Johnson Controls Metasys DX-9100 Service manual

M-Applications 653

Metasys Ventilation Controller Section

Issue Date 1000

Part No. 24-8395-26 Rev. —

Code No. LIT-653425

TECHNICAL BULLETIN

Metasys Ventilation Controller Application

for the DX-9100

Metasys Ventilation Controller Application for the DX-9100 .............3

Introduction........................................................................................................*3

Key Concepts...................................................................................................... 5

Johnson Controls CO2Concentration Samplers............................................................ *5

MVC-2000-1 Package ................................................................................................... *5

Universal Packaging Module (UPM) ............................................................................... 6

DX-9100 ........................................................................................................................*7

CO2Sensor................................................................................................................... *7

Air Valve ......................................................................................................................... 8

Air Pump......................................................................................................................... 8

Air Filter ......................................................................................................................... *8

Return, Supply, and Outdoor Air Ports............................................................................ 8

Sample System ............................................................................................................. *9

HVAC System Requirements........................................................................................ 10

Location Considerations ............................................................................................... 10

Procedure Overview ........................................................................................*12

Detailed Procedures ......................................................................................... 13

Installing a UPM........................................................................................................... *13

Installing Air Sampling Devices and Tubing .................................................................. 14

Trending Data.............................................................................................................. *15

Checking the Solenoid Valves ..................................................................................... *16

Calculating the OA Flow .............................................................................................. *16

Checking the Controller Application ............................................................................. *17

Reloading the Controller Application ............................................................................ *17

* Indicates those sections where changes have occurred since the last printing.

Metasys Ventilation Controller

Metasys Ventilation Controller Application for the DX-9100 3

Metasys Ventilation Controller

Application for the DX-9100

Introduction

A Johnson Controls Building Automation System (BAS), along with

the Metasys® Ventilation Controller (MVC) 2000-1 Multipoint Gas

Concentration Sampler, can provide building managers with a

cost-effective method of addressing the Ventilation Rate Procedure

found in ASHRAE (American Society of Heating, Refrigeration, and

Air Conditioning Engineers) Standard 62-1999. The MVC-2000-1 is

used to implement the Metasys Ventilation Controller Application

(MVCA) that allows a facility manager to:

•monitor the flow of outdoor air into a building, using a patented

tracer gas method

•control the flow of outdoor air into a building according to

ASHRAE guidelines, e.g., 20 cubic feet per minute (cfm)/person

for office spaces

•document the ventilation flow for future reference, which enables

the facility manager to compare the readings with established state,

local, federal, or ASHRAE guidelines

•perform CO2high-limit control (override of ventilation controller)

in response to greater than expected occupancy in critical areas

such as conference rooms

•view CO2concentrations in supply, return, and outdoor air at the

workstation

•diagnose the control system, since deviations in trended CO2

readings can suggest problems with the Heating, Ventilating, and

Air Conditioning (HVAC) equipment

•set alarms based on CO2levels exceeding a user-defined

maximum or differential

Metasys Ventilation Controller

This technical bulletin describes how to:

•install a Universal Packaging Module (UPM)

•install air sampling devices and tubing

•trend data

•check the solenoid valves

•calculate the Outdoor Air (OA) flow

•check the controller application

•reload the controller application

Metasys Ventilation Controller Application for the DX-9100 5

Key Concepts

Johnson Controls CO2Concentration Samplers

Johnson Controls offers two 3-point, multiplexed CO2measurement

devices, as shown in Table 1.

Table 1: Attributes of the MVC-2000-1

Product Intended Use Enclosure Controller Software Links

MVC-2000-1 3-point,

multiplexed CO2

measurement

UPM

Enclosure

One

Metasys

Extended

Digital

Controller

(DX-9100)

GX-9100 Application

for MVC is

pre-installed in the

DX-9100.

Metasys

Supervisory

Controller and

workstation links

possible but not

required.

This document gives procedures that are unique to the MVC-2000-1

and its components as shown in Figure 1. Refer to existing product

documentation for standard procedures involving these components.

MVC-2000-1 Package

Many of the components of the MVC-2000-1 package are

Johnson Controls products, including the:

•UPM

•DX-9100, Version 2.4 or later

•GX-9100 Configuration Tool Software for the DX-9100

•V11HGA-100 3-way Solenoid Air Valve

•A-4000-137 Air Filter

Metasys Ventilation Controller

Mvc2000B

DX-9100

3-Way

Valves

Sensor

Ports for Outside,

Return, and Supply Air

Air Filter

Air Pump

Figure 1: Components of an MVC-2000-1

Universal Packaging Module (UPM)

The MVC-2000-1 product line utilizes the EN-EWC35-0 UPM. Each

EWC number ends with a “5,” which means that the UPM enclosure

with cover also comes equipped with a transformer and a power box.

Refer to the UPM literature for the following UPM procedures:

•engineering

•installation, which includes:

a. mounting

b. landing conduit

c. power connections

d. grounding and bonding

•commissioning

Metasys Ventilation Controller Application for the DX-9100 7

DX-9100

The DX-9100 is a controller manufactured and marketed by

Johnson Controls. The Metasys Ventilation Controller Application of

the GX-9100 Software Tool is used to program the DX-9100.

DX-9100 Hardware

The MVC-2000-1 product utilizes one DX-9100. The DX-9100 is

factory installed in the MVC-2000-1.

CAUTION: Do not use any additional inputs or outputs on

the DX-9100, which is performing the outdoor

air flow calculations. The GX-9100 software

uses the full capabilities of the controller and

adding additional inputs or outputs risks

overburdening the system.

GX-9100 Software Configuration Tool

To use the MVCA, it is necessary to know GX-9100 basics such as:

•opening a file

•downloading a file

•commissioning a DX-9100

These procedures are contained in the GX-9100 Software

Configuration Tool User’s Guide (LIT-6364060).

GX-9100 Application for MVC

The MVCA is factory downloaded into the DX-9100.

For an explanation of the GX-9100 application for MVCA, refer to the

Metasys Ventilation Controller Application (MVCA) Application Note

(LIT-653435).

CO2Sensor

Each MVC-2000-1 contains a single CO2sensor. It is used to sense the

CO2levels in three distinct airstreams:

•supply air

•return air

•outdoor air

This is achieved through the use of two 3-way pneumatic valves and

the associated multiplexing control. Three separate pneumatic lines

are multiplexed into the single CO2sensor.

Metasys Ventilation Controller

The CO2sensor is factory mounted and wired in the MVC-2000-1

enclosure. Since it is also factory calibrated, there is no need to

calibrate the CO2sensor before starting the MVCA.

Air Valve

Each MVC-2000-1 contains two solenoid air valves. These

two V11HGA-100 3-way solenoid air valves switch the input source

of sampled air from one of three sampling tubes to the CO2sensor.

This allows samples from three different airstreams to be multiplexed

into a single CO2sensor.

The solenoid air valves have already been installed in the

MVC-2000-1 enclosure. Electrical power has been connected.

No installation or commissioning procedures are necessary for the air

valves. If a problem arises with this product, refer to the V11 Series

Three-Way Solenoid Air Valve Technical Bulletin (LIT-7171550X)

found in the Pneumatic Control Manual (FAN 717.1).

Air Pump

The MVC-2000-1 comes equipped with an air pump. The pump

maintains proper air flow between the air sampling points and the

CO2sensor regardless of duct static pressure. No installation or

maintenance procedures are required for the air pump. The air pump is

factory installed in the MVC-2000-1 enclosure. If the pump should

fail, replace it with a 0.8 liters/minute (L/min.) pump. Eight L/min is

equivalent to 0.21 gallons/minute (gal/min).

Air Filter

Each MVC product contains an A-4000-137 air filter. This removes

particulate and moisture from the airstream, to prevent damage to the

CO2sensor. The A-4000-137 filter also inhibits contamination of the

pump and the CO2sensing chamber.

Inspect the air filter every few months. Replace the filter if a dark red

color appears on the outer surface, indicating oil or water

contamination.

Return, Supply, and Outdoor Air Ports

The return, supply, and outdoor air samples enter the UPM enclosure

through their respective ports.

Metasys Ventilation Controller Application for the DX-9100 9

Sample System

Figure 2 shows a sample system with an MVC-2000-1 connected to a

Metasys Supervisory Controller that supports the DX-9100 via an

N2 Bus. The Metasys Supervisory Controller is optional and the

workstation is only required for visual trending of data. Linked and

modulated outdoor air flow dampers and a supply air flow measuring

station are required parts of the system.

Supervisory

Controller

does data trending.

MVC-2000-1

VAV Air

Handling System

Supply Air Flow

Measuring Station

Coupled

Dampers

Workstation

Printer

archives and prints

trend data.

MVCAPB5

Calculates

outdoor air flow

and controls

the dampers.

Supply Air Flow

Multiplexed Samples

of Supply, Return,

Outdoor Air

Discharge Air Temperature

Mixed Air Damper Control

Supervisory

Controller

N2 Bus

Air Handling Unit

Controller

N2 Bus

Figure 2: Sample System Using MVC-2000-1

Connected to a Metasys Supervisory Controller

Metasys Ventilation Controller

HVAC System Requirements

In order to achieve optimum performance from the application, the

following checklist must be used to evaluate the HVAC system prior

to installation. Refer to items that are appropriate to the installation. If

any items below are questionable, contact a Johnson Controls technical

support representative.

•Is the HVAC system in good working condition?

•Are all controls and controlled systems properly calibrated?

•Are all control loops working as they were commissioned?

•Is the HVAC system appropriately sized for the building it serves?

•Are the ducts sized properly for the air handling system?

•Are the dampers, linkages, and actuators in good operating

condition?

•Is the air measuring station in the supply air duct installed and

operating properly?

•Is the outdoor air intake free from the re-entrainment of exhaust

air?

•Is the outdoor air intake free from the entrainment of pollution

sources, e.g., carbon monoxide from trucks and buses?

Location Considerations

Consider the following factors when deciding where to mount the

MVC-2000-1 enclosure:

•Stability: The enclosure should be mounted to a flat, stable,

non-vibrating mounting surface (heavy-duty drywall or concrete)

where the unit will not be subjected to moisture accumulation or

drastic temperature variation.

•Ambient Operating Conditions: Temperature: 0 to 40°C

(32 to 104°F); humidity: 10 to 95% Relative Humidity (RH),

non-condensing.

CAUTION: Because it contains delicate sensing instruments,

the MVC should be located in an environment in

which the ambient temperature is normally above

5°C (40°F). The MVC is not designed to be located

on an exposed rooftop.

Table of contents

Other Johnson Controls Controllers manuals

Johnson Controls

Johnson Controls FX Supervisory Controller RS-485 Card User manual

Johnson Controls

Johnson Controls VA9204-GG-2Z Series User manual

Johnson Controls

Johnson Controls Penn A421 Series User manual

Johnson Controls

Johnson Controls M9310-HGA-3 User manual

Johnson Controls

Johnson Controls FX-PCA2611-0 User manual

Johnson Controls

Johnson Controls TC-8902 User manual

Johnson Controls

Johnson Controls M9308-AGA-xZ series User manual

Johnson Controls

Johnson Controls VA-8122 Service manual

Johnson Controls

Johnson Controls M9106-AGx-2N0x Series User manual

Johnson Controls

Johnson Controls LX Series User manual

Johnson Controls

Johnson Controls PENN ACT2 Service manual

Johnson Controls

Johnson Controls SE-SPU101 Series User manual

Johnson Controls

Johnson Controls VMA18 Series User manual

Johnson Controls

Johnson Controls M9220-GG-3 Series User manual

Johnson Controls

Johnson Controls TEC3000 Series User manual

Johnson Controls

Johnson Controls York YKN2Open board Manual

Johnson Controls

Johnson Controls S321-IP Manual

Johnson Controls

Johnson Controls EasyIO FW-08 V3 User manual

Johnson Controls

Johnson Controls LN Series User manual

Johnson Controls

Johnson Controls FW-14 User manual

Johnson Controls

Johnson Controls FAC3613 User manual

Johnson Controls

Johnson Controls CIS01 Instruction Manual

Johnson Controls

Johnson Controls M9220-GGx-3 series User manual

Johnson Controls

Johnson Controls VA-747 Series User manual

Popular Controllers manuals by other brands

Digiplex

Digiplex DGP-848 Programming guide

YASKAWA

YASKAWA SGM series user manual

Sinope

Sinope Calypso RM3500ZB installation guide

Isimet

Isimet DLA Series Style 2 Installation, Operations, Start-up and Maintenance Instructions

LSIS

LSIS sv-ip5a user manual

Rockwell Automation

Rockwell Automation 1769-L31 installation instructions

Airflow

Airflow Uno hab Installation and operating instructions

ABB

ABB ACS580-01 drives Hardware manual

Panasonic

Panasonic GM1 Series Reference manual

Emerson

Emerson SW93 owner's manual

AutoAqua

AutoAqua Smart ATO micro SATO-120P manual

Panasonic

Panasonic FP? Positioning Unit RTEX Technical manual

Samson

Samson Type 5824 Mounting and operating instructions

Alpha IP

Alpha IP MIOB 21001 manual

Siemens

Siemens OpenAir GMA 1 Series Mounting instructions

Surecom

Surecom SR-629 user manual

Fishman

Fishman TriplePlay installation guide

Regulus

Regulus SRS1 T Installation and operation manual