Air-Flow Direction; Motor Protection; Electrical Heating Register; Functional Safety - Emergency Operation - Helios ALB EC 125 EH Notice De Montage Et D'utilisation

Installation and Operating Instructions
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ALB EC EH
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IMPORTANT NOTE
CHAPTER 2

GENERAL INFORMATION

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ATTENTION
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ATTENTION
* (performance and noise data from the
currently applicable Helios documentation
and the internet)
Fresh Air Boxes – ALB EC
1 .7

Air-flow direction

Air-flow direction must correspond to the arrows on the unit.
1 .8

Motor protection

All motors have thermal contacts, which are wired in series with the coil and switch off automatically and restart after
cooling.
1 .9

Electrical heating register

The heating register only activates if the supply air fan is extracting the minimum flow rate and there are no errors. If the
unit is switched to standby mode, the supply air fan will run for 60 seconds in case the electrical heating register was
activated before that. If the electrical heating register is previously deactivated and e.g. the unit is switched to standby
20 sec. later, the supply air fan will then only run for 40 sec.
General information on the electrical heating register
The electrical heating register is equipped with two safety temperature limiters (STB), the STB (auto reset = trigger tem-
perature +88 °C) (manual reset = trigger temperature +120 °C) are connected in series. Once a STB is triggered, the
electrical heating register will be disconnected from the power supply and an error will be displayed on the controller.
1 .10 Functional safety – Emergency operation
When using the unit in an important supply function, the plant is to be designed so that emergency operation is auto-
matically guaranteed in case of fan failure. Suitable solutions are, for example: parallel operation of two less powerful
units with a separate electric circuit, standby fan, alarm systems and emergency ventilation systems.
2 .0 Warranty claims – Exclusion of liability
All versions of this documentation must be observed, otherwise the warranty shall cease to apply. The same applies
to liability claims against Helios. The use of accessory parts, which are not recommended or offered by Helios, is not
permitted. Any possible damages are not covered by the warranty. Changes and modifications to the unit are not
permitted and lead to a loss of conformity, and any warranty and liability shall be excluded in this case.
2 .1 Regulations – Guidelines
If the product is installed correctly and used to its intended purpose, it conforms to all applicable provisions and EU
guidelines at its date of manufacture.
2 .2

Shipping

The unit is packed ex works in such a way that it is protected against normal transport strain. Carry out the shipping
carefully. It is recommended to leave the fan in the original packaging. The unit must be kept in the housing or lugs
provided (if applicable) for transportation or installation. Only use appropriate lifting equipment and fastening devices.
Weight specifications according to the delivery note or information on the unit.
Do not transport fan on the connection cables, terminal box or impeller!
Do not stand under suspended loads!
2 .3

Receipt

The shipment must be checked for damage and correctness immediately upon delivery. If there is any damage,
promptly report the damage with the assistance of the transport company. If complaints are not made within the agreed
period, any claims could be lost.
2 .4

Storage

When storing for a prolonged time, the following steps are to be taken to avoid damaging influences: Unit protection
by dry, airtight and dust-proof packaging (plastic bag with desiccant and humidity indicators). Vibration-free, water-tight
and constant-temperature storage at a temperature in the range -20 °C to +40 °C, which must not be exceeded.
In case of storage below 0 °C, the unit must be left in standby mode under operating conditions for at least 2
hours before commissioning, so that the internal temperature can equalise .
In case of a storage period of more than three months or motor standstill, maintenance must be carried out before
commissioning. In case of reshipment (above all, over longer distances; e.g. by sea), it must be checked whether the
packaging is suitable for the form and route of transport. Damages due to improper transportation, storage or putting
into operation are not liable for warranty.
2 .5

Performance data

The motor type plate gives an indication of the mandatory electrical values. These must be coordinated with the local
supply network. The fan performances* were established on a test stand according to DIN EN ISO 5801: 2010-12; they
apply to the nominal speed and standard design without protection grille with unhindered inflow and outflow and an
intake and pressure-side pipe section with length 2.5 x length duct side. Different versions and unfavourable installation
and operating conditions can lead to a reduction of output.
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EN