise from the fan will be quite loud because it need to be powerful to cool the heatsink

[spinex]

pardon my ignorance but what is TEC and TEM?

It refer to THERMOELECTRIC COOLER and THERMOELECTRIC MODULE. Both are refering to the peltier chip which is using thermoelectric for cooling.

This is what the CL150 ..CL85 uses for cooling. It's not running a compressor like CL280 and above series.

[Rupert]

Rupert,

Good find in HK again

We used to have this brand in SG before but seem like nowadays it's not available already.

http://www.hailea.com/produce.htm

Spec of the chiller you mentioned

http://www.hailea.com/chiller3.htm#

How much does this cost in HK ? The only drawback is using peltier technology i guess the noise from the fan will be quite loud because it need to be powerful to cool the heatsink

Thanks for the specifications; I am sure that it said 4.5 KG on the box. These small Hailea chillers seem to be recently new to Tung Choi street and the three places that had them were selling for $HK980. Interestingly they are described as “toy’s”, probably not in a bad way but in the context that they know I live in SG and they do not think that that these small chillers will handle the hot weather later in the year.

[spinex]

In my limited chinese i will do a simple translation of the spec.

Voltage : 220v/50hz
Amp : 1.0A
Power (i guess this refer to the peltier chip) : 130W
Water volume for cooling : 80L
Cooling time : 20H (20 hours i guess)
Before/After temp of water chilling : 28/23 degree
Before/After temp of water heating : 15/23 degree
Circulation of water : 250-600L/H
Weight : 6.31kg
Dimension in mm : 320×245×230

The above figure is derived from a room temperature of 30C degree, water temp of 28C degree with 80L of water.

It also state that the water circulation volume and the placement of the unit will have a effect on the chilling capabilities. If air circulation in the room is not good it will also have effect on it.

I think this will be a good unit if you have 60-70L of water. Considering our room temp range is 29-33 at the most. We should be able to achieve 25-26 degree.

[silane]

There is a flood of peltier based commerical made chiller in the recent market and some hobbyists are making peltier chiller for themselves or for sales.

I have made myself a couple of peltier based chiller and have some dissapointment with it and some success stories to share.

For peltier to work, the hot side has to be cool, so the the delta temperature of the cold side can drop, something, we have to take note here is our ambient temperature is high, lowly powered peltier will do not do the work. And if use a peltier of high power is used, the electrical bill will be higher than phase-change chiller, this is especially prominant in a larger tank.

Attached is a chart that you can use to choose a peltier or peltier based chiller suitable for you tank size.

For case of CL-85, if 85 means the electricity wattage of peltier (I believe), then go down the electcity column, any value less than 85W which mean the chiller can operate on. Those mark red are usable one.

If a chiller with one total power comsumption is specified, use the Electricity Comsumption column, say, 85W, those row in green can be used.

Assumption made for calculating the values in the chart:
- Cooling power is 0.6 of electrical power of a peltier. Cooling power is not a contant value and its varies, but 0.6 is a good assumption
- No other equipment is introducing heat to your tank, like light and filter introduce head. Air from air pump heat up chilled water too.
- 0.85 for Power supply efficiency is used.
- VERY Ideal case for heat transfer.

Hope this post helps you to determine a suitable peltier best chiller for your tank size, room temperature and the temperature you want to achive. Note that the chart is based on very ideal case, you have to add in heat introduced by lamp, filter and other to Qc to work backward.

[wychay]

Hi everyone,

Hope the thread owner dont mind since we are talking about cl85 too.

Got a question. Hope the chiller gang ( esp those using Cl85 ) can help.

I just brought a cl85 to cool a 1.5ftx 1 x 1 tank last Sat. Was using a DIY TEM chiller previously but worried abt safety hence discommissioned it.
The thing has been on like for the last 48 hours. The temp now is at 27.7 c while the room temp is at 30 c with the lights on for about an hour. I preset it to 27 c.

This is what I have other than the tank:
a. Atman CF 600. flowrate max is at 740 but set both in and out around 1/3 to hit 300 according to the chiller specs
b. 2 x 11 PL light
c. water approx 48 l based on 2-3 in gravel.

Can anyone especially cl85 owners comment if this is expected ? Do post your spec if possible - thanks.

About to give up with this thing and switch to fan instead.


Thanks in advance.

[spinex]

wychay,

I think your result is in line with what the CL85 can do. As expected, do not expect the TEM chiller to work wonders

[wychay]

Thanks for the reply.

Spoke to the support and they are coming down to check it out.

Lets see what they say and I will post the comments from the horses mouth.