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M4-CVM VAV Box Controllers Installation Guide

Application

The CVM03050 equipment controllers are designed for

variable air volume (VAV) box applications.
CVM03050 controllers operate on an RS-485 BACnet

®

MS/TP bus as BACnet Advanced Application Controllers

(B-AACs) and integrate into Johnson Controls

®

 and

third-party BACnet systems. CVMs feature 14 preloaded

standard applications to allow this controller to operate

standard VAV box equipment with a proven energy-

efficient sequence of operation, without the need for

programming. For information on configuring a CVM

controller to use a preloaded application, see 

Setting

a preloaded application

. CVM controllers are also fully

programmable, using the Controller Configuration Tool

(CCT), providing the flexibility to create custom control

sequences.
CVM03050 controllers feature an integral damper

actuator, a digital Differential Pressure Transmitter (DPT)

sensor, and a 32-bit microprocessor. The CVM03050-0P

model features an integral potentiometer to sense actual

VAV box damper position. For information on configuring

an application with integrated actuator feedback,

refer to the 

M4-CVM Actuator Feedback Application Note

(LIT-12013631)

.

CVM03050 controllers also include an integral real-time

clock, which enables the controllers to monitor and

control schedules, calendars, and trends, and operate

for extended periods of time as stand-alone controllers

when offline from the Metasys system network. These

controllers connect easily to the wired and wireless

network sensors for zone and discharge air temperature

sensing. Their small package size facilitates quick

field installation and efficient use of space without

compromising control performance.

Communications protocols

The CVM03050 controllers can communicate using

BACnet MS/TP, N2, or wireless Zigbee

®

. By default, the

CVM controllers communicate using the BACnet MS/TP

protocol. The BACnet protocol is a standard for ANSI,

ASHRAE, and the International Standards Organization

(ISO) for building controls.
The CVM controllers can be used as functional

replacements for legacy N2 controllers. The N2-capable

MS/TP equipment controller models provide a cost-

effective upgrade and modernization path for customers

with existing N2 controllers. For installation and

commissioning support, and tips for efficient and safe

replacement, refer to the 

Modernization Guide for Legacy

N2 Controllers (LIT-12012005)

 and the controller-specific

documentation. For information about mapping N2

Objects in controllers with switchable communications

protocols, refer to the 

N2 Compatibility Options 

chapter of

the 

Controller Tool Help (LIT-12011147)

.

To configure CVM controllers to communicate using

the N2 communications protocol, see 

Configuring N2

communications

.

The CVM controller can also be installed in a wireless

application using a ZFR/ZFR Pro Wireless Field Bus Router.

To configure these controllers to communicate using

the wireless communications protocol, see 

Configuring

wireless communications

.

North American Emissions Compliance

United States

This equipment has been tested and found to comply

with the limits for a Class A digital device pursuant to

Part 15 of the FCC Rules. These limits are designed

to provide reasonable protection against harmful

interference when this equipment is operated in a

commercial environment. This equipment generates,

uses, and can radiate radio frequency energy and, if not

installed and used in accordance with the instruction

manual, may cause harmful interference to radio

communications. Operation of this equipment in a

residential area may cause harmful interference, in which

case the users will be required to correct the interference

at their own expense.

Canada

This Class (A) digital apparatus meets all the

requirements of the Canadian Interference-Causing

Equipment Regulations.

Cet appareil numérique de la Classe (A) respecte toutes

les exigences du Règlement sur le matériel brouilleur du

Canada.

Installation

Observe the following guidelines when installing a CVM

controller:
• To minimize vibration and shock damage to the

controller, transport the controller in the original

container.

• Verify that all parts shipped with the controller.

• Do not drop the controller or subject it to physical

shock.

Parts included

• One CVM03050 controller with removable terminal

blocks (Input/Output, Power, FC, and SA terminal blocks

bus are removable)

• One installation instructions sheet

• One self-drilling No. 10 x 25 mm (1 in.) screw

*241014301590C*

Part No. 24-10143-01590 Rev. C

2020-10-30

(barcode for factory use only)

M4-CVM03050

Содержание CVM03050

Страница 1: ...e and modernization path for customers with existing N2 controllers For installation and commissioning support and tips for efficient and safe replacement refer to the Modernization Guide for Legacy N...

Страница 2: ...al block or N2 protocol as required 13 EOL End of Line Switch See Setting the End of Line EOL switch 14 SA Bus Port RJ 12 6 Pin Modular Jack See Modular ports 15 FC Bus Port RJ 12 6 Pin Modular Jack S...

Страница 3: ...you must provide hard stops at both full closed and full open damper positions If you install the CVM controller at the full open position the controller provides the open stop for 45 and 60 boxes The...

Страница 4: ...ons Important Electrostatic discharge can damage controller components Use proper electrostatic discharge precautions during installation setup and servicing to avoid damaging the controller For detai...

Страница 5: ...A bus Note Stranded 4 wire 2 twisted pair shielded cable One twisted pair is the and leads The second pair is COM and POWER Note Do not use the modular SA Bus port and the terminal block SA Bus simult...

Страница 6: ...avant d avoir v rifi toutes les connexions du c blage Le c blage inad quat de cette borne peut causer un court circuit sur l alimentation lectrique de 24 V c Un court circuit peut causer le d clenche...

Страница 7: ...ings and requirements To determine wire size and maximum cable length 15 V 15 VDC Power Source for active 3 wire input devices connected to the Universal UI n terminals Provides 35 mA total current Sa...

Страница 8: ...INARY Outputs BO C Binary Output 24 VAC Triac Internal Power Connects BO n to 24 BO C when activated Internal Power Source 30 VAC maximum voltage to load 0 5 A maximum output current 1 3 A at 25 duty...

Страница 9: ...and the load current in mA when wiring inputs and outputs Note Figure 9 applies to low voltage 30 V inputs and outputs only Figure 9 Maximum wire length for low voltage 30 V Inputs and Outputs by curr...

Страница 10: ...Common SA BUS 1 POWER 15 VDC Supply Power for Devices on the SA Bus 0 6 mm 22 AWG stranded 4 wire 2 twisted pairs shielded cable recommended Note The and wires are one twisted pair and the COM and POW...

Страница 11: ...on for the applicable termination diagrams Table 8 Termination details Type of Field Device Type of Input Output Termination diagrams Voltage Input External Source UI Voltage Input Internal Source UI...

Страница 12: ...xternal Source CO Note Applies to CO4 and CO5 Incremental Control to Actuator Switch Low External Source CO Note Applies to CO4 and CO5 Analog Output Voltage CO Incremental Control to Actuator Switch...

Страница 13: ...AC supply from the controller 2 Set the address switches to the desired N2 address For details about setting a device address see Setting the device address 3 Reconnect the 24 VAC supply to the contro...

Страница 14: ...ommunication 1 254 Note Addresses 0 and 255 are reserved and not for use on equipment controllers The device address is a decimal address set using three rotary switches located at the top of the cont...

Страница 15: ...the CVM03050 controller use the following procedure 1 With the desired application loaded in the controller commission the VAV Box Refer to the Controller Tool Help LIT 12011147 2 Perform airflow bal...

Страница 16: ...Elec Reheat Series Fan W C Adj Single Duct SCR Electric Reheat Proportional Heating Valve Single Speed Series Fan Warm Cool Adjust SCR Elec Reheat Parallel Fan W C Adj Single Duct SCR Electric Reheat...

Страница 17: ...ration SA Bus devices offline such as netsensors Rapid blink SA Bus communications issue Off Steady No faults On Steady Device fault or no application loaded FC BUS Green Blink 2 Hz Blink 2 Hz Data tr...

Страница 18: ...COM there must be no short circuit Note Some installations require the secondary of the transformer to be Earth Grounded If this is the case verify that the Earth Ground connection is valid and not s...

Страница 19: ...ontroller Display NS ATV7003 0 Handheld VAV Balancing Tool NS Series Network Sensors Refer to the NS Series Network Sensors Product Bulletin LIT 12011574 for specific sensor model descriptions AS CBLT...

Страница 20: ...cks 30 terminal blocks in total MS FIT100 0 The Field Inspection Tool FIT is a portable handheld device with a user interface that is used to test and troubleshoot the BACnet protocol MS TP RS 485 com...

Страница 21: ...er and equipment controllers 4 wire SA Bus between equipment controller network sensors and other sensor actuator devices includes a lead to source 15 VDC supply power from equipment controller to bus...

Страница 22: ...e of its products Repair information If the CVM03050 equipment controller fails to operate within its specifications replace the unit For a replacement unit contact the nearest Johnson Controls repres...

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