Primo 355

Description
Characteristics
Downloads
Designation key
Dimensions
Additional characteristics

Description

USE

Inline fans for supply and exhaust ventilation of various commercial and industrial premises requiring powerful air flow. Combines wide capabilities and high performance features of axial and centrifugal fans, providing powerful air flow.

DESIGN

The casing is made of polymer (for models 355 and 400 the casing is additionally reinforced with a metal housing). Due to the conically shaped polymer impeller with specially profiled blades, the air stream circular velocity increases, which results in higher air flow and pressure, as compared to characteristics of standard axial fans. The specially designed diffuser, impeller and airflow rectifier at the fan outlet provide smooth air flow distribution and enable the best combination of high capacity, powerful pressure and low noise. The fan casing is equipped with an airtight terminal box for connection to power mains.


Primo 150, 160, 200, 250		Primo 355, 400

MOTOR

Three-speed high-efficient asynchronous motor. 220–240 V single phase at 50 (60) Hz. Equipped with ball bearings for longer service life (up to 40 000 hours). All motors have thermal overload protection.

SPEED CONTROL

The fans are controlled by either a three-stage CDPE-3 E5 controller or a smooth thyristor controller connected to the maximum speed terminal.

MOUNTING

The fans can be mounted at any place and at any angle within the ductwork system. Several fans may be installed in one system in parallel to attain higher air capacity or in series to increase operating pressure in the system. The fan casing is equipped with fixing brackets for suspended mounting. The fans can be installed using the appropriately sized UM Primo bracket (ordered separately, available for models 355 and 400).

Characteristics

Parameter	Primo 355 (min)	Primo 355 (mid)	Primo 355 (max)	Measurement unit
Speed	min	med	max	-
Voltage	230	230	230	V
Phase	1	1	1	˜
Frequency	50	50	50	Hz
Current	0.60	0.58	0.66	A
Power	126	131	150	W
RPM	1350	1400	1470	min^-1
Maximum air flow	2090	2296	2485	m³/h
Maximum air flow	581	638	690	l/s
Sound pressure level at 3 m	38	38	43	dBА
Motor IP rating	IP20	IP20	IP20	-
Transported air temperature	-25…+55	-25…+55	-25…+55	°С
Ingress protection rating	IPX4	IPX4	IPX4	-
EC motor	no	no	no	-
Outdoor mounting	no	no	no	-
Sound-insulated casing	no	no	no	-
Air duct	for round air ducts	for round air ducts	for round air ducts	-
Connection diameter	355	355	355	mm
Design	mixed-flow	mixed-flow	mixed-flow	-
Type	Supply and exhaust	Supply and exhaust	Supply and exhaust	-
Mounting	Inline	Inline	Inline	-
ErP	2018	2018	2018	-

Documents archieve

Designation key

Series	Duct diameter [mm]	Modifications
Primo	150; 160; 200; 250; 355; 400	US: three-speed switch FR1: smooth speed controller adjustable from 0 to 100 % and power cable with mains plug G1: speed controller, temperature controller with external temperature sensor, power cable with mains plug W1: power cable with mains plug

Dimensions

Model	Overall dimensions [mm]
Model	∅ D	∅ d	A	L	B	B1	C	C1
Primo 355	406	350	451	372	468	566	437	439

Additional characteristics

Sound power level, A-weighted ▼	Total	Octave frequency bands [Hz]								LpA 3 m	LpA 1 m
Sound power level, A-weighted ▼	Total	63	125	250	500	1000	2000	4000	8000	LpA 3 m	LpA 1 m
L_wA to inlet [dBA]	69	50	61	63	60	63	60	56	48	49	59
L_wA to outlet [dBA]	69	56	61	63	61	65	59	54	48	49	59
L_wA to environment [dBA]	63	42	49	61	53	57	50	46	35	43	53

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