Presentation - Proper Use (Fig. 1 - Fig. 2); Standard Accessories; Technical Datapag. 6 - 8 - Arneg MPM 2 Manuel D'installation Et De Service

MPM2 - Medium Power Multisystem
English
- PED Directive for pressurized devices 97/23/EC as modified:
applied EN norms: EN 378 -1 :2008-07; EN 378-2:2009
It is possible to request a copy of the product declaration of conformance by filling out the form
found at the website:

5. Presentation - Proper use (Fig. 1 - Fig. 2)

MPM2 units are modular refrigeration units, consisting of 3 - 8 hermetic or semi-hermetic compressors of
various strengths, connected to each other and assembled on a frame. The unit can be supplied with all the
elements necessary for proper performance, including: power and control panel, pressure transducers,
pressure switches, and safety devices.
The unit is available in various versions. See Fig. 1 - Fig. 2.
The combination of various compressor models with various types of functions and gas, has allowed us to
create a vast array of models that are able to satisfy most needs in terms of available power and operating
temperature.

6. Standard accessories

- Oil balance
- Oil separator (only for semi-hermetic compressors)
- Liquid container, provided with safety valve and dehydrating filter with replaceable cartridge, installed under
the compressor assembly
- Resistance casing (only for semi-hermetic compressors)
- Oil differential pressure switches (only for compressors with oil pump)
- Power and control panel, using electronic unit
- Safety pressure switches
- High and low pressure transducers
- Emergency control for compressors, using pressure switches
- Polyester oil
Standard units can be ordered in the versions "OPEN," "CLOSE," and sound-proofed.

7. Technical Datapag. 6 - 8

Data is calculated for R404A, condensation temperature +40°C, evaporation temperature -10°C (TN) and -
35°C (BT), overheating 10K. In the case of closed and soundproofed units, sound pressure is decreased by
6 dB(A). In the case that it is necessary to further reduce noise emissions, we recommend:
- covering the walls of the room in which the machine will be installed with sound-absorbing and insulating
material
- installing sound traps in the ventilation grills
With SCROLL compressors it is possible to further reduce sound pressure by 10 dB(A), by requesting
"SOUND SHELL" soundproofing casing as an option.
Project data
- Maximum Allowable Pressure:
- Maximum Allowable Operating Pressure:
- Maximum Allowable Temperature (delivery line):
- Minimum Allowable Temperature (suction line):
- Coolant types (Group 2 Art. 9 97/23 EC Par. 2.2):
26
http://
www.arneg.it/conformity
Ps =28 bar
Pset =25.2 bar
Ts max =+ 100°C
Ts min =- 42°C
R404A - R507A - R134a
05060107 00 03/02/2010