coolseed
16-07-2009, 01:31 AM
Hi All
I hope you guys or girls may be able to help. We have bought a 2nd hand unit 1984 Copeland D9RC-1000-EWM-000 (7.5kW 3pH with matching evaporator Muller MHDE071 Fans 0.6/0.4kW and heater 5.25 KW) and a condensor about 1 sq m in size, and some padded pipework which is apparently some kind of adjustment choke system on it, put on an insulated 20ft (28 cum volume) container aftermarket.
We have been told it is a freezer and will be inefficient if choked, or would need another condensor ? added to it to run as a frig 2-4 degrees C (for packaged seed) so we would be better off (in terms of cost of power at 20c per kWhr ) to sell it and buy a single phase frig unit new to chill the container.
A different frig guy says he can get it to work as a frig on the container and thinks it will only run when it needs to (no modulation issues like a reefer) say for a couple of hours a day which would not be too expensive say $6 a day c.f. a standard reefer container which runs say 16 hours a day and cost about $30 per day to run. ($7,000-$11,000 a year more)
Also we want to build a 60sqm coolroom next summer.
Will this beast work reasonably cost effectively for either use on the container or the coolroom as a frig unit at +2 to4 C with only going in/out about once a day. (We know the more modern scroll condensors are more efficient but not by how much).
Hope you can help.
Cheers, Christine (damsel in frig distress!) :confused:
I hope you guys or girls may be able to help. We have bought a 2nd hand unit 1984 Copeland D9RC-1000-EWM-000 (7.5kW 3pH with matching evaporator Muller MHDE071 Fans 0.6/0.4kW and heater 5.25 KW) and a condensor about 1 sq m in size, and some padded pipework which is apparently some kind of adjustment choke system on it, put on an insulated 20ft (28 cum volume) container aftermarket.
We have been told it is a freezer and will be inefficient if choked, or would need another condensor ? added to it to run as a frig 2-4 degrees C (for packaged seed) so we would be better off (in terms of cost of power at 20c per kWhr ) to sell it and buy a single phase frig unit new to chill the container.
A different frig guy says he can get it to work as a frig on the container and thinks it will only run when it needs to (no modulation issues like a reefer) say for a couple of hours a day which would not be too expensive say $6 a day c.f. a standard reefer container which runs say 16 hours a day and cost about $30 per day to run. ($7,000-$11,000 a year more)
Also we want to build a 60sqm coolroom next summer.
Will this beast work reasonably cost effectively for either use on the container or the coolroom as a frig unit at +2 to4 C with only going in/out about once a day. (We know the more modern scroll condensors are more efficient but not by how much).
Hope you can help.
Cheers, Christine (damsel in frig distress!) :confused: