Swegon CASA R4-C Genius residential ventilation unit

Swegon CASA R4-C Genius

Swegon CASA R4-C · Residential ERV · Thailand

CASA R4-C

Sorption humidity recovery

Low-profile whole-home ventilation for homes and apartments where ceiling height or plant-space depth is limited, with Sorption humidity recovery and CASA Genius controls.

Engineered for Thailand

Sorption ventilation where installation height is limited

CASA R4-C Sorption combines balanced fresh air, energy and moisture recovery and intelligent controls in a low-profile format. Ventpro can integrate it into a suspended-ceiling, wall or floor concept and design the complete air path around the home.

Airflow range

20–92 L/s

Air volume

72–331 m³/h

Duct connections

4 × Ø160 mm

Format

Low-profile / ceiling

Final unit selection is based on design airflow, external pressure, duct layout, occupancy and the exact Thailand product configuration.

Product

CASA R4-C

Humidity strategy

Sorption

Controls

CASA Genius

Thailand option

Comfort Cooling

Why CASA R4-C

Whole-home ventilation for low-profile installations

CASA R4-C is a useful option when the project needs a compact ceiling-oriented format without giving up balanced ventilation, filtration, Sorption humidity recovery and smart controls.

Cleaner air throughout the home

Fresh air & filtration

Fresh outdoor air enters through a controlled filtration path and is supplied to bedrooms and living areas while stale air is extracted from bathrooms and utility spaces.

Sorption moisture recovery

Thailand humidity advantage

CASA Sorption recovers both energy and moisture, reducing the humidity load in incoming fresh air before the air-conditioning system has to handle the remaining load.

CASA Genius controls

Smart operation

Intelligent controls and optional sensors let the ventilation respond automatically to humidity, air quality and how the home is being used.

The Thailand advantage

Moisture Management with CASA R4-C Sorption

Thailand’s fresh air is also humid air. CASA R4-C Sorption transfers both energy and moisture between the extract air and the incoming fresh air, helping reduce the humidity load before the air enters the home.

Humidity recovery can reach up to 80% . During hot and humid conditions, this helps keep indoor humidity more stable, reduces the load on the air-conditioning system and supports a cleaner, more comfortable indoor environment.

Sorption is the first stage of humidity control . If the home needs lower supply-air temperature or tighter RH control, Ventpro can add Comfort Cooling / active dehumidification after the CASA unit.

Up to 80%

Humidity recovery with CASA Sorption.

≈15–20%

Lower summer indoor humidity under suitable operating conditions.

Less load

Less moisture for the active cooling system to remove.

Performance varies with outdoor conditions, airflow, building characteristics and system operation.

Thailand moisture management

How Sorption stabilises indoor humidity

Ventpro moisture management chart showing relative humidity through Thailand's cool, hot and rainy seasons with a Sorption rotor compared with a traditional heat exchanger

What the graph shows: the Sorption rotor keeps the indoor humidity curve substantially lower and more stable through the hot and rainy seasons.

Product overview

CASA R4-C at a glance

CASA R4-C is the central ventilation unit in a complete Ventpro residential system. It supplies fresh filtered air, extracts stale air, recovers energy and moisture with Sorption, and uses CASA Genius controls to keep ventilation running automatically.

Best for

Homes, apartments and similar spaces where a low-profile ceiling, wall or floor installation is preferred.

Fresh air

Balanced supply to bedrooms and living areas, with extract from bathrooms and utility spaces.

Humidity

Sorption recovers energy and moisture before the fresh air enters the home.

Smart control

CASA Genius can adjust ventilation automatically using the selected control and sensor package.

Extra comfort

Comfort Cooling can be added when the home needs additional cooling or tighter humidity control.

Part of a complete Ventpro residential system

CASA R4-C is the ventilation unit. Ventpro designs the complete system around the home, including filtration, ductwork, silencers, terminals, controls, commissioning and — when required — Comfort Cooling or advanced filtration.

Technical data

Key selection information

The main selection data is shown below. Full performance curves, dimensions and engineering documents are available from the official Swegon product source.

Airflow range

20–92 L/s
72–331 m³/h

Duct connections

4 × Ø160 mm

Installation format

Low-profile / ceiling

Humidity recovery

Sorption humidity recovery for the Thailand product configuration.

Selection: Floor area (homes / apartments under 170 m²) is a reference only. Final selection uses design airflow, external pressure, duct resistance, occupancy and system configuration.

Certificates

CASA R4-C certificates & environmental documentation

Key published certificates and environmental documentation. The Swegon product page remains the source for the current market-specific records.

EPD

Environmental Product Declaration information is available for the CASA product family.

Open official source ↗

Declaration of conformity

Current conformity and product-quality documents are available from the official Swegon source.

Open official source ↗

Quality documentation

Use the Swegon product page for the current quality and market-specific certification records.

Open official source ↗

Documents

CASA R4-C technical documents

Open the main product literature from the official Swegon source. For the complete and latest document library, use the Swegon product page below.

Technical catalogue · PDF · 6.7 MB

Swegon CASA R4-C Technical Data Sheet

Detailed product and selection information for CASA R4-C.

Open at Swegon ↗

Brochure · PDF · 7.51 MB

Swegon CASA R-Series Brochure

Overview of the CASA R-series, controls and residential ventilation functions.

Open at Swegon ↗

IOM manual · PDF · 2.42 MB

Swegon CASA R4-C Installation & Commissioning

Installation, operation and commissioning information for CASA R4-C.

Open at Swegon ↗

Additional document

Type

Open

CASA Genius Quick Guide

IOM / quick reference

IOM manual

Open at Swegon ↗

CASA Genius eManual

Interactive online manual

eManual

Open eManual ↗

Modbus Register List

Engineering

Engineering

Open PDF ↗

Functional Diagram

Engineering

Engineering

Open at Swegon ↗

Document titles follow Swegon’s current product listings. Swegon remains the source for the latest revisions, file sizes and additional engineering, quality or accessory documents.

Looking for every current CASA R4-C document? Open the official Swegon product page for the complete document list.

Compare the CASA range

Need a different airflow or installation format?

R4-C is one part of the CASA family. Ventpro can move up or down in airflow, or use the horizontal H-format where the plant-space layout requires it.

Compact

CASA R3

View R3 →

Medium homes

CASA R5

View R5 →

Horizontal

CASA R5-H

View R5-H →

Full range

CASA Family

Compare all models →

CASA R4-C FAQ

Common questions about CASA R4-C in Thailand

Why is CASA R4-C Sorption relevant for Thailand?
Thailand’s outdoor air carries a high moisture load. Sorption recovers energy and moisture before the fresh air reaches the rooms, reducing the load on the active cooling system.
Does CASA R4-C replace the home’s air conditioning?
No. CASA R4-C provides fresh-air ventilation and energy/moisture recovery. The room air-conditioning system handles the main space cooling load. Ventpro can add Comfort Cooling to the fresh-air system where lower supply-air temperature or tighter humidity control is required.
How is the correct CASA R4-C airflow selected?
Ventpro selects the unit from the required room airflows, occupancy, external pressure, duct resistance and operating strategy. Floor area alone is not enough to select the final unit.
Can CASA R4-C help during PM2.5 season?
Yes. A controlled outdoor-air intake creates a defined filtration point. Ventpro selects the filtration strategy according to outdoor-air conditions, airflow and the final system design.

Is CASA R4-C the right model for your home?

Send Ventpro your floor plan and project information. We can confirm the airflow, compare CASA models and prepare the complete ventilation concept.

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