Unit Profile:

1.The heat recovery ventilator adopts advanced energy recovery technology. While exhausting

stale indoor air, it transfers the energy (sensible heat or total heat) contained in the exhaust

air to the incoming fresh air, which is then returned to the room. Thus, it simultaneously

exhausts stale air and supplies fresh air, solving indoor air pollution while keeping indoor

temperature and humidity basically unchanged. The principle is to mechanically supply

outdoor fresh air (after fine filtration) into the room while mechanically exhausting indoor

polluted air at the same time. The two air streams pass through a heat exchanger to

exchange heat and humidity, achieving system balance and air replacement within the

space, resulting in a scientifically controlled air convection process in a closed room. This

ensures 24-hour fresh air in a sealed environment, making the room as comfortable as being

in a green forest. It keeps the house cleaner and quieter, blocks outdoor dust and noise from

entering the room, effectively prevents mold caused by condensation, avoids excessive

energy loss, and maintains moderate indoor humidity, creating a healthy and comfortable

living environment.

2.The series offers a variety of standard sizes with fresh air flow rates ranging from 500 to

30,000 m³/h. For sensible heat recovery units, the heat exchange efficiency reaches 70-

72%. The heat exchanger is made of aluminum foil with a special coating, offering corrosion

resistance, anti-condensation, high strength, and an extra-long service life. For total heat

recovery units, the heat exchange efficiency reaches 61-69%. The heat exchanger material

is a porous fibrous material specially treated to form corrugated heat and mass transfer

elements. This material recovers both sensible and latent heat, suitable for applications

requiring simultaneous heat and humidity recovery.

3.The unit brings fresh outdoor air into the room while discharging stale indoor air through the

heat recovery exchanger, achieving functions such as bidirectional ventilation, air

purification, and energy recovery. It refreshes the indoor air, giving you a comfortable feeling

of being in nature.

4.The unit is suitable for comfort air conditioning systems in conference rooms, laboratories,

office buildings, computer rooms, restaurants, hotels, gymnasiums, shopping malls, etc. It is

also widely used in various air conditioning systems such as electronics, chemical, medical

and health, biomanufacturing, machinery manufacturing, parking garages, and basements,

replacing fresh air fans and exhaust fans. It is more energy-saving, environmentally friendly,

and durable, while enhancing the appearance and style of the air conditioning installation,

creating a more comfortable working and living environment.

5.The unit is also suitable for villas and residences, effectively removing various harmful gases

from indoors, such as formaldehyde, benzene, ammonia, radon, and other toxic substances

released after renovation, while bringing fresh natural air into the room. It protects you from

harmful gases and allows you to enjoy fresh air all day long.

6.When you feel stuffy at home, it is caused by carbon dioxide, odors, and moisture generated

by people and pets. This system promptly removes exhaust air and introduces fresh air,

allowing you to breathe fresh air even at home.

(Product standard: GB/T 21087-2020)

Warning: The TXH series fresh air ventilators are high-voltage, highly specialized mechanical equipment. Proper operation and

maintenance shall be carried out by qualified technical personnel. Non-professionals shall not perform operation or maintenance to

avoid hazards.

The Principle of Heat Recobery Fresh Air System

A central ventilation system with heat exchange works as follows: outdoor fresh air is finely

filtered and mechanically supplied into the room, while indoor stale air is simultaneously

exhausted to the outside through mechanical extraction. As both air streams pass through the

heat exchanger, they exchange heat and humidity, achieving system balance and air

replacement within the space. This creates a scientifically controlled air convection process in

a closed room. It ensures 24-hour fresh air in a sealed environment, making the room as

comfortable as being in a green forest. It also keeps your house cleaner and quieter, blocks

outdoor dust and noise from entering, effectively prevents mold caused by condensation,

avoids excessive energy loss, and maintains moderate indoor humidity, thereby contributing to

your health.

1.Creates indoor air convection, effectively removing various harmful gases and significantly

reducing indoor VOC concentration.

a.Timely exhausts toxic gases such as formaldehyde, benzene, ammonia, radon, and other

pollutants released after renovation, while bringing fresh natural air into the room. This

protects you from harmful gases and provides 24-hour fresh air every day.

b.The feeling of stuffiness at home is caused by carbon dioxide, odors, and moisture generated

by people and pets. This system promptly removes exhaust air and introduces fresh air,

allowing you to breathe fresh air even at home.

c.With directional continuous movement of indoor air, smoke from exhaled breath is expelled

outside without lingering, so you no longer need to worry about second-hand smoke.

2.Continuous 24-hour fresh air exchange with the natural outdoor environment.

a.Your skin and body will enjoy the benefits of fresh outdoor air 24 hours a day, promoting

health and beauty.

b.Once the central ventilation system is in operation, air movement prevents mold from

growing, so you no longer have to worry about mold at home, thereby extending the service

life of furniture and the building.

3.Ensures the health of occupants.

a.The air inlet is equipped with a filtration system that removes dust and bacteria from incoming

outdoor fresh air, allowing you to breathe high-quality fresh air.

b.With the ventilation system installed, you can breathe fresh outdoor air without opening

windows, thus avoiding outdoor noise pollution. You can rest better indoors without being

disturbed by outside noise.

4.Uses balanced supply and exhaust air dampers to control airflow, saving energy and

achieving high ventilation efficiency.

a.The ventilation system quantitatively distributes air volume according to the needs of each

room, reducing energy loss while achieving efficient ventilation results.

Selection Guide

1.Select the appropriate installation type of heat recovery ventilator based on the

structural characteristics of the building.

Selection Guide

2.Determine the required fresh air volume according to the room's purpose, area, and

number of occupants.

3.Select the model and quantity of equipment based on the determined fresh air volume.

Note:

1.When determining the required fresh air volume for a room, comprehensively consider

both the room space and the number of occupants. Calculate the fresh air volume

using both the “required fresh air per person” and the “room air change rate” methods

based on the recommended values in the table above. Take the larger of the two

values as the basis for equipment selection.

2.For special industries, such as hospitals (operating rooms, intensive care units),

laboratories, and industrial workshops, determine the required fresh air volume in

accordance with the relevant design codes for that industry.

Energy conserva on, environmental protec on, and opera ng cost reduc on have become the trend of

the mes.Air condi oning systems account for approximately 30% of building energy consump on,

making energy efficiency a key focus in public power management. Therefore, Gaocun Company provides you

with reasonable, reliable solu ons and products. Details determine quality. We have moved away from

a broad and generic approach, focusing instead on terminal equipment and energy-saving terminal products.

From product R&D, design, technology, manufacturing, installa on and commissioning to a er-sales service,

Gaocun's outstanding corporate culture will bring you an excep onal experience. We look forward to serving you!

Features:

l More Specifications

Airflow range: 500–30,000 m³/h, suitable for factory workshops, laboratories, office

buildings, equipment rooms, restaurants, gymnasiums, large hotels, villas, shopping

malls, and other fitness and entertainment venues.

l Convenient Installation

Units can be suspended, occupying no effective indoor space and without affecting

interior decoration. Floor-standing installation is also available, allowing placement in

equipment rooms or outdoors.

l Lower Noise

Unique structural design applies duct silencer technology to the unit, ensuring perfect

noise reduction.

l More Functions

In addition to basic functions such as bidirectional ventilation, air purification, and energy

recovery, a bypass system is specially built into the unit.

Nomenclature

Technical data

Energy Saving Fresh Air Exchange Unit

Note: The enthalpy recovery rates in the table are for TK-QH total heat recovery units;

the temperature recovery rates are for TK-XH sensible heat recovery units.

380V/50Hz/3N~

Energy Saving Fresh Air Exchange

Horizontal Ceiling Mount Unit

Note: The enthalpy recovery rates in the table are for TK-QH total heat recovery units;

the temperature recovery rates are for TK-XH sensible heat recovery units.

Technical data

380V/50Hz/3N~

Energy Saving Fresh Air

Exchange Floor Mount Unit

Technical data

Note: The enthalpy recovery rates in the table are for TK-QH total heat recovery units;

the temperature recovery rates are for TK-XH sensible heat recovery units.

CUSTOMER FIRST

QUALITY FIRST