Heat Exchanger

Counter FlowHeat Exchanger:

When a room is cooled or heated, the exhausted cooling/heating energy is recovered by means of Recuperator Heat Exchanger .

Normal Ventilator:

In this mode, no heat exchange occurs between the exhaust and the supply air.
This is used when there is little difference between the indoor and outdoor air conditions. In addition, at night during the hot season, when the outside air temperature drops, the outside air is drawn inside without heat exchange, alleviating the load on the air-conditioning equipment.

Features ofHeat Exchanger:

1.Energy efficiency and ecology

Energy consumption is dramatically reduced by using a counterflow heat-exchange element. Air conditioning load is reduced by approximately 20%, resulting in significant energy savings. Recovers up to 77% of the heat in the outgoing air.

With the cross-flow element, air moves in a straight line across the element. With the counter-flow element , air flows through the element for a longer time (longer distance) ,so the heat-exchange effect remains unchanged .

2.Humidity adjusting effect

In a cooling mode,a highly humid open-air is brought near to a dehumidified room atmosphere and then supplied. In a heating mode, a room humidity is transferred to the dry outside air and then supplied.

3.Facility saving

Thanks to a drastic reduction of load incurred by outside air, you can make air-conditioners more compact in parallel with the recovery of thermal energy.

4.Sound shield effect

The ducts of the unit and the heat exchange element are characteristic of sound shield effect, so that the office and store environment can be preserved.

5.Easy Installation and Maintenance

Counter-flow heat exchange element used for reduced noise and slimmer, more compact body shape.

Adoption of straight air supply / exhaust system:
Duct design is simplified because the air supply / exhaust ducts are straight.
Since each unit can be mounted in reverse position, only one inspection hole is needed for two units:
Two units can share one inspection hole so duct work is easier and more flexible.

Design versatility

Founded in 2000, Persistence ( Shanghai Bojin Business Development Company) is a member of Hong Kong Armada international group, has built its reputation as being a preferred partner with the leading vendors and established its name as a value added distributor and service solution provider for HVAC products (Heating, Ventilation and & Air conditioning) in domestic and abroad markets.
Our factory at Zhe Jiang province. Factory area is around 30,000 m2, with 10 assembly lines, 8 accessory production lines. Persistence(Bojin) possesses completed air conditioner industry chain with more than 200 employees. In addition to our own brand products, we also accept large quantity of ODM and OEM order yearly .Market share is covering America, UK, Russia, Australia, Canada, Libya, Malaysia and Korea.
Persistence(Bojin) has always fostered a serene, well-organized working environment where employee participation is encouraged.
Persistence(Bojin) products are recognized for energy efficiency, certified performance, highly resistant materials, great emphasis on safety in order to make installation as simple as possible.
Main products:
Fan coil unit (FCU)
Heat Recovery Ventilator (HRV)
Energy Recovery Ventilator (ERV)
Residential Ventilator (Supply fan, Exhuast fan and Bi-direction fan etc)
Fresh Air Dehumidifier (FAD)
Thermoelectric cooler (TEC)
Air conditoiner accessory

Co-partner brands:
Daikin,Mitsubishi,Fujitsu,Hitachi and LG

The total success marked by qualities such as punctuality and reliability, has also led to the grouping of business objectives themselves, first of all to be able to cite references in the name of each of its customers.