Safety Information; Installation - VEAB VFLPG-MTUL Handbuch

VFLPG / VFL / VTL
VFLPG / VFL / VTL

Safety information

1. This appliance may be used by children aged eight years or above, people with
physical and mental disabilities as well as those who lack any experience, provided
that they have received detailed instructions about the functionality of the appliance
and any risks. Children must not play with the appliance. Cleaning and maintenance
must not be performed by children without proper supervision. Children under three
years of age should not be near the appliance without constant supervision.
Children between three and eight years old may only turn on/shut off the appliance
if it is located in a suitable position and they have received instructions about the
proper course of action, or are being supervised. They shall also be informed about
possible dangers. Children between three and eight years old may not connect the
device, change its settings or perform care/maintenance.
2. The installation must be carried out by qualified and authorized personnel.
3. The heater supply voltage and loading specifications appears on the circuit diagram
on the inside of the lid and on the ratings plate on the outside of the lid.
The circuit diagram also contains information about the thermal cut-outs.
4. The allowed ambient temperature is -20°C ... +30°C.
The heater is made for a highest outgoing air temperature of 50°C and that is also
stated on the ratings plate.
5. The heater must be connected to the mains using permanently installed cables.
The fixed installation must include an all-pole switch. The cable glands must be
selected such that the IP class of the heater is maintained. The protection class of
the heater is stated on the ratings plate.
6. Heaters of type -MTUL does not have a built-in airflow dependent interlocking
device, so they have to be connected in such a way that the supply voltage must
not be switched on unless the associated fan is switched on at the same time or in
advance. Furthermore, the associated fan must not be switched off unless the
heater supply voltage is switched off at the same time or in advance. For loads
higher than 30kW we recommend a fan after-blow time of at least 3 minutes,
to avoid tripping of the thermal cut-outs due to the remaining heat. The air velocity
through the heater must be at least 1.5 m/s. Heaters of type -MQUL does have a
built-in electronic airflow dependent interlocking device that ensures that the load
is not active unless the airflow through the heater is sufficient. Inlet air must be
filtered to avoid contamination of the airflow measuring sensor.
7. The heater is CE marked and made in accordance with these standards:
EN 60335-1 / EN 60335-20 / EN 61000-6-2 / EN 61000-6-3 / EN 62233.

Installation

1. If the heater is not to be used within three months, it must be stored in a dry room (max. 40% RH).
Heater type VFLPG/VFL/VTL is designed for installation in duct systems.
Heater type VRA is designed for installation in an air handling unit.
2. The airflow direction through the heater must follow the arrow on the heater lid.
3. The heater may be installed in a horizontal or a vertical duct, with the junction box sideways.
Installation with the junction box upwards or downwards is
4. Inlets into rooms must be covered with a fixed grilles or air inlet unit that prevents the heating
elements from being touched, in the case a grille is not installed on the heater.
5. A warning text regarding not covering the heater should be placed next to the outlet air opening.
6. The minimum distance to duct bends, dampers, filters, etc. must be at least the same as the diagonal
measure of the heater, i. e. from corner to corner of the duct section of the heater. Otherwise there is
a risk for irregularities in the air through the heater, which may trigger the overheat protection.
7. The heater may be insulated in accordance with applicable regulations for ventilation ducts/ventilation
devices. The insulation must consist of fireproof insulation material. The insulation may not cover the
lid as the ratings plate and warning sign must be visible and the lid must be accessible for opening.
NOT allowed.
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