Swegon CRM User manual

1
CRM
Controllable measurement unit, Ductwork Leakage Class 0 or 4
CRM
Quick Facts
►Type-approved method of measurement
►Ductwork leakage class 0 and 4
►One commissioning constant (K factor) per size
►Manual control (standard)
►With provision for motorised control
►Quick connection enables simple access for cleaning
(accessory)

2
CRM
We reserve the right to alter specifications. 20130522 www.swegon.com
Figure 2.Straight duct length demands, see table below.
Figure 1. Installation.
Technical Description
Design
Circular airflow measurement and commissioning damper.
The CRM consists of a duct section with a damper and
measuring device. The connections are fitted with rubber
seal ring.
The damper has a lockable knob for manual adjustment
and indicators for open and closed damper blade position
are stamped in the damper’s exterior surface.
Inside the damper, there is a measurement unit and a
damper blade. The damper blade is available as a solid blade
with rubber gasket (Ductwork leakage class 4), or as a
perforated blade without rubber gasket (Ductwork lea-
kage class 0). Ductwork leakage classification according
to
SS-EN1751 och VVS AMA 98.
When motorised control is selected, the damper knob shelf
is replaced by a larger actuator support shelf. The motorised
control requires an actuating torque according to the dimen-
sions and weights table on page 7. Standard supporting
shelves are 80 mm high to allow possible duct insulation.
Materials and finish
The entire damper is made of galvanized sheet steel.
Adaptation
The damper can be made of other materials, such as
stainless or epoxy-coated sheet steel. Please contact your
nearest sales representative for further information.
Accessories
Actuator:
Sauter ASM115SF901, ASM124SK001, 24 V AC, standard
actuators depending on size.
Other actuators must be ordered, see actuator table page 7.
Wiring diagrams are available in current Installation -
Commissioning - Maintenance Instructions available at the
Swegon web page.
Knob:
CRTT-1 for manual control.
Quick connection:
FSR. Clamp with quick-acting lock.
Planning
CRM is equipped with components for a differential pressure
method of measurement. In order to meet the specified met-
hodic error, a straight duct length must be arranged upstream
of the damper. See "Methodic Errors" and Figure 2.
When planning for actuator-controlled forcing, the min.
permissible air flow indicated in the diagram must be
taken into account. The methodic error (according to
table) is not applicable to the airflows that are less than
the min. permitted flow.
Installation
Damper is Inserted into the connecting duct and fixed in
position by pop rivets or by means of an FSR clamp. See
Figure 1.
Commissioning
Connect hoses from a manometer to the measurement
nipples. Turn and lock the damper blade at the desired
setting angle For particulars of motorised control, we
refer to the actuator supplier’s instructions. K-factors are
shown on the product’s identification label. The K-factor
can also be found in the relevant commissioning instruc-
tions at www.swegon.com.
Maintenance
Clean the damper whenever needed by means of a
vacuum-cleaner or by wiping surfaces with a cloth.
Environment
The Declaration of Construction Materials is available
from www.swegon.com.
Methodic Errors
Type of obstruction
upstream of the CRM
Length of straight duct (L)
upstream of the CRM
For m2= 5% For m2=10%
One 90° bend. 3 x Ød 2 x Ød
Two 90° bends in the same
plane.
4 x Ød 2 x Ød
Two 90° bends in aligment at
right angles to one another.
4 x Ød 2 x Ød
One 45° damper. 6 x Ød 3 x Ød
One T-piece. 4 x Ød 3 x Ød
m2= methodic error. Method for measurement of airflows in
ventilation Installations.

3
CRM
We reserve the right to alter specifications. 20130522 www.swegon.com
CRM
p
s
Pa
30 40 50 100200 m
3
/h
10 20 30 40 50 l/s
10
20
30
40
50
100
200
300
400
500
50
55
60
65
70 dB
Wtot
L
0%
33%
67%
100%
p
s
Pa
s
50 100 200300 m
3
/h
20 30 40 50 l/s 100
10
20
30
40
50
100
200
300
400
500
50
55
60
65
70 dB
Wtot
L
0%
33%
67%
100%
Table 3 – CRM 5
Sound power level
Correction factor, Kok
Size Mid-frequency (Octave band) Hz
CRM 5 63 125 250 500 1000 2000 4000 8000
5-100 -1 -4 -12 -15 -17 -26 -33 -40
5-125 -7 -3 -8 -13 -17 -25 -31 -39
5-160 -5 -2 -10 -17 -21 -25 -32 -43
5-200 -8 0-12 -19 -21 -26 -33 -40
5-250 -4 -4 -9 -15 -19 -24 -33 -38
5-315 -4 -5 -11 -16 -20 -25 -33 -40
5-400 -3 -4 -11 -14 -17 -23 -33 -37
5-500 0-4 -7 -14 -18 -24 -30 -39
5-630 0-5 -7 -11 -15 -20 -27 -36
Tol. ± 2 2 2 2 2 2 2 2
Sizing diagram, CRM 1, Class 0
Velocity – Pressure drop – Sound level
• The diagrams should not be used for commissioning.
• The diagrams show pressure and flow lines at various
damper settings.
• ∇ = Min. airflow required for obtaining sufficient com-
missioning pressure.
Sizing
Sound power level
Diagrams for the various sizes show the total generated
sound power (Lwtot dB), as a function of airflow and pres-
sure drop across the damper. By correcting
LWtot with the correction factors from the table for CRM 1,
the sound power level for each octave band (LW= Lwtot +
Kok)can be obtained.
Sound data
Table 2 – CRM 1
Sound power level
Correction factor, Kok
Size Mid-frequency (Octave band) Hz
CRM 1 63 125 250 500 1000 2000 4000 8000
1-100 0-1 -7 -12 -17 -24 -32 -40
1-125 1-1 -8 -14 -19 -25 -33 -40
1-160 1-1 -8 -13 -17 -23 -30 -39
1-200 2-1 -7 -13 -16 -21 -29 -37
1-250 1-2 -7 -14 -15 -19 -27 -39
1-315 2-2 -4 -9 -16 -21 -29 -36
1-400 2-2 -8 -12 -13 -20 -29 -35
1-500 1-2 -7 -11 -13 -19 -28 -34
1-630 2-2 -7 -10 -13 -20 -29 -33
Tol. ± 2 2 2 2 2 2 2 2
CRM 1-100 CRM 1-125

4
CRM
We reserve the right to alter specifications. 20130522 www.swegon.com
p
s
Pa
100200300 400 500 m
3
/h
30 40 50 100l/s 200
10
20
30
40
50
100
200
300
400
500
5
0
55
60
65
70 dB
Wtot
L
0%
33%
67%
100
%
p
s
Pa
2003004005001000 m
3
/h
40 50 100200 l/s 300
10
20
30
40
50
100
200
300
400
500
5
0
55
60
65
70
Wtot
0%
33%
67%
100%
L 70 dB
p
s
Pa
s
300400 500 1000 m
3
/h
ss
100200300400 l/s 500
10
20
30
40
50
100
200
300
400
500
50
55
60
65
70
dB
Wtot
L
0%
33%
67%
100%
p
s
Pap
s
Pa
400500 1000 2000 m
3
/h
p
s
Pap
s
Pa
100200300400 500 l/s
10
20
30
40
50
100
200
300
400
500
5
0
55
60
65
L 70 dB
Wtot
0%
33%
67%
100%
p
s
Pap
s
1000200030004000 m
3
/h
200 3004005001000 l/s
10
20
30
40
50
100
200
300
400
500
55
60
65
70 dB
Wtot
L
0%
33%
67%
50
100%
p
s
Pa
100020003000 40005000 m
3
/h
3004005001000l/s2000
10
20
30
40
50
100
200
300
400
500
50
55
60
65
70 dB
Wtot
L
0%
33%
67%
100%
p
s
Pa
200030004000500010000 m
3
/h
400 500 10002000 l/s3000
10
20
30
40
50
100
200
300
400
500
50
55
60
65
0 d
0%
33%
67%
100%
Wtot
L 70dB
CRM 1-160 CRM 1-200
CRM 1-250 CRM 1-315
CRM 1-400 CRM 1-500
CRM 1-630

5
CRM
We reserve the right to alter specifications. 20130522 www.swegon.com
CRM
p
s
Pa
100 200300 400 50010002000 3000 4000m
3
/h
20 30 40 50 100200300400500 1000 l/s
10
20
30
40
50
100
200
300
400
500
1000
50
55
60
65
70 dB
Wtot
L
28%
50%
100%
p
s
Pa
s
20 30 40 50 100200300400500 m
3
/h
3 4 5 10 20 30 40 50 100 200 l/s 300
10
20
30
40
50
100
200
300
400
500
50
55
60
65
70 dB
Wtot
L
28%
50%
10
00%
p
s
Pa
20 30 40 50 100200 300 400 5001000 m
3
/h
5 10 20 30 40 50 100200300 400l/s500
10
20
30
40
50
100
200
300
400
500
1000
50
55
60
65
70 dB
Wtot
L
28%
50%
100%
p
s
Pap
s
Pa
20 30 40 50 100200 300 400 5001000 m
3
/h
p
s
Pap
s
Pa
5 10 20 30 40 50 100200300 400l/s500
10
20
30
40
50
100
200
300
400
500
1000
50
55
60
65
50%
100%
28%
p
s
Pa
40 50 100200300400 500 10002000 m
3
/h
10 20 30 40 50 100200300400500 l/s 1000
10
20
30
40
50
100
200
300
400
500
1000
50
55
60
65
70 dB
Wtot
L
28%
50%
100%
p
s
Pa
100200 300 400500 1000 2000300040005000 m
3
/h
20 30 40 50 100 200 300 4005001000 l/s 2000
10
20
30
40
50
100
200
300
400
500
1000
50
55
60
65
70 dB
Wtot
L
28%
50%
100%
CRM 5-250 CRM 5-315
CRM 5-200
CRM 5-160
CRM 5-100 CRM 5-125
Sizing diagram, CRM 5, Class 4
Velocity – Pressure drop – Sound level
• The diagrams should not be used for commissioning.
• The diagrams show pressure and flow lines at various
damper settings.
• ∇ = Min. airflow required for obtaining sufficient com-
missioning pressure.

6
CRM
We reserve the right to alter specifications. 20130522 www.swegon.com
CRM 5-630
p
s
Pa
2003004005001000200030004000500010000 m
3
/h
40 50 100200300400500100020003000l/s4000
20
30
40
50
100
200
300
400
500
1000
50
55
60
65
70 dB
Wtot
L
28%
50%
67%
100%
p
s
Pa
2003004005001000200030004000500010000 m
3
/h
40 50 100200300400500100020003000l/s4000
20
30
40
50
100
200
300
400
500
1000
50
55
60
65
70 dB
Wtot
L
28%
50%
67%
100%
p
s
Pap
s
Pa
200300400500 1000 200030004000500010000 m
3
/h
p
s
Pap
s
Pa
40 50 100200 300 4005001000 2000 3000l/s 4000
10
20
30
40
50
100
200
300
400
500
1000
50
55
60
65
70 dB
Wtot
L
28%
50%
100%
CRM 5-500CRM 5-400

7
CRM
We reserve the right to alter specifications. 20130522 www.swegon.com
CRM
Figure 3. Dimensions (mm), CRM without actuator.
Size
ØD (mm)
Dimensions (mm) Weight
(Kg)
Torque*) (Nm)
ABH CRM 1 CRM 5
100 305 45 70 0.8 <3 <3
125 356 45 70 1.0 <3 <3
160 356 45 75 1.3 <3 <3
200 372 45 75 1.6 <3 4
250 452 45 75 2.1 <4 5
315 538 45 75 3.0 <4 6
400 582 57 80 5.0 <4 8
500 660 57 80 9.0 <8 12
630 735 57 80 13.0 <8 15
*) The torque moment in the table refers to the force that
must be applied in order to fully close the damper.
Dimensions and weights
Figure 4. Dimensions (mm), CRM with actuator.
Figure 5. Dimensions (mm), CRTT-1 knob.
Actuator tables
• Actuators: Sauter 24 V AC, ASM115SF901 and
ASM124SK001 are standard and kept in stock.
• All other actuators are order items.
2 or 3-point regulation – 24 V AC
Variant Size Torque Designation
Sauter Belimo
CRM 1 100 -315 5 Nm A SM115S F9 01 LM24A
400-630 10 Nm A S M115S F9 01 NM24A
CRM 5
100-250 5 Nm A S M115S F9 01 LM24A
100-400 10 Nm A S M115SK0 01 NM24A
500-630 15 Nm ASM124SK001 SM24A
2 or 3-point regulation – 230 V AC
Variant Size Torque Designation
Sauter Belimo
CRM 1 100 -315 5 Nm A S M115 F 9 01 LM230A-SR
400-630 10 Nm A S M115 F9 01 NM230A-SR
CRM 5
100-250 5 Nm A S M115F 9 01 LM230A-SR
100-400 10 Nm A S M115 SK0 01 NM230A-SR
500-630 15 Nm –SM230A-SR
0-10 V stepless/modulating regulation – 24 V AC
Variant Size Torque Designation
Sauter Belimo
CRM 1 100 -315 5 Nm A SM115S F9 01 LM24A-SR
400-630 10 Nm A S M115S F9 01 NM24A-SR
CRM 5
100-250 5 Nm A S M115S F9 01 LM24A-SR
100-400 10 Nm A S M115SK0 01 NM24A-SR
500-630 15 Nm ASM124SK001 SM24A-SR
Electrical data
Actuators – Supply voltage 24 V AC
Make / Model Ambient temp. Power Consumption
S au ter A S M115S F9 01 -20...+55°C 8.7 VA
Sauter ASM124SK001 -20...+55°C 4.4 VA
Belimo LM24A / -SR -30...+55°C 2.0 VA
Belimo NM24A / -SR -30...+55°C 3.5 VA
Belimo SM24A / -SR -30...+55°C 4.0 VA
Actuators – Supply voltage 230 V AC
Make / Model Ambient temp. Power Consumption
Sauter ASM115F901 -20...+55°C 4.0 VA
Belimo LM230A -30...+55°C 4.0 VA
Belimo NM230A -30...+55°C 6.0 VA
Belimo SM230A -30...+55°C 6.5 VA
B
A
H
H
B
A

8
CRM
We reserve the right to alter specifications. 20130522 www.swegon.com
Ordering key
Product
Commissioning damper CRM c-a -bbb -c
Version
Variant:
1 = Perforated damper blade, Class 0
5 = Solid damper blade, Class 4
Sizes CRM 1:
100, 125, 160, 200, 250, 315, 400, 500, 630
Sizes CRM 5:
100, 125, 160, 200, 250, 315, 400, 500, 630
Control version:
1 = Manual damper setting knob (stocked for CRM-1)
2 = Mounted actuator (incl standard actuator, CRM-1, -5)
4 = Prepared with actuator shelf and shaft end
(CRM-1, -5, stocked for CRM-5)
Accessories
If a non-standard actuator is to be fitted, the actuator
designation must be specified in plain text.
N.B: The actuator type varies with the size of damper.
See actuator selection table, page 7.
Knob CRTT-1
Quick connection FSR c-aaa
Version:
Size: Nominal duct size
Specification example
Swegon’s type CRM circular measurement and commis-
sioning damper with the following functions:
• Ductwork leakage class 0 or 4
• Perforated damper blade
• Type-approved method of measurement
• Fixed measurement tappings
• Lockable damper knob with damper blade position
indicator
• Non-fouling design
Size: CRMc a - bbb -c xx items