Cold display cases
Technical changes reserved
Valid from October 2014
62
2.4. Information regarding refrigeration connection
All units are equiped with a coated evaporator coil. Expansion valves or capillary tubes are conneted with the eva-
porator and all refrigeration lines and electric wiring lead out on the bottom of the insulated well.
Self contained units (integral)
Remote refrigeration
These units are prepared for connection in an existing refrigeration plant, the copper tubes are insulated and lead
through the foamed well on bottom. Expansion valve for the corresponting refrigerant is installed on the evaporator
and the system is filled with nitrogen.
Components like solenoid valves, filter dryers and eventually Evaporator Pressure Regulators must be supplied
and installed by others. Evaporation temperature must be kept constantly to the require value - see also rating
plate of the unit.
Installation work
All installation and servicing work must be made by qualified refrigeration personnel only. The installation must
comply with the state of art, the local electrical-, health- and safety regulations and directives.
The whole installation is to take into operation and a function and safety test must be performed. A written report
of these tests must be given to the owner.
There are different ways to dispose condensate.
Closed cabinets (for assisted service) - self contained
Self contained displays for assited service (entirely closed with glass on front/top/sides and doors on operator
side) come with integrated evaporation of the condensate.
Displays for assited service (remote refrigerated) and all self serve displays
All these units are equipped with siphons (trap), so plumb connections or connections to external condensate
evaporation pans must be made in compliance with all Federal. State and Local plumbing Codes and Ordinances.
Ensure that condensate and wastewater can not reflux into the refrigerated well.
Self contained units are ready to use, all components are fixed and the refrigeration system
is filled with refrigerant. Units with expansion valves come with sight glass with humidity
indicator, placed beside the condenser coil.
The condenser unit is placed in a pull-out stainless steel housing and offers easy access for
service and maintenance work. Take care that the loop of copper tube is not overstretched!
2.5. Information regarding water and drain connection
All drain plumbing installations must be performed by a qualified plumber – in compliance with DIN
1988 for water and DIN 1986 for wastewater.
Summary of Contents for BAK G-53
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