DataSheet NOTUS S2012010

4 / 24 | Constant Air Volume Controllers
Design
NOTUS-S has a rectangular shaped body made from galvanized steel sheet with 20 mm ange duct connections
at the ends. The control damper blade material is aluminium. The control mechanism on the outer surface of the body
consists of ABS plastic levers and transmissions, steel springs, silicone-oil-lled rotary shock absorber, all covered
by a ABS box. A version with acoustic insulation (NOTUS-SI…) has a 1,9 cm polymere foam layer around the casing,
covered by a galvanized sheet mantle. The casing of NOTUS-S in all types has leakage class C according to EN 1751
(the damper blade is not intended for the shut-off function so the blade leakage is not classied). The types M1
and M2 are delivered with a pre-installed ow adjustment actuator. On type M0 (with manual adjustment)
the actuator kit can be installed additionally. Types M1 and M2 are available only in sizes with height smaller
than 500 mm (single control mechanism).
Controls
Information about controls, installation, maintenance and operation is available in the document “UserManual_NOTUS-S”.
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Fig. 1: Components of the NOTUS-S
Product Parts
1 Casing with insulation (NOTUS-SI) or without (NOTUS-S)
2 Duct connection ange 20 mm
3 CAV control mechanism
4 Flow adjustment dial (with arresting bolt only on NOTUS-S...M0)
5 Adjustment position indicator
6 Adjustment table
7 Actuator (only for NOTUS-S... M1/M2)
Legend
Setup Possibilities
The constant air ow value can be adjusted by a rotating dial within a range dependent on the size of product
manually (type M0) or by an electric actuator (type M1). The actuator position can be controlled continuously
by DC 0 V... 10 V signal. The control setpoint can also be chosen by the actuator from two discrete positions adjusted
by mechanical stops on the actuator (types M1 and M2). The type M0 can be additionally equipped by the actuator kit
and upgraded to the type M1 or M2. The ow volume setup positions with corresponding control voltage values can
be found on the product label. Types M1 and M2 are available only in sizes with height smaller than 500 mm (single
control mechanism). More information on the adjustment of types M0, M1, M2 can be found in the installation manual
„UserManual_NOTUS-S”. The ratio between the minimal and maximal air ow setup value is approx. 1:3.
The control error is ±10 % of the set-point value on the whole control range. The uncertainty of the setup dial scale
is ±4%. With standard-sized rectangular connections it ts into rectangular ducts of 200 mm × 100 mm
to 600 mm × 600 mm (Width × Height).