HQAIR25S - Heating MSW - Free user manual and instructions

Product type	Ultra-slim energy recovery ventilator (ERV)
Model	MSW-HQAIR25S
Supply voltage	230 V~ / 50 Hz
Rated power	350 W
Protection rating	IPX2
Protection class	I
Noise level	63 dB
Airflow (3 speeds)	320 / 380 / 450 m³/h
Maximum static pressure	380 Pa
Connection diameter	∅ 146 mm
Dimensions (L x W x H)	620 x 850 x 270 mm
Weight	24.4 kg
Coverage area	148 m²
Thermal protection	Yes
Core type	Energy recovery (ERV/HRV)
Filter maintenance	Periodic vacuum cleaning, replace if necessary
Motor maintenance	Annual inspection and cleaning by a professional
Installation	By a professional, circuit breaker mandatory
Safety	Do not use with combustion appliances, avoid humid or corrosive environments
Repairability	Spare parts available through after-sales service

Frequently Asked Questions - HQAIR25S MSW

How to install the HQAIR25S ventilator?

Installation must be carried out by a professional. The unit is attached to the ceiling using threaded rods, washers, and nuts. A circuit breaker is mandatory to prevent electric shocks. Observe safety distances and avoid humid or corrosive environments.

How often should the filters be cleaned?

Filters should be cleaned periodically, especially in a dusty environment. Use a vacuum cleaner to remove dirt. Regular cleaning maintains airflow and reduces noise.

Can I use this device in a bathroom?

No, the device must not be installed in a very humid room like a bathroom. Steam can cause fire or electric shock. The IPX2 rating offers limited protection against splashes, but not against constant humidity.

What to do in case of abnormal noise?

Abnormal noise may indicate a bearing problem or blockage. Cut off the power, check rotating parts and clean filters. If noise persists, call a qualified technician to replace bearings.

What are the three ventilation speeds available?

The ventilator offers three airflow speeds: 320 m³/h, 380 m³/h, and 450 m³/h. You can select them via the supplied controller.

Can this device be used with a boiler or stove?

No, this product cannot be used for ventilation with open combustion appliances (radiators, boilers, stoves). This could create fire or poisoning risks.

How to clean the energy recovery core?

The core (ERV/HRV) generally does not require frequent cleaning. If it becomes dirty, it can be gently vacuumed. Avoid water and chemicals. Consult the manual for specific instructions.

What type of wiring is required?

The connection diagram shows the terminals: CTRL (controller), OFF, 1, 2, -3. Wires are coded: white (WH), black (BK), brown (BN), blue (BU), green (GN). Electrical installation must be performed by a professional.

Can I install the device in a kitchen?

It is not recommended to install the device in a kitchen, especially near smoke and oil vapor sources. Filters and core can clog quickly and pose a fire risk.

How to dispose of the device at end of life?

Do not dispose of the device in household waste. Take it to a collection point for waste electrical and electronic equipment. Plastics are recyclable. Contact your local town hall for the recycling center.

USER MANUAL HQAIR25S MSW

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

This User Manual has been translated for your convenience using machine translation. Reasonable efforts have been made to provide an accurate translation; however, no automated translation is perfect nor is it intended to replace human translators. The official User Manual is the English version. Any discrepancies or differences created in the translation are not binding and have no legal effect for compliance or enforcement purposes. If any questions arise related to the accuracy of the information contained in the User Manual, please refer to the English version of those contents which is the official version.

Technical data

Parameter description Parameter value
Product name		Ultra slim ERV
Model		MSW-HQAIR15S	MSW-HQAIR25S	MSW-HQAIR10S
Rated voltage [V~] / frequency [Hz]		230 / 50
Rated power [W]		250	350	150
Protection class		I
IP protection rating		IPX2
Emitted noise [dB]		65	63	60
Air flow [m3/h]		210 / 300 / 350	320 / 380 / 450	160 / 175 / 210
Max pressure [Pa]		353	380	348
Inlet/outlet size [mm]		∅ 146	∅ 146	∅ 96
Dimensions [width x depth x height; mm]		600 x 860 x 235	620 x 850 x 270	500 x 860 x 200
Weight [kg]		23.6	24.4	18.7
Coverage area [m2]		120	148	70
Thermal protection		√
Heat efficiency [%]	Cooling load	52	57.5	61
	Heating load	78	68	65
Enthalpy efficiency [%]	Cooling load	60	58	60
	Heating load	69.5	68	68

A. Air filter
B. Energy recovery ventilation (ERV) core
C. Air filter
D. Power box

E. Installation bracket

Install and usage

• The installation should be completed by a professional service staff.
- Do not install the unit in the place with high temperature or fire., as it may cause the filter distortion and burn out the motor.
- Do not install the unit in the kitchen which has a lot of smoke. Filter and ERV/HRV core is useless as long as oil fumes attach to it and can easily cause fire.
- Do not install in the place with high humidity such as bathroom etc. The appliance in contact with steam may cause fire and/or electric shock.
- Do not install the appliance in the ceiling with insufficient strength or alternatively straighten the fixing surface before installation.
- Do not install in places which have combustible gas. It may cause fire.
- Caution! This product cannot be used for ventilation with open-type burning appliances (heaters)!
- Do not install the unit and outdoors or with air inlet near the machinery factory or research facilities. Avoid the environment which has acids, alkalis, organic solvents, paints, harmful gases or corrosive composition of gases. It may damage the appliances or cause fire.
• Do not install the air inlet in the kitchen.
• If the air duct is installed tilted outside it may cause water seepage.
• In order to prevent condensation an extension should be installed from outdoor to indoor.
• Install protection of the air ducts, inlets and outlets to prevents small animals getting in.
• During installation following piping should be avoided:

a) Bend
b) Bend many times
c) Reduced diameter

• A circuit breaker should be installed to prevent electric shock or any short circuits.

- Do not reverse the appliance, it may fall down and cause injury.

- After completing installation do a test run and check if any problem occurs (blockage, restrictions, abnormal noise during work).

• The appliance is controlled by the included controller with a knob.

A. Screw rods
B. Washers
C. Rubber washer
D. Screw nut
E. Tighten everything securely

Connection diagram

CTRL - controller

WH - white wire

BK - black wire

BN - brown wire

BU - blue wire

GN - green wire

Maintenance

a) When the ERV/HRV is used for a long time, the filter will be dirty and clogged by dust, it may decreasing the air volume, impact the ventilation, increase the noise. Please clean the filter periodical, especially in a hostile environment (a higher number of dust).

Filter maintenance:

• Unlock the hanging chain under the make the access panel upward
• Please hold the indoor side filter and abstract it horizontally (A on the picture below).
  • Use a vacuum cleaner to suck the attached dirt and dust away.
  • The installation of indoor side filter is following the reversed steps.
• Please hold the outdoor side filter and abstract it horizontally (B on the picture below)
• Please use a vacuum to suck the attached dirt and dust away.
  • The installation is in the reversed steps, please noticed the marked direction.

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

a) The duct fan should be cleaned and check annually (clean motor; parts cannot be exposed to moisture) to make it operate safe and prolong its life.

b) Cut the power supply before any maintenance and wait for the rotating elements to stop.

c) When there is an abnormal noise or significantly efficiency reduction, please check the bearing and replace it if necessary (done only by a qualified service technician).

d) Do not spray the device with a water jet or submerge it in water.

e) Do not allow water to get inside the device through vents in the housing of the device.

f) Do not use sharp and/or metal objects for cleaning (e.g. a wire brush or a metal spatula) because they may damage the surface material of the appliance.

Disposing of used devices

Do not dispose of this device in municipal waste systems. Hand it over to an electric and electrical device recycling and collection point. Check the symbol on the product, instruction manual and packaging. The plastics used to construct the device can be recycled in accordance with their markings. By choosing to recycle you are making a significant contribution to the protection of our environment.

Contact local authorities for information on your local recycling facility.

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

A. barre a vite
B. Rondelle
C. Rondella in gomma
D. Dado a vite
E. Stringere tutto saldamente

Diamond-shaped metallic panel with a central black rectangular cutout, mounted on a black frame (no text or symbols visible)

Technical cross-sectional diagram of a mechanical assembly (no text or labels)

A
B

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Architectural cross-section diagram of a room with diagonal hatching and internal structural elements (no text or labels)

A
B

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

Diamond-shaped metallic panel with a central black rectangular cutout and mounting holes, mounted on a black frame (no text or symbols visible)

For the disposal of the device please consider and act according to the national and local rules and regulations.

CONTACT

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