IRE 250 C1 | H. Östberg

IRE 250 C1 Updated: 2023-05-17

7900095 -

IRE 250 C1 aut tc

Insulated duct fan with circular connections.
Equipped with 50 mm of thermal and acoustic insulation makes it ideal for handling cold air.
Designed for high pressure and long, complicated duct runs.
The design prioritise functionality, durability and longevity.
Impeller with forward curved blades.
The external rotor motor has maintenance-free sealed ball-bearings.
Integrated motor protection.
Junction box has enclosure class IP 54.
For speed control a transformer or electronic speed controller can be connected.
The housing is manufactured from galvanized sheet steel.
Duct connections are equipped with rubber seals.
The fan is intended to be installed in a duct system.
A duct connected fan can be installed outside or in damp environments.
To comply with the ErP 2018 regulation, a local demand controller must be used.

Generating diagrams...

Variable control

User input

Air Flow (l/s)

External static pressure (Pa)

Data

Air Flow (l/s)

External static pressure (Pa)

Power (W)

Speed (r.p.m.)

Current (A)

Voltage (V)

230

Efficiency (%)

SFPv (kW/m3/s)

Change the "User input" by dragging the point, or by entering new values.

Generating diagrams...

	IRE 250 C1 aut tc 7900095
Parameter	Value	Unit
Voltage	230	V
Phase	1	~
Frequency	50	Hz
Power	256	W
Current	1.13	A
Speed	2120	r.p.m.
Max. temperature of transported air	50	°C
Max. temperature of transported air when speed controlled	50	°C
Sound pressure level at 3 m	42	dB(A)
Weight	14.4	kg
Enclosure class	44	IP
Insulation class, motor	F
Capacitor	5	µF
Duct connection	250	mm
Max. flow @ 0Pa	275	l/s
Max. pressure	442	Pa
Voltage range	220-240	V

Parameter	Value	Unit
(a) Manufacturer	Östberg	-
(b) Model code	IRE 250 C1	-
(c) SEC average climate	-23.9	kWh/m²
SEC average climate, class	C	-
SEC warm climate	-8.4	kWh/m²
SEC warm climate, class	F	-
SEC cold climate	-51	kWh/m²
SEC cold climate, class	A+	-
(d) Declared type	RVU / UVU	-
(e) Type of drive	Multi-speed drive (accessory)	-
(f) Type of heat recovery	None	-
(g) Thermal efficiency	None	%
(h) Max. flow rate (@100Pa)	932	m³/h
(i) Power at max. flow rate	246	W
(j) Sound power level	47	dB LwA
(k) Reference flow rate	0.275	m³/s
(l) Reference pressure difference	50	Pa
(m) SPI	0.27	W/(m³/h)
(n) Type of control/ctrl factor	Local demand control(accessory)/0.65	-
(o) External (and internal) leakage rate	0.38 (N/A)	%
(p) Mixing rate	N/A	-
(q) Visual filter warning	N/A	-
(r) Instruction supply/exhaust grilles	See manual	-
(s) Disassembly instructions	fsp.ostberg.com	-
(t) Airflow sensitivity	N/A	-
(u) Air tightness	N/A	m/s
(v) AEC	175	kWh
(w) AHS average	2830	kWh
AHS warmer	1280	kWh
AHS colder	5536	kWh