BS
19Pages

Catalog excerpts

TECHNICAL INFORMATION BS RECTANGULAR VAV UNIT Variations 1333 BSD Galvanised rectangular VAV unit with counter rotating blades, supplied with an electronic actuator and aluminium differential pressure sensor This VAV unit can be applied for regulating constant or variable air volumes based on air quality and/or temperature. The aluminium blades are equipped with an airtight seal and maintenance free bearings. Housing meets Class C following EN 12237, blades meet Class 2 following EN 1751. Also available with insulation and external sound attenuators (BSD). Aluminium extruded differential pressure sensor with an operating range 1-10 m/s Class C housing following EN 12237 Air volume controlled actuator with integrated display and controls (no external equipment required) ail® SQUARE DUCT SOUND FRIENDLY ACCESSORIES USSIL Square galvanized duct silencer for installation in between ducts.

Open the catalog to page 1

Open the catalog to page 2

MEASUREMENT OF THE VOLUMETRIC AIR FLOW RATE - GRADA G1 ACTUATOR • the setpoint value signal Y depends on the chosen mode, i.e. 0-10 V DC or 2-10 V DC. The lower and upper limit correspond to V̇min and V̇max respectively. Speciality of input mode 2-10 V DC: in the range of Y = 0-0.8 V DC the override command Close will be detected. • the output/feedback signal U represents the actual ﬂow and follows the selected mode of operation (0-10 V DC or 2-10 V DC). The signal U is proportional to the selected V̇nom value. • V̇nom: nominal volume ﬂow rate ([m³/h] or [l/s]) corresponding at a sensor...

Open the catalog to page 3

• Duct velocities larger than 1.5 m/s are recommended, and should not go below 1 m/s. At tower air velocities measurement accuracies cannot be guaranteed. • The above volume flow rate accuracy applies only to situations with a straight upstream section of the duct according to ISO 5219 / EN 1751, and measured according ISO 3966. The actuators show a measurement error of <5% with respect to ISO 3966 in the recommended working range. For upstream 90° bends a minimum distance of straight duct as shown in the figure below is needed to have negligible effects on volume flow rate measurements....

Open the catalog to page 4

SOUND PRESSURE LEVEL AT DIFFERENTIAL PRESSURE OF 100 Pa SOUND PRESSURE INCL. ROOM ATTENUATION TYPICAL FOR OFFICES AND CEILING ATTENUATION TYPICAL FOR MINERAL FIBRE TILE Catalogue, specifications subject to change ©2016

Open the catalog to page 5

Open the catalog to page 6

Open the catalog to page 7

Open the catalog to page 8

SOUND PRESSURE LEVEL AT DIFFERENTIAL PRESSURE OF 150 Pa SOUND PRESSURE INCL. ROOM ATTENUATION TYPICAL FOR OFFICES AND CEILING ATTENUATION TYPICAL FOR MINERAL FIBRE TILE Catalogue, specifications subject to change ©2016

Open the catalog to page 9

Open the catalog to page 10

Open the catalog to page 11

Open the catalog to page 12

SOUND PRESSURE LEVEL AT DIFFERENTIAL PRESSURE OF 500 Pa SOUND PRESSURE INCL. ROOM ATTENUATION TYPICAL FOR OFFICES AND CEILING ATTENUATION TYPICAL FOR MINERAL FIBRE TILE Catalogue, specifications subject to change ©2016

Open the catalog to page 13

Open the catalog to page 14

Open the catalog to page 15

Open the catalog to page 16

ﬂow/unit Vmin example: V̇min = 300 m3/h l/s diag m3/h Vmin diag Vmin diag 3. V̇MIN VALUE SETUP 2. V̇MAX VALUE SETUP Vmax diag Vmin diag oP(en) opens the damper cL(ose) closes the damper Hi(gh) activates V̇max On Diagnostic Mode is on, engine off Off Diagnostic Mode is off, display Y target AIR FLOW CONTROLLERS BS - P17 AIR FLOW CONTROLLERS BS Catalogue, speciﬁcations s

Open the catalog to page 17

WIRING DIAGRAMS MASTER SLAVE CONTROL FORCED CONTROL The controller can be force controlled to following positions via closing contacts. Vmax Open Close: Y = connected to ground conductor of 24 VAC supply (only with mode 2-10 V DC) V̇min: Y = disconnected V̇max: Y= full wave from 24 VAC supply Open: Y = pos. rectiﬁed half wave from 24 VAC supply AIR FLOW CONTROLLERS BS - P18 Catalogue, speciﬁcations subject to c

Open the catalog to page 18

G1: with 227VM controller (flow control) G2: with 227PM controller (pressure control) B5: with Belimo LMV-D3-MP (signal voltage 0/2-10V, minimum and maximum volume flow rate have to be specified) - : without motor S: single-walled rectangular VAV D: double-walled rectangular VAV • Vmax corresponds to the air flow rate at a duct air velocity of 10 m/s. • Vmin corresponds to the air flow rate at a duct air velocity of 1.5 m/s. • Mode 2 - 10 V DC Catalogue, specifications subject to change ©2016

Open the catalog to page 19