Small Size High Efficiency Series Energy Recovery Ventilator

Compact energy recovery ventilation for projects with restricted installation space.

Overview

The small size high efficiency series energy recovery ventilator provides two-way air exchange in a compact ceiling-mounted package. It introduces outdoor air, removes used indoor air and transfers useful energy between the two streams through the selected plate-type recovery core.

The catalogue describes a cross-counterflow exchange arrangement intended to improve recovery while limiting internal air resistance. The series brings ventilation, filtration, energy recovery and bypass functions together in a cabinet suited to smaller ventilation duties.

Compact size is useful only when the complete installation remains workable. The chosen airflow, service clearance and duct connections should fit the room brief and the available ceiling void, with access retained for filter changes and inspection.

PRODUCT DETAILS

Product Features

Compact ventilation package

The series combines supply and extract functions in one cabinet. Its smaller format is intended for projects that need a manageable equipment size without giving up a planned ventilation route.

Cross-counterflow plate exchange

The plate recovery arrangement uses the difference between the two airstreams to transfer useful energy. Actual recovery behaviour depends on air conditions, airflow and the selected model.

Selectable air quantities

The catalogue includes several compact airflow sizes. A model is chosen from occupancy and room use, followed by a check of the fan pressure available for the installed duct system.

Ceiling and orientation flexibility

The series is intended for ceiling installation and includes alternative mounting orientations. The approved orientation is checked against the chosen model’s connections and maintenance requirements.

Noise-conscious construction

The catalogue describes non-metallic components, moulded production and a compact internal structure aimed at lower operating noise. Equipment position, duct layout and outlet selection remain important to the final room result.

Filtration and bypass functions

Air cleaning and bypass are listed alongside recovery within the series. Filter type and the control sequence for seasonal operation are confirmed in the selected configuration.

MODEL DATA

Technical Specifications

Small High-Efficiency Series · RNXHBQ-TF. Catalogue pages 35–36.

Swipe tables horizontally to view all specifications.

Airflow and Electrical Data
Model	Voltage (V)	External pressure H / M / L (Pa)	Airflow H / M / L (m³/h)	Input power (W)	Current (A)	Weight (kg)
RNXHBQ-D1.5TF	220	75 / 58 / 34	150 / 120 / 80	60	0.5	35
RNXHBQ-D2.5TF	220	85 / 70 / 30	250 / 200 / 165	60	0.5	39
RNXHBQ-D3.5TF	220	90 / 60 / 36	350 / 300 / 200	60	0.6	40
RNXHBQ-D5TF	220	100 / 60 / 30	500 / 400 / 300	110	1.1	43
RNXHBQ-D6TF	220	110 / 70 / 30	600 / 500 / 400	110	1.1	64
RNXHBQ-D8TF	220	120 / 98 / 60	800 / 650 / 500	240	1.8	71
RNXHBQ-10TF	220	125 / 105 / 65	1000 / 800 / 600	300	2.4	83

Recovery and Noise
Model	Cooling recovery H / M / L (%)	Heating recovery H / M / L (%)	Temperature recovery H / M / L (%)	Noise H / L, dB(A)
RNXHBQ-D1.5TF	60 / 63 / 67	70 / 72 / 74	75 / 76 / 77	44 / 22
RNXHBQ-D2.5TF	60 / 63 / 67	70 / 72 / 73	75 / 76 / 77	46 / 22
RNXHBQ-D3.5TF	64 / 66 / 67	68 / 69 / 72	73 / 75 / 77	49 / 25
RNXHBQ-D5TF	60 / 62 / 68	65 / 67 / 72	72 / 75 / 78	51 / 25
RNXHBQ-D6TF	60 / 65 / 64	65 / 68 / 70	72 / 75 / 77	54 / 30
RNXHBQ-D8TF	62 / 65 / 68	70 / 71 / 74	73 / 75 / 77	56 / 32
RNXHBQ-10TF	62 / 65 / 68	70 / 71 / 74	73 / 75 / 77	56 / 31

Dimensions (mm)
Model	L	L1	W	W1	W2	H	H1	C	N (Ø)
RNXHBQ-D1.5TF	860	810	660	710	315	240	88	70	108
RNXHBQ-D2.5TF	860	810	660	710	315	240	88	70	108
RNXHBQ-D3.5TF	860	810	660	710	315	240	88	70	108
RNXHBQ-D5TF	900	850	750	800	350	290	110	70	145
RNXHBQ-D6TF	900	850	750	800	350	290	110	70	158
RNXHBQ-D8TF	1100	930	820	870	400	390	138	70	195
RNXHBQ-10TF	1195	1045	870	920	425	410	148	70	195

H / M / L = high / medium / low speed. Dimension letters match the catalogue drawing. N is the duct connection diameter. Model spelling and all values are kept as printed, including RNXHBQ-10TF and the D6TF cooling-recovery sequence.

WHERE IT WORKS

Applications

The catalogue lists residential rooms, meeting spaces, laboratories, offices, equipment rooms, restaurants and fitness areas. The compact series is relevant when the ventilation requirement can be met by a smaller unit and an appropriate duct layout.

Determine the required fresh air from occupancy and room use, then confirm pressure, noise and access. A compact cabinet should not be selected at the expense of maintenance clearance or the required airflow.

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Apartment or residential ventilation serving a defined room group.
Small office and meeting-room fresh-air systems.
Fitness and hospitality spaces with suitable air characteristics.
Projects with a restricted but serviceable ceiling installation zone.

Illustration of a double-height living room with a staircase and ceiling air slots — **Living Spaces** Concealed air treatment for residential living areas.

Illustration of a modern bedroom with a wide window and ceiling air slot — **Bedrooms** Room ventilation coordinated with comfort and service access.

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From cleaner air
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Small Size High Efficiency Series Energy Recovery Ventilator

Overview