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AIR BOOSTER 2
© STULZ SpA . – all rights reserved EN/10.2018/IT30I
absorbed by the users (check manual part 2). These cables must be compliant with current
standards.
DANGER
The inobservance of these points can provoke damages or malfunction of components and
warranty shall become forthwith void.
For use of leakage-current (FI) circuit breakers, EN 50178 5.2.11.2 must be taken into
account. Only type B pulse-current FI circuit breakers are permitted. FI circuit breakers do not
provide protection against bodily harm during operation of the unit or frequency converters.
Connections of Air Booster 2 unit
8. Start-up
8.1. Commissioning
Before performing initial start-up, install and connect the system as described in chapter
"Installation".
• Make sure that the general switch is turned off and that the system is not live.
• Check that all the power switches and control fuses in the electrical system are off.
• Check that the power cable and terminals, including the PE terminals, are correctly connected.
• Check the contactors move freely.
• Switch on the unit with the general switch.
• At this point the electronic board is powered and individual components can be enabled to check
they work properly. The main operations that can be performed during installation are described in
the controller manual.
• Press the ON-OFF button near the display to start the unit.
8.2. Checks after commissioning
• Check the current absorption of the fan and compare it with the values indicated in the technical
data.
• Check the electrical absorption of all the components.
Connection for temperature probes
Connection for main power supply
Connections for general alarm, re-
mote control, modbus management
