Application
Special characteristics
Nominal sizes
Decentralised supply and extract air units for room ventilation and for dissipating cooling loads and heat loads. An EC centrifugal fan takes in the fresh air which then flows through the motorised shut-off damper and the F7 filter. Once the fresh air has passed the fan, it flows through the recuperative heat exchanger for heat recovery; it is possible to bypass the heat exchanger in order to pect it, or when it is sensible with regard to energy efficiency. If necessary, the air is heated or cooled by the heat exchanger before it is discharged to the room as a displacement flow. The extract air first passes a G3 filter (that pects the unit), then flows through the heat exchanger (for heat recovery), the extract air fan and the motorised shut-off damper before it is discharged to the outside as exhaust air. Automatic switching to secondary air mode (only with an air quality sensor) if the room air quality is sufficient. The fresh air damper closes, the self-powered secondary air damper opens and the extract air fan is switched off. The unit always starts in secondary air mode, which is more energy efficient.
1 Type
FSL-V-ZAB/SEK Vertical under sill ventilation unit
2 Variant
No entry: standard
HE High degree of heat recovery
3 Heat exchanger
2 2-pipe
4 4-pipe
4 Construction
KM with condensate drain (only with standard variant)
KR with condensate drain on the right (only with variant HE)
KL with condensate drain on the left (only with variant HE)
5 Dimensions [mm]
Width × height × depth
400 × 1800 × 320 (only with standard variant)
604 × 2200 × 260 (only with variant HE)
6 Control system
OR without control system
C3 with FSL-CONTROL III
7 Control function
MA Master
SL Slave
8 Real time clock
Only with control function MA
No entry: without real time clock
T with real time clock
9 Interface
No entry: without interface
MT with Modbus TCP (only with control function Master)
MR with Modbus RTU (only with control function Master)
BI with BACnet IP
BM With BACnet MS/TP
10 Air quality sensor
Only with control function MA
No entry: without air quality sensor
C with CO2sensor
V with VOC sensor
11 Supply air temperature sensor
Z with supply air temperature sensor
12 Outdoor air temperature sensor
Only with control function MA
No entry: without outdoor air temperature sensor
A with outdoor air temperature sensor
13 Heating valve
HV with heating valve
14 Lockshield 3 heating circuit
R with lockshield
15 kVS value 3 heating valve
0.25 (straight-way valve)
0.40 (straight-way valve)
0.63 (straight-way valve)
1.00 (straight-way valve)
F0.50 (pressure-independent control valve)
16 Cooling valve
Only with heat exchanger 4-pipe
KV with cooling valve
17 Lockshield 3 cooling circuit
R with lockshield
18 kVS valve 3 cooling valve
0.25 (straight-way valve)
0.40 (straight-way valve)
0.63 (straight-way valve)
1.00 (straight-way valve)
F0.50 (pressure-independent control valve)
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Contact
We are here for you
Please specify your message and type of request.
Tel.: +43 1 250 43-0 | Fax: +43 1 250 43 34
Contact
Thank you for your message!
Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +43 1 250 43-0| Fax: +43 1 250 43 34