S&P NASHIRA S 200 R8 Heat Recovery Unit

The S&P NASHIRA S 200 R8 heat recovery unit, reference 5153207400, is a double-flow mechanical ventilation unit designed to continuously renew the air in homes while recovering a large part of the thermal energy from the extracted air. It incorporates a high-efficiency counterflow sensible heat exchanger, EC motors with low power consumption and constant airflow, and achieves a maximum airflow of 200 m³/h at 350 Pa, with a sensible efficiency of 88%.

Its low-profile design is especially intended for installation in suspended ceilings and offers high mounting flexibility thanks to its reversible and symmetrical L/R design and its four rotatable Ø160 mm spigots. It includes a wired control, internal relative humidity sensors and a 100% automatic or manual bypass, providing a complete solution for residential heat recovery ventilation installations.

Double-flow mechanical ventilation with heat recovery

The NASHIRA S 200 R8 operates simultaneously with two air streams: it extracts stale air from areas such as bathrooms and the kitchen and supplies filtered fresh air to bedrooms, living rooms and other main rooms.

Both airflows pass through the heat recovery unit without mixing directly. The exchanger transfers thermal energy between them, reducing the losses associated with air renewal and lowering the home’s heating or cooling demand.

Counterflow sensible heat exchanger with 88% efficiency

Reference 5153207400 corresponds to the NASHIRA S 200 version with sensible heat exchanger, differing from the NASHIRA S 200 E version equipped with an enthalpy exchanger.

Soler & Palau declares for this model a sensible efficiency of 88% according to EN 13141-7.

The counterflow exchanger is designed to recover energy from the extracted air before it is expelled outdoors, using it to condition the fresh air entering the home.

Maximum airflow of 200 m³/h

The NASHIRA S 200 offers a wide regulation range to adapt operation to real ventilation needs:

• Minimum airflow: 70 m³/h.
• Maximum airflow: 200 m³/h at 350 Pa.

Airflow regulation makes it possible to adjust air renewal to the dwelling, its occupants and the pressure losses in the duct network.

Fans with constant-flow EC motors

The heat recovery unit incorporates centrifugal fans driven by EC motors, a technology aimed at reducing electrical consumption and efficiently adjusting system operation.

The fans operate with constant-flow regulation, compensating within their operating range for resistance variations that may occur in the installation due to ducts, filters or ventilation grilles.

100% automatic or manual bypass

The NASHIRA S incorporates a full bypass of the exchanger that allows thermal recovery to be avoided when outdoor conditions are favourable.

The bypass can operate automatically or be activated manually from the control, and it includes a specific airflow adjustment during operation.

This feature is especially useful during certain periods of spring, summer or autumn to take advantage of outdoor air without it passing through the recovery exchanger.

Built-in humidity sensors

The unit is equipped with internal relative humidity probes, which allow automatic ventilation modes to be used according to the conditions detected.

Automatic control helps adapt the ventilation level when indoor humidity rises, for example during showers, cooking or other household activities.

Reversible and symmetrical L/R design

One of the main features of the NASHIRA S range is its reversible and symmetrical design, which allows the airflow layout to be configured in left- or right-hand version.

This flexibility simplifies adaptation of the heat recovery unit to the available duct layout and facilitates integration in different home configurations.

90° rotatable spigots

The flexible installation system developed by S&P allows the spigots to be rotated by 90 degrees, making it easier to connect the ducts without having to completely rearrange the unit.

This solution reduces installation constraints when the available space above the suspended ceiling is limited.

4 air connections of Ø160 mm

The NASHIRA S 200 model has four Ø160 mm connections corresponding to the four main airflows of the double-flow system:

• Outdoor air intake.
• Supply of fresh air into the home.
• Extraction of indoor air.
• Exhaust of stale air outdoors.

The duct network must be correctly sized to respect the design airflow and minimise pressure losses and aerodynamic noise.

G4 filters included on supply and extract

Soler & Palau supplies the NASHIRA S as standard with filters to protect both occupants and the exchanger itself.

• Supply filter: G4.
• Extract filter: G4.

For supply air, higher filtration level filters are optionally available:

• M5.
• F7.
• F9.
• Activated carbon.

Filters should be checked and replaced periodically to maintain adequate airflow, good air quality and the efficiency of the heat recovery unit.

Filter maintenance warning

The system includes a visual filter maintenance alarm via the control.

The warning period can be configured to adapt maintenance to the use and conditions of the installation.

Included control unit

The wired remote control is included with the heat recovery unit.

It allows functions such as:

• Speed and airflow adjustment.
• Selection of manual or automatic operation.
• Alarm display.
• Dirty filter warning.
• Manual bypass activation.
• Configuration of operating parameters.

The control has approximate dimensions of 104 x 80 mm and a stated front depth of 17 mm.

Modbus communication and 0-10 V signal

The NASHIRA S range features Modbus communication and a 0-10 V control input, making it easy to integrate into compatible control and automation systems.

Modbus communication allows information to be exchanged with home automation or technical management systems that support this protocol.

Compatible with CONNECTAIR

Using a compatible SPCM communication board or module, the NASHIRA can be connected to CONNECTAIR, Soler & Palau’s IoT platform.

This solution expands the possibilities for monitoring and controlling the installation via the internet.

The communication module is an accessory and should not be considered included in reference 5153207400 unless expressly stated in the supply.

Compatible with AIRSENS sensor

The heat recovery unit can also work with compatible AIRSENS air quality sensors.

According to the ErP data published by S&P, incorporating local demand control via AIRSENS allows the NASHIRA S 200 + AIRSENS configuration to achieve an SEC classification of A+, compared with class A for the standard unit.

The AIRSENS sensor is not part of this reference and must be purchased separately.

Passivhaus certification

The NASHIRA S range has Passivhaus certification, a particularly relevant feature in highly energy-efficient homes and buildings where the aim is to reduce thermal losses caused by ventilation.

The heat recovery unit ensures continuous air renewal without having to rely solely on opening windows to ventilate the home.

Designed to meet residential ventilation requirements

Soler & Palau develops the NASHIRA S series for residential MVHR systems and states its suitability for the ventilation requirements set out in the Spanish Technical Building Code when the complete installation is correctly designed and executed.

The required airflow must be determined according to the project, the layout of the dwelling and the applicable regulations.

Installation in suspended ceiling

The unit is primarily designed for horizontal installation in a suspended ceiling.

Its height of only 210 mm makes it easy to integrate into technical spaces with limited height, while still maintaining access for inspection, filters and maintenance.

Compact dimensions

The official dimensional drawing of the NASHIRA S 200 specifies the following main dimensions:

• Body length: 1,000 mm.
• Width: 600 mm.
• Height: 210 mm.
• Total length indicated with fixing elements: 1,024 mm.
• Connection diameter: 160 mm.

The manufacturer provides additional dimensions in its technical drawing to correctly define fixing points, connections and maintenance clearances.

Weight of 24.5 kg

The NASHIRA S 200 with sensible heat exchanger has an approximate weight of 24.5 kg.

The structure combines a galvanized steel sheet casing with an epoxy-polyester finish and internal components made of EPP to obtain a lightweight, insulated unit.

Construction and materials

The technical documentation specifies the following main materials:

• Casing: galvanized steel sheet with epoxy-polyester surface finish.
• Front cover: internal EPP insulation.
• Internal body: EPP.
• Air connections: high-impact polystyrene.
• Fan housing: ABS.
• Impeller: galvanized steel sheet.
• Sensible exchanger: high-impact polystyrene and aluminium.

Condensate drain

As this is the version with a sensible heat exchanger, the unit may generate condensate under certain temperature and humidity conditions.

The unit includes a drain connection and is supplied with a 150 mm flexible tube with Ø19-19 mm connection.

The drain must be connected correctly using the system indicated by S&P to avoid water accumulation inside the unit.

230 V power supply

The NASHIRA S 200 uses the following power supply:

• Voltage: 230 V.
• Frequency: 50 Hz.
• Maximum unit consumption: 137 W.
• Maximum stated current: 1 A.

The technical manual also sets out the protection and disconnection requirements that must be respected during electrical wiring.

ErP electrical power of 75 W at maximum airflow

In the ErP ecodesign declaration, S&P publishes for the NASHIRA S 200 an electrical input power of 75 W at the maximum airflow point used by the regulation.

This ErP value should not be confused with the 137 W maximum electrical consumption indicated in the unit’s general specification table, as they correspond to different reference criteria and conditions.

Acoustic power level of 48.3 dB(A)

The technical documentation declares an acoustic power level Lw(A) of 48.3 dB(A) in accordance with EN 13141-7.

The sound level perceived in the home will also depend on the configured airflow, operating pressure, duct network, silencers, grilles and the building’s construction characteristics.

Energy class A

According to the manufacturer’s ecodesign data, reference 5153207400 achieves an SEC class A for temperate climate.

• SEC temperate climate: -39.8 kWh/(m²·year).
• SEC class: A.
• SEC cold climate: -78.2 kWh/(m²·year).
• SEC warm climate: -15.2 kWh/(m²·year).
• ErP thermal efficiency: 88%.

Outdoor air temperature range

For the NASHIRA S 200 sensible version, S&P specifies:

• Without preheating coil: outdoor air from -10 to +45 °C.
• With preheating coil: outdoor air from -20 to +45 °C.

The preheating coil is an additional element and should not be considered included in the standard heat recovery unit.

Indoor and installation conditions

For the version with sensible heat exchanger, the manufacturer specifies indoor conditions of up to +30 °C and 90% relative humidity.

The area where the unit is physically installed must be kept between +12 and +45 °C, with relative humidity below 90% and without condensation.

Continuous ventilation operation

S&P indicates that centralised ventilation systems are designed for continuous operation.

This makes it possible to maintain stable indoor air renewal and helps control problems associated with humidity and the build-up of contaminants inside the home.

Supplied components

The technical manual specifies the following supplied components:

• NASHIRA S heat recovery unit.
• Control unit.
• Flexible tube for condensate drain.
• User and commissioning manuals.
• Energy label.
• Mounting template.
• Label for airflow directions in R configuration.

Technical characteristics of the S&P NASHIRA S 200 R8

• Brand: Soler & Palau (S&P).
• Range: NASHIRA S.
• Model: NASHIRA S 200 R8.
• Reference: 5153207400.
• Type: double-flow MVHR heat recovery unit.
• Application: residential ventilation.
• Exchanger: counterflow sensible.
• Minimum airflow: 70 m³/h.
• Maximum airflow: 200 m³/h at 350 Pa.
• Sensible efficiency: 88%.
• Motors: low-consumption EC.
• Fans: constant-flow centrifugal.
• Bypass: 100%, automatic or manual.
• Humidity sensors: integrated.
• Configuration: reversible and symmetrical L/R.
• Spigots: 90° rotatable.
• Air connections: 4 x Ø160 mm.
• Supply filter: G4.
• Extract filter: G4.
• Optional supply filters: M5, F7, F9 and activated carbon.
• Wired control: included.
• Modbus: yes.
• 0-10 V control: yes.
• CONNECTAIR: compatible via optional communication module.
• Passivhaus certification: yes.
• SEC class: A.
• Power supply: 230 V / 50 Hz.
• Maximum consumption: 137 W.
• Maximum stated current: 1 A.
• ErP electrical power at maximum airflow: 75 W.
• Acoustic power Lw(A): 48.3 dB(A).
• Main dimensions: 1,000 x 600 x 210 mm.
• Total length shown in drawing: 1,024 mm.
• Weight: 24.5 kg.
• Drain: 150 mm flexible tube, Ø19-19 mm.
• Installation: suspended ceiling.

Compact and efficient heat recovery unit for residential MVHR

The Soler & Palau NASHIRA S 200 R8 combines up to 200 m³/h of ventilation with a high-efficiency counterflow sensible heat exchanger, EC motors, constant airflow and automatic management via humidity sensors.

Its height of only 210 mm, rotatable spigots, reversible L/R configuration and 100% bypass make both the design and installation of double-flow MVHR systems in homes easier.

The inclusion of wired control, G4 filters, Modbus communication, 0-10 V signal and compatibility with CONNECTAIR further expands its possibilities for regulation, monitoring and integration in high energy-efficiency residential installations.