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Product presentation
ZEPHIR2
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Introduction
ZEPHIR2 is the Clivet high efficiency package unit handling fresh air
Cuts down pollution
The stale air is extracted whilst fresh air is purified and blown in the space
With a high efficient filtration cuts down consumption
A high efficiency active recovery unit
The exaust air is used by the heat pump as energy source
It eliminates the high pressure drops of the static heat recovery systems
Plant simplification by reducing costs
Thermal/cooling capacity is supplied all year round
with high efficiency
Its energy contribution allows the choice of a smaller peripheral system
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Fresh air is a fundamental need
We spend indoors 90% of our time
The quality of the air we breathe is threatened by many
pollution sources.
Indoor, they affect both our health and the building
Outdoor, theyre often more dangerous
PM10CO
SOx
NOx
O3
C6 H6
VOC
POLLEN
CO2
SMOKEMOLD
DUST
TONERCO2
SMOKEMOLD
DUST
TONER
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Fresh air is a fundamental need
In the commercial sector the fresh air is an essential element
Due to sanitary guidelines and legislation
It causes complications in the choice of the system
The annual energy consumptions are considerable
Due to air displacement (ventilation and filtration)
Due to air handling (temperature/humidity control)
Heat recovery equipment is used
By direct exchange between exhaust and fresh air
It generates considerable pressure drops and further consumptions
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ZEPHIR2 is the innovative and efficient solution
It fully satisfies the air renewal, purification and energysavings in the commercial sector
Fresh air inletpurified and air-conditioned
It works with
100% fresh air
It extracts the unhealthy air fromindoors
The active thermodynamic recoveryamplifies the energy in the exhaust air thanks
to the heat pump technology
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ZEPHIR2 is the innovative and efficient solution
It eliminates the pollution in the buildings where we live
By extracing the unhealthy air
By blowing fresh air, purified and air-conditioned
With high efficiency electronic filters
It is an high efficiency active thermodynamic recovery unit
Recovering all year round the energy from the exhaust air
Providing further capacity against the ambient loads
It simplifies the system and increases the efficiency As it is a concept in a package
Thanks to the global high effiency
H10Equivalent
filteringefficiency
COP
7,6At 5Cambient
-50%PrimaryEnergy
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Operating principle
STANDARD UNIT
A. Fresh air intakeComplete with prefilter with G4 efficiency
B. Supply fan
Electronic controlled type,blows pure air in the rooms
C. Internal exchangerIt transfers energy (heat/cool)to the fresh air
D. External exchangerIt recovers energy (cool/heat)from the exhaust air
E. Exhaust air fanElectronic control type,it rejects the stale air outdoors
F. Heat PumpIt allows the active thermodynamic recoverysystem operation
A
B
C
D
E
F
EXHAUST AIR
FRESH AIR
Limmagine si riferisce a ZEPHIR 2 standard
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Operating principle
The two air flows are always separated
During the summer operation
The exhaust exchanger works as condenser
The fresh air exchanger works as evaporator
The energy produced by the active recovery is transferred to the fresh air
before it is blown into the space
During the winter operation
The cycle reverses
During the middle season
ZEPHIR2 can operate in Freecooling mode withouth the compressor operation
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Operating principle
MAIN OPTIONAL ITEMS
1. High efficiency filtrationSecond step, electronic type
(H10 equivalent efficiency) or
bag filters (F7 efficiency)
2. EXTRAPOWERAdditional water exchanger,
for application field extension
3. Three way motorized valveModulating, for EXTRAPOWER option
4. Hot gas re-heating coilIt recovers the condensing energy
to manage summer humidity control
5. HumidificationSteam or wet deck type
EXHAUST AIR ZONE
FRESH AIR ZONE
Limmagine si riferisce a ZEPHIR 2 standard
123
4
3
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Competitive advantage compared to a traditional system
For the fresh air in the commercial sector we use:
Fresh and exhaust air without recovery
Systems with static heat recovery
Mostly plate/ crossflow type
Systems with rotary heat recovery
Efficient also on the latent portion Other systems are less frequent (run around coil / heat pipe)
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With the same heating and cooling energy, yielded during the annual cycle in a typical
commercial installation, ZEPHIR 2 in the electronic filters version can reduce up to 50% of
primary energy consumptions than the most frequent traditional systems, considering
production, ventilation and pumping total consumptions.
A
B
C
D
E
F
Competitive advantage compared to a traditional system
PRIM ARY
ENERGY
CONSUMP.
GAS
FRESH AIR
LOAD
HEAT
RECOVERY
CAPACITY
THERMAL
INTEGRAT.
FRESH AIR
LOAD
HEAT
RECOVERY
CAPACITY
THERMAL
INTEGRAT.FAN COM PR. GENERATOR PUM PS GENERATOR
kW h kW h kW h kW h kW h kW h kW h kW h kW h kW h kW h GJ
Condensing boiler, air coo led
chiller, AHU with F7 f ilters, no
heat recovery
0 75940 0 40330 14960 0 10700 480 7910 479
Condensing boiler, air coo led
chiller, AHU with F7 f ilters, 55%
efficiency heat reco very
32600 43340 2090 38240 23270 0 10040 410 4520 421
Air-to -water heat pump, AH U
with F 7 filters, 55% efficiency
heat recovery
32600 43340 2090 38240 23270 0 22550 720 0 366
Water-to -water heat pump, AH U
with F 7 filters, 55% efficiency
heat recovery
32600 43340 2090 38240 23270 0 15650 250 0 308
Zephir2 (filters F7) 75940 0 40330 0 12500 17260 0 0 0 234
Zephir2 (electronic fi lters) 75940 0 40330 0 10750 17260 0 0 0 220
SYSTEM
Ep
INTEGRATION CONSUM PTION
ELECTRICITY
H. REC. CONSUM PTION
ELECTRICITY
59280 10610
LOADS AND CAPACITIES
HEATING COOLING
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Il vantaggio competitivo rispetto ai sistemi tradizionali
The system simplification is clear:
ZEPHIR2
WITH ELECTRONIC FILTERS
- 54%Ep
CONDENSING BOILER AND PUMPSAIR COOLED CHILLER AND PUMPSAHU WITH 55% RECOVERY
- 12%Ep
B
AIR-TO-WATER HEAT PUMPAND USER PUMPSAHU WITH 55% RECOVERY
- 24%Ep
C
WATER-TO-WATER HEAT PUMPAND USER/SOURCE PUMPSAHU WITH 55% RECOVERY
- 36%Ep
D
ZEPHIR2
WITH F7 BAG FILTERS
- 51%Ep
E
CONDENSING BOILER AND PUMPSAIR COOLED CHILLER AND PUMPSAHU W/O RECOVERY
A
Ep = Energia primariaF
Ep 4 7 9 GJ Ep 4 2 1 GJ Ep 3 6 6 GJ Ep 3 0 8 GJ
Ep 2 3 4 GJ Ep 2 2 0 GJ
Competitive advantage compared to a traditional system
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Active thermodynamic recovery
It doesnt penalize the ventilation
The traditional recovery system
Causes pressure drops of 250 Pa on both air flows
Requires high consumptions for the ventilation
The high consumptions all year round absorbs the recovered energy (non-
sense)
The active thermodynamic recovery unit:
Uses high efficiency exchange coils
Minimizes the pressure drops during the whole operation cycle
Reduces electric consumption for the ventilation
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Pressure
Enthalpy
-30
-10
0
10
20
30
40
50
60
-20
-40 C
HEAT PUMP MODE- 5C OUTDOOR
+ 20C / 50% R.H. INDOOR
COMPRESSOR
POWER
COMPRESS
OR
POWER
COP7,6
COP3,1
AIR-TO-WATERHEAT PUMP
ZEPHIR2
R410A refrigerant
Active thermodynamic recovery
The exhaust air as energy source
The thermodynamic cycle underlines that:
50% reduction ofcompressor
absorbedcapacity
The condensingtemperatureincreases
The evaporatingtemperatureincreases
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Active thermodynamic recovery
The highest efficiency at partial load
ZEPHIR2 uses 2 Scroll compressors per circuit
Uneven tandem 3-control step control
It has a very high efficiency at partial loads
It is the real operation condition
50% of efficiency increase
It assures the highest reliability
Compressors are produced on mass scale
They offer the highest constructive reliability
They cause the spare standardization
7,6
8,4
9,0
COP3,9
5,8
7,0
EER
THE SEQUENTIAL
DEACTIVATION OFCOMPRESSORSINCREASE THEEFFICIENCY
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Active thermodynamic recovery
The electronic expansion valve assures
An efficient operation in all conditions
The load chasing and the control stability
The further increase of the efficiency
A longer compressor life
TIME
SUPE
RHEATING
CAPACITY
LOW EFFICIENCY
MAYOVERHEAT
LOW EFFICIENCY
LIQUID SLUGGING
HIGH EFFICIENCY BEST OPERATION
TEV
EEV
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TARIA ESTERNA-
TSET INTERNO
Active thermodynamic recovery
ZEPHIR2 is programmed for the best use of energy
It automatically chooses the appropriate operating cycle
according to the outdoor and indoor conditions
SET
IT CHOOSESTHE OPERATION
MODE(HEAT / COOL)
IT DECIDES
HOW MANY AND WHICHRESOURCESTO ACTIVATE
COMPARES ALSO
TINDOOR AIR-
TINTERNAL SET
COMPARES ALSO
TOUTDOOR AIR-
TINTERNAL SET
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Active thermodynamic recovery
System simplification and reliability increase
The main part of the common system activities are already
manufactured and tested at Clivet factory: It is sufficient to connect the air distribution ducts and supply the unit
Reduction of the starting system costs compared to a traditional solution
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Active thermodynamic recovery
The concept of generator with integrated recovery
Thanks to the heat pump technology applied to the fresh air, ZEPHIR2 is an
high efficiency heating or cooling generator with active thermodynamic
recovery on the exhaust air
The yielded energy reduces the building requirement quota to the auxiliary
generator (start of the system and/or load peaks)
Reducing the global primary energy requirements the
global generating system is more efficient than the
traditional solutions
It increases the building energetic performances,
and its value on the real estate market
AA
DD
CC
EE
FF
GG
BB
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High efficiency on ventilation
To increase the ventilation, reducing consumptions
The ventilation represents an important expense entry
It is to add also the research of the right operation conditions
ZEPHIR2
ventilation technology allows the reduction ofboth these operative costs
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High efficiency on ventilation
The ventilation system
Wide operating curve (m3/h Pa) of reverse blades rotors
High efficiency electrical motors and electronic control
The direct coupling eliminates
The transmission inefficiencies
The transmission wear and maintenance
FAN MOTOR EFFICIENCY
EC
3 PHASE
100%
75%
50%
25%
0%
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High efficiency on ventilation
With equal supplied performances, the global ventilation
system saves the 30% of energy than traditional ventilation
systems
7.800 m3/ h
500 Pa 1.249rpm
7.800 m3/ h
500 Pa
1.303rpm
Airflow Airflow
Absorbed Power
1,8 kWAbsorbed Power
2,6 kW
-31%
7.800 m3/ h
500 Pa 1.249rpm
7.800 m3/ h
500 Pa
1.303rpm
Airflow Airflow
Absorbed Power
1,8 kWAbsorbed Power
2,6 kW
-31%
Electric motor absorbed capacity, manufacturer dataExample referred to a flow of 7.800 m3/h with external static pressure of 500 Pa
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High efficiency on ventilation
The automatic control of the air flows
Eliminates the setting during the installation
The desidered flow is set on the user display Consequently the fan speed varies automatically
The unit gears to the real system pressure drops
It mantains the available ESP also during the filter clogging
6000 m3/h
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High efficiency on ventilation
The Freecooling: direct cooling with the outdoor air
It is the perfect resource with high internal loads
The external air is always filtered before being introduced
The cooling capacity is supplied without compressors
- important management savings
- It increases the compressors life
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High efficiency on filtration
According to the second step of electronic filtration
The equivalent filtration efficiency reaches the H10 class
(efficiency>95% per particles with diameter > 0,5 micron)
Reduction of fine dust, PM10, bacteria, mould and viruses
100 m 10 m 1m 0,1m1000 m
CLEAN
AIR
G4 F7
ELECTRONIC
DUST SMOGBACTERIAMOULD VIRUS
G4
RAIN POLLEN FINE DUST
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High efficiency on filtration
Electrostatic filtration
A) The air pollution enters the electronic filter
B) The pollutant particles are positively loaded
C) They are captured by the plates connected to the mass
A B C
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High efficiency on filtration
The filter air crosses the aluminium alloy blades
The pressure drop is reduced up to 80% than traditional
filtration systems
1 2 3 4AIR SPEED [m/s]
0
100
200
300
PRESSUREDROP ON AIR FILTERS[Pa]
310
170
30
DESIGN VALUE
400
Traditional
H10
BagF7
ElectronicH10
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High efficiency on filtration
The electronic filters reduce the global management costs
During the operation for the high energy reduction for ventilation
During the mantainance Since filters are washable
The typical pay-back is less than 18 months
YEARS
AIRFILTER
LIF
ECYCLECOST[%]
1 2 3 4 5 6
50
100
150
0
PAY BACK TIME
ELECTRONIC
BAG
YEARS
AIRFILTER
LIF
ECYCLECOST[%]
1 2 3 4 5 6
50
100
150
0
PAY BACK TIME
ELECTRONIC
BAG
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High efficiency on filtration
Considering an installation (rif. standard unit costs = 100)Unit CPAN-XHE ENERGY 090 (9.000 m3/h)
Second filtration stage Bag type F7 Electronic H10
FILTRATION SYSTEM PURCHASE COST
Extraprice on standard unit + 3,5% + 20,6%
ENERGY COST
Fan energy absorption per year 8,9% 6,2%
MAINTENANCE COST
Maintenance scheduling 3 1
Spares price
(per visit)
3,9%
(F7 filters)
1,0%
(cleaning fluid)
Maintenance time per visit 60 90
Maintenance unitary price 30 EUR/h
Maintenance cost per year 12,1% 1,2%OPERATION COST PER YEAR
Energy + Maintenance, % on the std. unit cost 21,0% 7,4%
Return on Investment (ROI) - 15,8 months
(1,67 year)
19%
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Two versions for comfort and business
The ENERGY and RECOVERY versions
The design is the same, with equal air flow
The technological solutions are the same
They are different for the heat pump nominal capacity
Therefore the supply conditions are different
HEATING
MODE
COOLING
MODE- 10
0
10
20
40
30
50
FREECOOLING
MODE
SUPPLY TEMPERATURE [C]
- 5 0 5 10 15 25 30 35 40
OUTDOOR TEMPERATURE [C]
ENERGY RECOVERY
20
HEATING
MODE
COOLING
MODE- 10
0
10
20
40
30
50
FREECOOLING
MODE
SUPPLY TEMPERATURE [C]
- 5 0 5 10 15 25 30 35 40
OUTDOOR TEMPERATURE [C]
ENERGY RECOVERY
20
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RECOVERY
Two versions for comfort and business
The RECOVERY version
Eliminates a large part of the fresh air
load also in the most critical operation
conditions
In the remaining period of the year it
generates, with greater efficiency,
additional cooling capacity to serve the
building needs
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The ENERGY version
is the largest capacity model
eliminates the fresh air load for a
large period of the year
In the remaining operation period thelargest available capacity reduces still
further the operation of the integrated
air conditioning system
increases the RECOVERY version
advantages
ENERGY
Two versions for comfort and business
+30%
CAPACITY
T i f f d b i
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EXTRAPOWER option
is based on a coil exchanger fitted with 3
way valve requires only two hydraulic connections
(warm or cool fluid produced out of the
unit)
The largest capacity allows:
- the further increase of the
dehumidification capacity in special
critical situations (ex. cold beams)- The extension of the operating field
in extreme cold/warm climates
Two versions for comfort and business
ENERGY
EXTRAPOWER
RECOVERY
EXTRAPOWER
Ad t f th diff t li ti
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Advantages for the different applications
The most frequent installation cases of ZEPHIR2 are:
Shopping centres fresh air supply in the shopping area
Office buildings fresh air supply in office areas
Hotels primary air in rooms and common areas
Hospitals
active chilled beams power supply in hospital rooms
Ad t f th diff t li ti
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1
Advantages for the different applications
Combined systems with CW terminals and fresh air unit
Terminal units, used also for dehumidification, can be of any type
Fresh air is blown in the building with appropriate diffusion
The whole system is therefore extremely simplified
Simplified prospect of system compability
ENERGY
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Advantages for the different applications
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2
Advantages for the different applications
Combined systems with active floor and fresh air units
In this case the existing terminal unit (active floor) cannot perform
dehumidification
This function is done by ZEPHIR2, which in extreme conditions increases its
latent capacity by temporary air flow modulation
ENERGY
Simplified prospect of system compability
Advantages for the different applications
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0 5 10 15 20 25 30 35 40 45 50-5-10
Dry bulb temperature, C
Absolutehumid
ity,g/kg
5
15
25
10
2080%
60%
40%
20%
5
10
15
20
0
-5
Wet bulb
tempe
ratu
re,C
30
0
-15-20
-10-15-20
Relative humidity, %
oa sa
ra
25
30
OARA
SA
RA
3.4 g/kg20% RH22 Csupplyair
3.4 g/kg89% RH0 Coutdoor air
7.3 g/ kg50% RH20 Creturn air
HEATING MODE
70% OFF NOMINALAIRFLOW
8.6 g/kg75% RH16 CSUPPLY AIR
12.5 g/ kg42% RH32 COUTDOOR AIR
11.1g/ kg50% RH27 CRETURN AIR
COOLING MODE
3.4 g/kg20% RH22 Csupplyair
3.4 g/kg89% RH0 Coutdoor air
7.3 g/ kg50% RH20 Creturn air
HEATING MODE
70% OFF NOMINALAIRFLOW
8.6 g/kg75% RH16 CSUPPLY AIR
12.5 g/ kg42% RH32 COUTDOOR AIR
11.1g/ kg50% RH27 CRETURN AIR
COOLING MODE
Advantages for the different applications
Combined systems with radiant panels and fresh air units
Winter and summer air handling example
ENERGY
2
Simplified prospect of system compability
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Advantages for the different applications
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0 5 10 15 20 25 30 35 40 45 50-5-10
Dry bulb temperature, C
Absolutehumidity,g/kg
5
15
25
10
2080%
60%
40%
20%
5
10
15
20
0
-5
Wet bulb
tempe
ratu
re,C
30
0
-15-20
-10-15-20
Relative humidity, %
ra
25
30
OA
SA
IA
oa sa
RA
3.4 g/kg20% RH22 Csupplyair
3.4 g/kg89% RH0 Coutdoor air
7.3 g/ kg50% RH20 Creturn air
HEATING MODE
OUT 23CIN 18CWATER
9.2 g/kg94% RH13 CSUPPLY AIR
12.5 g/ kg72% RH23 CINTAKEAIR
12.5 g/ kg42% RH32 COUTDOOR AIR
11.1g/ kg50% RH27 CRETURN AIR
COOLING MODE
3.4 g/kg20% RH22 Csupplyair
3.4 g/kg89% RH0 Coutdoor air
7.3 g/ kg50% RH20 Creturn air
HEATING MODE
OUT 23CIN 18CWATER
9.2 g/kg94% RH13 CSUPPLY AIR
12.5 g/ kg72% RH23 CINTAKEAIR
12.5 g/ kg42% RH32 COUTDOOR AIR
11.1g/ kg50% RH27 CRETURN AIR
COOLING MODE
Advantages for the different applications
Combined systems with chilled beams and fresh air units
Winter and summer air handling example
ENERGY
EXTRAPOWER
3
Simplified prospect of system compability
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Advantages for the different applications
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0 5 10 15 20 25 30 35 40 45 50-5-10
Dry bulb temperature, C
Absolutehumid
ity,g/kg
5
15
25
10
2080%
60%
40%
20%
5
10
15
20
0
-5
Wet b
ulbtempe
ratu
re,C
30
0
-15-20
-10-15-20
Relative humidity, %
ra
25
30
OA
SARA
oa sa
3.4 g/kg29% RH17 Csupplyair
3.4 g/kg89% RH0 Coutdoor air
7.3 g/ kg50% RH20 Creturn air
HEATING MODE
10.5 g/ kg66% RH22 CSUPPLY AIR
12.5 g/ kg42% RH32 COUTDOOR AIR
11.1g/ kg50% RH27 CRETURN AIR
COOLING MODE
3.4 g/kg29% RH17 Csupplyair
3.4 g/kg89% RH0 Coutdoor air
7.3 g/ kg50% RH20 Creturn air
HEATING MODE
10.5 g/ kg66% RH22 CSUPPLY AIR
12.5 g/ kg42% RH32 COUTDOOR AIR
11.1g/ kg50% RH27 CRETURN AIR
COOLING MODE
Advantages for the different applications
Combined systems with inlet on terminal units
Winter and summer air handling example
RECOVERY
4
Simplified prospect of system compability
Advantages for the different applications
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5
WLHP
Advantages for the different applications
Extension of the application field
Already present fluids, even if at moderate temperature, are used
These fluids wouldnt be used for comfort / air conditioning
In the following example, ZEPHIR2 uses the WLHP water
RECOVERY
EXTRAPOWER
Simplified prospect of system compability
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Advantages for the different applications
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47 ZEPHIR2 ITA, R01
g pp
Extension of the application field The available configuration for outdoor low temperatures
allows the operation between 5C and 20C
allows the frost protection of electrical and control switchboard
The available configuration for outdoor high temperatures
allows the operation between +40C and +50C
allows the overheating protection of electrical and control switchboard
sand louvres are availables also on the fresh air
5
-5C
-20C
+50C
+40C
Advantages for the different applications
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48 ZEPHIR2 ITA, R01
6
g pp
System retrofit (fresh air and/or recovery)
The fresh air can be added on existing systems, when it is not present
The recovery can be added on existing systems, when it is not present
Everything without heavy interventions on the system
ENERGY
Simplified prospect of system compability
Conclusions
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49 ZEPHIR2 ITA, R01
ZEPHIR2
is the packaged solution for the fresh air and air purification
has an high efficiency active thermodynamic recovery
simplifies and reduces the system price
is available in the ENERGY and RECOVERY versions can be integrated in the most different system applications
allows the discreet retrofit in existing systems
increases the building energetical performance
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8/4/2019 Presentacin Recuperacin Termodinmica Activa_ENG
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50 ZEPHIR2 ITA, R01
CLIVET S.p.A.Via Camp Lonc 25
32032 Feltre, Belluno
ITALY
Tel. + 39 0439 3131
Fax + 39 0439 313300
www.clivet.com