Dündar CSM 225.2 Centrifugal Boiler Fan, 3,000 m³, 2,850 RPM

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Brand: Dündar · SKU: 104162204

Dündar CSM 225.2 Centrifugal Boiler Fan, 3,000 m³, 2,850 RPM

Other options

Dündar CSM 215.2 Centrifugal Fan, Boiler Fan, 2,350 m³, 2,860 RPM (out of stock)
Dündar CST 215.2 Centrifugal Boiler Fan, 2,350 m³, 2,860 RPM (out of stock)
Dündar CST 225.2 Scroll Centrifugal Boiler Fan, 3000 m³, 2850 RPM (out of stock)

Product description

Applications

Where the pressure and flow rates of axial fans are insufficient,
in duct applications,
In solid-fuel central heating boilers
Hot air extraction in high-temperature environments, general and industrial buildings,
Warehouses, stockrooms, and storage facilities,
Garages and public buildings, agricultural buildings,
Commercial greenhouses,
Large workshops,
Paint shops,
Factories,
Environments with dust and vapor,
Cooling of industrial machinery

GENERALLY USED IN CENTRAL HEATING BOILER FANS.

MIN 150,000 CALL- MAX. 300,000 CALL

Product Type	V	AC/DC	~	Hz	W	Sound	rpm	m³/h
CSM 225.2	230	AC	1	50	1500	78	2850	3000

MODEL	C	E	H	L	O	P	S	T
CSM 225.2	355	345	386	241	155	125	145	173

CSM Series Radial Fan Casings and Impellers;

Radial casing made from cold-drawn high-quality DKP sheet metal. High corrosion resistance with environmentally friendly electrostatic epoxy powder coating. Galvanized forward-curved radial impeller dynamically tested to ISO 1940 standards; high pressure and flow rate values at the inlet nozzle manufactured to EN 60335-2-80 standards. Cage-protected air inlet against foreign matter ingress. Solid and uniform casing structure, low noise level, right- and left-hand orientation options for installation in the desired direction.

CSM Series Radial Fan Motors;

Aluminum-finned motor casing with high heat transfer capacity; long bearing service life with a rotor balanced to ISO 1940 standards; high operating range for windings with insulation class F, from −40 °C to +70 °C; 230 V / 50 Hz single-phase fan motor, 400 V / 50 Hz three-phase fan motor; certified components compliant with applicable standards.

Things to Consider When Selecting a Fan;

Four parameters must be considered when selecting a fan.

Required air flow rate
Pressure losses
Acceptable Noise Level
Electrical Power Connection Type

The air changes required for the space to be ventilated depend on the intended use of the space, the number of occupants and objects inside, and their activities. The table alongside provides the required air change rate coefficients for different environments.

Environment	Air Change Coefficient
Auditoriums	6-8
Paint ovens	25-50
Safe rooms	3-6
Cinemas and theaters	5-8
Commercial kitchens	15-30
Foundries	8-15
Gymnasiums	4-6
Laundries	10-20
Indoor swimming pools	3-4
Restaurants	8-12
Conference rooms	6-8
Waiting rooms	4-6
Photocopier rooms	10-15
Machine rooms	10-40
Shops	4-8
Dry cleaning	5-15
General manufacturing areas	4-8
Hospitals	8-12
Laboratories	8-15

The amount of air per person in living and working spaces depending on activity level can help determine the required air flow rate.

Air Volume Per Person
Normal activity (non-smoking)	29 m³/h
Normal Activity (smoking)	58 m³/h
Light activity	45 m³/h
Heavy activity (industrial workplaces)	60 m³/h

Based on the information provided above, the required air flow rate is determined as follows.

Q [ m³ / h ] = Air exchange coefficient (1 h) * Room volume (m³)

Q [ m³/h ] = Number of persons × Air flow rate required per person

After determining the required air flow rate for the space, a suitable duct design should be made (taking noise and air velocity criteria into account) and pressure losses should be calculated. Depending on the environment in which the fan will operate, the fan type (axial, radial, roof, smoke exhaust, etc.) should be decided upon, and the appropriate fan should be selected from the fan curve based on the determined flow rate–static pressure pair.

To illustrate the above text and table data with an example:

An office has 5 employees, a ceiling height of 2.6 m, and a floor area of 50 m², giving a volume of 2.6 × 50 = 130 m³. The air change rate from the table for an office is 4–8; let us take 5.

130 × 5 = 650 m³/h air requirement from the space. Assuming normal activity in the office, 5 persons × 29 m³ = 145 m³ air requirement for the occupants, giving a total of 650 + 145 = 795 m³/h air requirement.

Fan selection is also made based on this flow rate requirement.

After completing the flow rate calculations, the installation location of the fan should be determined. Where will the fan be mounted — ceiling, wall, chimney, or ventilation duct? Another consideration is the voltage of the electrical supply to the fan. Continuing with our office example: fans in offices are generally mounted on a wall or glass. If a domestic electricity supply is used, a single-phase fan should be preferred. If it is to be used in an industrial setting, a fan operating on three-phase (380 V) power should be used.

Specifications

Brand	Dündar