ECLY Distribution Centre

Installation of large holding freezer and chiller for ECLY distribution centre, Penrose, Auckland.

The ECLY distribution facility consists of one large freezer operating at -20 degrees centigrade and one chiller room operating at 4 degrees centigrade.

Shannon Refrigeration installed two 18 hp DORIN DX condensing units operating on R404A with two REFSPECS heavy duty low temperature evaporator coils connected to each independant system.

The chiller is served by a 6 hp R404A condensing unit and two REFSPECS medium temperature evaporator coils.

PEGO pre-wired electrical boards were installed to control the chiller and freezer units and a custom control panel was designed and installed to control the heat recovery and underfloor heating systems.

All new plant and equipment is housed below ground level in a service tunnel. Heat from the air-cooled condensers is rejected to atmosphere through a garden mounted grille from the service tunnel.

Waste heat is recovered vis SWEP brazed plate de-superheating heat exchangers to heat a commmon water storage tank to 30 degrees centigrade. This heat is then circulated via a water pump thru a water to air heat exchanger which heats the air supplied to the underfloor heating system. 

The warm dry air keeps the ground underneath the freezer floor above 8 degrees centigrade and ensures that no condensation forms in the underfloor pipe work- all using free heat that would normally be thrown away!

PLANT TUNNEL BELOW GROUND LEVEL

ECLY PLANT.jpg

DORIN LOW TEMPERATURE CONDENSING UNIT

ECLY CONDENSING UNIT.jpg

SWEP BRAZED PLATE DE-SUPERHEATING HEAT EXCHANGER FOR WASTE HEAT RECOVERY

ECLY HEAT RECLAIM.jpg

UNDERFLOOR AIR HEATING COIL AND AIR DISTRIBUTION DUCTWORK. AIR COOLED CONDENSERS FOR FREEZER AND CHILLER CONDENSING UNITS.

ECLY HEAT RECLAIM COIL.jpg

REFSPECS FREEZER EVAPORATORS

ECLY FREEZER1.jpg

ECLY TEMP DISPLAY.jpg