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© STULZ Tecnivel – all rights reserved
EN/02.2021 Technical data subject to modifi cations
Air Handlers Units
ClimaPac Series
4.3
Installation
4.3.1 Electrical connection
Before working with electrical wires, make sure they are de-energized.
Electric cables are only to be connected by authorized specialist.
Before connecting electrical wires, check the following points:
• The unit must be equipped with an earth connection.
• Power supply specifi cations (voltage, frequency) match the indication on type plate and/or indica-
tions on wiring diagrams supplied with the unit.
• Components and cables are in good conditions.
General recommendations regarding electromagnetic interferences (earthing, cable length, shielded
cables, etc.) must be observed.
Cables used for wiring work (cross section, length, layout) must be chosen according to electric speci-
fi cations of the unit (available on the electrical data sheet on demand) and must be in accordance with
local requirements.
Units are supplied with integrated control and electrical cabinet:
Only the main switch, located in the electrical cabinet is to be connected to the power supply accord-
ing to the wiring diagram of the unit.
The electric cable must be introduced into the electrical cabinet from below, passing it through the
hole drilled on the lower part of the cabinet.
Modules must be electrically connected using the special connectors, as shown below
Connector for electrical connection of modules
4.3.2 Connection of drains
Components using water (evaporative pads humidifi ers, water coils) are provided with a drain for emp-
tying it (e.g. condensate pan).
To avoid any trouble due to the pressure (positive or negative) in the sections where there is a drain,
every water outlet must be provided with a siphon of suffi cient height to overcome the static pressure
of the unit, as explained below:
The minimum height of the siphon must be equal to 2H, calculating H according to the following
formula:
H (mm)=
P(Pa)
10
P: total pressure (positive or negative) of the unit fan:
