Sabiana Energy Plus User manual

HEAT RECOVERY UNITS Energy Plus
INSTALLATION, USE
AND MAINTENANCE MANUAL
AND T-EP WALL CONTROL
D 01/18
F 01/18
Cod. 4051012UK
Via Piave, 53 • 20011 Corbetta (MI) • ITALY
Tel. [phone] ric. autom. • Fax [phone]
E-mail: [email protected] • Internet: www.sabiana.it

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2
INDEX
Fundamental safety rules page 3
Safety standards and “CE” logo page 5
General information page 6
Provisions for the maintenance page 6
Other risks page 6
Warning and danger labels page 6
Identication labels page 7
General warnings page 7
Use and preservation of the manual page 8
Operating limits page 8
Waste disposal page 8
Receipt of the unit, handling and start page 9
Characteristic technical data page 10
Overall dimensions of the packaged unit page 10
Dimension and weight page 11
Layout of the unit page 12
Ceiling installation page 12
Floor installation page 13
Air Duct Connections page 13
Inverting the air ows page 13
Inverting the air ows of ceiling units page 14
Inverting the air ows of oor units page 15
ENY-P1 airow performance page 16
ENY-P2 airow performance page 17
ENY-P3 airow performance page 18
ENY-P4 airow performance page 19
Thermal performance page 20
Main operating logic page 21
Electrical panel page 22
BEP electric antifreeze coil page 29
BER electric post-heating coil page 32
Water coil page 35
Auxiliary sections page 37
CO2sensor page 41
Condensate drain siphon page 41
Maintenance page 43
Troubleshooting page 44
T-EP wall control page 45
Declaration of conformity page 64

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Installation work, electrical work and
repairs must be carried out by quali-
ed skilled personnel who have ade-
quate training and experience and are
familiar with:
• safety and health rules and regula-
tions;
• rules and regulations applicable to
the prevention of accidents;
• applicable codes and standards.
Such skilled workers must be able to
understand their work and to identify
and avoid potential risks.
Transportation, handling, commissio-
ning and maintenance may be carried
out by skilled persons or persons who
have been given the necessary trai-
ning and instructions with respect to
their work and the risks implied by
unsafe working.
During installation, maintenance and
repairs, for safety reasons, observe
the following precautions:
• Always use work gloves.
• Do not expose to inammable gas.
• Do not place objects over the grids.
Make sure the unit is earthed.
FUNDAMENTAL SAFETY RULES
Carefully read the following user information manual
before starting up the machine.
Warning!
Particularly important and/or delicate operations.
Operations which may be carried out by the user.
Interventions to be carried out exclusively
by an installer or authorized technician.

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FOR THE INSTALLATION:
Do not install in explosive, corrosive or damp
environments, outdoors or in very dusty rooms.
Install a safety switch to turn off current to the
appliance in an easily accessible position near
the unit or units.
The space above the suspended cei-
ling must be dry and adequately protected
against moisture and the ingress of humi-
dity.
During installation, for safety reasons, observe
the following precautions:
• The unit must always be handled by two
people.
• Lift it slowly, taking care not to drop it.
• Lifting tackle and gear must have sufcient
capacity.
• Defective lifting gear and tackle must not be
used.
• Ropes, belts and similar lifting tackle must
not be knotted or come into contact with
sharp edges.
• Fork-lift trucks, elevating-platform trucks
and cranes must have sufcient capacity.
• Loads must not be lifted over persons.
• Do not operate the fans until they have been
connected to the air pipes.
• In case of use of accessory hydronic coils,
make sure that the hot uid is always in cir-
culation in order to avoid freezing problems.
FOR THE USE:
Some safety fundamental rules must be obser-
ved while using products with electrical energy
or water:
- this appliance can be used by children aged
from 8 years and above and persons with redu-
ced physical, sensory or mental capabilities or
lack of experience and knowledge if they have
been given supervision or instruction concerning
use of the appliance in a safe way and under-
stand the hazards involved;
- this appliance is intended to be used by expert
or trained users in shops, in light industry and
on farms, or for commercial use by lay persons;
- it is dangerous to touch the unit with damp
parts of the body and bare feet;
- never introduce objects or the hand into the
fans;
- do not remove the safety labels inside the
appliance. If you cannot read the labels, ask for
replacements;
- always use original spare parts;
- never tamper or modify regulation and safety
devices without prior authorisation and instruc-
tions;
- never twist, detach or pull power cables, even
when the unit is unplugged from the mains
power supply;
- neither throw nor spray water on the unit;
- never introduce foreign objects through the air
intake and discharge grids;
- never remove protective elements without
rst unplugging the unit from the mains power
supply.
Be sure that:
- the operating pressure and the operating tem-
perature of possible hydronic circuits must never
exceed the rated pressure and temperature (see
"Operating limits");
- air intakes and air discharge openings must
never be obstructed or blocked.
In particularly cold climates, if the appliance
is not to be used for long periods, drain the
hydraulic circuit.
Children shall not play with the appliance.

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FOR MAINTENANCE:
Before carrying out any operation on the appli-
ance, make sure:
1 - The unit is disconnected from the electrical
power supply.
2 - The coil water supply valve is closed and
the coil has cooled down.
3 - Make sure that the fan has stopped.
Flow and return valves and any isolating valves
must be closed for repair and maintenance.
Never tamper with or modify regulation and
safety devices without prior authorisation and
instructions.
If pipe connections of the heat exchanger are
handled improperly, hot heating uid may be
discharged and may cause scalding.
All panels and covers removed for repair or
maintenance work must be tted back after the
completion of work.
Cleaning and user maintenance shall not be
made by children without supervision.
SAFETY STANDARDS
AND LOGO
In line with our policy of ongoing improvement,
we always aim to provide state-of-the-
art products compliant with current safety
standards. The rules and guidelines in this
document, therefore, reect compliance with
the safety regulations and provisions that apply.
In addition to following the recommendations in
this document, all staff
potentially exposed to risks during the
installation, use or maintenance of our
equipment are strongly recommended to ensure
that it complies with the relevant domestic
safety regulations in force.
The CE marking and Declaration of conformity
provided attest to the compliance of our products
with the applicable Community legislation.
However, SABIANA declines all liability for
personal injury or damage to property caused by
the failure to apply these safety regulations or by
unauthorised modication of the product. When
installation involves other products without CE
marking, the relevant certication rests with
the purchaser, who assumes full responsibility
for the certication of conformity of the entire
system.
The products are manufactured in accordance
with the following guidelines:
• Machinery directive 2006/42/EC
• Low Voltage Directive 2014/35/EU
• Electromagnetic compatibility
• directive 2014/30/EU
• RoHS Directive 2011/65/EC
• Energy Related Products (ERP)
• Directive 2009/125/EC

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GENERAL INFORMATION
Please do not remove the safety devices.
However, if you need to remove a device (for
good reason), you should take immediate
measures to prevent possible hazards.
In addition, it is strongly recommended
that you reinstall the protective
device removed as soon as possible.
All (ordinary and extraordinary) maintenance
procedures must always be performed with the
product isolated from the power supply.
To minimise the risk of accidental starting of a fan/
motor during maintenance, it is recommended
that you place a suitable warning sign on the
control panels/control boards, e.g. “Attention:
Verify that the power supply is disconnected
before performing any maintenance”.
Also, before you connect a power cable to a
terminal block, check that the line voltage
corresponds to that indicated on the product
label. If the product labels become
illegible over time, please replace them.
WARNING!
All the internal wiring is located under the top
panel of the unit. For this reason, it is not
permitted to drill holes in the Panel.
To do so would involve a risk of electric shock
and damage to the unit. This also applies to
the control panel and the area of the controls.
PROVISIONS
FOR MAINTENANCE
The maintenance staff must observe all the
accident prevention (safety) regulations in force.
The following recommendations must be observed
in particular:
–wear protective clothing and appropriate
protective equipment to minimise the risk of
accidents;
–make sure that a safety interlock has been
activated to prevent unauthorised running of
the machine.
OTHER RISKS
Product-related risks were assessed as per the
machinery directive 2006/42/EC. The manual
associated with the directive contains information
and advice for all the staff on how to minimise
the risk of personal injury and damage to property.
WARNING LABELS
There are various symbols or warning
labels on the machine which must not
be removed.
DANGER LABELS
These draw attention to the presence
of live parts inside the casing on which
the label is applied.

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IDENTIFICATION LABELS
Serial number plate: gives details of the product
and the manufacturer's address.
NOTE: other safety labels can be added to the
product according to the analysis of additional
risks / other risks.
GENERAL WARNINGS
What follows is extremely important with regard
to: Handling, storage, installation, maintenance,
operation, servicing of the electrical equipment,
servicing of the refrigeration system:
• All the staff must be trained or instructed
adequately.
• The responsibilities of the staff must be clearly
dened.
• All work on the electrical equipment must be
carried out by, or under the supervision of
qualied electricians.
• All plumbing work must be performed by
qualied installers or by staff trained for this
purpose.
Assembly, disassembly, installation, work on the
electrical system, commissioning and maintenance
of the heat exchanger for installation in a false
ceiling must be in accordance with the laws,
rules, regulations, codes and health and safety
standards in force, and combined with the latest
technology. The wiring diagrams in this manual
do not consider grounding or other electrical
protection required by local rules, regulations,
codes and standards or by the local electricity
supplier.
Scope and Qualications
This User Information Manual addresses the
following:
• Transportation, handling and storage
• Installation
• Electrical work
• Commissioning and maintenance
• Disposal
All repairs or maintenance must be performed by
qualied specialists. The manufacturer declines all
responsibility for damage caused by modications
or tampering with the unit.
This bookleT is an inTegral parT
of The appliance
and musT always accompany The uniT.

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USE AND PRESERVATION
OF THE MANUAL
This booklet is an integral part of the
appliance and must always accompany the
unit.
- This instruction manual is intended for the
machine’s user, the owner and installation
technician and must always be available to be
consulted, if necessary.
- The instruction manual must always be
available for consultation and be preserved in
a protected and dry place.
- The instruction manual aims to describe how
to use the machine the way the machine is
designed to be used, the machine’s technical
features and to provide information on how to
use the machine correctly, and how to the clean,
control and operate the machine; in addition, the
manual provides important information about
maintenance, any residual risks and however
how to carry out operations to be performed
with special care.
- This manual is to be considered a part of
the machine and must be PRESERVED FOR
FUTURE REFERENCE until the machine is nally
dismantled.
- The user can request a new manual from the
manufacturer or from the local retailer if the
manual is lost or damaged. The request must
include details of the machine model and the
serial number indicated on the identifying data
plate.
- This manual reects the technical features
at the date of preparation; the manufacturer
reserves the right to upgrade the production
and the subsequent manuals without being
under an obligation to also update previous
versions.
- The manufacturer accepts no liability in the
following cases:
• improper or incorrect use of the unit;
• use that does not comply with the information
expressly specied in this publication;
• serious shortcomings in the foreseen and
recommended maintenance operations;
• changes made to the machine or any
unauthorised operation;
• using non-genuine spare parts or parts not
specic to the model;
• total or even partial non-compliance with the
• instructions;
• exceptional events.
OPERATING LIMITS
Recuperatore e Batterie Idroniche:
• Maximum temperature of heat vector uid:
max. 85°C
• Minimum temperature of refrigerant uid:
min. 6°C
• Maximum working pressure: 1000 kPa (10
bars)
• Power supply voltage: 230V - 50Hz
• Electric energy consumption: see technical
data label
• Fan motor operating limit is at -20 / +40°C
of entering air temperature
WASTE DISPOSAL
The device contains recyclable materials and
substances. It must not be disposed of with
unsorted waste but separated, recovered and
disposed of at specialised centres depending
on the type of material:
– Sheets of galvanised steel or aluzinc: sandwich
panels, fans, bulkheads, condensate drip trays,
nozzles.
– Aluminium or aluminium alloy: heat xchanger,
ns of the coil, bypass damper, motor parts.
– Copper: motor windings, coil.
– Polyurethane foam: insulation in the sandwich
panels.
– Polyethylene: insulation in the separation
panels.
– Electrical and electronic equipment: control
board and circuit boards.
Do not throw packaging material away or leave
it with in reach of children as it may represent
a hazard.
Consumables and replaced parts should be
disposed of safely and in accordance with the
environmental protection legislation.

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RECEIPT OF THE UNIT,
HANDLING AND START
RECEIPT OF THE UNIT
Each product is carefully inspected before shipment.
Upon receipt of the goods, it is recommended
that you check these for any signs of damage
caused during transport. If there is any damage,
report it to the carrier, who is held responsible for
damage during transport. Typically, the product
is packed for transport on pallets. A protective
lm is usually also applied to minimise water
inltration.
HANDLING AND UNLOADING
Before unloading the products, ensure that the
handling/lifting device is suited to the weight
and size of the same. For products transported
on pallets, it is recommended to use a forklift
truck.
Lift the unit and put it in place with spacers,
making sure the equipment is suited to the weight
of the unit.
STARTING THE UNIT
Before giving to the product the power supply,
check the following:
• Verify that the input/output connections of the
product are not obstructed.
• Check that all the components of the product
are securely attached to their seals.
• Manually turn the impellers of each fan to
ensure that they do not rub and do not stick
against the inside structures.
• Verify that all the inspection or access doors
are closed.
ATTENTION!
If the fan inlets or outlets are not connected to a
ducted system, ensure that appropriate protections
are installed before starting the unit. Check that
the electrical connections have been made correctly,
especially the grounding.
IMPORTANT!
The electrical connections must be made by
qualied staff.
DISASSEMBLY AND REASSEMBLY
Before disassembly or reassembly, ensure the
product is isolated from the power supply to
prevent operation of the fans. Disassembly and
reassembly must be carried out by qualied staff
as they do not fall under routine maintenance.

Energy Plus
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2600
0,72
250
690
85
14,8
94
24,5
2
1460
6,5
IP20
320
230 - 1 + N / 50Hz
720
0,20
170
270
80
3,9
90
6,5
2
330
2,8
IP20
90
230 - 1 + N / 50Hz
1150
0,32
220
300
80
6,2
90
10,5
2
770
3,4
IP20
140
230 - 1 + N / 50Hz
1700
0,47
250
600
80
9,1
90
15,4
2
1060
4,7
IP20
170
230 - 1 + N / 50Hz
m3/h
m3/s
Pa
m3/h
%
kW
%
kW
–
W
A
V-Ph
–
kg
Maximum supply and return
air flow rate
Supply and return
rated available static pressure
Minimum supply and return
air flow rate
Thermal efficiency
EU regulation 1253/14 (1)
Total thermal output recovered (1)
Maximum recovery efficiency (2)
Total thermal output recovered (2)
Total number of fans
Rated absorbed
electrical power (3)
Maximum total
absorbed current (3)
Unit power supply (3)
Protection rating
with machine installed
Unit weight
ENY–P4ENY–P3ENY–P2ENY–P1model
1) Air conditions: TAE = 5°C and ti= 25°C, no condensate
2) Air conditions: TAE = -10°C and ti= 20°C, RHi50% RH
3) Basic version without optional electric heaters
469
1845
1030
119
510
1845
1030
165
595
2245
1430
198
735
2345
1880
370
mmD
mmE
mmF
kg
Dimensions
Weight
ENY–P4ENY–P3ENY–P2ENY–P1model
OVERALL DIMENSIONS
OF THE PACKAGED UNIT
CHARACTERISTIC TECHNICAL DATA

Energy Plus
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C
G
I
O O
M305
225
N
H H
A
L
I
F
225
N
B 127
E E
RR
D
C
G
I
O O
M305
225
N
H H
A
L
I
F
225
N
B 127
E E
RR
D
E
150 C
E F
B
127
26225
Q184 184
O O
M305
225N
P156 156
C
I
150
26
81
150
A
D
E
150 C
E F
B
127
26225
Q184 184
O O
M305
225N
P156 156
C
I
150
26
81
150
A
D
S
84
508
670 670
508
S
84
1032
1012
20
60
98
250 250 355
1700
850
344
1750
1150
385
2100
1250
470
2355
1700
610
400
220
410
908
396
170
902
556
93
500
1388
482
26
654
98
295
560
1108
321
190
1202
581
134
500
1438
782
26
678
140
325
600
1328
386
234
1302
758
219
580
1788
882
26
791
170
435
830
670 + 670
508
305
1740
885
359
580
1032 + 1012
1332
20
856
325
mmA
mmB
mmC
ØD
E
F
G
H
I
L
M
N
O
P
Q
R
S
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
kg
Dimension
Weight
ENY–P4ENY–P3ENY–P2ENY–P1model
Ceiling units
Floor units
Ø D
(male fitting with
gasket)
Condensate drain
3/4" male
Condensate drain
3/4" male
Ø D
(male fitting with
gasket)
Hole Ø 10 mm
Hole Ø 12 mm
ENY–P1–S / ENY–P2–S / ENY–P3–S
ENY–P1–P / ENY–P2–P / ENY–P3–P
ENY–P4–S
ENY–P4–P

Energy Plus
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LAYOUT OF THE UNIT CEILING INSTALLATION
SERVICE SIDE VIEW
MAINTENANCE SIDE VIEW
ENY–P4–S
3
2
6
5
7 18
2
4
ENY–P1–S / ENY–P2–S / ENY–P3–S
The ENERGY PLUS heat recovery unit comes with
4 mounting brackets which can be used together
with vertical threaded rods or suspension chains
to facilitate xing to the ceiling and levelling. It is
recommended to install and x the unit in the
correct position before making the connections to
the ducted system or condensate discharge pipe
(discharge side) and the electrical connections.
The ducted system must be secured independently
from the unit. Use the terminal block in the Control
Panel of the unit to make the connections to the
mains power supply.
It is not advisable to hang the ENY P4 units from
the ceiling. If strictly necessary, the unit must
be supported from underneath with structural
elements and vertical rods able to withstand its
weight. When supporting the unit, make sure to
leave sufcient clearance for maintenance and
removal of the lters.
Vertical rod (not supplied)
1. Damper
2. Filters
3. Control board
4. Siphon connection
5. Air fan
6. Air fan
7. Heat recovery unit
8. Collection tray
M10 serrated washer (not supplied)
Mounting bracket (included)
M10 nut (not supplied)
Filter.
(Filter change, see page 40).
UNIT DRAWING
EXHAUSTED
AIR
FRESH AIR
SUPPLY AIR
EXTRACTED AIR
Condensate drain
Fan Heat exchanger Fan
Filters Controls Filters
For maintenance and assistance
minimum space see page 40.

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FLOOR INSTALLATION AIR DUCT CONNECTIONS
INSTALLATION
ON MOUNTING FEET
All the units are supplied with brackets on the
base, which can be removed to install the unit
in a suspended ceiling or in environments with
height restrictions.
The mounting brackets can be removed by
unscrewing the 4 M8 bolts in each corner of the
bracket.
The unit can be levelled
using the four mounting feet (six for sizes 4)
attached to the brackets on the base.
Mounting feet
Turning the bolt in the mounting feet raises or lowers
the corner of the unit. In this way, the unit
can be adjusted to be made horizontal .
Typical Ceiling Installation
Typical Floor Installation
C
A
B
D
A
C
D
B
A= Fresh air
B= Supply air
C= Exhausted air
D= Extracted air
LEGENDA:
INVERTING
THE AIR FLOWS
Where necessary, it is possible to invert the air
ows in the pipeline at the conguration Dip
switch 1 on the electronic power board. This
causes the intake fan to act as an extraction fan
and the board inverts the functions of the probes,
so the air intake probe will be detected and
considered as the extraction air probe.

Energy Plus
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C
A
B
D
C
B
A
D
This operation is simple and involves the removal
of the three lower panels and disassembly of the
condensate tray for reassembly on the opposite
side of the heat exchanger, turning it through
180°.
The central panel has a pre-punched hole which
is to be opened for the condensate drain tting.
When not in use, the hole must be carefully
sealed with closed-cell insulation.
The location of the lters F7 and M6 must, there-
fore, be inverted (the views below show the
machine overturned).
INVERTING
THE AIR FLOWS
OF CEILING UNITS
In the case of ceiling units, the condensate tray
needs to be moved in order to invert the ows.
Typical Ceiling Installation
Inverted Air Flows of Ceiling Installation
TYPICAL OPERATION
DIP 1 position
DIP 1 = OFF
DIP 1 = ON
INVERTING THE AIR FLOW OPERATION
FOR INVERTING THE FLOW:
INVERT THE POSITION OF THE FILTERS F7-M6,
THE LOCATION OF THE CONDENSATE TRAY
AND THE POSITION OF DIP SWITCH 1
ON THE ELECTRONIC POWER BOARD
ELECTRONIC
BOARD
FILTER
F7
FILTER M6
FILTER F7
FILTER
M6
ELECTRONIC
BOARD
Condensate tray
Condensate tray

Energy Plus
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To invert the ows, therefore, set Dip 1 to ON,
invert the position of the lters F7 and M6 and
use the second condensate drain already set up
by closing the one not in use
INVERTING
THE AIR FLOWS
OF FLOOR UNITS
The oor units are equipped with two separate
condensate trays for the option of inversion of
the air ows.
Typical Floor Installation
Inverted Flows of Floor Installation
TYPICAL OPERATION
DIP 1 position
DIP 1 = OFF
DIP 1 = ON
INVERTING THE AIR FLOW OPERATION
FOR INVERTING THE FLOW:
INVERT THE POSITION OF THE FILTERS F7-M6,
THE THREADED CAPSULE
AND THE POSITION OF DIP SWITCH 1
ON THE ELECTRONIC POWER BOARD
A
C
D
B
C
B
D
A
ELECTRONIC
BOARD
ELECTRONIC
BOARD
FILTER
M6
FILTER
F7
FILTER F7
FILTER M6
Condensate drain
Condensate drain

Energy Plus
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ENY-P1 AIRFLOW PERFORMANCE
0,15
0,30
0,45
0,60
0,75
0,90
1,05
1,20
1,35
1,50
1,65
1,80
0 100 200 300 400 500 600 700 800
Flow rate (m
3
/h)
Control
Voltage
Flow rate (m
3
/h)
Single Fan Absorbed Power (W)
SFP
int
(kW/m
3
/s)
Flow rate (m
3
/h)
SFP
int
(kW/m
3
/s)
SFP
int_lim
2018 (kW/m
3
/s)
SFP
int_lim
2016 (kW/m
3
/s)
Available Static Pressure (Pa)
x
10V
9V
8V
7V
6V
5V
4V
4V
5V
6V
7V
8V
9V
10V
SUPPLY AND RETURN VENTILATION CIRCUITS
ELECTRICAL POWER ABSORBED
by the single circuit (1)
SFP int (2)
UE 1253/14
Flow rate / Available static pressure
1) The indication of the power absorbed by the single fan is useful in the event that the two fans are calibrated at unbalanced
flow rates and absorb different powers.
2) The charts provided in this catalogue to verify the SFPint apply in the event of flow rates balanced between supply and return.

Energy Plus
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ENY-P2 AIRFLOW PERFORMANCE
0,10
0,20
0,30
0,40
0,50
0,60
0,70
0,80
0,90
1,00
1,10
1,20
1,30
1,40
1,50
1,60
1,70
1,80
1,90
0 250 500 750 1000 1250 1500
Control
Voltage
SFP
int
(kW/m
3
/s)
Single Fan Absorbed Power (W)
Flow rate (m
3
/h)
SFP
int
(W/m
3
/s)
SFP
int_lim
2018 (W/m
3
/s)
SFP
int_lim
2016 (W/m
3
/s)
Flow rate (m
3
/h)
Flow rate (m
3
/h)
Available Static Pressure (Pa)
x
3V
4V
5V
6V
7V
8V 8,5V
6V
7V
8V
8,5V
5V
4V
3V
SUPPLY AND RETURN VENTILATION CIRCUITS
ELECTRICAL POWER ABSORBED
by the single circuit (1)
SFP int (2)
UE 1253/14
Flow rate / Available static pressure
1) The indication of the power absorbed by the single fan is useful in the event that the two fans are calibrated at unbalanced
flow rates and absorb different powers.
2) The charts provided in this catalogue to verify the SFPint apply in the event of flow rates balanced between supply and return.

Energy Plus
18
ENY-P3 AIRFLOW PERFORMANCE
0,20
0,30
0,40
0,50
0,60
0,70
0,80
0,90
1,00
1,10
1,20
1,30
1,40
1,50
1,60
1,70
1,80
1,90
0 200 400 600 800 1000 1200 1400 1600 1800
Flow rate (m
3
/h)
Available Static Pressure (Pa)
Flow rate (m
3
/h) Flow rate (m
3
/h)
Single Fan Absorbed Power (W)
SFP
int
(kW/m
3
/s)
SFP
int
(kW/m
3
/s)
SFP
int_lim
2018 (kW/m
3
/s)
SFP
int_lim
2016 (kW/m
3
/s)
Control
Voltage
x
9V
8V
7V
6V
5V
4V
3V
4V
3V
5V
6V
7V
8V
9V
SUPPLY AND RETURN VENTILATION CIRCUITS
Flow rate / Available static pressure
ELECTRICAL POWER ABSORBED
by the single circuit (1)
SFP int (2)
UE 1253/14
1) The indication of the power absorbed by the single fan is useful in the event that the two fans are calibrated at unbalanced
flow rates and absorb different powers.
2) The charts provided in this catalogue to verify the SFPint apply in the event of flow rates balanced between supply and return.

Energy Plus
19
ENY-P4 AIRFLOW PERFORMANCE
0,10
0,20
0,30
0,40
0,50
0,60
0,70
0,80
0,90
1,00
1,10
1,20
1,30
1,40
1,50
1,60
1,70
1,80
1,90
2,00
0 500 1000 1500 2000 2500 3000 3500
Available Static Pressure (Pa)
Flow rate (m
3
/h)
Flow rate (m
3
/h) Flow rate (m
3
/h)
Single Fan Absorbed Power (W)
SFP
int
(kW/m
3
/s)
SFP
int
(W/m
3
/s)
SFP
int_lim
2018 (W/m
3
/s)
SFP
int_lim
2016 (W/m
3
/s)
Control
Voltage
x
9V
8V
7V
6V
5V
4V
3V
4V
5V
6V
7V
8V
9V
3V
SUPPLY AND RETURN VENTILATION CIRCUITS
Flow rate / Available static pressure
ELECTRICAL POWER ABSORBED
by the single circuit (1)
SFP int (2)
UE 1253/14
1) The indication of the power absorbed by the single fan is useful in the event that the two fans are calibrated at unbalanced
flow rates and absorb different powers.
2) The charts provided in this catalogue to verify the SFPint apply in the event of flow rates balanced between supply and return.

Energy Plus
20
THERMAL PERFORMANCE
kg/h
mw
kW %
Phεt
kg/h
mw
kW %
Phεt
kg/h
mw
kW %
Phεt
kg/h
mw
kW %
Phεt
kg/h
mw
kW %
Phεt
TAE: 10°C TAE: 5°C TAE: 0°C TAE: -5°C TAE: -10°C
ENY–P1
ENY–P2
ENY–P3
ENY–P4
100
150
300
450
600
750
200
250
500
750
1000
1250
300
400
800
1200
1650
2000
400
550
1100
1700
2300
2900
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
0,00
90,4
88,2
84,6
82,6
81,2
80,1
89,4
88,2
84,6
82,5
81,1
80,0
88,4
86,9
83,4
81,4
79,8
78,9
95,3
93,5
89,7
87,4
85,8
84,6
0,30
0,44
0,85
1,25
1,63
2,01
0,60
0,74
1,42
2,08
2,72
3,35
0,89
1,17
2,24
3,27
4,42
5,29
1,28
1,72
3,31
4,98
6,62
8,23
0,15
0,21
0,42
0,62
0,81
0,96
0,29
0,36
0,69
1,04
1,35
1,68
0,43
0,56
1,10
1,64
2,20
2,53
0,63
0,84
1,61
2,45
3,22
4,02
90,5
88,3
84,7
82,7
81,3
80,2
89,5
88,3
84,7
82,6
81,2
80,1
88,5
87,0
83,5
81,5
79,9
79,0
95,4
93,6
89,8
87,5
85,9
84,7
0,46
0,67
1,28
1,87
2,45
3,03
0,90
1,11
2,13
3,12
4,08
5,04
1,34
1,75
3,36
4,92
6,63
7,95
1,92
2,59
4,97
7,48
9,94
12,36
0,26
0,38
0,72
1,09
1,43
1,71
0,51
0,63
1,20
1,81
2,38
2,85
0,76
1,00
1,91
2,88
3,88
4,54
1,10
1,49
2,82
4,34
5,77
6,97
91,7
89,8
86,4
84,5
83,2
82,2
90,8
89,7
86,4
84,5
83,1
82,1
89,9
88,5
85,2
83,4
81,9
81,0
96,1
94,5
91,1
89,0
87,5
86,4
0,62
0,90
1,74
2,55
3,35
4,13
1,22
1,50
2,90
4,25
5,57
6,88
1,81
2,38
4,57
6,71
9,06
10,87
2,58
3,49
6,72
10,14
13,50
16,81
0,36
0,53
1,03
1,52
2,01
2,43
0,70
0,88
1,72
2,52
3,35
4,05
1,06
1,37
2,66
3,90
5,31
6,49
1,50
1,98
3,89
5,87
7,90
9,99
94,3
92,7
90,0
88,4
87,3
86,4
93,5
92,7
90,0
88,4
87,2
86,3
92,9
91,8
89,0
87,4
86,1
85,4
97,5
96,4
93,8
92,1
90,9
90,0
0,79
1,17
2,26
3,34
4,39
5,43
1,57
1,94
3,77
5,56
7,31
9,04
2,34
3,08
5,97
8,79
11,91
14,31
3,27
4,44
8,65
13,13
17,53
21,88
0,44
0,65
1,25
1,85
2,47
3,01
0,86
1,08
2,08
3,09
4,12
5,00
1,31
1,69
3,36
4,97
6,57
8,05
1,75
2,43
4,74
7,25
9,83
12,09
96,5
95,4
93,2
91,9
90,9
90,1
96,0
95,3
93,2
91,8
90,8
90,0
95,5
94,6
92,4
91,0
89,9
89,2
98,7
98,0
96,1
94,9
93,9
93,2
0,97
1,44
2,81
4,16
5,49
6,80
1,93
2,40
4,69
6,93
9,14
11,32
2,88
3,81
7,44
10,99
14,92
17,95
3,97
5,42
10,64
16,23
21,74
27,19
Correction coefcients of the recovery efciency under unbalanced ow rate conditions
Qv
m3/h
model
Internal air conditions: ti= 20°C – URi= 50%
KEY:
ti= Internal air temperature.
URi= Internal relative humidity.
TAE = External air temperature.
Qv= Intake air flow rate.
Qr= Return air flow rate.
Ph= Thermal recovery on the intake flow.
εt= Recovery efficiency with balanced flow rates.
mw= Condensate production.
b = Unbalance percentage.
εt* = Recovery efficiency with unbalanced flow rates.
FT= Correction coefficient according to EAT variation.
FQ= Correction coefficient according to Qv variation.
FORMULAE:
TAE (°C)
FQ
QV(m3/h) QV(m3/h) QV(m3/h) QV(m3/h)
FQ FQ FQ
FT FT
TAE (°C)
ENY–P1
ENY–P1 / ENY–P2 / ENY–P3 ENY–P4
ENY–P2 ENY–P3 ENY–P4
b = 70%
b = 50%
b = 90%