Version No. 1-4 - 02.06.2021
Doc. No. 992300110
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7. Mounting
The power supply rating on unit rating plate must comply with mains rating.
Always disconnect the power supply before opening the unit.
Seifert heat exchangers have an extremely compact design and construction, giving them the advantage of
occupying very little space. In addition, the RK-2114 A/AM, RK-2114 A/AM 632 and RK-2116 A/AM models can be
mounted externally or internally, as required.
To achieve a good seal between the control cabinet and the heat exchanger, the unit's mounting surface on the
control cabinet may need to be reinforced. The air intake and outlet must not be obstructed by equipment
inside the control cabinet, so that the air is mixed thoroughly and thermal stratification is avoided.
For the heat exchanger to work perfectly, the cabinet must be completely sealed from its surroundings. An
imperfectly sealed control cabinet will result in an increased level of condensation. The control cabinet should
have a minimum of IP54 protection, in accordance with IEC 60 529.
Use of the mounting template
The mounting template enables the unit to be installed quickly. For mounting the template should be attached
to the wall of the cabinet and the holes for the fixing screws should be drilled in the wall of the cabinet in the
marked positions.
Cooling medium connection
There are two pipe connection points on the bottom (RK-2114, RK-2116, RK-2140) or in the side (RK-2124) of
the unit to connect the refrigerant supply. The piping used for the supply must have an internal diameter of 10
mm or 13 mm depending on the model. The pipe connectors have a ¼” thread (1/2" RK 2125948 / RK 21259500
/ RK 2149) and can be replaced with other connectors for larger or smaller pipe diameters. Before connecting
the coolant circuit, note the flow direction of the coolant medium. Next to the pipe connectors, the letters “E”
and “A” are visible on the unit.
E
coolant intake
A
coolant outflow
To empty the unit connect the water inlet pipe to a compressed air supply and route the water outlet pipe to a
location where the water can be drained. Set the thermostatic head inside the unit to a set-point lower than
ambient temperature to ensure it opens and slowly open the compressed air supply till all the water in the heat
exchanger is flushed out. Ensure that the pressure of the system is below the rated pressure of the unit and
fitting.
