Operating Conditions
• The appliance is designed for use indoors and at
ambient temperatures between 0° C and +40° C, in
unrestricted, and dust-free and chemical-free air.
• When designing the ventilation system, bear in mind
that air temperature at the outlet must be below 50°C
and that the air speed through the heating elements
must be at least 2 m/s.
• Electrical connections box protection rating: IP20.
• When the Pre-Heating Box unit is turned on and for
how long is automatically determined by the HRI-E
ONE control system.
Notes for Installation
• The heater must be installed along the intake duct
that carries cool air from outside the HRI-E ONE
and at least 50 cm from the appliance.
• The heater must not be installed horizontally with
the wiring box facing down; (fig.1).
• Should the heater be installed at the beginning of a
duct, the end of the pipe will need to be protected
with a suitable grille
.
• The air heater must be securely fixed to the duct so
that it cannot fall.
• The air heater must be insulated with non-
inflammable material as required by the safety
standards of the country where it is installed.
• Connect the electrical heating elements to a single
phase power supply.
• The cover of the electrical connections box must be
easily accessible in order to reset the safety
thermostat.
• The direction of air flow is not important.
• The air heater must be installed so that it functions
in conjunction with a fan and is only switched on
when the fan is functioning.
Connection with HRI-E ONE
Overheating
If the appliance overheats and the safety thermostat
strips, it can be reset manually. Switch off mains
power
before
removing
the
cover
from
the
connections box. This operation must only be
performed by authorised personnel
Maintenance / Cleaning
• This appliance does not require any special
maintenance except periodic checks for correct
functioning.
• Switch off mains power before performing any
maintenance. At least once a year inspect the
heating elements and remove any build-ups of dust
and dirt.
• Do not use solvents, and take care not to damage
delicate electrical components when performing
cleaning.
1
1
≥
500 mm
2
2
9
ENGLISH
