smpsmp45
15-05-2007, 07:49 AM
We are installing Mono Block Wall Mounted Refrigeration Units for our cold stores.
The Units are designed for +45 Ambient Air.
for 15 days , especially in South India, the Ambient goes to @ 50 Deg C. & the units start tripping on HP.
We are trying out a simple method to prevent this.
We are putting up Al pipes from the Cold Store Inside to Condenser coil area & are putting the Al wire mesh on top of that.
That helps in cooling the Air going on to the Condesner coil , though it takes up some coling load from Inside.( as due to conduction, the AL wire mesh gets cool)
With this, the High Ambient temp period is taken care of.
But when the units trip on Temp or stop for defrosting, the Al wire mesh gets frosting. This becomes more critical if the rooms are Sub Zero rooms.
I was planning to put up Pressure eqaliser vavles so that some cold air is thrown on the condenser coil. But the pressure inside is more than out side & air gets sucked inside the cold store instead of going out.
Any suggestions/ any practical methods?
If needed I can post a small sketch shwoing what we are doing.
The Units are designed for +45 Ambient Air.
for 15 days , especially in South India, the Ambient goes to @ 50 Deg C. & the units start tripping on HP.
We are trying out a simple method to prevent this.
We are putting up Al pipes from the Cold Store Inside to Condenser coil area & are putting the Al wire mesh on top of that.
That helps in cooling the Air going on to the Condesner coil , though it takes up some coling load from Inside.( as due to conduction, the AL wire mesh gets cool)
With this, the High Ambient temp period is taken care of.
But when the units trip on Temp or stop for defrosting, the Al wire mesh gets frosting. This becomes more critical if the rooms are Sub Zero rooms.
I was planning to put up Pressure eqaliser vavles so that some cold air is thrown on the condenser coil. But the pressure inside is more than out side & air gets sucked inside the cold store instead of going out.
Any suggestions/ any practical methods?
If needed I can post a small sketch shwoing what we are doing.