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VMPR/VMPQ

Product catalog summary

Field of Application
The VMPR and VMPQ are volumetric flow controllers designed for supply and return air systems, ensuring constant volumetric flow with optional electrical setpoint adjustment. Adhering to the specified field of application is crucial to avoid mechanical overload and loss of control accuracy.

Usable Volumetric Flow Ranges
VMPR controllers have flow ranges from 45 to 4200 m³/h, while VMPQ ranges from 200 to 8200 m³/h, based on dimensions. The air density considered is 1.2 kg/m³, and functionality is not guaranteed below the minimum flow.

Function
The controllers operate independently without additional energy, using a ball-bearing flap moved by the air current. They are factory-set to a minimum flow and adjustable on-site. Operating temperature is 10 – 50 °C, with a differential pressure range of 50 - 1000 Pa.

Processing
The housing is made from galvanized or stainless steel, with control dampers in aluminum or galvanized steel. The control unit housing is plastic or stainless steel.

Accessories
Accessories include acoustic cladding, flat-bed acoustic cladding, flat flange, rubber lip seal, METU flange, counter flange, tension ring, mineral wool silencer, duct silencer, and electric actuators, enhancing functionality and installation flexibility.

Dimensions
VMPR is available in round designs for duct connections, while VMPQ is rectangular. Specific dimensions ensure compatibility with various installation requirements.

Installation and Maintenance
Proper installation and maintenance are crucial for optimal performance. Controllers must be connected to a power supply and adjusted on-site. Regular maintenance ensures longevity and efficiency.

Technical Specifications
Detailed specifications for VMPR/VMPQ controllers include dimensions and configurations, with tables for measurements such as height, width, and other parameters.

Assembly and Commissioning
Reading the instruction leaflet before assembly and commissioning is crucial for safety and proper handling. Devices are not suitable for non-approved Ex zones.

Disposal
Devices comply with the RoHS directive, requiring proper disposal after decommissioning.

Tests and Standards
Controllers tested according to VDI 6022, DIN 1946, and DIN EN 13779 standards, ensuring compliance with hygienic and health requirements. Standards include EN 1751 for leakage air and EMV 2014/30/EU.

Installation-Maintenance-Service
Minimum distances must be observed to avoid errors. Controllers should be assembled for easy inspection and are unsuitable for air with sticky or greasy components.

Minimum Static Pressure Difference
Graphs and tables illustrate the minimum static pressure differences required for various controller positions and flow rates.

Controller Position and Flow Rates
Tables provide detailed flow rates for different controller positions and nominal sizes, with specific voltage activation requirements.

Flow-Generated and Radiated Noise
Noise levels at different static pressure differences are detailed, with tables showing sound pressure levels across various frequencies.

Radiated Noise with Acoustic Cladding
Noise reduction data with acoustic cladding shows significant noise attenuation across different frequencies.

Insertion Loss
Insertion loss data for duct silencers shows attenuation levels across various frequencies and pressure levels.

Technical Documentation Overview
This document provides detailed technical specifications and ordering information for VMPR and VMPQ volumetric flow controllers, as well as ZSQ mineral wool silencers.

Specifications
VMPR and VMPQ controllers are designed for constant volumetric flow control up to a maximum differential pressure of 1000 Pa. VMPR is round, while VMPQ is rectangular, constructed from galvanized sheet steel with options for stainless steel.

Calculation Formulae
The formula for calculating volumetric flow is provided, with an example calculation for a 200 mm diameter duct resulting in a flow of 452 m³/h.

Order Codes
Order codes for VMPR, VMPQ, and ZSQ products specify type, dimensions, material, volumetric flow set value, acoustic cladding, and actuator options.

Specification Texts
Specification texts describe the construction and optional accessories for VMPR and VMPQ models, emphasizing the need for separate orders for tension rings, counter flanges, and duct silencers.

Key Parameters and Recommendations

Maximum differential pressure: 1000 Pa
Material options: Galvanized sheet steel, stainless steel 1.4301, 1.4571
Acoustic cladding: 20 mm sound-absorbing material
Actuator options: 24 V or 230 V, 3-point or continuous control

Conclusion
This technical documentation provides comprehensive information for selecting and ordering VMPR and VMPQ volumetric flow controllers and ZSQ silencers, ensuring proper installation and functionality in HVAC systems.

Catalog excerpts

Technical documentation SCHAKO | Ferdinand Schad KG Steigstrasse 25-27 D-78600 Kolbingen

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VMPR/VMPQ TECHNICAL DOCUMENTATION Field of application | Useable volumetric flow ranges FIELD OF APPLICATION USEABLE VOLUMETRIC FLOW RANGES Volumetric flow controller for supply and return air systems, suitable for regulating a constant volumetric flow with the option of electrical setpoint adjustment. ATTENTION The VMPR/ VMPQ is an adjusted controller working by the mechanism of action principle. Tampering with the controller, whether manually or mechanically, are prohibited. When a high volumetric flow setting has been selected, the damper leaf must never be closed manually. Otherwise, the...

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VMPR / VMPQ TECHNICAL DOCUMENTATION Function | Processing The constant volumetric flow controller VMPR/ VMPQ works independently without requiring additional energy. The central, ball-bearing flap is moved by the air current. The control unit with control cam, spring and damper is attached to the outside of the galvanised sheet steel housing. The required volumetric flow is set in-factory. An adjustment of the volumetric flow at a later stage is possible (setting cam on housing). The control unit is protected with a cover. The controller can be assembled in any assembly position. --- Operating...

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VMPR/VMPQ TECHNICAL DOCUMENTATION Accessories | Acoustic cladding (-DS 2) made of sound-absorbing, insulating 20 mm material, nonflammable to DIN 4102-17, with sheet steel casing made of galvanised sheet steel (standard), stainless steel 1.4301 (V2A) or 1.4571 (V4A), with cage nuts (M6) (VMPQ only) Flat-bed acoustic cladding (-FD1) - VMPR only Made of sound-absorbing, insulating 3 mm material with sheet steel casing made of galvanised sheet steel (standard), stainless steel 1.4301 (V2A) or 1.4571 (V4A) Flat flange (-FF1/-FF2) - VMPR only on both sides, to DIN 24 154/5, made of the same material...

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VMPR/VMPQ TECHNICAL DOCUMENTATION Dimensions of VMPR / VMPQ | DIMENSIONS OF VMPR / VMPQ VMPR Round design, for duct connection to DIN EN 1506, position-independent installation. VMPQ Rectangular design, for duct connection to DIN 1505, right-hand design The VMPQ is only delivered in right-hand design. If it is necessary to arrange the control unit on the left-hand side, then the VMPQ must be rotated by 180°. Available sizes for VMPR NW Available sizes for VMPQ xL) = with two control units Construction subject to change No return possible

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VMPR / VMPQ TECHNICAL DOCUMENTATION Dimensions of VMPR accessories | DIMENSIONS OF VMPR ACCESSORIES Acoustic cladding (-DS2, insulation = 20 mm) on both sides - VMPR only - according to DIN 24 154/5 Acoustic cladding Flat-bed acoustic cladding (-FD1) Available sizes flat flange (-FF1/-FF2) NW Available sizes for flat-bed acoustic cladding (-FD1) Flat-bed acoustic cladding with counter flange (-GF), loose and tension ring (-SR), loose on both sides (VMPR only) Electric actuator VMPR only Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION Dimensions of VMPR accessories | Packing thickness - duct silencer (-RS) Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION Dimensions of VMPQ accessories | Acoustic cladding (-DS2, 20 mm insulation) Mineral wool silencer (-ZSQ) Construction subject to change No return possible

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VMPR / VMPQ TECHNICAL DOCUMENTATION Prior to assembly and commissioning | Installation-maintenance-service An instruction leaflet containing information on safety, transport, disposal, installation, commissioning and maintenance is enclosed with each SCHAKO product. For safety reasons, this instruction leaflet must be read under all circumstances and completely adhered to. Required distances To avoid unnecessary controller errors, the min. distances according to the following table / drawings must be observed. For combinations of several connection pieces or pieces with fire dampers or silencers,...

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VMPR / VMPQ TECHNICAL DOCUMENTATION Minimum static pressure difference | MINIMUM STATIC PRESSURE DIFFERENCE VMPR / VMPQ Δpst min [Pa] 250 Construction subject to change No return possible

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VMPR / VMPQ TECHNICAL DOCUMENTATION VMPR - controller position (∆pst min) | VMPR - CONTROLLER POSITION (∆pST MIN) VMPR-80 Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPR - controller position (m3/h) | Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPR - Flow-generated noise | Construction subject to change No return possible

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VMPR / VMPQ TECHNICAL DOCUMENTATION VMPR - Radiated noise | Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPR - Radiated noise with acoustic cladding | Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPR-RS - insertion loss | With duct silencer (-RS)

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPQ - controller position part 1 | Construction subject to change No return possible

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VMPR / VMPQ TECHNICAL DOCUMENTATION VMPQ - controller position part 2 | In controller positions 1 and 2, Ap must be >100 Pa. * = Activation in volts for VMPQ with E016 and E046 Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPQ - flow-generated noise part 1 | Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPQ - flow-generated noise part 2 | Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPQ - radiated noise part 1 | Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPQ - radiated noise part 2 | Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPQ - radiated noise with acoustic cladding part 1 | Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPQ - radiated noise with acoustic cladding part 2 | Construction subject to change No return possible

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VMPR/VMPQ TECHNICAL DOCUMENTATION VMPQ-ZSQ - insertion loss | Legend VMPQ-ZSQ - INSERTION LOSS With mineral wool silencer (-ZSQ) (VMPQ with baffles type MWK-OB only) CALCULATION FORMULAE Calculation of the volumetric flow v = Vk x F x 3600 where : Vk (m/s) = duct velocity | F (m2) = area Example for diameter 200 mm Vk = 4 m/s F = 0.0314 m2 V = Vk x F x 3600 = 4 m/s x 0.0314 m2 x 3600 V = 452 m3/h Level correction value / octave Pressure difference minimum static pressure difference pressure loss Effective pressure Inflow area (W x H) Width Insertion loss maximum air volume set value Octave band...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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