RDR
CAV Controller
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Table of Contents
Description ........................................................3
Dimensions ........................................................5
Ordering Codes ......................................................6
Technical Parameters ..................................................7
Installation ........................................................11
Maintenance .......................................................13
Transport, Storage and Operation ............................................14
Supplement ........................................................15
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Description
RDR is a constant air volume flow controller with mechanical type of operation (no need for auxiliary energy or
actuation). It is intended to control the constant air flow independently of the duct air pressure in the range of 50 Pa to
250 Pa. The constant air flow value can be set by a shifting dial within a range dependent on the size and configuration
of the product. The cartridge type casing fits into the circular ducts of 80 mm up to 250 mm in diameter. Foreseen
usage in residential premises, offices etc.
Highlights
• Easy adjustment
• Simple and quick installation
• Available from 80 mm to 250 mm
• Self-adjusting with high precision
Design
RDR is a cartridge type controller for insertion into the circular duct. The flow control part is made from polymer
material. The casing material on nominal sizes of ø 80 mm to ø 125 mm is polymer, on nominal sizes of ø 150 mm to ø
250 mm is galvanized steel. A rubber gasket on the casing secures air-tight and stable installation in the duct.
The air flow volume is controlled by the system composed from a dynamic pressure reactive damper, a calibrated
spring and an adjustment mechanism with a position arresting screw.
The controller can operate in horizontal and in vertical installation position.
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Product Parts
Components of RDR
Legend
1 Sleeve with lip seal
2 Shim (according to the airflow)
3 Regulator casing
4 Piece of regulation
5 Air flow setting and fixing screw
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Dimensions
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Ordering Codes
RDR - Size øD - Air flow range Vmin - Vmax
Example of the Ordering Code
RDR-125/50-100
Constant air volume controller with øD size 125 and air flow range adjustable from 50 m³/h to 100 m³/h
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Technical Parameters
Legends
P
s
q
v
L
WA
Pa Pressure drop
m3/h, l/s Air flow volume
dB(A) A-weighted total radiated sound
power level
L
pA
dB(A) A-weighted total sound pressure level
expressed for 10 m2 room absorption
area
L
W
dB Non weighted total sound power level
A-weighted total sound power level LWA and non-weighted octave band sound power level LW dependent on air flow q
and pressure drop P
v
RDR-80/15-50
Pressure drop & sound power level (A-weighted)
Pa
240
200
160
120
40 dB(A)
35 dB(A)
30 dB(A)
s
6 8 10 12 l/s
45 dB(A)
RDR-100/15-50
Pressure drop & sound power level (A-weighted)
Pa
240
35 dB(A)
200
160
30 dB(A)
120
6 8 10 12 l/s
40 dB(A)
80
25 dB(A)
20 30 40 50 m³/h
80
25 dB(A)
20 30 40 50 m³/h
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RDR-100/50-100
Pressure drop & sound power level (A-weighted)
15 20 25 l/s
Pa
45 dB(A)
240
200
160
40 dB(A)
120
35 dB(A)
80
30 dB(A)
50 60 70 80 90 100 m³/h
RDR-125/50-100
Pressure drop & sound power level (A-weighted)
15 20 25 l/s
Pa
240
45 dB(A)
RDR-125/15-50
Pressure drop & sound power level (A-weighted)
Pa
240
200
160
120
35 dB(A)
30 dB(A)
80
25 dB(A)
6 8 10 12 l/s
40 dB(A)
20 30 40 50 m³/h
45 dB(A)
RDR-125/100-180
Pressure drop & sound power level (A-weighted)
28 32 36 40 44 48 l/s
Pa
240
200
160
40 dB(A)
120
35 dB(A)
80
30 dB(A)
50 60 70 80 90 100 m³/h
RDR-150/50-100
Pressure drop & sound power level (A-weighted)
50 60 70 80 l/s
Pa
45 dB(A)
240
200
40 dB(A)
160
200
45 dB(A)
160
120
40 dB(A)
80
35 dB(A)
100 120 140 160 180 m³/h
RDR-150/100-180
Pressure drop & sound power level (A-weighted)
28 32 36 40 44 48 l/s
Pa
240
50 dB(A)
200
160
45 dB(A)
120
35 dB(A)
80
30 dB(A)
180 200 220 240 260 280 300 m³/h
120
40 dB(A)
80
100 120 140 160 180 m³/h
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RDR-150/180-300
Pressure drop & sound power level (A-weighted)
50 60 70 80 l/s
Pa
240
50 dB(A)
200
160
45 dB(A)
120
40 dB(A)
80
180 200 220 240 260 280 300 m³/h
52.5 dB(A)
RDR-160/100-180
Pressure drop & sound power level (A-weighted)
28 32 36 40 44 48 l/s
Pa
240
50 dB(A)
RDR-160/50-100
Pressure drop & sound power level (A-weighted)
50 60 70 80 l/s
Pa
45 dB(A)
240
200
40 dB(A)
160
120
35 dB(A)
80
30 dB(A)
180 200 220 240 260 280 300 m³/h
RDR-160/180-300
Pressure drop & sound power level (A-weighted)
50 60 70 80 l/s
Pa
240
50 dB(A)
52.5 dB(A)
200
160
45 dB(A)
120
40 dB(A)
80
100 120 140 160 180 m³/h
RDR-200/100-180
Pressure drop & sound power level (A-weighted)
50 60 70 80 l/s
Pa
240
200
45 dB(A)
160
120
40 dB(A)
80
35 dB(A)
200
160
45 dB(A)
120
40 dB(A)
80
180 200 220 240 260 280 300 m³/h
RDR-200/180-300
Pressure drop & sound power level (A-weighted)
50 60 70 80 l/s
Pa
240
200
160
120
80
50 dB(A)
45 dB(A)
40 dB(A)
52.5 dB(A)
180 200 220 240 260 280 300 m³/h
180 200 220 240 260 280 300 m³/h
10/16 | RDR
RDR-200/300-500
Pressure drop & sound power level (A-weighted)
Pa
240
200
160
120
90 100 110 120 130 l/s
52.5 dB(A)
50 dB(A)
45 dB(A)
80
40 dB(A)
300 350 400 450 500 m³/h
55 dB(A)
RDR-250/300-500
Pressure drop & sound power level (A-weighted)
Pa
240
90 100 110 120 130 l/s
52.5 dB(A)
55 dB(A)
RDR-250/180-300
Pressure drop & sound power level (A-weighted)
50 60 70 80 l/s
Pa
240
50 dB(A)
200
160
45 dB(A)
120
40 dB(A)
80
180 200 220 240 260 280 300 m³/h
RDR-250/450-800
Pressure drop & sound power level (A-weighted)
Pa
240
140 160 180 200 220 l/s
55 dB(A)
57.5 dB(A)
50 dB(A)
200
160
45 dB(A)
120
40 dB(A)
80
35 dB(A)
300 350 400 450 500 m³/h
200
160
120
80
52.5 dB(A)
50 dB(A)
45 dB(A)
40 dB(A)
500 600 700 800 m³/h
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Installation
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Maintenance
No maintenance is required for the product.
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Transport, Storage and Operation
15/16 | RDR
Supplement
Any deviations from the technical specifications contained herein and the terms should be discussed with the
manufacturer. We reserve the right to make any changes to the product without prior notice, provided that these
changes do not affect the quality of the product and the required parameters.
Current information on all products is available on design.systemair.com.
Systemair DESIGN • 2021-02-09 • HandBook_RDR_en-GB • 42CE3F56-638D-4D82-B230-110EEBBE79C6
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