Dear All,

We have recently designed a cold room system in order to maintain Temperature = 4 - 6°C and Relative Humidity = 50 ± 5%.

We are achieving the conditions during most part of the day however we have problems during following situations:

1. DEFROST CYCLE:
During the defrost cycle the Rh is shooting upto 70% Rh which is not acceptable.

Defrost cycle is set for 3 minutes every hour.

2. COMPRESSOR CUT OUT:

During compressor cut off which is set at 4°C again the Rh is shooting upto 70%.

The above increase in relative humidity is not acceptable to the client even though the increase is only for 5 to 8 minutes in a hour.

Please give us your valuable suggestions regarding how to short out the problem.

Regards

vijay_study@rediffmail.com