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TROX GmbH
Heinrich-Trox-Platz
D-47504 Neukirchen-Vluyn
Telephone +49/ 28 45/ 2 02- 0
Telefax +49/28 45 /2 02-2 65
e-mail trox@trox.de
www.troxtechnik.com
Product Information
Volume Flow Controller Type RN
Installation, Operation, Maintenance
Design changes reserved · All rights reserved © TROX GmbH (12/2007) · Leaflet no. EØ16KC2
Product Application
The volume flow controllers type RN are designed for use
in ventilation and air conditioning systems. Only suitably
painted volume flow controllers should be installed in
systems designed to handle aggressive exhaust air, after
thorough testing has been completed.
Safety Measures
Install professionally and support with secure hanging
brackets.
Packaging, Delivery and Storage
The volume flow controllers are packed in disposable
container.
• Check goods immediately after delivery to ensure that
they are complete and have not been damaged during
transportation. Inform the carrier and TROX immediately
if the delivery is incomplete or damaged.
• Do not expose the controllers directly to the elements
even when packed. Protect from damp, effects of direct
sunlight and dirt.
• Store between –10 ºC and +50 ºC ambient temperature.
• Do not remove packing until just before installation.
Installation and Connection Method
• Choose location so that the scales on the controllers are
accessible.
• The desired volume flow can be read and, if necessary,
set, at an external scale.
• Controller operation not dependent on gravity.
• Ensure air flow is in the direction of the arrow on the label.
• Do not locate controller before bends, near dampers or
other obstructions.
• When conncetion to the main duct, ensure that the length
of the straight branch duct is 1.5 D, otherwise a perforated
plate must be installed as shown.
• For extract air operation, direct connection to the main
duct without a perforated plate is possible.
• Free inlet to controller on extract air application cannot
be used. Fit minimum inlet duct of length 1.5 D, with
suitable fairing to reduce inlet pressure drop.
Duct Connection
The controller spigot diameters are suitable for circular
ducting to DIN EN 1506 and DIN EN 13180 or flange
mounted according to DIN EN 12220 (not by RNS).
The controller should not be drilled under any
circumstances!
• Check connection ducts for debris before installing the
controllers.
• Seal duct connections to controller with approved sealants.
• Heat shrink sleeves ar only to be applied by skilled
operator.
Installation
Duct Connection
Branch Connection
RNS/RN
Duct
Support rod
Duct clamp with
rubber
isolation
When unpacking the controller,
read and take note of
these installation instructions!
Perforated plate,
50 % free area
1.5 D
D
Main duct
2
Connection of Measuring Unit and
Shut Off Damper
When connecting measuring unit VMR and/or shut off
damper, the following directions must be followed:
• Arrange sensor tubes of VMR by 45º offset to controller
and/or damper axis.
• Axis of shut off damper and volume flow controller to be
90º relative to each other.
• Fit restrictor to the control pressure line if the shut off
damper has a pneumatic actuator.
Volume Flow Setting
The controllers are supplied with a nominal volume flow set
at the factory. The required volume flow is to be set by the
customer using the external calibrated scale. Regarding
RNS controller do not adjust at indicator, but use wrench
SW 8.
The accuracy of the scale is approxamediatly ±4 %.
For construction with actuator, the minimum and maximum
required volume flow rates are set. A subsequent modification is possible by change of swing angle limitation.
Under normal conditions, the controllers are maintenancefree when installed in ventilation and air conditioning
systems.
Installation Requirements
Maintenance
Commissioning
Flow Setting V
.
Measuring unit VMR
Measuring unit VMR Shut off damper
RNS/RN
RNS/RN
Scale
Indicator
TROX GmbH
Heinrich-Trox-Platz
D-47504 Neukirchen-Vluyn
Telephone +49 /28 45 / 2 02-0
Telefax +49/28 45 /2 02-2 65
e-mail trox@trox.de
www.troxtechnik.com
Product Information
Volume Flow Controller Type RN
Installation, Operation, Maintenance
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