basic MV4000 CONTROLler input/output specifications

MV4000 controller connections

Located on Main Controller Board

Unit #1

C – 24VAC common

 

 

R – 24VAC hot

 

 

G – fan (Form A, NO)

 

 

Y1 – 1st-stage cool (Form A, NO)

 

Y2 – 2nd-stage cool (Form A, NO)

Unit #2

W – heat (Form A, NO)

 

C – 24VAC common

 

 

R – 24VAC hot

 

 

G – fan (Form A, NO)

 

 

Y1 – 1st-stage cool (Form A, NO)

 

Y2 – 2nd-stage cool (Form A, NO)

F1-F2

W – heat (Form A, NO)

 

Fire/smoke interface

 

48Vdc

Shipped with jumper installed (a)

 

Back-up power input

 

 

-24Vdc or –48Vdc

 

Local

-20V to –56V range

NOTE:

Main sensor, 12-inch leads

Sensors are

 

CU – copper, AG – silver

Rem 1

Polarity sensitive

solid state,

Optional remote indoor sensor

not RTD.

 

CU – copper, AG – silver

Use Bard

 

Polarity sensitive

Rem 2

sensors only.

Optional remote indoor sensor

 

CU – copper, AG – silver

 

 

 

H1-H2

Polarity sensitive

 

Humidity controller input

 

 

Requires optional controller

 

 

Field installed

 

Advance Input used to remotely toggle lead/lag change

(a)These connections require either jumper or Normally Closed (NC) relay contact at the Fire/Smoke and Generator interface for Controller to function.

Note: All alarm and output relays are dry contacts rated 1A @ 24 VAC.

Note: All alarm relay outputs have 10-second delay before issuing to protect against nuisance alarm signals.

located in the MV4000 panel box

Unit #1 Terminal Block

R – 24VAC hot from Unit

C – 24VAC common from Unit Y – Compressor Signal to Unit

A – Compressor Signal from Economizer 4 – Dirty Filter Alarm from Unit

5 – Dirty Filter Alarm from Unit

6 – No Connection (Do Not Use)

8 – Economizer Fail from Unit

9 – Economizer Fail from Unit

F – Economizer Shutdown Output

Unit #2 Terminal Block

R – 24VAC hot from Unit

C – 24VAC common from Unit Y – Compressor Signal to Unit

A – Compressor Signal from Economizer 4 – Dirty Filter Alarm from Unit

5 – Dirty Filter Alarm from Unit

6 – No Connection (Do Not Use)

8 – Economizer Fail from Unit

9 – Economizer Fail from Unit

F – Economizer Shutdown Output

Gen Run/Econ Shutdown Terminal Block(a)

Gen Run Input

Economizer Fail Terminal Block

Alarm Output

Alarm relays can be wired for NO (close on alarm) or NC (open on alarm) strategy. Alarm relays can be used individually if there are enough available building alarm points, or can be arranged into smaller groups or even a single group so that all alarm capabilities can be utilized. When multiple alarms are grouped together and issued as a single alarm there will be no off-site indication of which specific problem may have occurred, only that one of the alarms in the group has been triggered. The individual alarm problem will be displayed on the LED display on face of the controller.

Manual

2100-571A

Page

6 of 31

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Bard Located in the MV4000 panel box, Located on Main Controller Board, Gen Run/Econ Shutdown Terminal Blocka
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MV4000 specifications

The Bard MV4000 is a groundbreaking mobile video platform designed to revolutionize the way organizations manage and distribute video content. This versatile device is particularly notable for its robust features, advanced technologies, and user-friendly characteristics, making it an indispensable tool for various industries, including education, security, and entertainment.

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