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Safety measures
The unit must be suitably clamped to ground.
It is necessary to follow these cautions and warnings:
- The unit must be lifted only by using the proper tools able to support the weight of the unit.
- No admittance to unauthorized or unqualified personnel.
- No operation on electrical components is allowed without having switched off electricity supply.
- No operation on electrical components is allowed without using insulated platforms; no water or moisture should
be present.
- All the operation on refrigerant circuit and pressurised components are to be performed by qualified personnel
only.
- Compressor substitution or oil addition in this one must be performed by qualified personnel only.
- Sharp edges and coil surface are a potential injury hazard. Avoid contact with them.
- Disconnect all power to the unit while servicing condenser fan motors. Failure to do so may cause body injury.
- Avoid unrelated bodies into the water piping during the unit connection to the water system.
- It is necessary a mechanical filter for the piping connected to the exchangers entry.
Installation
Before any operation please check the instruction for use.
Warning
Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and
regulations, and who are experienced with this type of equipment. Must be avoided the unit installation in places
that could be considered dangerous for all the maintenance operations.
Transport
It is necessary to be sure of the stability of the unit during transportation. Therefore the unit is supplied with a
transversal wooden beam placed on the unit base that must to be removed only after the final destination. In case
the unit has to be moved again, a similar solution is necessary.
Handling and lifting
Care should be taken to avoid rough handling or shock due to the unit drop. Do not push or pull the unit from
anything else than the base. When it is necessary to lift the unit suitable buttonholes are provided in unit base to
arrange spreader bars and cables to prevent damage to the condenser coils or cabinet.
Location
The ALZ units are produced for outside installation on roofs, floors or below ground level on condition that the area
is free from obstacles for the passage of the condensation air. The unit should be positioned on solid foundations
and perfectly level; in the case of installation on roofs or floors, it may be advisable to arrange the use of suitable
weight distribution beams. When the units are installed on the ground, a concrete base at least 250 mm wider and
longer than the unit’s footprint should be laid. Furthermore, this base should be sufficiently robust to withstand the
unit weight mentioned in the technical data table. When the units are positioned in areas which are easily
accessible by persons or animals, it is advisable to fit guards (option) to protect the condenser coil and the
compressors.
Besides to obtain the best performance the location area it is necessary to follow the next precaution and advise:
•
Avoid air flow recirculation.
•
Take care that obstacle do not obstruct air flow.
•
Breezy ambient is required to ensure the right air suction and delivery.
•
To reduce noise and vibration a stiff floor is required.
•
To avoid that condenser coils get dirty avoid dusty ambient.
•
Chiller water must be quite clean and deprived of oil trace and rust particles. It is necessary a water filter on the
entering water pipes.
