Subject to technical changes | Valid as of January 2022
31
CALEO COLD/NEUTRAL
2.4.2. Refrigeration-related information
Units without their own cooling unit have to be installed exclusively by an authorised refrigeration firm.
NOTE
All units are equipped with coated fin coil evaporators. The connection pipes lead out downwards through the foamed refrigerated
well. All pipes are installed and insulated. Units that are configured with gas dampers for the opened position of the fin coil evapo-
rator must be checked monthly to make sure they work (model dependent).
Solenoid valves, filter dryers and possibly also back pressure regulators must be installed by the customer.
NOTE
Various dangers when disposing of refrigerants
Wear protective gloves and safety glasses during the disposal of refrigerants (propane, R404A, R134A etc.). Working with
open flames is forbidden during the disposal of refrigerant. Dispose of the refrigerant properly and in an environmentally
compatible way. Observe country-specific laws.
Various dangers during the disposal of damaged parts/components
When disposing of damaged parts/components, wear protective gloves. Dispose of damaged parts/components properly
and in an environmentally compatible way. Observe country-specific laws.
With self-contained units, the pipework is firmly connected to the refrigeration unit, and the refrigeration
circuit is filled with refrigerant. Display cases with expansion valves and those as of a specific size have an
inspection glass with a moisture indicator (for checking in case of service). It is located beside the conden-
ser. There is no inspection glass for self-contained units with propane (R290) as a refrigerant.
Self-contained units
Remote refrigeration units are designated for connection to an existing refrigeration plant provided by the customer. The copper
tubing is insulated and leads out downward through the foamed refrigerated well with convection cooling. The evaporator is equip-
ped with an expansion valve for the desired refrigerant and filled with dry nitrogen. The specified evaporation temperatures, as well
as condensing temperatures, must be kept constant. Steam components must be avoided in front of the expansion valve.
Remote refrigeration units
WARNING
WARNING
All work, installations, deliveries and services may only be carried out by authorised refrigeration companies and qualified
specialists. The state of the art, relevant legal provisions, regulations and guidelines of government agencies, professional and
trade associations must be complied with. The installed refrigeration system must be put into operation, and a functional and safety
test performed. The report must be submitted to the client.
Connection work
For services purposes, the refrigeration system including the stainless steel housing can be pulled out
to the front (operator side).
Do not pull or damage the lines that are behind it.
CAUTION
Содержание CALEO AIR TOWER
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