2
7425MUM651
Model: QBS
- Use and Maintenance Manual
Rev. 02
This chiller has been carefully designed and constructed to be environmentally
friendly:
•
Refrigerants without CFC;
•
Expanded foam insulation without CFC;
•
Energy-saving techniques;
•
Reduced noise;
•
The chiller and its packing materials are recyclable.
In order not to hinder our efforts, the user is required to obey the simple ecological
warnings indicated by this symbol.
(1)
These are persons with the experience, technical preparation and knowledge of standards and
regulations who are qualified to perform the necessary actions and able to recognize and avoid
possible dangers while handling, installing, using and maintaining the machine.
1.2 W
ARNINGS
Only qualified persons may use and maintain electrically-powered equipment.
Before commencing maintenance operations ensure no parts of the machine are
live and it cannot be re-connected to the electrical power supply.
The QBS chillers contain R134A refrigerant.
Operations on the cooling circuit must only be performed by specialist personnel with
suitable equipment.
Any modifications to the machine or related operating parameters not previously
verified and authorized by the Manufacturer may be hazardous and will invalidate
the guarantee.
Do not use water to extinguish fires near or on the chiller.
1.3
P
ROPER USE OF THE CHILLER
QBS units are packaged air-cooled water chillers.
They are intended for use in industrial process or air-conditioning systems requiring chilled water.
Any other use is considered as incorrect.
The manufacturer is not liable for damage resulting from inappropriate use; in all cases, the user is
liable for any resulting hazards.
Proper use requires conforming to the installation conditions and limits of operation (see
sections 3.5 and 7). In particular:
•
Power voltage and frequency;
•
Pressure, temperature of incoming water;
•
Water flow rate;
•
Surrounding temperature.
The chiller has been tested and completely assembled. The user must only make the connections to
other systems, as described in the chapters that follow.
