CZ33319U1 - Variable dual-zone air handling unit - Google Patents

Description

Technical field

The technical solution concerns a variable dual-zone air handling unit intended for central ventilation with heat recovery and hot-air circulation heating and cooling of low-energy and passive houses, housing units, offices, workshops, shops and other operations and civil buildings.

BACKGROUND OF THE INVENTION

The air-handling units produced at the same time are designed as mono-functional with recuperation heat exchangers, designed for even ventilation of the interior environment of buildings, or with the supply air heating. For hot-air central heating, separate circulation units with integrated heaters and / or coolers from lamellar registers are designed. The combination of these two separate functional systems is complicated both in terms of stand-alone regulations and high acquisition costs.

The essence of the technical solution

The essence of the variable dual-zone air handling unit, consisting of a housing, two radial fans, a recuperation exchanger, a heater / cooler register, filters and a circulating air supply, is that the recirculation flap located in the mixing sector between the recuperative counterflow and heater / cooler register In the basic position, the inlet cross-section of the circulating air supply tube closes and, in the opposite end position, the outlet air supply sector of the recuperative countercurrent exchanger closes.

Clarification of drawings

The accompanying drawing shows an exemplary embodiment of a variable dual-zone air handling unit, which in FIG. 1 is shown in a vertical embodiment.

Example of technical solution implementation

The variable dual-zone air handling unit according to Fig. 1 consists of a housing 1 in which an outdoor air centrifugal fan 2, an exhaust air centrifugal fan 3, a recuperative countercurrent) are located exchanger 4, heater / cooler register 5, outdoor air filter 6, exhaust air filter 7 , a circulation air supply tube 8, a circulation flap 9, a mixing sector 10, a circulation air filter 11, a condensate trap, a by-pass flap 13 and a microprocessor control housing 14.

The individual symbols in the drawings indicate:

ei ............ outdoor air inlet £ 2 ............ outdoor air outlet ii ........... exhaust air inlet from the interior

Í2 ............ exhaust air outlet to the exterior

- 1 GB 33319 U1 ci ............ recirculation air inlet from the interior of the building c ₂ ............ recirculation air outlet into the interior

The variable dual-zone air handling unit provides a range of functions in a single integrated unit (dual-zone system) for creating the optimum thermal-moisture microclimate of modern low-energy and passive buildings with separate ventilation, cooling and hot-air heating. The common heater / cooler register is connected to the outdoor condensing unit (split system) with reverse heating / cooling function. The basic advantage of the unit is the universal variability and interchangeability of the position of HVAC sockets according to the investor's requirements, as well as the possibility of under-ceiling installation at minimum depth of the unit.

PROTECTION REQUIREMENTS

Claims (1)

Variable dual-zone air handling unit, consisting of a housing (1), radial fans (2, 3), a recuperative counterflow heat exchanger (4), a heater / cooler register (5), filters (6,7, 11), and further equipped with a supply recirculating air, characterized in that the recirculation flap (9), located in the mixing sector (10) between the recuperative countercurrent exchanger (4) and the heater / cooler register (5), hermetically closes the inlet cross-section of the supply tube (8) of the circulation In the opposite end position, the exhaust air supply sector of the recuperative countercurrent exchanger (4).