BASIC MC4000 CONTROLLER INPUT/OUTPUT SPECIFICATIONS

MC4000 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)

 

W – heat (Form A, NO)

 

Unit #2

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)

 

W – heat (Form A, NO)

 

F1-F2

Fire/smoke interface

 

 

Shipped with jumper installed (a)

 

48Vdc

Back-up power input

 

 

-24Vdc or –48Vdc

 

 

-20V to –56V range

 

 

NOTE:

Local

Main sensor, 12-inch leads

 

 

CU – copper, AG – silver

Sensors are

 

Polarity sensitive

solid state,

Rem 1

Optional remote indoor sensor

not RTD.

 

CU – copper, AG – silver

 

Use Bard

 

Polarity sensitive

 

 

Rem 2

Optional remote indoor sensor

sensors only.

 

CU – copper, AG – silver

 

 

 

 

Polarity sensitive

 

Gen

Generator interface G1-G2

 

 

Shipped with jumper installed (a)

 

H1-H2

Humidity controller input

 

 

Requires optional controller

 

 

Field installed

 

(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.

SPECIFICATIONS/FEATURES FOR ALARM BOARDS

MC4000-A w/Optional Base Alarm Board (Inputs/Outputs)

NOTE: If this alarm board was not originally factory installed, it can be field-installed at anytime. Bard part number is AB3000-A.

Inputs

 

Lockout 1

2,3 – input from HVAC #1

Lockout 2

2, 3 – input from HVAC #2

Outputs

 

Smoke/Fire

Form C (SPDT)

Lockout 1

Form C (SPDT)

 

Refrigerant alarm HVAC #1

Lockout 2

Form C (SPDT)

 

Refrigerant alarm HVAC #2

Power Loss 1

Form C (SPDT)

 

Power loss HVAC #1

Power Loss 2

Form C (SPDT)

 

Power loss HVAC #2

Low Temp

Form C (SPDT)

 

Low temperature alarm

High Temp 1

Form C (SPDT)

 

High temperature alarm #1

MC4000-B w/Enhanced Version Alarm Board (Additional Outputs) plus MC4000-A Inputs/Outputs

NOTE: If this alarm board was not originally factory installed, it can be field-installed at anytime. Bard part number is AB3000-B.

High Temp 2

Form C (SPDT)

 

High temperature alarm #2

Controller

Form C (SPDT)

 

Controller failure alarm

Econ 1

E, F - Form A (NO)

 

See note (b)

Econ 2

E, F - Form A (NO)

 

See note (b)

2nd Stage (c)

Form C (SPDT)

 

2nd-stage cooling alarm

(b)Make these connections to terminals E & F in HVAC 1 and 2 respectively if desired to have economizers open for emergency ventilation at High Temp Alarm #2 setpoint condition.

(c)For units with 2-stage compressors, 2nd stage cooling alarm activates on cooling Stage 3 initiation.

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

2100-563C

Page

6 of 40

Page 6
Image 6
Bard MC4000 installation instructions SPECIFICATIONS/FEATURES for Alarm Boards, Located on Main Controller Board

MC4000 specifications

The Bard MC4000 is a state-of-the-art multi-channel wireless communication system, designed primarily for the needs of professionals in various industries. Known for its robust performance and exceptional reliability, the MC4000 is an ideal solution for events, concerts, large venues, and critical communications in diverse environments.

One of the main features of the MC4000 is its multi-channel capability, allowing it to support a range of frequencies simultaneously. This feature prevents interference from other devices and ensures clear, uninterrupted communication. The system supports multiple transmitters and receivers, enabling large teams to communicate effectively without the need for cumbersome cables.

The Bard MC4000 utilizes advanced digital signal processing technology, offering enhanced audio quality. This technology minimizes background noise and provides crisp, clear audio transmission even in challenging environments. The system also features automatic frequency selection, which scans for the best available frequencies, ensuring optimum performance at all times.

The MC4000 is designed with user-friendliness in mind, featuring an intuitive interface that allows for quick setup and operation. The clearly labeled controls and bright display make it easy for users to monitor audio levels and battery life, ensuring seamless operation during critical moments. Furthermore, the system is compatible with a variety of microphones and headsets, providing users with the flexibility to choose the equipment that best suits their needs.

Durability is another key characteristic of the Bard MC4000. Its rugged construction can withstand demanding usage in various environments, from outdoor events to industrial applications. The system also includes weather-resistant features, making it suitable for operations in adverse weather conditions without compromising functionality.

In terms of connectivity, the MC4000 supports both wired and wireless options. This versatility enables users to switch between modes depending on their needs or specific venue requirements. The built-in rechargeable battery ensures extended usage, eliminating the hassle of frequent battery replacements.

Overall, the Bard MC4000 is a versatile, high-performance wireless communication system that meets the demanding needs of modern professionals. Its combination of multi-channel support, advanced audio technology, and user-friendly design makes it an essential tool for anyone needing reliable communication in their operations. With the MC4000, users can expect clarity, durability, and performance that can keep pace with their dynamic work environments.