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» Film-Tech Forum   » Operations   » Large Format Forum   » Looking for information about cleaning IMAX Water Cooling systems

   
Author Topic: Looking for information about cleaning IMAX Water Cooling systems
Dan Reiter
Film Handler

Posts: 74
From: Easton PA
Registered: Jul 2002


 - posted 09-01-2009 12:25 PM      Profile for Dan Reiter   Email Dan Reiter   Send New Private Message       Edit/Delete Post 
While we sell the 12 & 15 K lamps, we do get the occasional question about cooling system care.

Is there a good source, document, or site that has some good info, especially for cleaning out algea and sediment?

Thanks!

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Bob Brown
Expert Film Handler

Posts: 146
From: Grand Rapids, MI
Registered: Apr 2002


 - posted 09-01-2009 02:19 PM      Profile for Bob Brown   Author's Homepage   Email Bob Brown   Send New Private Message       Edit/Delete Post 
Dan,

I would contact IMAX and ask for Vic Benson. He is the guy for GT systems. He sure would have your answers....

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Adam Martin
I'm not even gonna point out the irony.

Posts: 3653
From: Dallas, TX
Registered: Nov 2000


 - posted 09-01-2009 08:09 PM      Profile for Adam Martin   Author's Homepage   Email Adam Martin       Edit/Delete Post 
1. Disconnect output hose from chiller.

2. Turn on water.

Note: Reverse steps 1 & 2 if you haven't showered in a couple of days.

3. Vacuum algae and sediment from floor. [Devil]

 -

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Dan Reiter
Film Handler

Posts: 74
From: Easton PA
Registered: Jul 2002


 - posted 09-03-2009 11:01 AM      Profile for Dan Reiter   Email Dan Reiter   Send New Private Message       Edit/Delete Post 
What agent, chemical, or cleaner have you used when flushing the system?

I guess that is a good place to start, and a big piece of the answer.

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Adam Martin
I'm not even gonna point out the irony.

Posts: 3653
From: Dallas, TX
Registered: Nov 2000


 - posted 09-03-2009 07:39 PM      Profile for Adam Martin   Author's Homepage   Email Adam Martin       Edit/Delete Post 
I've never actually needed to flush a system. The CCU has several filters which get changed regularly and should eliminate any sediment in the cooling system. A roof-mounted chiller may also have an antifreeze added.

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Gordon McLeod
Film God

Posts: 9443
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 09-04-2009 08:10 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
I only drained ours a couple of times but never flushed it out

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System Notices
Forum Watchdog / Soup Nazi

Posts: 215

Registered: Apr 2004


 - posted 02-06-2011 09:15 AM      Profile for System Notices         Edit/Delete Post 

It has been 520 days since the last post.


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Dave Macaulay
Film God

Posts: 2081
From: Toronto, Canada
Registered: Apr 2001


 - posted 02-06-2011 09:15 AM      Profile for Dave Macaulay   Email Dave Macaulay   Send New Private Message       Edit/Delete Post 
The lamphouse circuit should never need cleaning. The chiller/city water loop can be cleaned by whatever procedure a HVAC contractor would clean a chiller loop. I've seen them add some chemical to the chiller water, run it for a while, then flush it really well. I don't know how you might clean a city water loop. Or if you ever need to.

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Jake Spell
Master Film Handler

Posts: 294
From: Johns Island SC
Registered: May 2009


 - posted 02-07-2011 12:34 AM      Profile for Jake Spell   Email Jake Spell   Send New Private Message       Edit/Delete Post 
City water can contain minerals and leave behind scale and other deposits lowering the efficiency of the heat exchangers. If it ever gets to this point then a de-scaling solution can be added and circulated but I dont advise this as it WILL eat away the metal in the system, so unless you have tried every other solution and are still getting temps that are too high, dont use a de-scaler.

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Dick Vaughan
Phenomenal Film Handler

Posts: 1032
From: Bradford, West Yorkshire, UK
Registered: Jul 2000


 - posted 02-07-2011 07:10 AM      Profile for Dick Vaughan   Author's Homepage   Email Dick Vaughan   Send New Private Message       Edit/Delete Post 
Hopefully you shouldn't be running on city water long enough to allow mineral scale building up, it's only there as a backup for when the chilled water system is down.

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