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VVM - Turbulent Air Outflow Outlet (adjustable fins)

Dimensions in mm, weight in kg.

These technical conditions introduce the range of manufactured sizes and modifications of outlets with turbulent discharge of air VVM 300, 400, 500, 600, 625, 825 (hereinafter outlets). The data apply for manufacturing, design, ordering, delivering, assembly and operation.

I. GENERAL

1. Description

Manually adjustable outlets VVM with vanes for diversion of air stream are terminal, air-handling elements for air distribution enabling an optimal direction of outlet air stream into climatized or ventilated rooms. Through a turbulent air outlet an intensive mixing with the present air in the room is achieved. Thus the speed and temperature of air are decreased. The outlets are suitable for up to approximately 30 times higher air exchange and for ceiling height from 2.6 to 4.0 m.

2. Design

As per the requirements, outlets are supplied with a square or round front panel.
The piping connection is made through a connection box, either from the upper part or from the side, with round connecting sockets. The box can be, if required, fitted with a regulation flap valve.
The front panels are provided with radial slots with regulation vanes for adjusting required direction of air stream.
Outlets are designed for macroclimatic areas with mild climate as per ČSN EN 60721-3-0, AA4 environment according to ČSN 33 2000-3, and BNV spaces according to ČSN 33 2320.

VVM/C design

Square front panel

VVM/K design

Round front panel

3. Adjustment of vanes

Outside helix	Vertical outlet	Inside helix

4. Flow direction

All vanes adjusted to the outside helix	Half of the vanes adjusted either to the inside or outside helix	The vanes of the opposite quadrant adjusted to the inside or outside helix

5. Dimensions

Front panel - 8 vanes (size 300)

Front panel - 16 vanes (sizes 400, 500, 600, 625)

Front panel - 72 vanes (size 825)

Front panel - 24 vales (size 500)

Front panel - 24 vanes (sizes 600, 625)

Front panel - 48 vanes (sizes 600, 625)

6. Installation, assembly

All sizes are suitable to be built into the ceiling or for installation out of closed ceilings. The connection boxes are fitted with suspension devices. Several examples of possible installation follow.

Installation into ceiling	Installation out of ceiling

7. Suspension methods

Installation above lower ceiling	Installation above grille grated lower ceiling	Installation without lower ceiling

II. PERFORMANCE DATA

V [m3.h-1] volumetric rate of flow for one outlet ∆pc [Pa] total pressure loss for ρ = 1.2 kg.m-3 LWA [dB(A)] acoustic performance level A,B [m] distance between two outlets H [m] ceiling height - from 2.6 to 4.0 m H1 [m] distance between the ceiling and living zone L [m] horizontal + vertical distance (X + H1) vH1 [m.s-1] medium velocity of air flow between two outlets in distance H1 vL [m.s-1] medium velocity of air flow on the wall ∆tP [K] difference between the room air and supplied air temperatures ∆tL [K] difference between the room and flow temperatures in the distance of: L = A/2 +H1 or L = B/2+ H1 or L = C +H1

VVM 300 x 8 vanes
Pressure loss and acoustic performance
Air flow velocity and temperature difference
Alignment of outlets in one or more rows, if B ≥ 4m
Alignment of outlets in more rows, if B = 3m
Corrective coefficients of pressure losses and acoustic performance according to the flap valve adjustment angle
Flap valve adjustment angle	0°	45°	90°
∆pc	x1.0	x1.2	x1.8
LWA	-	-	-

VVM 400, 50, 600, 625 x 16 vanes
Pressure loss and acoustic performance
Air flow velocity and temperature difference
Alignment of outlets in one or more rows, if B ≥ 4m
Alignment of outlets in more rows, if B = 3m
Corrective coefficients of pressure losses and acoustic performance according to the flap valve adjustment angle
Flap valve adjustment angle	0°	45°	90°
∆pc	x1.0	x1.1	x2.0
LWA	-	+1.0	+2.0

VVM 500 x 24 vanes
Pressure loss and acoustic performance
Air flow velocity and temperature difference
Alignment of outlets in one or more rows, if B ≥ 4m
Alignment of outlets in more rows, if B=3m
Corrective coefficients of pressure losses and acoustic performance according to the flap valve adjustment angle
Flap valve adjustment angle	0°	45°	90°
∆pc	x1.0	x1.4	x2.8
LWA	-	+3.0	+6.0

VVM 600, 625 x 24 vanes
Pressure loss and acoustic performance
Air flow velocity and temperature difference
Alignment of outlets in one or more rows, if B ≥ 4m
Alignment of outlets in more rows, if B = 3m
Corrective coefficients of pressure losses and acoustic performance according to the flap valve adjustment angle
Flap valve adjustment angle	0°	45°	90°
∆pc	x1.0	x1.3	x2.8
LWA	-	+3.0	+5.0

VVM 600, 625 x 48 vanes
Pressure loss and acoustic performance
Air flow velocity and temperature difference
Alignment of outlets in one or more rows, if B ≥ 4m
Alignment of outlets in more rows, if B=3m
Corrective coefficients of pressure losses and acoustic performance according to the flap valve adjustment angle
Flap valve adjustment angle	0°	45°	90°
∆pc	x1.0	x1.6	x3.4
LWA	-	+4.0	+9.0

VVM 825 x 72 vanes
Pressure loss and acoustic performance
Air flow velocity and temperature difference
Alignment of outlets in one or more rows, if B ≥ 4m
Alignment of outlets in more rows, if B = 3m
Corrective coefficients of pressure losses and acoustic performance according to the flap valve adjustment angle
Flap valve adjustment angle	0°	45°	90°
∆pc	x1.0	x1.6	x3.4
LWA	-	+2.0	+4.0

III. DATA FOR ORDERING

OUTLET VVM 600/C/V/P/24/R -TPM 001/96.......pieces

IV. MATERIAL, SURFACE PROTECTION

Front panels are made of steel sheet. The surface is coated with white baking varnish, shade number RAL 9010.

Vanes for regulation of air flow distribution are supplied in black as a standard. The vanes can be supplied in white, if this requirement is mentioned with the order.

Requirements for other shades of front panels have to be agreed with the manufacturer in advance.

The connection boxes are made of galvanized steel sheet.

V. PACKAGING, TRANSPORT, TAKE-OVER, STORAGE

Outlets are supplied packed in cardboard packaging with outer layer of contractable sheet. They are transported freely in bulk by common means of transport. If agreed with the manufacturer, outlets can be delivered on palettes.

If no method of take-over is mentioned in the order, handing the outlets over to the carrier will be considered as a take-over.

When handling during transport or storage, the outlets should be protected against mechanical damage and weather conditions. Outlets should be kept in closed stores IB:1 according to ČSN 03 8207, on a wooden floor or grate.

The manufacturer provides warranty of 18 months for outlets, from the date of putting into operation, but 24 months from the dispatch date as a maximum

VI. RELATED STANDARDS, REGULATIONS AND RULES

ČSN 01 0201 . . . . . . . . . . . . . . . . . . Selected numbers
ČSN 03 8207 . . . . . . . . . . . . . . . . . . Protection of metal products against influence of climate during storage
ČSN 12 0000 . . . . . . . . . . . . . . . . . . Air-technology equipment. Terminology.
ČSN 32 2030 . . . . . . . . . . . . . . . . . . Protection against dangerous effect of static electricity
ČSN 33 2000-4-41 . . . . . . . . . . . . . Protection against electrical accident
ČSN 33 2000-5-54 . . . . . . . . . . . . . Grounding and electrical conductors
ČSN 33 2000-6-61 . . . . . . . . . . . . . Procedures of initial revision
ČSN EN 60721-3-0. . . . . . . . . . . . . Classification of environmental condition
Notice No. 48/82. . . . . . . . . . . . . . . Basic requirements for safety at work and of technical equipment
Notice No. 324/90. . . . . . . . . . . . . . Work and of technical equipment safety during construction