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PRODUCTS PLATES HEAT EXCHANGER
Plate heat exchangers function to transfer heat between two airflows operating at different temperatures.
The use of such equipment enables considerable savings to be achieved in the operating costs of heating and air-conditioning equipment, and thus the saving of energy that would otherwise be lost.

Basic Features for plate heat exchangers: :
Low costs of installation and operation
Complete separation of air stream
No moving parts
Easy adaptability to any use
Products with materials suitable for different environments
Low pressure-drop
High efficiency
Easy to clean, with minimal maintenanc
Noise-dampening effect
recuperatore a piastre
recuperatore a piastre
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MODEL RANGE  ›  DIMENSIONS, PERFORMANCES, APPLICATIONS

B Series

Serie B

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Applications
› Air Conditioning and Heating
› Swimming pools and Hospitals
› Industrial ventilation
› Air replacement with recovery
› Paint spray booths
› Heat recovery from flue gases
› Data Center

Serie B

  Dimensions
Summary table for quick reference.
Different plate sizes allow for optimal sizing to comply with requirements.

Model W (in) L (in)
03 11,81 Max 19.69
04 15,75 Max 19.69
05 19,69 Max 35.43
06 23,62 Max 39.37
07 27,56 Max 35.43
08 31,69 Max 70.87
09 35,63 Max 70.87
10 39,57 Max 70.87
12 47,44 Max 70.87
14 55,12 Max 70.87
16 63,39 Max 70.87
18 71,26 Max 70.87
20 79,13 Max 70.87
24 94,88 Max 70.87
Performance
Indicative performance: for more accurate selection, please use our Rex selection program or contact Recuperator.

Model Flow Rate (ft³/min)
03 177
04 412
05 1177
06 2060
07 2354
08 2766
09 4709
10 6180
12 7946
14 8829
16 9417
18 11183
20 12360
24 13832
 
F Series

Serie F

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Applications
› Air Conditioning and Heating
› Swimming pools and Hospitals
› Industrial ventilation
› Air replacement with recovery
› Paint spray booths

Serie F

  Dimensions
Summary table for quick reference.
Different plate sizes allow for optimal sizing to comply with requirements.

Model W (in) L (in)
07 27,76 Max 62.99
08 31,69 Max 62.99
09 35,63 Max 62.99
10 39,57 Max 70.87
12 47,44 Max 70.87
14 55,51 Max 70.87
16 63,39 Max 70.87
18 71,26 Max 70.87
20 79,13 Max 70.87
24 94,88 Max 70.87
Performance
Indicative performance: for more accurate selection, please use our Rex selection program or contact Recuperator.

Model Flow Rate (ft³/min)
07 2825
08 1942
09 4414
10 6357
12 8534
14 9123
16 9241
18 13243
20 16186
24 18246
 
A Series

Serie HE

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Applications
› Heat recovery in very low energy consumption houses

› Pre-heating and pre-cooling in air handling units

› Heatsink into Shelters and Cabinets of the mobile telecommunications industry
› Air conditioning and ventilation
› Data Center
› Swimming pools and hospitals

Serie A

  Dimensions
Summary table for quick reference.
Different plate sizes allow for optimal sizing to comply with requirements.

Model W (in) L (in)
03 11,81 Max 19.69
04 15,75 Max 19.69
05 19,69 Max 19.69
06 23,62 Max 19.69
08 31,69 Max 70.87
09 35,63 Max 70.87
10 39,57 Max 70.87
12 47,44 Max 70.87
16 63,39 Max 70.87
18 71,26 Max 70.87
20 79,13 Max 70.87
24 94,88 Max 70.87
Performance
Indicative performance: for more accurate selection, please use our Rex selection program or contact Recuperator.

Model Flow Rate (ft³/min)
03 182
04 459
05 765
06 942
08 5003
09 5297
10 5591
12 6180
16 6769
18 7240
20 7593
24 8358
 
SKT Series

Serie B

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Characteristics
› Lower price
› Available models 04 - 05 - 06
› Lengths from 200 mm to 1800 mm (7.87" to 70.86")
› Max differential pressure 1500 Pa (6 in WC)
› Aluminum plates "AL"
› Reduced side plates "AZ" and aluminum "slide-in" corner profile "CD", for quick installation
› Additionally sealed exchanger block "SC", no silicon sealant "NS"

Modulari
  Description and Diagram
› Recuperator Stock Cubes are made by combining more basic units (check data list) for each model.

› Special rubber gaskets or sealing are necessary to ensure tightness between the side plates.

Modulari
Performance and Dimensions
Summary table for quick reference. Indicative performance: for more accurate selection, please use our Rex selection program or contact Recuperator.

Model W (in) L (in) Flow Rate cfm η % ΔP (inWC)
STKx 04 15.75x15.75 7.874÷59.06 589÷4,414 ›50 ‹1.004
STKx 05 19.69x19.69 11.81÷59.06 1,118÷5,533
STKx 06 23.62x23.62 15.75÷70.87 1,883÷8,593
 

OTHER MODELS  ›  VAPOBLOC

Transfers heat and humidity
and tight against germs and odors.


VAPOBLOC
 
Vapobloc   Membrana Vapobloc

MATERIALS

The material used for the plates has little or no effect on the heat transmission. More importance attaches to corrosion resistance and cost. Given its corrosion resistance, workability, fire resistance, and longevity, aluminum is used for most applications.
In environments with an aggressive atmosphere, the aluminum is protected by a non-toxic, epoxy-based, corrosion-resistant coat of paint (AC version). Lastly, should the operating temperature need to exceed 200°C(400°F) or involve industrial processing applications, AISI 316L stainless steel alloys may be used instead.
 
applicazioni   funzionamento-recuperatore

OPTIONS  ›  CASING, SIDE PLATES, CORNER PROFILES, SEALING, BY-PASS WITH OR WITHOUT DAMPERS

Various options are provided for particular applications, to guarantee the correct operation for each type of requirement.

Casing
The importance of the casing should not be underrated, since, with small adjustments, it is possible to have solutions that result in considerable savings in time and money. The casing consists of side panels and corner profiles.
 
Option TV (painted casing)
The standard casing can be protected with an epoxy coating against any aggressive substances. This option is normally associated with "option AC" painted plates.
  telaio_TV
Option RF (reinforced casing)
In the case of applications in which the heat exchanger may undergo particularly intense mechanical stresses, or if the equipment is especially long, the casing may be reinforced.
  telaio_RF
Casing/Side Plate
The sides of the standard heat exchangers can be made of aluminum or galvanized steel (in agreement with data sheets you can find on the updated selection program).
 
AR option
End plates made of galvanized steel, with plain surface and slotted, slide-in edges for easy installation, are
Are available for all B series with plates of 20 mm (except for B02), and for F07 and F08 model with plates of 30 mm.
  Fianco AR
AE option
End plates made of galvanized steel, with a flange, useful for duct installation, are available for all B and F series (except for B02), with plates from 20 mm to 40 mm.
  Fianco AE
AZ option
End plates made of aluminum, with reduced thickness of 1mm, with plain surface and slotted, slide-in edges for easy installation.
This solution (available only for some B series models) makes it possible to have a larger plate surface, which may be important in confined spaces. In addition, this equipment is very light and easy to handle.
  opzione AZ (Fianchi ridotti)
Casing/Corner Profiles
Standard corner profiles are made with aluminium profiles in accordance with a drawing and a matrix patented by Recuperator. They have a 90° angle and throughout their length have drilling marks for installing with ducts.
 
Option CD
(special profiles, only with AZ or AR side plate)

Heat exchangers can be fitted with special corner profiles so that they can be quickly installed in the air handling unit.
  opzione CD
Option CS (bevelled profiles
Heat exchangers in the B Series can be given special bevelled profiles. Generally, this type of corner profile goes with reduced side panels (Option AZ).
  opzione CS
Sealing
Recuperator uses various types of sealing material for different purposes. The sealing material normally used is modified silicone.
 
Option NS (without silicone)
Recuperator equipment can be produced without the use of silicone for applications requiring silicone-free equipment (Example: automotive paint spray booths).
  Opzione NS
Option SC (extra sealing)
Equipment in the F Series is made with mechanical sealing Option "SM". To ensure better tightness between two air-flows, extra sealing can be used. This option is advised for applications such as hospitals, white rooms, paint spray booths, etc. In the B Series, the SC Option is standard. Recuperator equipment has been tested in independent laboratories with excellent results, and very low leakage.
  Opzione SC
Option XS
(resistance to high differential pressure)

During manufacturing, the plates may be subjected to special treatment to make them resistant to differential pressures up to 2500 Pa (10 in WC).
  Opzione XS
By-pass
Recuperator offers a wide range of by-pass dampers, which are fitted directly on the heat exchanger casing. The dampers are made with aluminium blades, the gears of plastic, and they are fitted with airtight gaskets. Recuperator provides diagrams testifying to the tightness of the dampers, tested at the laboratories of the Turin Politecnico.

Dampers are available with standard aluminum, or with epoxy-coated aluminum.
 
Option BS
(lateral by-pass without damper)

The heat exchangers are provided with a lateral bypass section without a damper.
  Opzione BS
Option BP
(lateral by-pass with a damper)

The heat exchangers have a lateral bypass section with a damper.
  Opzione BP
Option BC
(central by-pass with damper)

The heat exchangers are equipped with a central by-pass section with a damper.
  Opzione BC
Option BD
Lateral by-pass, with internal command, to minimize the overall size.
  Opzione BD
Special By-pass (available on demand)
 
Option BZ
(central by-pass without a damper)

The heat exchangers have a central by-pass section without a damper. The choice of this type of by-pass is advised in very long units; this solution enables the air to pass through, thus reducing turbulence and pressure drops at the input.
  Opzione BZ
Option BB
(central by-pass with damper and internal servocontrol)

This solution makes it possible to install the motor driving the damper, inside the AHU.
  Opzione BB
Option BV
(lateral bypass with damper and vertical blades)

This solution makes it possible to install the motor driving the damper, inside the AHU, and is advised only in the case of short equipment.
  Opzione BV
Option BM
(lateral by-pass with single blade)

The heat exchangers are provided with a lateral by-pass section inside which a blade is installed for regulating the flow. The blade is supplied separately with the assembly kit.
  Opzione BM
Option BY
Lateral by-pass with single internal damper on the bypass side only.

  Opzione BY
Option BL
Lateral by-pass with short damper for internal shaft.

  Opzione BL

TECHNICAL NOTES  ›  INSTALLATIONS, CONDENSATIONS, PRESSURE DROP, MAINTENANCE

Type of Installation
The direction of the air flows is not of particular importance; however, it is advisable for the exhaust air to pass through the heat exchanger from top to bottom in cases where the formation of condensation is expected. Some examples of the movement of the two air-flows: by using a single heat exchanger. It is possible, in certain cases, to use several heat exchangers to accommodate limited available space or a big difference between the two air flows.
The drawings give a few examples.

 
flusso-incrociato   flusso-incrociato
in-serie   in-serie
parallelo-incrociato   serie-parallelo
equicorrente   serie-parallelo
Condensation
Plate heat exchangers do not allow the passage of humidity from one air flowto the other, but may use part of the latent heat contained in the humid exhaust air. Indeed, in the case of very low external temperatures, if the exhaust air is cooled until it reaches its dew-point temperature, condensation forms and the heat liberated during the change of phase (latent heat) is transferred to the wall of the heat exchanger.
 
The direction of the air-flows is not normally of any great importance; however, whenever the formation of condensation is expected, it is advisable that the exhaust air should cross the heat exchanger from the top towards the bottom. In this way, gravity will cause the condensation to flow into the lower part of the duct or air handling unit, where it is advisable to install a drain pan and drain.   Condensazione
Differential Pressure
High differential pressures may deform the plates, and should they exceed the design limits indicated in the REX calculation program and in the catalogs, they might cause permanent damage to the exchanger, leading to a reduction in efficiency, a change of flow, and excessive leakage.
 
For applications calling for high speed and/or high differential pressures (for example, in hospitals), Recuperator provides a special structure for greater resistance.   Pressione differenziale
Control
If the temperature of the humid air current is below the dew point, condensation takes place with the risk that ice will form and cause an increase in pressure-drop, as well as a deterioration in the performance of the heat exchanger.
The formation of ice may be controlled either by pre-heating the outdoor air, as well as by diverting part of it.
 
The bypass solution is generally more suitable, from a financial point of view, rather than the pre-heating method. Dampers are mounted on the casing of the heat exchanger, and the by-pass sectors are designed in such a way as to show pressure-drops similar to those that take place inside the heat exchanger.   Regolazione
Maintenance
Recuperator equipment has no moving parts, so it requires no mechanical maintenance. In the presence of dust or contaminant substances, it is necessary to provide adequate filters upstream of the heat exchanger.

Operation and Maintenance Manual
 
The equipment can be cleaned using compressed air (in the case of dust deposits), paying attention not to damage the plates and the seals, or by spraying with detergents in the event of grease deposits. Highly alkaline solutions or other aggressive substances to aluminum or the sealants are obviously to be avoided.

N.B.: In countries subject to severe sandstorms, it is necessary to provide sand-filters, followed by high-efficiency bag filters on outdoor air inlets.
  Manutenzione

NOMENCLATURE

nomenclatura-piastre
Recuperator S.p.A.
Rescaldina (MI) - Italy

Recuperator USA
PO Box 10084 - Lancaster, PA 17605
Tel: 717-299-5679 | Fax: 717-299-5679
Cell: 717-917-3635
Herr@RecuperatorUSA.com
Skype: scott.herr5
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