23
EN
Control Unit – Terminal connections
Take into account general and specifi c local regulations. Unit must be dis-
connected from any power source when any task is done over it. Qualifi ed
personnel must only carry out all actions described and mentioned. After
electrical connection, carefully check all terminals and carry out an initial
test. Check correct FU fuses work from control unit.
9. HEATING DISTRIBUTION CONNECTION
Check all hot water connections are in perfect condition before connecting heating
distribution to the air curtain unit. Furthermore, please check hot transmission
effect through components installed to ensure zero static, dynamic, and dilatation
forces at input/output neck connections. No excessive force may be applied when
connecting the hot water circuit to the air curtain’s water coil exchanger. You will
fi nd a mark that notes use of two keys so that no stressing of the necks occurs in
the course of tightening or loosening. When bolting and tightening up the screw
union of the water coil must be secured by a clamp against undesired rotation that
may subsequently result in deformations or damage to pipe necks on the heat
exchanger. For this reason is highly recommended the use of fl exible connections
between heating distribution duct installation and pipe necks.
By default, connection tubes are located on the base of vertical air curtain and are accessible after removing inlet grille.
Water input is identifi ed by red mark with an arrow pointing inside and, output, by blue mark with arrow pointing outside.
Media input
Media output
Do not swap inlet and outlet positions, this would cause drastic changes in water coil performance with conse-
quent effects on the hydraulic system. Do not exceed the maximum admissible temperatures and pressures.
