[2009-07-01 13:47:52] Thanks Alex

[2009-07-01 13:47:37] Hi it's on a cascade between the HT and LT

[2009-06-27 09:40:04] you can use any way in your expertise for defrost ing, or sometime, some systems were used heat recover loop (glycol) for defrosting

[2009-06-26 19:45:20] Hi Andy I dont think anybody has a mechanical valve but there are some cheap electronic valve in the market and the capacities are increasing. You can give me a ...

[2009-06-26 19:42:19] Hi Frederick I agree with Andy about the defrosting MT coils by off cycle. You can also use hot gas defrost on the low stage. If you have no time issues you can ...

[2009-06-26 18:05:21] Where is the plate heat exchanger in the system is it on a bore hole or the dry cooler

[2009-06-26 17:41:36] Hi Frederick It depends on the application you running if it is sub critical on a ht application you can defrost off cycle If you are running a trans critical ...