Product Load Calculations for Freezer Rooms and Chiller Rooms

[janroy]

I have installed a smaller chiller and freezer rooms previously within three months client call me because the temperature of the rooms are not constant for the chiller +19°c that should be 0-2°c.when i sent our service technician he has observed that there was an icing forming in the solenoid valve and distributor. i told him to check all the nuts if there are leakage.He also told me that the stock are almost full in the room.Can someone Please help me with the load calculation of the room. What will be the maximum kg of stock that they should store in the room thanks in advance.

[Eeram]

What is the size of the room?
What temperature must the room maintain?
What is the product entering temperature?
What is the product?
What is the amount of product entering?
What is the ambient temperature?
What is the room construction?
What is the wall thickness?
How many times do they open the door?
What is the capacity of the existing compressor, condenser, evaporator?
What is the refrigerant?
Is it a solenoid valve or expansion valve where the ice forms?

So many questions to ask!