9
7 - CHECKING BEFORE COMMISSIONING
Importante: Nunca se debe poner en marcha el equipo sin haber leído previamente la totalidad del manual.
Models 90 to 360
Models 420 to 600
Terminal box or electric cabinet
(depending on the options installed)
Access panel
Electric cabinet
7.1 Electrical connections
Installation norms
To perform the electric installation of the unit (cable glands,
conductor section and their calculations, protections, etc.), refer
to the technical characteristic table provided in the technical
brochure of this series, the electrical scheme included with
the unit and norms in eff ect that regulate the installation of air
conditioning units and electrical receivers.
The electric power supply of the unit must be sized in accordance
with the maximum power input by the unit taking into account
all the options it features (if necessary, refer to the technical
brochure).
Verify that electrical power corresponds to the one on the data
plate and that the voltage remains constant.
Connecting optional devices
Indoor units 40ZS/ZF have an auxiliary terminal box or electric
cabinet for the connection of optional elements such as the soft
starter, dirty fi lter pressostat, etc.
7.2 Checks in the centrifugal fans
- Before commissioning, check the blade rotation direction and
that the axis turns without strokes nor vibrations
- Once running, check the operation conditions: pressures,
fl ows and consumptions.
- The overlapping of characteristic curves of the fan and the
room is very important, so that the fl ows and pressures
provided to the duct network are as required.
Connection with the outdoor unit
In the case of connection of a unit 40ZS/ZF with an outdoor unit
38ZS/ZF, the instruction manual of the condensing unit should
be consulted (No.10258), since the electrical connection of both
units is explained there.
Check that the electrical connections are correct and
tight (an electrical diagram is included with each unit,
along with its legend).
Note:
All connections in the site are the responsibility
of the installer. These connections are always made
as per the current regulation.
To prevent electrical shocks, make all electrical
connections before energizing the unit. Check that the
automatic switch is closed. Omitting this can cause
personal damage. Make the ground connection before
any other electrical connection.
The installer must fix line protection elements
according to the eff ective legislation.
• Soft starter detail (optional):
Soft starter of the supply and/or return centrifugal fans which
prolongs the set time mainly aimed at installations with cloth
ducts. Compulsory for motors with an output of 15 kW and
above.