Systemair Topvex SR 09, 11, Topvex TR 09-15 Compact Ventilation Units Installation Manual
This document provides essential information for the installation of Systemair Topvex SR 09, 11 and Topvex TR 09-15 compact ventilation units.
1. Safety Warnings
Danger ⚠️
- Always disconnect the unit from the power supply before performing technical maintenance or working with electrical equipment.
- All electrical connections must be made by authorized specialists in accordance with regional regulations and directives.
Warning ⚠️
- Door handles should only be used for installation and maintenance. To ensure the required safety level, they must be detached before operating the unit.
- The unit must be equipped with ductwork or otherwise protected against contact with the fans through the inlet and outlet flanges.
- The unit is heavy. Handle with care during transport and installation. Risk of injury from pinching or crushing. Wear protective clothing.
- Beware of sharp edges during installation and maintenance. Use suitable lifting equipment. Wear protective clothing.
- The connection to the mains supply must be protected by a multi-pole circuit breaker with a gap of at least 3 mm.
Caution ⚠️
- When installing the unit in a cold location, protect all joints with thermal insulation and secure it with mounting tape.
- During storage and installation, connections and duct ends must be capped.
- Do not connect tumble dryers to the ventilation system.
- Do not damage the water heater when connecting water pipes to the heater nozzles. Use a wrench to tighten connections.
Important ℹ️
- This equipment can be used by children aged 8 years and above and persons with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, if they are supervised or have received instruction on the safe use of the appliance and understand the potential hazards. Children should not play with the appliance. Children should not perform cleaning and user maintenance without supervision.
2. Product Information
General Information
This manual applies to the Topvex SR 09, 11 and Topvex TR 09-15 air handling units manufactured by Systemair AB. The available models are:
- Models: SR09, SR11, TR09, TR12, TR15
- Heaters: EL (electric), HWL (low-power water heater), HWH (high-power water heater), or none.
- Left/Right Hand Versions: R (right-hand version), L (left-hand version). Air supply location when viewed from the unit's service side.
- Airflow Control: CAV (constant airflow), VAV (variable airflow = constant duct pressure control), as an accessory.
- M0: Aluminum fan impeller.
This manual contains basic information and recommendations regarding construction, installation, commissioning, and operation. The main purpose is to ensure correct and trouble-free operation of the unit.
3. Technical Specifications
Dimensions and Weight (Topvex SR 09, 11)
Figure 1: Dimensions of Topvex SR 09, 11, mm (left-hand unit shown).
| Model | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| SR09 | 1120 | 600 | 400 | 108 | 104 | 260 |
| SR11 | 1230 | 800 | 400 | 135 | 165 | 215 |
| Model | G | K | L | M | N | Weight, kg |
|---|---|---|---|---|---|---|
| SR09 | 840 | 434 | 195 | 145 | 610 | 370 |
| SR11 | 950 | 487 | 195 | 145 | 610 | 440 |
Dimensions and Weight (Topvex TR 09-15)
Figure 2: Dimensions of Topvex TR 09-15, mm (left-hand unit shown).
| Model | A | B | C | D | E | F | G | H | I |
|---|---|---|---|---|---|---|---|---|---|
| TR09 | 1790 | 1630 | 1120 | 810 | 895 | 104 | 129 | 123 | 129 |
| TR12 | 1930 | 1740 | 1230 | 930 | 965 | 76 | 104 | 141 | 104 |
| TR15 | 1930 | 1980 | 1470 | 1180 | 965 | 76 | 104 | 141 | 104 |
| Model | J | K | L | M | N | O | P | Weight, kg |
|---|---|---|---|---|---|---|---|---|
| TR09 | 105 | 210 | 700 | 300 | 165 | 1030 | 870 | 490 |
| TR12 | 105 | 215 | 800 | 350 | 185 | 1140 | 940 | 580 |
| TR15 | 105 | 236 | 1000 | 350 | 185 | 1380 | 940 | 730 |
Electrical Characteristics
| Model | Fans for 400V 3-phase supply, total power, W | Electrical heater total power, kW | Fuse for 400V 3-phase supply, A | Fuse for 230V 3-phase supply, A |
|---|---|---|---|---|
| SR09 EL | 5062 | 12 | 3x32 | 3x50 |
| SR09 (no heater, HWL/HWH) | 5062 | - | 3x10 | 3x16 |
| SR09 EL MO | 3754 | 12 | 3x35 | 3x50 |
| SR09 (no heater, HWH) MO | 3754 | - | 3x10 | 3x16 |
| SR11 EL | 4902 | 15 | 3 x 35 | 3 x 63 |
| SR11 (no heater, HWL/HWH) | 4902 | - | 3 x 10 | 3 x 16 |
| SR11 EL MO | 6130 | 15 | 3x35 | 3x63 |
| SR11 (no heater, HWH) MO | 6130 | - | 3x16 | 3x20 |
| TR09 EL | 5052 | 9 | 3x25 | 3x40 |
| TR09 (no heater, HWL/HWH) | 5052 | - | 3x10 | 3x16 |
| TR09 EL MO | 3780 | 9 | 3x25 | 3x40 |
| TR09 (no heater, HWH) MO | 3780 | - | 3x10 | 3x10 |
| TR12 EL | 4756 | 12 | 3x32 | 3x50 |
| TR12 (no heater, HWL/HWH) | 4756 | - | 3x10 | 3x16 |
| TR12 EL MO | 3574 | 12 | 3x35 | 3x50 |
| TR12 (no heater, HWH) MO | 3574 | - | 3x10 | 3x16 |
| TR15 EL | 4998 | 15 | 3x35 | 3x63 |
| TR15 (no heater, HWL/HWH) | 4998 | - | 3x10 | 3x16 |
| TR15 EL MO | 6760 | 15 | 3x35 | 3x63 |
| TR15 (no heater, HWH) MO | 6760 | - | 3x16 | 3x20 |
4. Installation
Transport and Storage
Transport and storage of Topvex SR/TR should be carried out in a way that prevents damage to panels, handles, display, etc. To avoid damage to the unit and its components, protection against dust, rain, and snow must be provided. The unit is wrapped in polyethylene as a single block with all necessary components and placed on a pallet for easy transport. Transport Topvex SR/TR units using a forklift (lift from the end sides).
Where and How to Install
The unit should be placed on a level horizontal surface. It is important to level the unit completely before commissioning. It is preferable to place the unit in a separate room (e.g., a utility room, laundry room, attic, or similar locations). Topvex SR 09, 11 can be installed outdoors if protected from atmospheric conditions. An outdoor unit is available as an accessory. Do not disconnect the unit installed in a cold location using the main switch. The electrical cabinet heats up under mains voltage even at low ambient temperatures. When choosing the installation location, consider that the unit requires regular maintenance and inspection doors must be easily accessible. Leave sufficient space for opening doors and removing main components (Figure 1 and Figure 2). Avoid placing the unit directly next to a wall, as low-frequency hum can cause wall vibration, even if the fan has acceptable noise levels. If this is unavoidable, thorough sound insulation of the wall is recommended. The outdoor air intake should be located on the north or east side of the building, at a significant distance from exhaust outlets (kitchen exhaust, laundry room, etc.).
Separating Ventilation Units Topvex TR
Procedure for Separating Topvex SR Unit
When delivered, the two halves of the Topvex unit are joined together. If necessary, they can be separated to facilitate transport to the installation site (see Figure 3 and Figure 4). Remove the heat exchanger, extract the supply air fan and the extract air filter. a) Loosen the cable connectors located on the panel. b. The two halves of the unit are joined by four M10 bolts (one in each corner). c. To remove the end panels, six MRX M6 bolts must be unscrewed using a PH2 bit tool. Reassembly in reverse order.
Figure 3: Left-hand unit
Note: During reassembly, do not mix up cables; see cable markings on the side.
Procedure for Separating Topvex TR Unit
Remove the heat exchanger, extract the supply air fan and the extract air filter. A. Remove the plate. B. Loosen the cable connectors. C. Unscrew seven M10 screws that join the two halves of the unit.
Figure 4: Left-hand unit
Unit Mounting
Figures 5 and 6 show the mounting positions of the unit.
Figure 5: Mounting position (unit with left connection)
Figure 6: Mounting position (unit with right connection)
Table 1: Symbol Description
| Symbol | Description |
|---|---|
| → | Supply air |
| ← | Extract air |
| ↑ | Outdoor air |
| ↓ | Exhaust air |
Installation Procedure
- Prepare the mounting surface. It must be smooth, level, and strong (able to support the unit's weight). Follow regional regulations and directives.
- Move the unit to the installation site. (Warning: Beware of sharp edges during installation and maintenance. Use suitable lifting equipment. Wear protective clothing.)
- Use the supplied leveling feet to level the unit.
- Connect the unit to the power supply using a multi-pole circuit breaker (emergency stop). The power cable runs through the end panel of the unit (Topvex SR 09, 11) or through the top of the casing (Topvex TR 09-15) directly to the connection box. Refer to the accompanying wiring diagram and Section 4.6.6 for additional information. (Warning: Connection to mains supply must be protected by a multi-pole circuit breaker with a gap of at least 3 mm.) (Danger: Always disconnect the unit from the mains supply before performing maintenance or electrical work! All electrical connections must be made by authorized specialists in accordance with regional regulations and directives.)
Vertical Rotor Position (Topvex SR 09, 11)
Check and, if necessary, adjust the vertical position of the rotors after installing the unit to achieve optimal sealing of the brush seals and the rotor frame. Remove the filter for easier access.
Figure 7: Rotor position (left-hand unit)
Adjustment:
- Loosen two bolts.
- Remove cover.
- Adjust rotor height by loosening the rotor shaft's stop screw.
- Adjust the vertical rotor position by adjusting the two bolts on the rotor bracket.
- After adjustment, tighten the rotor shaft's stop screw (3), install the cover (2), and tighten the bolts (1).
Supply Air Sensor (Topvex SR 09, 11)
The supply air sensor is installed in the supply air duct at a distance of approximately 3 m from the unit (Figure 8). Section 4.6.6 specifies the connection terminals in the junction box to which the sensor is connected. Other temperature sensors are installed by the manufacturer. The supply air sensor is included in the unit's scope of supply.
Figure 8: Installed supply air sensor (unit with left connection)
4.6 Connections
Ducts
Figure 9: Connections and main components in units with left-hand connection.
| Position | Description |
|---|---|
| A | Supply air connection |
| B | Extract air connection |
| C | Outdoor air connection |
| D | Exhaust air connection |
| 1 | Supply air fan |
| 2 | Extract air fan |
| 3 | Supply air filter |
| 4 | Extract air filter |
| 5 | Heat exchanger |
| 6 | Rotor motor |
| 7 | Junction box |
| 8 | Electrical heater section |
Thermal Insulation and Condensation Protection
Extract and outdoor air ducts must be properly insulated to prevent condensation. Correct selection and installation of insulation on ducts connected to the unit are particularly important. All ducts installed in cold rooms and areas must be well insulated. Use mineral wool (at least 100 mm thick) with a plastic diffusion barrier as thermal insulation. For areas with very low outdoor temperatures during winter, additional insulation should be provided. Total insulation thickness should be at least 150 mm.
(Caution: When installing the unit in a cold location, protect all joints with thermal insulation and secure it with mounting tape. During storage and installation, connections and duct ends must be capped. Do not connect tumble dryers to the ventilation system.)
Silencers
To prevent noise from spreading through the ductwork, silencers should be installed on both supply and extract air ducts. To prevent noise from spreading between rooms via the ductwork and to reduce noise from the ductwork system itself, it is recommended to install silencers before each supply diffuser.
Electrical Connections
All electrical connections are located in the junction box, which is situated at the front of the unit (Figure 10). The cover is removed after unscrewing four screws (Figure 10). Before commissioning the unit, it is essential to study and understand all safety measures for working with electrical equipment. A diagram of external and internal electrical connections is attached. All external connections for additional equipment are made using the terminals located in the junction box (Section 4.6.6).
Figure 10: Opening the junction box
(Danger: Always disconnect the unit from the mains supply before performing maintenance or electrical work! All electrical connections must be made by authorized specialists in accordance with regional regulations and directives.)
Junction Box, Components
Topvex SR/TR units are equipped with integrated controllers and internal wiring (Figure 11). The figure shows the junction box of Topvex TR 09-15 units. The junction box of Topvex SR 09, 11 has a similar layout and components, with the difference that the electric heater is located in a separate compartment.
Figure 11: Electrical components
| Position | Description |
|---|---|
| 1 | E-28 Controller |
| 2 | Transformer 230 / 24 V AC |
| 3 | Terminals for internal and external components |
| 4 | Terminals for internal wiring |
| 5 | Terminals for connecting the unit to the mains supply |
| 6 | Pump control switch (K2) for supply water pump (only for HW type units, not applicable for EL units) |
| 7 | Automatic fuse |
| 8 | Fuse for electric heater (EL) |
| 9 | Contactor (K3) for electric heater (EL units) |
| 10 | Automatic overheat protection |
| 11 | Manual reset for overheat protection (EL units) |
| 12 | Electric heater regulator EL TTC (for EL units) |
External Connections
| Terminal Block | Description | Notes | |
|---|---|---|---|
| PE | Ground | ||
| N | Neutral (mains voltage) | Applies to single-phase 230V AC networks and three-phase 400V AC networks. | |
| L1 | Phase (mains voltage) | Applies to single-phase 230V AC networks if the unit is rated for such supply. | |
| L2 | Phase (mains voltage) | Three-phase AC network at 400V or 230V. | |
| L3 | Phase (mains voltage) | Three-phase AC network at 400V or 230V. | |
| 1 | G | Auxiliary power supply (pressure sensor. Water valve actuators) | 24V AC. |
| 2 | G0 | Power supply for water valve actuator (common) | 24V AC. |
| 10 | DO ref | Digital output (common) | Ground (24V AC). |
| 12 | DO 2 | Damper actuator for outdoor/exhaust air | Max. 2.0 A; continuous load. 24V AC. |
| WP | L1 | Circulation pump for hot water system | 230V AC. |
| 14 | DO 4 | Cooling pump | 24V AC. |
| 15 | DO 5 | Freon cooler, stage 1 | 24V AC. |
| 16 | DO 6 | Freon cooler, stage 2 | 24V AC. |
| 17 | DO 7 | Alarm output for discrete signals | 24V AC. |
| 30 | Al Ref | Reference voltage for supply air temperature sensor | Common. |
| 31 | Al 1 | Supply air temperature sensor | |
| 40 | Agnd | Reference voltage for universal inputs | Common. |
| 41 | UAI 1/(UDI 1) | Exhaust air pressure sensor | |
| 42 | UAI 2/(UDI 2) | Supply air pressure sensor | |
| 44 | UAI 3/(UDI 3) | Freeze protection sensor for water heater | Use terminal 40 as reference. +24V DC. |
| 43 | DI ref | Delay on/off / Fire alarm (common) | |
| P1:50/P2:60 | A | Exo-line A | Connection for Modbus, Exo-line. |
| P1:52/P2:62 | N | Exo-line N | Connection for Modbus, Exo-line. |
| 74 | DI 4 | Delay off | N/O contact. Use terminal 4 as reference. |
| 75 | DI 5 | Fire alarm | N/O contact. Use terminal 4 as reference. |
| 76 | DI 6 | External stop | N/O contact. Use terminal 4 as reference. |
| 90 | Agnd | Reference voltage for analog outputs | Common. |
| 93 | AO 3 | Control signal for fan actuator, water heater | 0-10V DC. |
| 94 | AO 4 | Control signal for fan actuator, cooling | 0-10V DC. |
Maximum total current load for all digital outputs: 8 A. Connect to external pressure sensor if using pressure control (VAV). These inputs can only be connected to potential-free contacts.
Connection to BMS System
Connections for E283 WEB controller:
- RS485 (Modbus): 50-51-52 or 60-61-62
- RS485 (BACnet): 50-51-52 or 60-61-62
- RS485 (Exoline): 50-51-52-53 or 60-61-62-63
- TCP/IP Exoline
- TCP/IP Modbus
- TCP/IP WEB
- TCP/IP BACnet
5. Control Panel Installation
General Information
The control panel is supplied connected to the Corigo controller, located in the junction box. The cable length is 10 m. To disconnect the control panel from the signal cable, the wires on its rear can be disconnected (Figure 14).
Self-adhesive magnetic strips are included in the delivery to facilitate mounting the panel on a metal surface.
Installation
- Determine a suitable location for mounting the control cabinet. The maximum distance between the control cabinet and the unit is 100 m.
- If necessary, drill two holes in the wall for hanging the control cabinet (center-to-center distance 60 mm) (Item 1, Figure 14).
Figure 14: Electrical connections of the control panel
Dimensions
Figure 13: Control panel dimensions.
| Position | Dimensions, mm |
|---|---|
| A | 115.0 |
| B | 94.0 |
| C | 26.0 |
| D | c/c 60.0 |
| E | 50.5 |
Additional Equipment
Detailed information on additional external equipment (valve actuators, air dampers with electric actuators, E-tool, units mounted on the roof, wall grilles, etc.) is provided in the technical catalog and manuals for the respective products. Detailed information on electrical connections for external components is provided in the attached electrical connection diagram.
