Refrigeration plant upgrade

One of our customers had a failed compressor on the condensing unit for one of their coolrooms, this brand and model of unit is from a different era. We worked on plenty of these back in the early days and found them to be extremely capable and reliable – hence why the unit has lasted this long. There are no “off the shelf”replacement options for a compressor of this age and style.

We looked at all the factors when deciding on options  for a resolution, including limited access to the plant area, some of this larger equipment was lifted in prior to the walls being completed, there is no access now large enough to safely get a new unit of that size in. Sure we can get the old one out of the manhole face down on a hoist, but that’s ideally not how you want to  get your brand new unit in.

Existing system was 3 phase, still operating on interim replacement gas for R12, flared TXV and also many other relics from the past.

Converting the system from R12 to operate on R404A allowed us to be able to downsize the modern equivalent replacement condensing unit when compared to the energy consumption of the original 3 phase unit.

We specified a new R404A single phase Enthalpy condensing unit complete with oil separator. The original evaporator coil was pressure tested to ensure it was not leaking and then fitted with new solder TXV.

The old mechanical control system was upgraded to a new Dixell controller, switchboard tidy and connections by our sparky. If you have refrigeration plant that needs upgrading it makes sense to consider all options and look at the bigger picture – talk to MNK and we can steer you in the right direction.