Home >  Air-condition elements >   VASM

VASM - Turbulent Air Outflow Anemostat (adjustable fins)

Dimensions in v mm, weights in kg.

These technical conditions define a series of the manufactured sizes and versions of ceiling-mounted adjustable whirling anemostats (hereinafter anemostats) VASM 315, 400, 630. They apply to manufacturing, designing, ordering, deliveries, installation and operation.

I. GENERAL

1. Description

Adjustable whirling anemostats represent a terminal air-conditioning element used to distribute large amounts of air with high temperature difference ( ranged between -10 and +15 °C ). By adjusting the angle of air outlet (from horizontal outlet for cooling, through deflected outlet for isothermal air, to the vertical outlet used for heating), intensive mixing of inlet air with the existing is provided. Anemostats are supplied with diffusers.

They are suitable for ceiling heights of over 3.8 m.

2. Design

Anemostats consist of a round front panel with adjustable blades, diffuser, connection box for either horizontal or vertical connection, and possible power unit.

Side or upper connection to piping can be made with round connection sockets via the connection box, or without the connection box from above to the front panel.

Anemostats are intended for installation in environments protected from weather conditions, class 3K5, according to ČSN EN 60 721-3-3 and in BNV rooms according to ČSN EN 1127-1.

Adjustment of blades for cold inlet air - horizontal outlet	Adjustment of blades for isothermal inlet air - outlet in 45° direction
Adjustment of blades for hot inlet air - vertical outlet
	Adjustment of blades is done: manually with two-position power unit with continuous position control power unit The control elements are located at the front panel.

3. Dimensions

horizontal connection VASM… / V	vertical connection VASM… / S
separate front panel (without connection box)

4. Weights

5. Location, Installation

Front panel is attached to connection box with bolts. Connection boxes are equipped with suspension lugs.

Several examples of connection methods are given in the following:

horizontal connection

anemostat lower edge ca. 300 mm under lower ceiling (installation suitable for continuous adjustment of flow direction)

vertical connection

installation into lower ceiling (installation suitable for two permanent flow directions - horizontal and vertical)

out of lower ceiling (installation suitable for continual adjustment of flow direction)

II. TECHNICAL DATA

6. Electrical Elements, Wiring Diagram

6.1. LM 230-FS, LM 230-F Power Unit Wiring Diagram

with position signalling	without position signalling

6.2. LM 24-FS, LM 24-F Power Unit Wiring Diagram

with position signalling	without position signalling

6.3. LM 24-SR-F Power Unit Wiring Diagram

with continuous position control

6.4. NM 230-F Power Unit Wiring Diagram

without position signalling	auxiliary switching contact SN 1 for position signalling

6.5. NM 24-F Power Unit Wiring Diagram

without position signalling	auxiliary switching contact SN 1 for position signalling

6.6. NM 24SR-F Power Unit Wiring Diagram

with continuous position control

7. Calculation and Determination Quantities

Size	315		400		630
Version with Connection	connection box
	Horizontal	Vertical	Horizontal	Vertical	Horizontal	Vertical
Vmax [m3.h-1]	900	1000	1300	1600	2200	2400
Vmin [m3.h-1]	350	500	500	550	800	1000
LWA max [dB(A)]	53	49	57	56	55	53
LWA min [dB(A)]	27	31	26	27	25	28
Sef [m2]	0,03		0,05		0,1
V [m3.h-1] - volumetric flow rate for one anemostat   ∆pc [Pa] - total pressure loss at = 1,2 kg.m-3   LWA [dB(A)] - acoustic power level   A, B [m] - distance between two anemostats   X [m] - distance from anemostat centre to wall   H [m] - distance between anemostat lower edge and floor   H1 [m] - distance between anemostat lower edge and living zone   L [m] - horizontal + vertical distance (X + H1)   Lp [m] - depth of air flow reach   wH1 [m.s-1] - mean flow velocity between two anemostats in H1 distance   wL [m.s-1] - mean flow velocity at wall   ∆tP [K] - difference between inlet air temperature and room air temperature   ∆tL [K] - difference between flow air temperature and room air temperature in the distance of: L = A/2 + H1 or L = B/2 + H1 or L = X + H1

Acoustic Powers and Pressure Losses

1. VASM 315
2. VASM 400
3. VASM 630
4. Temperature coefficient
	Volumetric flow rate: V = 3600 . wef . Sef [ m3.h-1 ]
5. VASM 315 flow velocity
6. VASM 400 flow velocity
7. VASM 630 flow velocity
8. Maximum depth of air flow reach 45° - outlet
9. Maximum depth of air flow reach - 60° outlet
10. Maximum depth of air flow reach - 75° outlet
11. Maximum depth of air flow reach - vertical outlet

Example

Data input:
Anemostat VASM 315 - horizontal connection
V = 600 m^3.h^-1

output:
cooling - horizontal ∆t_p = - 7 K
heating - vertical ∆t_p = +10 K
H₁ = 1,8 m
A = 2,8 m
X = 1,2 m

Diagram 1:
∆p_c = 26 Pa
L_WA = 39 dB(A)

Diagram 4:
∆t_L / ∆t_p = 0,038
∆t_L = -7 . 0,026 = - 0,266 K
L (at wall) = X + H₁ = 3 m

Diagram 5:
w_H1 = 0,15 m.s^-1 (between anemostats)
w_L = 0,24 m.s^-1 (at wall)

Diagram 11:
maximum depth of reach:
heating - vertical exhaust:
L_p = 3,4 m

III. ORDERING DATA

ANEMOSTAT VASM 400 / V - TPM 017/ 01 .01

IV. MATERIAL

The parts of anemostat front panels are made of steel sheet, except for the diffuser of anemostat size 630 which is made of aluminium sheet. The surface of front panels with diffusers and adjustable blades is finished with white baking varnish of RAL 9010 colour shade. Other shade requirements have to be agreed with the manufacturer in advance.

Connection boxes are made of zinc-coated steel sheet.

V. PACKING, TRANSPORT, ACCEPTANCE, STORAGE

Anemostats are transported in cardboard packages in bulk on covered transportation means.

As agreed with customers, anemostats may be transported on pallets or in crates. When handled during transport and storage, anemostats must be protected against mechanical damage.

Provided no method of acceptance is determined in the order, anemostats will be considered accepted when being handed over to the carrier.

Anemostats must be stored in covered rooms, in environments free from aggressive vapours, gases and dust.

Temperature range of -5 to +40 °C and relative humidity up to 80% must be kept in the storage rooms.

The manufacturer provides anemostats with an 18-month guarantee after having been first put into operation, however 24 months after the date of dispatching.

VI. RELATED STANDARDS, REGULATIONS AND PROTOCOLS

ČSN 33 2000-3 . . . . . . . . . . . Electrical-engineering regulations. Determination of basic characteristics.
ČSN 33 2000-4-41 . . . . . . . . Electrical shock protection.
ČSN 33 2000-4-47 . . . . . . . . Electrical shock protection provisions.
ČSN 33 2000-5-54 . . . . . . . . Grounding and electrical conductors.
ČSN EN 60079-10. . . . . . . . . Electrical-engineering regulations. Regulations for electrical equipment
ČSN EN 60079-14. . . . . . . . . in environment of flammable gases and vapours explosion danger
ČSN EN 1127-1 . . . . . . . . . . . Explosive equipment. Prevention and protection against explosion.
ČSN 33 2030 . . . . . . . . . . . . . Protection against dangerous effects of static electricity.
ČSN EN 60335-1. . . . . . . . . . .Safety of household and other electrical appliances. Part 1: General requirements.
ČSN EN 60 721-3-3 . . . . . . . .Classification of environmental conditions.
ČÚBP Reg. No.48/82 Coll. . . Basic requirements of safety at work and of technical equipment
ČÚBP Reg. No.324/90 Coll. . Safety at work and of technical equipment at building works.
Decree No.50/78 Coll.. . . . . . Professional competence in electrical engineering.