Healthy, comfortable and energy-efficient ventilation
JOTNAR is made of the best materials with first class workmanship.
Vertical FLIXX JOTNAR advantages
- Eco design, the efficiency is up to 90% with counterflow heat exchanger and EPP casing.
- Smart control, it should be the most intelligent control system on the market.
- Flexible installation. 2 types of installation to suitable room.
- EC Constant Airflow Fan, no worry about the external pressure.
- Automatic defrosting / prehating+ supply heating for cold area use.
Up to 83 % Energy Recovery
3D cross-counterflow enthalpy exchanger transfers both heat and moisture — maximising surface area and energy recovery efficiency in both heating and cooling season. Up to 83 % temperature efficiency across the FAV range.
Enthalpy Exchanger (ERV) – Standard
Polymer enthalpy membrane transfers both heat and moisture in all units — standard, no option required. Up to 78 % enthalpy efficiency (per Ecodesign fiche), no dry air in winter, no condensate drain needed.
Constant Airflow EC Motors
EC motors automatically compensate for duct resistance to maintain preset airflow regardless of filter load or ductwork — 4-speed constant flow control. Up to 40 % energy saving vs. AC motors.
A Energy Class
Verified against official EU Energy Labels and Ecodesign fiche (Regulation 1254/2014): all JOTNAR FAV models — FAV-250, FAV-350, FAV-500 — rate Energy Class A.
100 % Auto Bypass
In summer, the motorised bypass damper opens automatically when outdoor temperature is within a configurable comfort band – supplying fresh air without heat exchange for free-cooling ventilation.
Space-Saving Vertical Wall-Mount
Slim wall-mounted cabinet (350–385 mm wide) installs directly in the served room or an adjacent utility space — no ceiling void or horizontal duct run required. Ideal for renovation and retrofit projects where ceiling-mount units cannot be fitted.
SPECIFICATIONS
| Parameter | FAV-250 Advance | FAV-350 Advance | FAV-500 Advance |
| AIRFLOW & PRESSURE | |||
| Rated airflow, m³/h | 250 | 350 | 500 |
| Max. external static pressure, Pa | 130 | 150 | 160 |
| ENERGY RECOVERY (ERV) | |||
| Recovery type | Enthalpy (ERV) | ||
| Temperature efficiency, % | 83 | 77 | 78 |
| Enthalpy efficiency (ERV), % | 78 | 72 | 73 |
| ELECTRICAL & ACOUSTICS | |||
| Fan motor | EC · 4 speeds · Constant flow control | ||
| Power supply | 230 V~ / 50 Hz | ||
| Max. power input, W | 137 | 285 | 440 |
| Sound power level, dB(A) | 37 | 37 | 39 |
| Energy efficiency class | A | ||
| PHYSICAL | |||
| Operating temperature range, °C | −25 to +40 | ||
| Duct connection diameter, mm | 144 | 144 | 196 |
| Unit dimension W×H×D, mm | 350×965×480 | 350×965×480 | 385×1005×624 |
| Net weight, kg | 40 | 40 | 50 |
Note: This data is measur ed under the condition of 70% of the maximum air volume and 50Pa static pr essure.
ELECTRIC PRE-HEATERS (included)
| Parameter | EH FAV-25/35 | EH FAV-50/65 |
| COMPATIBILITY | ||
| JOTNAR FAV models | FAV-250 · FAV-350 | FAV-500 |
| PERFORMANCE | ||
| Airflow range, m³/h | 150–350 | 500–650 |
| Power input, kW | 1.0 | 1.6 |
| Heating power, kW | 1.0 | 1.6 |
| Temp. rise, °C | 10 | 10 |
| ELECTRICAL & CONNECTION | ||
| Duct connection Ø, mm | 145 | 196 |
| Power supply | 220 V~ / 50 Hz | |