Clever Bloom

Why FlowULTRA-R

Scales to 120 m³/h

6 modular speeds cover 13–120 m³/h. Large rooms & schools.

88% peak heat recovery

Enthalpy exchanger captures both heat and moisture.

Radon control included

Reversible operation prevents radon gas infiltration.

Smart app management

Helty Home app + multi-unit WiFi gateway support.

Optional CO₂ sensors

Auto-boost when CO₂ rises. Schools mandate this now.

Hyperventilation mode

120 m³/h peak for fast air changes in large spaces.

Free-cooling summer

Delivers cool outdoor air when beneficial naturally.

Large-format unit

1-metre horizontal body. Two 100mm wall cores.

Extract

Warm, stale, humid air is drawn out continuously — up to 120 m³/h at full boost.

Recover

The enthalpy core transfers up to 88% of the heat — and moisture — to the incoming stream.

Supply

Filtered fresh outdoor air enters already tempered, keeping large rooms comfortable.

Reverse (radon)

The -R variant reverses airflow to create pressure that keeps radon gas out.

Coverage 90 m²+ Built for large open-plan homes (90 m²+), classrooms and commercial rooms — anywhere that needs high air-change rates from a single ductless unit.

Airflow 120 m³/h Six selectable stages from 13 to 120 m³/h — night, four standard steps, and a hyperventilation boost for fast air changes in busy or large spaces.

Heat Recovery 88% Enthalpy counter-flow exchanger recovers up to 88% of the heat and moisture too. Efficiency ranges 88% down to 57% at the 120 m³/h boost.

Acoustic 19.5 dB(A) 19.5 dB(A) sound pressure in night mode. Rises with capacity to 51.5 dB(A) at full boost — plan quieter stages for occupied hours.

Radon Reversible The -R reversible operation creates pressure balance that keeps radon gas out. Add an optional radon sensor to trigger it automatically as levels rise.

Control App + IR Helty Home App over WiFi with multi-unit gateway support, plus IR remote and LED panel. Free-cooling/free-heating, CO₂/IAQ sensor compatibility and Modbus RTU for BMS integration.

Filtration F7 + G1 / G2 Intake ePM2.5 65% (F7) plus Coarse 60% (G1); extract Coarse 70% (G2). Captures pollen, fine dust and PM2.5. The panel flags filter changes automatically.

Electrical 3–39 W 230 V single-phase, 50 Hz. 3–39 W across the six speeds, 0.3 A max current. Runs on a standard supply — no three-phase needed.

Dimensions 1000×320×180 1000 × 320 × 180 mm (W × H × D), 12 kg — a one-metre horizontal unit. Two Ø100 mm wall cores, no ductwork. Mounts horizontally only.

Energy A+ Energy efficiency class A+/A/E across cold, temperate and warm climates. SEC -74.5 / -39 / -16.1 kWh/m²a.

Certification EN 13141-8 Tested and certified to UNI EN 13141-8, the European standard for ductless dual-flow room ventilation units. Order code 1VMC02016.

Helty Home App

Set speeds and schedules and monitor status from anywhere, with multi-unit WiFi gateway support across a site.

IR remote + panel

Battery IR remote and on-unit LED panel for local on/off and speed — no phone required day to day.

Free-cooling / free-heating

Automatically draws in cooler or warmer outdoor air when it benefits the room, bypassing recovery.

CO₂ / IAQ sensors

Compatible sensors auto-boost airflow when CO₂ or pollutants rise — increasingly required in classrooms.

Radon sensor

Add a radon monitor to trigger reversible operation automatically when levels climb.

Modbus RTU rs485

Wire into a building management system for centralised control across multiple units.

01 Phone chat Room size. Sensor needs. Radon test, WiFi coverage.

02 Fit day Engineer drills 100mm cores, mounts. WiFi pairs. 45–60 mins.

03 How-to-use App setup. Sensor configuration. Speed recommendations for occupancy.

04 No survey day All checks at fit appointment.

Included in the kit

Card with QR-code digital manuals
Installation template (FlowULTRA)
MVHR intake & extraction filters (F7 + G1 / G2)
2 × white external grilles
2 × air ducts (Ø100 mm, 500 mm)
Wall mounting kit
IR remote control with batteries
Condensate drain kit

Optional accessories

CO₂ monitor — 4VMC00000902
IAQ monitor — 4VMC00000903
Radon monitor — 4VMC00000901
Pipe adapter 120×60 mm – Ø100 mm ×2 — 1VMC99186
Below-grade wall adapter — 1VMC99135

Filter alert

The panel and app signal when filters need checking. Coarse filters can be vacuumed; fine filters are swapped.

Easy access

The front cover opens by hand — no tools — to reach both intake and extraction filters.

Maintenance-free core

The enthalpy exchanger needs no servicing across its life. Keep grilles clear and you're set.

Replacement filters

Intake — ePM2.5 65% (F7) + Coarse 60% (G1) — FlowULTRA filter set
Extraction — Coarse 70% (G2) — included in filter set
CO₂ / IAQ monitor — 4VMC00000902 / 903

Technical specifications