AERMEC NRP 0280 User Manual

6 Aermec cod. 5806715_00 12.01
NRP 0200-0750
EN
Standards complied with
WHEN DESIGNING and
CONSTRUCTING the unit:
SAFETY
1. Machinery directive
2006/42/EC
2. Low voltage directive
LVD 2006/95/EC
3. Electromagnetic compatibility
directive EMC 2004/108/EC
4. Directive regarding pressurised
devices PED 97/23/EC, EN 378,
5. UNI12735, UNI14276
ELECTRIC PART
1. IEC EN 60335240,
2. IEC EN 6100061/2/3/4
ACOUSTIC PART
1. ISO DIS 9614/2
intensimetric method
PROTECTION RATING
IP24
REFRIGERANT GAS
This unit contains fluoride gases with
greenhouse effect covered by the Kyoto
Protocol. Maintenance and disposal
must only be performed by qualified
staff, in compliance with standards in
force.
1. DESCRIPTION OF THE UNIT
Multipurpose OUTDOOR units for 2 or 4 pipe systems,
especially designed for simultaneous production of
cold and hot water and fully independent.
AVAILABLE VERSIONS
1.1. FOR 2PIPE SYSTEMS
The multipurpose 2-pipe units have been made
for applications with 2 pipe terminals, e.g. hotels,
where there is a cold/hot water and DHW demand
throughout the year.
The operating modes are:
SUMMER FUNCTIONING
1. Cold water production to system.
2. Production of domestic hot water with use of
total recovery (NO ANTI-LEGIONELLA CYCLE).
WINTER FUNCTIONING
3. Heat pump supplying the system.
4. Service heat pump of DHW.
1.2. FOR 4PIPE SYSTEMS
The multipurpose 4-pipe units have been made for
applications with 4 pipe terminals, e.g. shopping
centres, offices or facilities with large windows where
there can be the simultaneous demand for hot and
cold water with a system which does not require
season changeover and therefore is a valid alternative
to traditional systems based on the chiller-boiler
combination.
The microprocessor control logic ensures perfectly
satisfying heat and cooling loads.
The operating modes are:
PRODUCTION OF COOLED WATER ONLY
The multipurpose unit acts as a classical refrigerator:
cool water to the system and condensation heat
disposal outside through finned coils.
PRODUCTION OF HOT WATER ONLY
The multipurpose unit acts as a heat pump, exploiting
the heat of the outside air, through the finned coil
(evaporator) it raises the temperature of the water to
be sent to the system through a plate heat exchanger
(condenser). The main difference from traditional
cycle reverse heat pumps is that the heated water is
produced in different heat exchanger from the one
used to produce cold water. This separates the two
hot-cold sections required for 4-pipe systems.
COMBINED PRODUCTION
If the utility requires simultaneous hot and cold
water, the unit acts as a water heat pump, controlling
condensation and evaporation on two distinct plate
heat exchangers associated to circulation of cold and
hot water in the system.
It automatically changes from one configuration to
another (managed by on-board microprocessor) to
optimise the spent energy depending on the demand
by the utility.
Maximum reliability
Multi-circuit unit designed to provide the maximum
efficiency both with full load and partial loads,
guaranteeing operating continuity should one of the
circuits stop to facilitate maintenance.
Having several compressors and circuits ensures
control of more steps of power yielded in both modes.
Built-in hydronic kit
Encloses the main hydraulic components; available in
several configurations with high or low static pressure
single pump or reserve pump (see configurator).
TECHNICAL SECTIONINSTALLATION SECTIONUSER SECTION

AERMEC NRP 0280 Specifications

General

Brand	AERMEC
Model	NRP 0280
Category	Heat Pump
Language	English