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Thread: r407c chiller issue
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08-01-2008, 02:49 AM #1
r407c chiller issue
Hi sir
We need to make r407c chiller for our customer. The condenser and evaporator are both plate heat exchanger. Liquid drier and TEV are selected for 407c. I'm not sure if there any special concerns in production process comparing to r22 chiller production as follows:
1) leak test
2) vacuuming
3) charge
4) factory runing test
Is there any special tool for r407c process?
May be there's no difference,but I want to make sure before moving to volume production. Thanks in advance!
best regards
LC
I hear...I forget;I see...I remember;I do...I understand
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08-01-2008, 07:50 AM #2
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Re: r407c chiller issue
No special process except, great care wit oil (mutch more hygroscopic than mineral), and tools dedicated to R407 in order to not cross contaminate mineral and POA oil (vacuum pump with suitable oil, gauges, hoses).
I am just curios, did you making only one or more of one chiller?Last edited by nike123; 08-01-2008 at 07:59 AM. Reason: adition
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08-01-2008, 01:15 PM #3
Re: r407c chiller issue
It's impossible to make anything foolproof because fools are so ingenious...
Don't ever underestimate the power of stupid people when they are in large groups.
Please, don't teach me how to be stupid....
No job is as important as to jeopardize the safety of you or those that you work with.
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09-01-2008, 01:22 AM #4
Re: r407c chiller issue
thanks.
we get the order of total 32 pieces this time. It's a small quantity comparing to our r22 chillers
regards
LCI hear...I forget;I see...I remember;I do...I understand
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