Help with CL 280 Chiller

[Andrewsreef]

Jeremy, I am having a problem with the tubing connections that came with the chiller. I purchased 3/4" tubing (inside Diamater) per the instructions that came with the chiller. This tubing fits nicely over my Mag 7 fittings and the fittings on my tank (1/2" PVC with outside diamater 3/4"). The problem is the tubing fits very loose over the black plastic inlet and outlet connectors that came with the chiller. I am sure I can crank down on the hose clamps but I am still concerned about leakage with connection being so loose. Please advise and help.

Thanks so much.

Andrew

 

[Jeremy B.]

Hi Andrew,

Take the tubing and push it all the way down over the barbs on the chiller, as far as it will go. Then take some metal screw drive hose clamps and tighten them down. I have the same exact setup on my office tank with no problems!

 

[Andrewsreef]

Are you sure the inlet/outlet is the correct one for this chiller? The hose I have will push very easily over the barbed section and will try and push over the smooth section before the bend. Also, the whole at the tip is very small (outside diamameter 1/2 inch and inside diamater proably only 1/4" to 3/8") This will put a lot of pressure on the pump? Is a Mag 7 to large for this chiller?

Also, thank you for the fast delivery. I ordered the chiller on Friday and it came on Monday. Great service.

Thanks again.

Andrew

 

[Jeremy B.]

Hi Andrew,

Yes, those are the correct bars you received. They do pipe down pretty small right on the tip of them. The Mag7 could be too much for the chiller depending on how close or how far the pump is going to be from the unit. If the chiller is within just a foot or two from the pump, then I would recommend going to something like tha Mag3. Once you tighten down on your clamps you will not have any problems with leakage.

Thanks,
Jeremy

 

[Andrewsreef]

Will a MAG 3 be enough for turnover for my tank as I only want to use one pump for turnover from the sump? I have a 20 gallon refuigum for a sump. The Chiller is a few feet from the tank on a stand so proably about 10 feet of hose or so in total. It will proably be pumping up to about 4 feet of height as I have a 42 inch stand that the tank sits on.

If you think I would be better off with a Mag 3 or do they make a Mag 5, can I exchange this one?

Thanks again.

Andrew

 

[Jeremy B.]

Hi Andrew,

If the Mag7 is your main return pump going through the chiller first, then back to the tank, then use it. You can always put a ball valve on it turn it down a notch if you need to.

 

[bill-e]

Jeremy,

I have the same chiller and the same problem. 3/4" is too big. The largest tubing you can fit over the widest part of the barb is 5/8. I had to make a 5/8 to 3/4 adapter to get it to work.

I'd love to know what size tubing is in the chiller as my flow is very slow.

Right now I'm running a 5yr old Sen 700 w/new impeller with what the R/C pump head calculator says I should be getting over 500gph.and I'm getting less than 200. I was just about to order a mag 9.5 and I performed the flow test so now I'm not sure even that will help much.

 

[Andrewsreef]

Well, I re-plummed the chiller using PVC fittings and the Mag 7 is circulating much better. It is also not leaking any more as I was having some issues with the fittings provided.

Thanks

Andrew

 

[bill-e]

Andrew,

Could you tell me what pvc pieces you used? I'd like to pick some up on the way home from work.

Thanks.

 

[Andrewsreef]

Ok, but I am not to good at the names of the pieces. What I did was take one of the black threaded caps with me and some 3/4" internal diamater hose.

You need the following- 2 Threaded sleeves one for the input side and one for the output. These were treaded on one side to screw on to the chiller. I used some teflon tape on the threads. The other side was smooth and I glued a reducer to it. The reducer was threaded to take a 3/4 inch where I screwed a threaded 3/4 inch hose adapter. I used teflon tape on this and the hose goes over this with a hose clamp.

All materials cost me $5.50 and you will need 3 pieces each (6 for both sides)

Hope this helps.

ANdrew

 

[Khairilasny]

CL-280 Chiller a Resun chiller?