Emicon RTP 572 K [3/16] Roof top r407c
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Emicon RTP 572 K [3/16] Roof top r407c

Emicon RTR 572 K [3/16] Roof top r407c
6
ROOFTOPR407C
PACKAGED AIR TO AIR ROOFTOP UNITS
WITH SCROLL COMPRESSORS
rtr-rtp-GB•rel.1.3
Main components:
Structure made of a base-frame in carbon steel proles, protected against corro-
sion by an epoxy powder primer, kiln-polymerized, painted with polyester pow-
der.
The structural frame is made in aluminium proles and complete with aluminium
panels; the internal sheet plates, between the dierent sections, are made of gal-
vanized steel plate. The external panels of the sections, crossed by the treated air,
are of sandwich type with the internal surface in galvanized steel plate, insulated
by a high-density foam polyurethane sheet. The parts of the base-frame and the
internal steel plates licked by the treated air are thermally insulated with close-
cell insulating material.
The external panels can be easily dismantled, so to allow the access to all the
in-built components. The customer can access to the main components of the
cooling circuits, to the air lters and to the electrical board through hinged doors
and ¼ turn closures, so to make the maintenance operations easier.
High-eciency scroll compressor (COP 3.37 under ARI conditions), with low
sound level, internal heat protection, installed on rubber vibration dampers, sup-
plied with crankcase heater when necessary.
Being 2 circuit units, in case of problem on one of the circuit, the 50% operation
of the unit is anyway granted.
Air treatment coils made in copper pipes suitable for refrigerating liquids and
high eciency aluminium ns. There is a stainless steel drip pan for condensing
coil.
External exchange coils made in copper pipes special for refrigerating liquids
and high eciency aluminium ns.
Filtering section made of washable pleated lters in polyester with G4 metal
frame (in conformity with EN779:2002 standard); the ltering cells are easily re-
movable, through a hinged opening door, for the periodical cleaning and re-
placement operation.
Air discharge fan section with double-suction forward centrifugal fans, stati-
cally and dynamically balanced, installed on rubber-type vibration dampers. The
fans are driven, through belt and pulley transmissions, by 4-pole tri-phase electri-
cal motors on slides; the motor pulley is of variable diameter type. It is also pro-
vided with a device switching o the unit in case of accidental stop of the fan.
Fans for condensing coils of axial type with high aerodynamic eciency blades
directly joined to electrical motors suitable for fans speed regulation. The motor
are provided with in-built thermal protection. External protection grid to prevent
accidents.
The units are realized with two cooling circuits to increase their reliability and
to adjust the cooling capacity to the real requirements, keeping a high energy
eciency. Each circuit is made by a thermostatic expansion valve with external
equalizer, liquid sight glass, safety valve, high and low pressure switches, high and
low pressure gauges; in case of heat pump version, besides the above compo-
nents, there are also a liquid receiver with shut-o valve, an additional thermo-
static valve for winter operation, the 4-way valve for the cycle inversion and check
valves on the liquid line.
Electrical board compliant to CE standard, complete with lock-door main
switch, fuses for compressors, remote control switches, protection switches for
the centrifugal fans motor, low tension auxiliary circuit and terminal board.
All units are provided with electronic microprocessor so to automatically man-
age all the functions of control, status alarm and diagnostics.
The units are supplied complete with R407C refrigerant charge and non-freezing
oil.
Before delivery, all units are factory tested.
The units are made in conformity with the European standards in force (73/23/
CE – Low tension Directive, 89/336/CE – Electromagnetic compatibility Directive,
97/23/CE – PED Directive and 8/37/CE – Machine Directive).
Accessories
1M-2M Centrifugal fans with higher available pressure: in case of
ducts with high pressure drops, it is necessary to increase the avail-
able pressure to the inlet and outlet centrifugal fans, increasing
the power of the electrical motor and consequently adjusting the
transmission.
AF Clogged lters alarm: dierential pressure switch detecting an
excessive pressure drop on the air lters due to their dirtiness; the
control system of the unit displays the problem, without anyway
switching o the unit.
AFL Smoke alarm: in case of smoke, detected by an optical sensor, the
unit is switched o and the eventual motorized dampers will be
suitably positioned.
BC Hot water heating coil: coil with copper pipes, aluminium ns
and copper manifolds, used for the winter heating, The coil is fed
by external hot water through a suitable 3-way mixing valve, con-
trolled by the microprocessor.
BC1 Water post-heating coil: coil with copper pipes, aluminium ns
and copper manifolds, placed afterwards the evaporating coil; this
coil is used to keep the air temperature within the requested value,
when the evaporator is used to lower the value of the ambient rela-
tive humidity. The coil is fed by external hot water through a suit-
able 3-way mixing valve, controlled by the microprocessor.
BG Hot gas post-heating coil: coil with copper pipes, aluminium ns
and copper manifolds; this coil is used to re-adjust the air tempera-
ture to the requested value, when the evaporator is used to lower
the value of the ambient relative humidity. The coil is supplied by
the hot gas coming out from the compressor, through a solenoid
valve controlled by the microprocessor, therefore there is no need
for external heating sources.
BT Condensing pressure control: device for the regulation of the
condensing pressure, through the control of the fans speed rota-
tion. In case of cooling operation, this equipment for continuous
voltage control reduces the external fans speed rotation when the
condensing pressure decreases, so to allow suitable working condi-
tions, also at low external air temperatures.
F Free cooling operation: on the base of the comparison between
the internal and the external temperature, the microprocessor
controls the motorized dampers, so to use, in the best way, the
energy in the external air to satisfy the heating loads. In this way,
the working time of the compressors and of the external fans is
remarkably reduced and, as a consequence, also the electrical con-
sumption. On demand, it is possible an enthalpy control of free-
cooling, so to use the external air for controlling the internal relative
humidity, when possible. In case the unit is also equipped with heat
recovery, the standard version will be provided with 3 dampers. On
demand, it is possible to supply a 5 damper version (to be selected
on purpose).
F5 F5 Pleated lters: glass bre washable pleated lters with F5 met-
al frame (in conformity with EN779:2002). The lters are placed at
the inlet of the air treatment coil, instead of the standard G4 lters.
On request, so not to have high pressure drops, it is possible to have
G4 or F5 ltering cells with a thickness of 98 mm, instead of 48 mm
as per standard units.
FT High-eciency bag lters: Rigid bag lters with ltering ecien-
cy F7 (in conformity with EN779:2002), complete with G4 pre-lters
(in conformity with EN779:2002). The lters are placed at the inlet of
the air treatment coil, so to assure a high ltering eciency, without
too high pressure drops. The length of the unit will increase of 500
mm. .
GP Condensing coil protection grid: metal protection grid against
accidental impacts.
H Humidier: steam production equipment of immersed electrode
type, installed inside the unit and controlled by the microproces-
sor on a ON/OFF basis, so to keep, when necessary, the value of
the treated air relative humidity within the pre-set limits. The steam
produced by this equipment is distributed in the air through a suit-
able diuser.
IH RS 485 serial interface: electronic card allowing the connection
of the unit to a supervision system, so to completely control it from
a remote working station. On demand, it is possible to connect the
unit to supervision systems with dierent communication proto-
cols.

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