This product is discontinued

X-Topvex SR03-R-CAV

Item Number: 2258

• Low energy use

- Energy efficient plug fans with EC motors

• Efficient rotating heat recovery wheel

- No need of water drainage

- Automatic summer operating

• Integrated/pre-programmed control system

- Efficient energy saving functions

- Built in week program with holiday schedule

• Constant airflow- or duct pressure- controlling

• Large inspection doors for easy maintenance

• Manufactured in Aluzinc plated sheet metal

• Factory tested

Topvex SR is a series of efficient ventilation units designed for offices, shops, schools, daycares centre or similar premises. The units are especially designed to meet the coming energy requirements and have therefore a very low energy use and a high-efficiency rotating heat exchanger. To simplify the installation and commissioning the units are included with control system and pre-configured.

The units casing is made up from double-skinned aluzinc sheet metal, AZ 185, with internal mineral sound/thermal insulation. To avoid sharp edges bevelled corners from cast aluminium are used. Two large inspection doors facilitate inspection and maintenance.

Supply and extract air filter are mounted in guide rails. The guide rails have a quick release system and fitted with sealing stripes to provide optimal sealing against the filter.

The separate electrical/ re-heater box facilitate services.

All electrical connections are done at one place in the electrical box.

With the integrated control system it is possible to supervise/control the airflow, duct pressure, temperatures, heating/cooling recovering and the ventilation systems operating time. Topvex SR has also other energy saving functions like free cooling, cool recovering, and season related temperatures and airflow controlling.

Topvex SR is as standard equipped with Exoline and Modbus communication via RS-485 and a built-in WEB server via TCP/IP.

LON communication available as option, contact your nearest Systemair Company for more information.

The functions and functionality in Topvex SR gives you all that are needed to create an indoor environment with the highest comfort and to the lowest operating costs. Save the global environment by using Topvex SR.

Ordering code:

- Model:                              SR03, SR04 and SR06.

- Heating coil:                   EL



(Hot water coil-low power).


(Hot water coil-high power).


(No heater). Example on unit without reheater: Topvex SR03- L-CAV.


Right or Left model:    R



(Left). The side where the supply air is located when viewed from access side).

- Airflow control:            CAV

(Constant air volume).


(Variable air volume = constant duct pressure control).

Technical parameters

Frequency 50 Hz
Voltage (nominal) 230 V
Phase(s) 1~
Recommended fuse 10 A
Enclosure class IP23
Speed regulation Stepless
Supply fan
Input power (P1), supply fan 507 W
Supply air filter
Filter class, supply air F7
Extract air filter
Filter class, extract air F5
Heat exchanger
Exchanger type Rotating
Heating type None
Return fan / Extract fan
Input power, extract fan 507 W
Chassis size 03
Fan control CAV, air flow control
Installation placement Horizontal
Supply side Right
Dimensions and weights
Weight 214 kg
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