Mycond OXA-FK — fresh air unit with heating and cooling

Ventilation, heating and cooling in one lowerable ceiling unit

Air flow rate: 6900 ... 10100 m³/h

Cooling capacity: 19 ... 83 kW

Heating capacity: 50 ... 115 kW

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Mycond

OXA-FK

Mycond OXA-FK covers three jobs that normally need three separate systems: supply ventilation, heating and cooling. Heating reaches 115 kW, cooling 83 kW, air flow 10 100 m³/h — and the lower section drops down for service, so nobody has to work at roof level.

Mycond OXA-FK unit with fresh air damper, water coil and lowerable service section

Why it pays off

Three modes: 100% fresh air, automatic mixing or full recirculation.
Heating 50…115 kW and cooling 19…83 kW from the same coil.
Lowerable design — filter and coil are serviced without a lift.
Droplet eliminator and condensate tray for the cooling season.
Mounting height up to 21 m, noise below 60 dB.
Chilled water schedules 7/12, 8/14 and 10/16 °C.

Ventilation and climate from one casing

The outdoor air damper is controlled automatically: in winter it holds the minimum rate the standard requires, in mild weather it opens fully so the hall is ventilated without spending energy on heating or cooling. The lowerable service section solves the other chronic problem of high-bay buildings — filter changes stop being a scaffolding job.

Wireless control

Mycond OXA wireless control system with OXA-V terminal and OXA-T2 sensors

What the controller actually adjusts

Fresh air damper position — steplessly from full recirculation to 100% outdoor air.
Guide vane position — a tight jet down in winter, a wider pattern in summer.
Fan speed — frequency control across the whole range.
Wireless sensors — temperature and humidity read in the working zone.
One terminal for the whole fleet — up to 1024 units within a 2 km radius.
Protection — phase monitoring, over-voltage and over-current cut-out, anti-freeze, soft start.

Technical data

Model	OXA-FK-I	OXA-FK-II
Fan speed, rpm	0~900	0~860
Supply air, m³/h	0~6900	0~10 100
Voltage, V	380±5%	380±5%
Electric power, kW	0~0.85	0~1.80
Installation height, m	4~13	4~21
Control mode	Stepless VAV regulation
Noise, dB	<60	<60

Heating performance

Water, °C	Model	Q, kW (10 °C)	Q, kW (15 °C)	Q, kW (20 °C)
90/70	OXA-FK-I	70	64	58
80/60	OXA-FK-I	61	54	49
70/50	OXA-FK-I	50	44	38
90/70	OXA-FK-II	115	110	100
80/60	OXA-FK-II	112	102	93
70/50	OXA-FK-II	107	95	84

Cooling performance (7/12 °C)

tₐₗ, °C	rh, %	Model	Q, kW	Condensate, l/h
26	50	OXA-FK-I	28	7.5
28	70	OXA-FK-I	52	40.9
26	50	OXA-FK-II	46	15.4
28	70	OXA-FK-II	83	65.3

tₐₗ — inlet air temperature, rh — relative humidity. Maximum working pressure 800 kPa, maximum supply air temperature 60 °C.

Dimensions

Dimension, mm	OXA-FK-I	OXA-FK-II
A	900	1100
B	1590	1897
C	735	920
D	1230	1442
H	765	935
M (internal thread)	DN40	DN50
N (external thread, condensate)	DN25	DN32
Weight, kg	183	266
Water volume, l	5.8	9.8

Dimensional drawing of the Mycond OXA-FK unit with callouts

DWG drawings are available on request.

Where it is used

Mycond OXA unit under the roof of a sports hall with air spreading below the trusses

Sports hall: units are fixed to the trusses and the air is spread below the roof, away from the court.

sports and multi-purpose halls with high occupancy;
production areas with a mandatory air change rate;
retail and exhibition spaces;
food production;
logistics buildings with picking areas.

We size and lay out OXA systems for industrial, logistics and sports facilities across Europe — send the building geometry, the loads and the air change requirement, and you get a layout with a quotation.

Frequently asked questions about the Mycond OXA-FK

How does it differ from the OXA-FD?

The OXA-FD heats only. The OXA-FK adds chilled water cooling with a droplet eliminator and condensate drain.

How much of the air is fresh?

Anything from 0 to 100% — the damper position follows the air quality setpoint and the outdoor conditions.

How is it serviced at height?

The lower section is lowerable, so the filter and the coil are reached without a lift or scaffolding.

Will it work at 20 m?

Yes — the OXA-FK-II is rated for 4–21 m at up to 10 100 m³/h.