Unit installation

Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09

Picture 31 – Distances in case of coverings

Before starting to handle the unit to position it, it is necessary to identify the best way to arrive to the place,

taking into consideration the unit overall dimensions and weight, the available lifting equipment and any

optional accessory dimensions. All units described in this manual do not need any special foundation, since

they can be simply laid down on the chosen surface

, just placing rubber gaskets or spring-type vibration dampers

(options) underneath. Make sure that the unit features indicated in the attached technical data sheets match those

required for the undertaken project.

4.5 Hydraulic connections

The units are designed to be connected to a distribution system of cooled and/or heated water depending on the

type of unit, if it is a water chiller or a heat pump. Only expert refrigeration technicians are allowed to perform the

hydraulic connections and in conformity with local regulations. The following general instructions must be

followed:

Ø Perform the piping path in such a way so as to limit as much as possible the pressure drop in the system.

The water circulating pump must be able to deliver the appropriate water flow capacity with the

necessary available pressure to overcome the system pressure drop in any operating conditions.

Pipes must be adequately supported by brackets and arranged so as to allow an easy installation

and inspection.

Ø The materials used for the realisation of the system must have a nominal pressure not lower than PN6.

Ø During the piping insallation, all necessary measures to prevent dirt and solid particles from entering the

tubes must be taken.

Once the pipes are placed and the unit installed, the system must be leak tested to detect any

possible leak to be repaired before the starting up of the system.

Do not exceed 6 bar during the leak test!