Protective Ground Wire; Residual Current Circuit Breaker; Protecting The Motor; Commissioning - SystemAir IV Smart CA Instrucciones De Instalación Y Funcionamiento

8.4 Protective grounding wire
The protective grounding must have a cross-section equal to or greater than that of the phase conductor.
8.5

Residual current circuit breaker

All-current-sensitive residual current circuit breakers are required for use in alternating-current systems with 60 Hz, in combination
with electronic devices such as EC motors, frequency converters or uninterruptible power supplies (UPS).
8.6

Protecting the motor

Note:
i
In fans equipped with an EC motor, there is no addictional motor protection needed. The motor protection is integrated in the
electronics of the motor.
Important
Damage to motor due to overcurrent, overload, or short circuit.
◊ Use (all-pole) circuit breaker (characteristic C or K) or motor protection switches.
◊ Always connect thermo-contacts or cold conductors to a motor protection switch.
9

Commissioning

9.1

Safety information

◊ Commissioning may only be carried out by adequately qualified persons, details see Table 1 Qualifications, page 5.
◊ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment, page 5.
9.2

Preconditions

◊ Installation and electrical connection have been correctly performed.
◊ Residual material from installation and foreign objects have been removed from the fan and ducts.
◊ Inlet and outlet are free.
◊ Safety devices have been fitted.
◊ Ground cable is connected.
◊ Cable glands are tight.
◊ Nominal current (from the name plate) is not exceeded.
◊ Data on the name plate corresponds with the connection data.
9.3

Commissioning Report

Important
• It is recommended to fill out the commissioning report 16 Commissioning Report, page 16.
• Please keep the completed commissioning report in a safe place. In the case of a warranty claim, this report can be
requested by Systemair.
9.4

Tests before activation

◊ Check that safety elements and protection grilles are securely fastened.
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Commissioning | 11