HWA1-A & HWA1-H
Chillers and Air/Water heat pumps with axial fans
11
7
INSTALLATION
WARNING: The minimum temperature allowed for storing the unit is 5°C.
WARNING: All the operation described in next chapters MUST BE DONE BY TRAINED PEOPLE ONLY. Before any
operation on the unit, be sure that the electric supply is disconnected.
7.1
GENERALITY
When installing or servicing the unit, it is necessary to strictly follow the rules listed in this manual, to conform to all the
specifications of the labels on the unit, and to take any possible precautions. Not observing the rules reported on this manual can
create dangerous situations.
After receiving the unit, immediately check its integrity. The unit left the factory in perfect condition; any eventual
damage has to be questioned to the carrier and recorded on the Delivery Note before signing it.
The company should be informed, within 8 days, of the extent of the damage. The Customer should prepare a written statement
of any severe damage.
WARNING: The HWA1-A/HWA1-H units are designed for outdoor installation and for places not directly accessible to
unqualified personnel. The place of installation must be entirely far away from fire risk. All the necessary measures
should be adopted in order to prevent the fire risk in the place of installation. The outdoor ambient temperature shall
not exceed 46°C. Above this value, the unit is no longer covered by the directives in force in the area of pressure
equipment.
WARNING: The unit should be installed so that adequate clearance is available for maintenance and repair. The
warranty does not cover costs related to platforms or handling equipment necessary for any maintenance.
All maintenance and testing operations should be carried out only by QUALIFIED PERSONNEL.
Before any operation on the unit, make sure the power supply is disconnected.
WARNING: MOVING PARTS, RISK OF DEATH.
Disconnect the power supply and ensure that the fan is stopped before opening the front panel.
The top part and discharge pipes of the compressor operate at high temperatures. Be sure to let the unit to become
cool before beginning any maintenance work.
Be careful when working near condensing coils.
The aluminum fins are very sharp and can cause serious injuries.
After the maintenance operations, close the panels tightly with the fastening screws.
7.2
LIFTING AND HANDLING
The handling must be performed by qualified personnel, properly equipped with appropriate tools to the weight and the
encumbrance of the unit, in compliance with safety regulations of accident preventing.
During
the unloading and the placement of the
unit, it is highly recommended to avoid any
sudden or violent motion in order to protect
the inner components and the frame. The units
can be lifted by mean of a forklift or, otherwise
by mean of belts, making sure to damage the
lateral panels and the cover of the unit using a
structure of spacers as shown in the drawing.
In this context, it is necessary to hook indirectly
the unit to the basement but on two steel
pipes of adequate dimension that to pass into
the appropriate holes situated in the same
basement of the unit. It is important to keep
the unit horizontal during these operations.
1) Handling with forklift
under the pallet.
2) Handling with forklift under
the unit using the appropriate
windows of passing forks.
3) Handling by
mean of belts
7.3
LOCATION AND MINIMUM TECHNICAL CLEARANCES
The
HWA1-A
and
HWA1-H
models are all designed for outdoor installations; any covering over the unit or locating near trees
(even if they partially cover the unit) should be avoided in order to allow the air recirculation. It is advisable to realize a supporting
basement, with adequate size similar to unit foot-print. The unit vibration level is very low: it is advisable however, to fit a rigid
rubber band between basement and unit base-frame. It is also possible to install anti-vibration supports (springs or rubbers) to
keep vibrations at a very low level. An absolute care has to be taken to ensure adequate air volume to the condenser. The re-
circulation of discharge air has to be avoided; failure to observe this point will result in poor performance or activation of safety
controls. For these reasons it is necessary to observe the following clearances:
