Wine cool room

[RapidAU]

Hi all

Been an active reader but first time poster. Great info on this forum.

I don't have any experience dealing with wine cool rooms but come across one that has standard refrigeration cool room equipment.

The problem: wine room struggles to come down in temperature (14 degrees celsius)

The dimensions of the room are: 2.1m x 7.5m x 3.2m (note that about half the panel surface area is made of up glass).

Current set up include:
Evaporator: Buffalo Trident BRO Z1 EVAP T05-003
Compressor: Embraco Aspera NJ9238GK
Condenser: Techumseh CAJT9513ZMHR
Ideal temp: 14 degrees celcius

Additional info:
- previous installer has put on a evaporator control fan (assuming to control the speed at which the room cools down)
- no equaliser and thus only 1/4 of the evaporator coils are icing up and are cold (assuming they wanted to restrict cooling of room)

What should the next steps be?
Will replacing the valve and allowing the entire evaporator to cool be best?
What is the ideal set up (equipment wise) for wine cool rooms? (e.g. humidity, slow temp change)

Thanks
Rapid

[mike live]

not enough gas getting through the coil. whats the super heat value. is it short of gas. If coil is frosting up in a 1/4 of coil sounds like your starving he evap of gas. put the evap fan on full to give a full load of heat to the coil and then see what pressures you get on your suction side. if the suction pressure is low you know the coil is low on gas?