Siemens LCM-OAVS 570-804PA Bedienungsanleitung

Installation Instructions

Document No. 570-114

October 26, 2016

LCM-OAVS Room Pressurization with,

Two Venturi Air Valves (One Exhaust,

One Supply) and HW Reheat (including

BTU Compensation)

Item No. 570-114 Rev. CA Page 1 of 8

Generic Controller I/O Layout. See Wiring Diagram for application specific details.

Control Applications

6750, 6756

Product Description

The Siemens Venturi Air Valve is a pre-packaged,

easy to install airflow measurement and control

solution. It provides stable and precise airflow

control of room supply, room general exhaust or

fume hood exhaust.

These instructions explain how to field install or

replace the BACnet Laboratory Controller Module

LCM.

This BACnet LCM-OAVS VAV Room Pressurization

Controller with HW Reheat and Two Fast-acting

Venturi Air Valves —One Exhaust, One Supply

features VAV control of a laboratory room with one

supply duct, one exhaust duct, and up to six Fume

Hoods. It uses fast-acting electronic actuators

(shipped separately) to control the supply and

exhaust Venturi air valves.

This controller is built on a BACnet Programmable

TEC (PTEC) platform that supports up to two

Offboard AVS signals; however, Onboard AVS

transducers are not supported. Offboard Air

Module(s) (OAM) house AVS transducers and send

signals to the AVS input(s) on the LCM OAVS

board.

The LCM can operate stand-alone, with a field

panel, or as part of a network.

Product Numbers

See the

Venturi Air Valve for Critical Environments

Technical Specification Sheet

(149-425) or

Configuration and Sizing

in the Critical Environments

section of InfoLink.

BACnet LCM-OAVS with HW Reheat

and Two Venturi Air Valves —One

Exhaust, One Supply Applications 6750

(RTS) 6756 (BTU)

This controller requires Offboard Air

Module(s) (ordered and shipped

separately

570-804PA

Document No. 570-114

Installation Instructions

October 26, 2016

Page 2 of 8Siemens Industry, Inc.

Offboard Air Module –two required,

order separately

550-819B

Siemens fast-acting Lab Electronic

Actuator(s) –order and ship separately)

GNP191.1U

Shipping carton includes a controller assembly, a

mounting rail, and two self-tapping/drilling screws.

CAUTION

Keep the unit in its static-proof bag

until installation.

Otherwise, you run the risk of

damage to the printed circuit board

from electrostatic discharge.

Accessories

Low cost temporary temperature

sensor, 10K Ω thermistor with

RJ11 (1” long), that enables space

control if the permanent room or

duct sensor is not installed (pack of

25).

540-658P25

Duct Temperature Sensor, NTC

10K Ω Type 2, 3" Probe for

Commissioning only.

QAM1030.008P50

Warning/Caution Notation

WARNING

Personal injury/loss of life may

occur if you do not follow the

procedures as specified.

CAUTION

Equipment damage or loss of data

may occur if you do not follow the

procedures as specified.

Required Tools and Equipment

Small flat blade screwdriver

3/8-inch open end wrench

Needle nose pliers

1/4-inch poly tubing

Prerequisites

Wiring conforms to NEC and local codes and

regulations. For further information, see the

Wiring Guidelines Manual

(125-3002).



(Optional)

Room temperature sensor installed.

24 Vac Class 2 power available.

Supply power to the unit is OFF.

Any application specific hardware or devices

installed.

NOTE:

A low-cost temporary RTS (540-658P25)

is available that plugs into the RTS port

on the controller, providing temperature

input and actual space control until a

permanent RTS is installed.

Expected Installation Time

30 minutes

Installation Instructions

NOTE:

All wiring must conform to national and

local codes and regulations (NEC, CE,

and so on).

1. Secure the mounting rail in the controller’s

desired location.

2. Place the ESD wrist strap on your wrist and

attach it to a good earth ground.

3. Remove the controller from the static proof bag

and snap it into place on the mounting rail.

4. If the controller will be used with a field panel,

disconnect the field level network (FLN) trunk

from the field panel.

5. Wire the FLN trunk to the controller. After all

controllers are connected to the FLN, reconnect

the FLN trunk to the field panel.

Document No. 570-114

Installation Instructions

October 26, 2016

Siemens Industry, Inc. Page 3 of 8

6. If the controller requires Offboard Air Modules,

install them now following the appropriate

Installation Instructions (see

Product Numbers

7. Connect the point wiring (see

Wiring Diagram

s).

CAUTION

DO Wiring –Each DO provides a

Normally Open (NO) terminal and a

Common (C) terminal.

To reduce noise and the potential

for ground loops, both connections

of a 24 Vac load must be wired

directly to the DO terminal on the

controller board.

CAUTION

The fume hood flow module, the

FHC, any 0 to 10 Vdc actuator used

by the LCM, and the LCM cannot

share a single power trunk.

The preferred configuration for

shared power trunks is to use one

trunk for the FFM and FHC and

another trunk for the actuator(s) and

LCM.

For each Fast Acting Lab Electronic Actuator,

verify that the switches are set as shown in

Figure

Switch Settings for the Fast Acting

Lab Electronic Actuator

Supply

Exhaust

Switch Settings for the Fast Acting Lab Electronic

Actuator.

CAUTION

This actuator requires a maximum

of 20 VA, 24 Vac source.

DO NOT connect any other non-

isolated devices to the transformer

that powers the electronic actuator

or the hot water valve actuator.

Plug the room temperature sensor cable into

the RTS port.

10.

Connect the power trunk. DO NOT apply

power to the controller without first consulting

the specialist.

CAUTION

It is important that the neutral that

supplies the TEC must be earth

grounded at the source of the 24

Vac power.

Possible erratic equipment

operation or damage if neutral is not

grounded.

The installation is complete.

Dimensions.

Document No. 570-114

Installation Instructions

October 26, 2016

Page 4 of 8Siemens Industry, Inc.

Wiring Diagrams

Offboard Air Module Wiring.

CAUTION

The LCM-OAVS has two terminal

blocks with terminations numbered

identically (terminations 1 through

16). DO NOT get these mixed up

with each other.

If the LCM-OAVS is not connected

as shown, it is not resistant to

electrical surges. It is also

susceptible to interference from

other equipment.

CAUTION

A separate power supply is required

if a 4-20 mA sensor is used.

Failure to follow wiring precautions

will result in equipment damage.

Wiring for AI with a 4 to 20 mA Sensor.

CAUTION

Each 4-20 mA sensor requires a

SEPARATE dedicated power limited

24 Vdc power supply.

DO NOT use the same transformer

to power both the sensor and the

controller.

NOTE:

If the voltage/current switch is set to

current and a 4 to 20 mA sensor is

connected to an AI, then special wiring

requirements must be followed.

NOTE:

When wiring any actuator that uses a 0 to

10V control signal and ties AC neutral to DC

common, an additional wire must connect

the actuator AC neutral to the DC common

of the PTEC/TEC AO being used to control

the actuator.

24 Vac Modulating Control.

Document No. 570-114

Installation Instructions

October 26, 2016

Siemens Industry, Inc. Page 5 of 8

Actuator

Symbol

TEC

Connection

Function

Terminal

Connection

Standard

Color

Supply (SP)

Red

Neutral (SN)

Black

AO3 –15

(+)

0 to 10V

input signal

Gray

C to AO3

16 (-)

Common

jumper

NOTE:

The controller’s DOs control 24 Vac

loads only. The maximum rating is 12 VA

for each DO. An external interposing

relay is required for any of the following:

• VA requirements higher than the

maximum

• 110 or 220 Vac requirements

• DC power requirements

• Separate transformers used to power

the load

(for example, part number 540-147,

Terminal Equipment Controller Relay

Module)

NOTE:

Thermistor inputs are 10K (default) or

100K software selectable (AI

Document No. 570-114

Installation Instructions

October 26, 2016

Page 6 of 8Siemens Industry, Inc.

BACnet LCM-OAVS with Hot Water Reheat and Two Venturi Air Valves (One Exhaust, One Supply) -- Application 6750 Wiring

Diagram.

Document No. 570-114

Installation Instructions

October 26, 2016

Siemens Industry, Inc. Page 7 of 8

BACnet LCM-OAVS with Hot Water Reheat, BTU Compensation, Two Venturi Air Valves (One Exhaust, One Supply) --

Application 6756 Wiring Diagram.

Document No. 570-114

Installation Instructions

October 26, 2016

Information in this document is based on specifications believed correct at the time of publication. The right is reserved to make changes as

design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners. ©

2016 Siemens Industry, Inc.

Siemens Industry, Inc.

Building Technologies Division

1000 Deerfield Parkway

Buffalo Grove, IL 60089-4513

USA

Tel. 1 + 847-215-1000

Your feedback is important to us. If you have

comments about this document, please send them

to SBT_technical.editor.us.sbt@siemens.com.

Document No.570-114

Printed in the USA

Page 8 of 8

Cyber security disclaimer

Products, solutions and services from Siemens include

security functions to ensure the secure operation of

building automation and control, fire safety, security

management, and physical security systems. The security

functions on these products, solutions and services are

important components of a comprehensive security

concept.

Drafting, implementing and managing a comprehensive

and up-to-date security concept, customized to individual

needs, is nevertheless necessary, and may result in

additional plant- or site-specific preventive measures to

ensure secure operation of your site regarding building

automation and control, fire safety, security management,

and physical security. These measures may include, for

example, separating networks, physically protecting

system components, user training, multi-level defensive

measures, etc. For additional information on security as

part of building technology and our product, solution and

service offerings, please contact your Siemens sales

representative or project department. We strongly

recommend to always comply with our security advisories

on the latest security threats, patches and other related

measures. http://www.siemens.com/cert/en/cert-security-

advisories.htm

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