User Manual

ManualsBrandsSiemens ManualsDamper actuatorsVAV compact controller G..B181.1E/3, VAV modular controller ASV181.1E/3

CE1N3545en

2019-03-21

Building Technologies

545

OpenAir™

VAV modular controller

ASV181.1E/3

Series F

• Modular controller for plants with variable or constant air volume flow

• Integrated high-accuracy differential pressure sensor and configurable

digital air volume controller

• Operating voltage AC 24 V

• For connection to an OpenAir

family 3-position air damper actuator

• Prewired with one 0.9 m and one 0.3 m connecting cable

− Please refer to the Technical Basics in document P3544 for a detailed

description as well as information on safety, engineering notes, mounting and

commissioning.

− The running time for a connected 3P damper actuator must be 30 s or higher

Note

Summary of content (12 pages)

PAGE 1
s 3 545 OpenAir™ VAV modular controller ASV181.1E/3 Series F • Modular controller for plants with variable or constant air volume flow • Integrated high-accuracy differential pressure sensor and configurable digital air volume controller • Operating voltage AC 24 V • For connection to an OpenAirTM family 3-position air damper actuator • Prewired with one 0.9 m and one 0.
PAGE 2
Application VAV modular controllers are used primarily to control a variable or a constant air volume flow. VAV modular controllers are used for: • Supply air control • Extract air control • Supply/ extract air cascade control with − ratio control 1 : 1 − ratio control (positive / negative pressure) − differential control (positive / negative pressure) VAV modular controllers are not suitable for environments where the air is saturated with sticky or fatty particles or contain aggressive substances.
PAGE 3
Design 1 2 3 4 5 6 7 LED Configuration and maintenance interface (below cover) 4-core connecting cable for OpenAir 3-position air damper actuator 6-core connecting cable (power and communications) Connection nozzle for measuring differential pressure in the VAV box Connection nozzle for measuring differential pressure in the VAV box ("+": Side with higher pressure) Beltline hook Settings and operating mode The VAV modular controllers can be parameterized with configuration tools (cf.
PAGE 4
Operating modes Operating mode “con” The following parameters have to be set or checked in operating mode “con”: Parameter Setting Description Siemens factory setting Type con VAV or CAV mode con Setpoint “YC” 0…10 V 2…10 V 1…3.
PAGE 5
Constant air volume (CAV) control  max  min or V VAV modular controllers operate in CAV mode if input YC is open. V control can be accomplished with control signals Y1 and Y2.
PAGE 6
Operating mode “STP”  mid / V  max / OPEN  min / V CAV step mode: CLOSE / V CAV step mode (Type “STP”) YC <1 V → V min  open → V mid  >9 V → V max Note Y1 open G0 G0 open Y2 open open G0 G0 Action CAV step mode Dir r → rotation CW Dir L → rotation CCW “Damper fully open“ CAV step mode Dir r → rotation CCW Dir L → rotation CW “Damper fully closed“  min ≤ 0 drives the actuator to position “fully closed”. Setting V N1 ASV181.1E/3 or G..B181.
PAGE 7
With master/slave control, the DC 0/2…10 V output signal of the controller is fed into the supply air volume controller (master controller) as the reference variable. The extract air volume controller (slave controller) receives the master controller’s actual value signal of the air volume flow as the reference variable (setpoint). Operating mode “3P” Operating mode “con”” Minimum and maximum limitation of air volume flow  max is made on the relevant controller.
PAGE 8
Temperature Humidity (non-condensing) Standards and Regulations Product safety Automatic electric controls for household and similar use 0...50 °C / −25…70 °C <95% r.h. / <95% r.h.
PAGE 9
Connection cable 1 (color coded and labeled) Terminal code G Description red (RD) black (BK) G0 System neutral AC 24 V 6 violet (VT) Y1 Positioning signal "Actuator’s direction of rotation" (G0 switched) dependent on the setting of direction 7 orange (OG) Y2 Positioning signal "Actuator’s direction of rotation" (G0 switched) dependent on the setting of direction 8 grey (GY) YC1) Air volume flow reference signal DC 0/2...
PAGE 10
Modulating control Vmax and Vmin and complete shutoff and fully open operating mode “con” Complete shutoff Legend for operating mode “con” N1 N2 Y1 ASV181.
PAGE 11
Dimensions Measurements in mm 11 / 12 Siemens Building Technologies VAV modular controller ASV181.
PAGE 12
Issued by Siemens Switzerland Ltd Building Technologies Division International Headquarters Theilerstrasse 1a 6300 Zug Switzerland Tel. +41 58-724 24 24 www.siemens.com/buildingtechnologies © Siemens Switzerland Ltd, 2005 Technical specifications and availability subject to change without notice. 12 / 12 Siemens Building Technologies VAV modular controller ASV181.