OXA-AR — Multifunction series with heat recovery

Multifunction series with heat recovery (OXA-AR). A complete all-in-one supply and extract air handling unit for ceiling mounting: a high-efficiency energy recovery core, water coils for heating and cooling, a filtration stage and a condensate drain pan. It replaces a bulky central plant outright.

The unit handles up to 10,100 m³/h of air, delivers up to 145 kW of heating (from district heating or a boiler house) and up to 70 kW of cooling (from a chiller or condensing unit), while the proprietary AirTS diffuser spreads that volume gently and evenly across the whole space. Its functions can be combined freely with the other options in the series.

Technical data

Parameter	OXA-AR
Fan speed, rpm	0~860
Recirculated air flow, m³/h	0~10,100
Fresh air flow, m³/h	7100
Voltage, V	380±5%
Electrical power, kW	7.4
Current, A	13.0
Recommended mounting height, m	4~21
Control mode	Stepless VAV control
Sound level, dB	<60

Dimensions and drawings

Dimension, mm	OXA-AR
A	2310
B	630
C	600
D	890
E	500
F	1440
G	1450
H	1100
J, K (female thread)	DN50
L (male thread)	DN32
Weight, kg	790
Water volume, l	13.2

Heating performance

Water temperature, °C	Q, kW (5 °C)	Q, kW (10 °C)	Q, kW (15 °C)
90/70	145	134	124
80/60	125	114	104
70/50	104	94	84
60/40	84	72	60

Cooling performance (7/12 °C)

tal, °C	rh, %	Q, kW	ts, °C	mc, l/h
24	50	43	16	22
24	70	71	15	61
30	50	58	16	36
30	70	84	16	76
32	50	70	16	49
32	70	98	17	92

Legend: t_al — inlet air temperature · rh — relative humidity · Q — capacity · t_s — supply air temperature · m_c — condensate flow. Maximum working pressure 800 kPa.