Positioning And Assembly - Daikin EWAT_B Series Installation, Maintenance And Operation Manual

Consult the dimensional drawing for the hydraulic and electrical connection of the units.
The overall dimensions of the machine, as well as the weights described in this manual, are purely
indicative.
The contractual dimensional drawing and the related electrical scheme are delivered to the customer
when ordering.
The equipment, ropes, lifting accessories and handling procedures must comply with local regulations and current
regulations.
Use only lifting hooks with locking device. The hooks must be securely fixed before handling.
The lifting ropes, hooks and spacing bars must be strong enough to support the unit safely. Please check the unit weight
on the unit nameplate.
The installer has the responsibility to ensure the selection and correct use of the lifting equipment. However, it is advisable
to use ropes with a minimum vertical capacity equal to the total weight of the machine.
The machine must be lifted with the utmost attention and care following lifting label instructions; lift the unit very slowly,
keeping it perfectly level.

Positioning and assembly

All units are designed for installation outdoors, either on balconies or on the ground, provided that the installation area is
free of obstacles that could reduce air flow to the condensers coil.
The unit must be installed on a robust and perfectly level foundation; should the unit be installed on balconies or roofs, it
might be necessary to use weight distribution beams.
For installation on the ground, a strong concrete base, at least 250 mm thickness and wider than the unit must be provided.
This base must be able to support the weight of the unit.
The unit must be installed above antivibrating mounts (AVM), rubber or spring types. The unit frame must be perfectly
levelled above the AVM.
Installation such as in the figure 3 must always be avoided. In case the AVM are not adjustable (spring type are normally
not adjustable) the flatness of the unit frame must be guaranteed by using metal plate spacers.
Before unit commissioning, the flatness must be verified by using a laser levelling device or other similar devices. The
flatness shall not be over 5 mm for units within 7 m length and 10 mm for units over 7 m.
If the unit is installed in places that are easily accessible to people and animals, it is advisable to install protection grids for
the condenser and compressor sections.
To ensure best performance on the installation site, the following precautions and instructions must be followed:
 Avoid air flow recirculation;
 Make sure that there are no obstacles to hamper air flow;
 Make sure to provide a strong and solid foundation to reduce noise and vibrations;
 Avoid installation in particularly dusty environments, in order to reduce soiling of condensers coils;
 The water in the system must be particularly clean and all traces of oil and rust must be removed. A mechanical water
filter must be installed on the unit inlet piping;
 avoid the refrigerant discharge from the safety valves at the installation site. If necessary, it is possible to connect them
with exhaust pipes whose cross-section and length must comply with national laws and European directives.
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