D
–EIMAC01502–18_03EN - 11/25
5.1.1
Safety devices
In accordance with the Pressure Equipment Directive the following protection devices are used:
-
High pressure switch
→
safety accessory.
-
External relief valve (refrigerant side)
→
over pressure protection.
-
External relief valve (heat transfer fluid side)
→
The selection of these relief valves must be made by the
personnel responsible for completing the hydraulic circuit(s).
All factory-installed relief valves are lead-sealed to prevent any calibration change.
If the relief valves are installed on a changeover valve, this is equipped with a relief valve on both outlets. Only one
of the two relief valves is operating, the other one is isolated. Never leave the changeover valve in the intermediate
position.
If a relief valve is removed for checking or replacement please ensure that there is always an active relief valve on
each of the changeover valves installed in the unit.
5.2 Noise
The unit is a source of noise mainly due to rotation of compressors and fans.
The noise level for each model size is listed in sales documentation.
If the unit is correctly installed, operated and manteined the noise emission level do not require any special protection
device to operate continuosly close to the unit without any risk.
In case of installation with special noise requirements it could be necessary to install additional sound attenuation devices.
5.3 Moving and lifting
Avoid bumping and/or jolting during loading/unloading unit from the truck and moving it. Do not push or pull the unit from
any part other than the base frame. Secure the unit inside the truck to prevent it from moving and causing damages. Do
not allow any part of the unit to fall during transportation or loading/unloading.
All units of the series are supplied with lifting points marked in yellow. Only these points may be used for lifting the unit, as
shown in the following figure.
Use spacing bars to prevent damage to the condensation bank. Position these above the fan grills at a distance of at least
2.5 metres
.
Both the lifting ropes and the spacing bars must be strong enough to support the unit safely.
Please check the unit’s weight on the unit nameplate.
The unit must be lifted with the utmost attention and care following lifting label instructions; lift
unit very slowly, keeping it perfectly level.
5.4 Positioning and assembly
All units are designed for installation outdoors, either on balconies or on the ground, provided that the installation area i s
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.
Figure 3
– Lifting
Unit with 4 lifting points
(The drawing shows only the 6 fans version. For the 4 fans version the lifting mode is the same)
