www.reznor.eu
PREEVA packaged heat pump air handling unit
• COP 4,2
• EER 4
• R410A
• free cooling
• no emissions
• customizable design
• short delivery times
• plug & play
PREEVA + PUHY
air handling UNITS with heat pump FOR HEATING, VENTILATION AND COOLING
Introduction
Features and benefits
In times of progressively stricter emissions
and energy norms, where the impact on
available resources must be minimized, the
desire for comfort yet remains.
•
Heat pump for both heating and
cooling
•
Inverter compressors and electronic
expansion valve: high efficiency
Despite the fact that in our European climate
there are generally more heating days than
there are cooling days, more end users
require cooling in addition to heating.
To meet these needs for maximum year
round comfort against a minimal use of
energy, Reznor and Mitsubishi Electric have
co-developed a new concept.
The PREEVA + PUHY has been designed
as a standalone installation combining the
proven versatility of an air handling unit with
the highest efficiencies of a heat pump,
without an additional heating energy source.
This installation provides:
•
•
•
•
Since no combustion takes place, no
emissions are produced and no flue
system is required
R410A as a non-ozone depleting
refrigerant
Reduced vibrations and silent
operation
•
Maximum installation flexibility
•
Plug & play:
pre-programmed control, installation
fully tested before dispatch
•
cooling and heating by heat pump
•
free cooling and free heating by fresh
air
•
ventilation
•
•
Excellent COP and EER, for a lower
energy consumption than comparable
units
Support in dimensioning and
calculations
Short delivery times
Quality and Standards
•
CE
•
ISO 9001
Model Range
PREEVA + PUHY units are available
standard as weatherproof outdoor models
(RD), suitable for rooftop or low level
installation, or optionally as indoor models
(SD).
The PREEVA + PUHY range has 4 models
with heating outputs between 25 and 63 kW,
and cooling outputs between 22 and 56 kW.
Options
•
Panel filters and bag filters, class G4 to
F7
•
Duct flange bottom, rear, top or side
•
Heat recovery section in which fresh
air is pre-heated by exhaust air
•
In case additional heating capacity is
required, it remains possible to choose
an additional gas fired heating section.
For the gas fired heating specifications,
please see the separate PREEVA bro-
Controls
Mitsubishi Electric and Reznor offer user
friendly controls that facilitate and optimize
start-up and operation.
•
Factories
•
commercial premises
•
warehouses
chure.
Installation
•
halls
•
sports & leisure
•
restaurants
Depending on available space and on
building regulations, the units may have to
be installed outdoors at a distance from one
another, or the PREEVA may have to be
installed indoors. These configurations are
also possible. The PUHY can be placed at a
distance equalling refrigerant piping length
of up to 1000 m, with a height difference of
up to 50 m.
Delivered pre-programmed
•
Day- and week settings
•
Overtime mode
•
Protection against undesired
modification
•
Large, backlit display
•
Multi-language menus
•
Compatible with various network
protocols
•
Easy to use menus
Mitsubishi Electric PAR-31MAA
For your convenience, Reznor has developed a base frame accomodating both the
PREEVA and the PUHY on a rooftop or at
ground level.
Applications
•
The PREEVA + PUHY is controlled by
Mitsubishi Electric's PAR-31MAA.
In case the PREEVA + PUHY has the
optional gas fired heating section, it is
controlled by the Carel pCO5.
Carel pCO5
Technological effiency
PREEVA
The PUHY units are connected to a DX-coil
within the PREEVA.
About Mitsubishi Electric
Mitsubishi Electric is a Japanese industrial
group that is a worldwide leader in
manufacturing and sales of market leading
electric and electronic equipment.
Reznor has selected Mitsubishi Electric's
PUHY range to offer end users a renewable
alternative to gas fired heating and to water
and steam coil heating.
Mitsubishi Electric is active on the HVAC
market with a competitive range of high
efficiency air conditioning products for split
applications, such as the PUHY heat pump,
which is designed to connect to indoor
terminal units, as well as to the DX coil of air
handling units such as the PREEVA.
In addition, the application range of Reznor's
succesful PREEVA range can now be
extended even further, for example where
gas fired heating is not suited, or where an
application with both heating and cooling is
required.
Day 56dB(A)
Night 49dB(A)
Most of the time, a heat pump does not have
to operate at maximum capacity. This is why
the PUHY has an electronic expansion valve
to control the flow of the coolant, while the
variable frequency drive allows the
compressor to operate on partial load. This
saves energy and minimizes the number of
starts and stops, hereby increasing
longevity.
This combination provides a continuous,
linear output that allows a very precise
control of temperature and, consequently,
improved indoor comfort.
PUHY
PAC-AH M
Databus
Schematic representation
PREEVA + PUHY
air handling UNITS with heat pump FOR HEATING, VENTILATION AND COOLING
Optimized silenced operation,
only 49 dB(A) in night mode
Mixing cabinet with filters class
G4 to F7, and aerodynamic
counter-rotating air inlet
dampers for precise control of
the Fresh air/Return air ratio
Blower cabinet with centrifugal
motor driven fan or plug fan for
external static pressures up to
400 Pa
Various duct connections are
available: rear duct spigot, downturn cabinet, (as illustrated) or a
cabinet with spigot at the top or at
the sides
Integrated controls
Insulated section with DX
coil, connected to the PUHY
heat pump
Weatherproof body consisting
of insulated prepaint panels with
integrated access panels for easy
service
Heat exchanger
with dirt repellant
design and
corrosion protection
Inverter controlled scroll compressors
As a standard, Reznor will supply the PREEVA + PUHY
packaged on a single base frame for outdoors installation.
However, to provide the installer and user maximum
installation flexibility, alternative configurations can equally
be specified, with the PUHY placed outdoors and the
PREEVA either indoors, or outdoors at a distance from the
PUHY.
When the PREEVA + PUHY is ordered
as a packaged unit on the single base
frame, it is delivered with all piping
connected and the refrigerant pre-filled
before dispatch, thereby reducing
installation time and costs.
PREEVA + PUHY
air handling UNITS with heat pump FOR HEATING, VENTILATION AND COOLING
A
G
C
H
I
J
K
L
TECHNICAL DATA REZNOR PREEVA + mitsubishi electric PUHY
O
B
PREEVA RD + PUHY
packaged on base frame
F
D
E
PUHY model
M
N
S
P
kW
Cooling output
kW
P200
P250
P400
P500
25,0
31,5
50,0
63,0
28,0
45,0
56,0
4,29
3,90
4,19
EER cooling 1, 2
3,98
3,78
3,43
3,64
m3/h
m3/h
m3/h
1700
3500
3500
2500
5100
5100
3900
8000
5750
5300
10600
9800
dB(A)
56
58
61
61
mm
920
760
1710
920
760
1710
1220
760
1710
1870
760
1710
Weight PUHY
kg
190
200
245
400
Weight PREEVA5
kg
212
246
289
360
Dimensions PUHY
Width
Depth
Height 4
Pa
400
Coolant
dimensions REZNOR PREEVA + mitsubishi electric PUHY
PUHY model
RD73
22,4
Maximum external static pressure
RDH25
RD55
4,28
Sound level PUHY 3
PREEVA RDH + PUHY
on single base frame
RD35
COP heating 1, 2
Airflow
Minimum @ 15oC
Maximum @ 15oC
Maximum @nom. cooling capacity
Q
R
Heat output
RD25
RDH35
RDH55
RDH73 3
P200
P250
P400
P500
A
1910
2164
2210
3153
B
840
1094
840
1268
C
920
920
1220
1870
D
1830
1830
1830
1830
E
853
853
1088
1088
F
120
120
120
120
G1
4325
4325
5165
5165
G2
2036
2036
4278
4278
H
600
600
835
835
I1
1454
1454
1722
1722
I2
835
835
835
835
J
600
600
600
600
K
1020
1020
1192
1192
L
651
651
816
816
M1
3674
3674
4114
4114
N
2010
2264
2310
3388
O
160
160
160
160
P
583
837
583
710
Q
602
702
602
1002
R
451
451
686
686
S
302
302
502
502
1 Dimensions given for a PREEVA + PUHY with centrifugal fan and with the optional gas fired heating section, as illustrated above
2 Dimensions given for a PREEVA + PUHY with centrifugal fan but without the optional gas fired heating section
3 The RDH25-P200, RDH35-P250 and RDH55-P400 can be delivered packaged: together on a single base frame, with all connections made, pre-filled with coolant, programmed controls etc.
The packaged RDH73-P500, however, is too wide for standard transport and its installation must be completed on site.
R410A
Coolant quantity
kg
6,5
8
11,5
16
Coolant liquid connection
Ø
3/8
3/8
1/2
5/8
Coolant gas connection
Ø
3/4
7/8
1 1/8
1 1/8
Maximum piping length
m
1000
Maximum piping height
m
50
Electrical supply
V
380-415V 3N - 50Hz
Power consumption cooling
kW
5,62
7,40
13,11
15,38
Power consumption heating
kW
5,84
7,34
12,82
15,03
Nominal current cooling
A
9,4
12,4
22,1
25,9
Nominal current heating
A
9,8
12,3
21,6
25,3
Fuse rating 6
A
25
32
63
64
1 Conditions: Cooling : indoor temperature 27°CDB/19°CNB , outdoor temperatuur 35°CDB
2 Conditions: Heating: indoor temperature 20°CDB , outdoor temperature 7°CDB/6°CNB
3 Sound levels are measured at 1 m of the PUHY unit and 1 m above the unit
4 height is for PUHY unit only, optional base frame not included
5 weights given for PREEVA with centrifugal fan and with optional gas fired heat exchanger
6 A separate fuse must be used for every module
For further information about the PREEVA and the gas fired heating section, please see the separate PREEVA brochure
PREEVA+PUHY 2014-10 EN
J&M Sabbestraat 130/A000
B-8930 Menen
Belgium
Tel. +32(0) 56 52 95 11
Fax. +32(0) 56 52 95 33
reznor.europe@nordyne.com
www.reznor.eu
Company Standards and Services:
All Reznor products are tested and approved to CE standards. Reznor Europe nv is assessed to ISO 9001 Quality Assurance.
Reznor offers a service to its customers; including budget schemes, on site technical support and a comprehensive after-sales
package. Reznor reserves the right to change specifications without prior notice.