Bard MC4002 Series Installation Instructions & Replacement Parts List
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Bard MC4002 Series Installation Instructions & Replacement Parts List

Solid state dual unit lead/lag controller
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INSTALLATION INSTRUCTIONS
REPLACEMENT PARTS LIST
MC4002 Series Solid State
Dual Unit Lead/Lag Controller
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
&
Manual :
2100-614K
Supersedes:
2100-614J
Date:
4-1-21
Page
1 of 61

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Summary of Contents for Bard MC4002 Series

  • Page 1 INSTALLATION INSTRUCTIONS & REPLACEMENT PARTS LIST MC4002 Series Solid State Dual Unit Lead/Lag Controller Bard Manufacturing Company, Inc. Manual : 2100-614K Bryan, Ohio 43506 Supersedes: 2100-614J Date: 4-1-21 www.bardhvac.com Page 1 of 61...

  • Page 2: Table Of Contents

    CONTENTS Getting Other Information and Publications ....3 FIGURES Shipping Damage ...........3 Figure 1 Mechanical Humidistat Connection for General ..............3 "D" Dehumidification Models ....9 Theory of Operation ..........3 Controller Certifications ...........4 Figure 2 Electronic Humidistat Connection for Specifications/Features for Basic Controller ....4 "D"...

  • Page 3: Getting Other Information And Publications

    Fax: (404) 321-5478 total redundancy for the structure and equal wear on BARD Bard Manufacturing Company, Inc. both units. It can be used with units with or without 1914 Randolph Drive economizers and it is recommended that both units be Bryan, OH 43506 equipped alike.

  • Page 4: Controller Certifications

    •Space temperature sensors: One (1) local is standard, Bryan, OH 43506 will accept up to twp (2) optional 35' remote sensors, Bard part number 8612-023A. When multiple sensors are used, temperatures are averaged •Controller Enclosure: 20-gauge pre-painted steel, CONFORMS TO UL STD 916 9.25"W x 13.50"H x 3.00"D, hinged cover, thirteen...

  • Page 5: Temperature Sensor Logic

    Fire/smoke interface The controller is designed to accept 1 or 2 additional Shipped with jumper installed (a) sensors and those have 35-foot leads. The Bard part 48Vdc Back-up power input number for the optional sensor with 35-foot leads is -24Vdc or –48Vdc 8612-023A.

  • Page 6: Specifications/Features For Alarm Boards

    NOTE: If this alarm board was not originally factory problems can occur. Additionally, if one air conditioner installed, it can be field-installed at anytime. Bard loses power, the MC4002 and the other air conditioner part number is AB3000-A.

  • Page 7: Staging Delay Periods

    ADVANCE (SWAP) LEAD/LAG UNIT IMPORTANT NOTE: Older Bard R-22 models employ an electronic blower control that has a 60-second blower FEATURE off-delay. Current production R-410A models do not Pressing the Advance button for one (1) second will cause use a blower off-delay device and the remainder of this the lead and lag units to change positions.

  • Page 8: General Programming Overview

    GENERAL PROGRAMMING OVERVIEW MC4002 CONTROLLER BUTTONS AND FUNCTION On/Off Button Press and release the On/Off button to turn On controller, 4-character display will illuminate and Lead unit LED will light. Press and release the On/Off button to turn Off controller. Controller will go dark and A/C units will stop. Comfort Button Press and release the Comfort button to change the Cooling Setpoint to 72F and the Heating Setpoint to 68F for a period of 1 hour.

  • Page 9: Humidity Reduction Options

    H1 and H2 on the main to have matching heating and cooling capacities. controller board. See Figure 1 for connection of the humidistat. The recommended humidistat is Bard P/N • Another method of humidity control is when one 8403-038 (H600A 1014).

  • Page 10: Hot Gas Reheat Dehumidification Option

    See Figure 2 for connection of the and Y2) and blower (G) will operate until the humidistat. The recommended humidistat is Bard Part setpoint of humidity controller is satisfied (or #8403-038 or #8403-047. One or both units must be cancelled by a call for cooling).

  • Page 11: Cooling Operating Sequences For Alternating Lead/Lag/Lead/Lag Configuration

    COOLING OPERATING SEQUENCES B. If the space temperature rises above the cooling setpoint of the MC4002, the unit FOR ALTERNATING LEAD/LAG/LEAD/ will receive a signal to operate in cooling LAG CONFIGURATION mode (Y1, Y2). The wall mount unit will still receive a signal for dehumidification operation IMPORTANT (D) but the cooling call will override the...

  • Page 12: Table

    3. 1-Stage Compressor Units with EIFM Economizers the outdoor temperature and humidity conditions are (Enthalpy OD Sensor) below the setpoint of the economizer control the lag unit economizer will operate instead of the compressor. stage cooling setpoint is the setting (SP) input If outdoor conditions are not acceptable for free cooling into the controller.

  • Page 13: Cooling Operating Sequences For Non-Alternating Lead/Lead/Lag/Lag Configuration

    6. 2-Stage Compressor Units with ECONWM* or 1. 2-Stage Compressor Units No Economizer WECOP Economizers (See Note A) stage1 stage cooling setpoint is the setting (SP) stage cooling setpoint is the setting (SP) input into input into the controller. Factory default is 77F the controller.
  • Page 14 4. 2-Stage Compressor Units with EIFM Economizers the compressor will automatically operate instead of the economizer. stage cooling setpoint is the setting (SP) input into cooling setpoint is 2F (default setting, user the controller. Factory default is 77F (25C). On a call for cooling the blower of the lead unit will come on selectable 2-3F) warmer than Stage 3.

  • Page 15: Heating Sequence Of Operation

    “T” temperature only outdoor CB5000 Series Communication Board sensor or “E” enthalpy (temperature and humidity) NOTE: If the communication board (Bard CB5000 outdoor sensor. The “T” versions will have a fixed (but Series) was not originally factory installed, it can be selectable) outdoor temperature decision whereas on field installed at anytime.
  • Page 16 "Admin" and connection to main computer to Ethernet port on the CB5000 Series. password to "Bard". See page 17. controller board 2. Change the computer’s IP address as shown below to gain initial access to the CB5000 Series.
  • Page 17 MC4000 HVAC Monitor / Controller conditioner If economizers are used if on or off (NOTE: Older style EIFM economizers require a simple relay kit for this feature to work, Bard P/N 8620-221) 2. General status of: Dehumidification Active or not b.
  • Page 18 NOTE: If the remote user is on a different subnet than Setpoints Page the CB5000 Series, it is recommended that Static IP Addressing be used rather than DHCP. MC4000 HVAC Monitor / Controller If Network Uses Static IP Addressing 1. Enter the correct address information provided by the IT department and click the “Save Config”...
  • Page 19 h. Comfort Mode Notification Setup Page Restore System Defaults Reset Controller. There are built-in routines MC4000 HVAC Monitor / Controller to prevent the controller system from getting “locked up”, but this also allows a manual remote reset as a backup before having a service call to the site.
  • Page 20 Email Addresses – Add up to 10 valid email addresses generate traps by checking the box next each item that that will receive the email notification. should generate a trap. Subject – Customize the subject line of the email Network Traffic Limitation notification.
  • Page 21 This can also be used to poll all data by selecting “iso. org.dod.internet.private.enterprises.TTMI.BARD. MC4000Series” and using get subtree. Table View – Used to view the information in the setup folder. Displays the table to configure trap receiver To adjust a cell within this table, highlight the cell to be settings.
  • Page 22 Folder SNMP Points List Description AlarmStatus HighTempAlarm2 High temperature 2 alarm AlarmStatus PowerLossUnit1 Power loss alarm for unit 1 AlarmStatus PowerLossUnit2 Power loss alarm for unit 2 AlarmStatus Unit1Lockout Unit 1 lockout alarm AlarmStatus Unit2Lockout Unit 2 lockout alarm Temperatures LocalRoomTemp Local room temperature Temperatures...

  • Page 23: Controller Wiring

    GENERATOR RUN FEATURE Log Out Button 1. Clicking this button will automatically log off the If desired, the MC4002 controller can be signaled controller remote access. from a standby generator system to lockout (disable operation) of the lag air conditioning system. This 2.

  • Page 24: Table 1

    CONTROLLER CONNECTIONS DIAGRAMS TABLE 1 Controller Connections Diagrams Index Diagram # Controller Connection Diagram Page # 1-Stage (W**AB/W**LB/W**AC Series) Air Conditioners – No Economizers 1-Stage (W**AB/W**LB/W**AC Series) Air Conditioners – No Economizers with Alarm Board & CB5000 Series Communication Board 1-Stage (W**AB/W**LB/W**AC Series) Air Conditioners with JADE Economizers 1-Stage (W**AB/W**LB/W**AC Series) Air Conditioners with JADE...
  • Page 25 NOTE: ALL SENSORS ARE SILVER OPTIONAL FIELD INSTALLED POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER SENSORS, BARD PART CU, AND SILVER LEAD TO AG. REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 26 SILVER OPTIONAL FIELD INSTALLED POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER CU, AND SILVER LEAD TO AG. SENSORS, BARD PART REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 27 NOTE: ALL SENSORS ARE OPTIONAL FIELD INSTALLED SILVER POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER SENSORS, BARD PART CU, AND SILVER LEAD TO AG. REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 28 NOTE: ALL SENSORS ARE OPTIONAL FIELD INSTALLED SILVER POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER SENSORS, BARD PART CU, AND SILVER LEAD TO AG. REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 29 NOTE: ALL SENSORS ARE OPTIONAL FIELD INSTALLED SILVER POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER SENSORS, BARD PART CU, AND SILVER LEAD TO AG. REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 30 NOTE: ALL SENSORS ARE OPTIONAL FIELD INSTALLED SILVER POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER SENSORS, BARD PART CU, AND SILVER LEAD TO AG. REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 31 NOTE: ALL SENSORS ARE OPTIONAL FIELD INSTALLED SILVER POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER SENSORS, BARD PART CU, AND SILVER LEAD TO AG. REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 32 NOTE: ALL SENSORS ARE OPTIONAL FIELD INSTALLED SILVER POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER SENSORS, BARD PART CU, AND SILVER LEAD TO AG. REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 33 NOTE: ALL SENSORS ARE SILVER OPTIONAL FIELD INSTALLED POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER SENSORS, BARD PART CU, AND SILVER LEAD TO AG. REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 34 SILVER OPTIONAL FIELD INSTALLED POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER CU, AND SILVER LEAD TO AG. SENSORS, BARD PART REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 35 REM 1 NOTE: ALL SENSORS ARE OPTIONAL FIELD INSTALLED SILVER POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO SENSORS, BARD PART COPPER CU, AND SILVER LEAD TO AG. REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC"...
  • Page 36 NOTE: ALL SENSORS ARE OPTIONAL FIELD INSTALLED SILVER POLARITY SENSITIVE. COPPER 35 FOOT TEMPERATURE LEAD MUST CONNECT TO COPPER SENSORS, BARD PART CU, AND SILVER LEAD TO AG. REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM...
  • Page 37 CONTROLLER CONNECTIONS DIAGRAM 13 1-Stage (WA/WL, W**A/W**L Series) Air Conditioners – No Economizers MIS-2012D Manual 2100-614K Page 37 of 61...
  • Page 38 CONTROLLER CONNECTIONS DIAGRAM 14 1-Stage (WA/WL, W**A/W**L Series) Air Conditioners – No Economizers with Alarm Board & CB5000 Series Communication Board Manual 2100-614K Page 38 of 61...
  • Page 39 CONTROLLER CONNECTIONS DIAGRAM 15 1-Stage (WA/WL, W**A/W**L Series) Air Conditioners with ECONWM* Economizers Manual 2100-614K Page 39 of 61...
  • Page 40 CONTROLLER CONNECTIONS DIAGRAM 16 1-Stage (WA/WL, W**A/W**L Series) Air Conditioners with ECONWM* Economizers and with Alarm Board & CB5000 Series Communication Board Manual 2100-614K Page 40 of 61...
  • Page 41 CONTROLLER CONNECTIONS DIAGRAM 17 1-Stage (WA/WL, W**A/W**L Series) Air Conditioners with EIFM Economizers Manual 2100-614K Page 41 of 61...
  • Page 42 CONTROLLER CONNECTIONS DIAGRAM 18 1-Stage (WA/WL, W**A/W**L Series) Air Conditioners with EIFM Economizers and with Alarm Board & CB5000 Series Communication Board Manual 2100-614K Page 42 of 61...
  • Page 43 CONTROLLER CONNECTIONS DIAGRAM 19 2-Stage (WA*S/WL*S Series) Air Conditioners – No Economizers Manual 2100-614K Page 43 of 61...
  • Page 44 CONTROLLER CONNECTIONS DIAGRAM 20 2-Stage (WA*S/WL*S Series) Air Conditioners – No Economizers with Alarm Board & CB5000 Series Communication Board Manual 2100-614K Page 44 of 61...
  • Page 45 CONTROLLER CONNECTIONS DIAGRAM 21 2-Stage (WA*S/WL*S Series) Air Conditioners with ECONWM* Economizers Manual 2100-614K Page 45 of 61...
  • Page 46 CONTROLLER CONNECTIONS DIAGRAM 22 2-Stage (WA*S/WL*S Series) Air Conditioners with ECONWM* Economizers and with Alarm Board & CB5000 Series Communication Board Manual 2100-614K Page 46 of 61...
  • Page 47 CONTROLLER CONNECTIONS DIAGRAM 23 2-Stage (WA*S/WL*S Series) Air Conditioners with EIFM Economizers Manual 2100-614K Page 47 of 61...
  • Page 48 CONTROLLER CONNECTIONS DIAGRAM 24 2-Stage (WA*S/WL*S Series) Air Conditioners with EIFM Economizers and with Alarm Board & CB5000 Series Communication Board Manual 2100-614K Page 48 of 61...
  • Page 49 SENSOR 12" LEADS SILVER COPPER REM 1 OPTIONAL FIELD INSTALLED SILVER 35 FOOT TEMPERATURE COPPER SENSORS, BARD PART REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM NOTE: ALL SENSORS ARE REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM POLARITY SENSITIVE. COPPER LEAD MUST CONNECT TO CU, AND SILVER LEAD TO AG.
  • Page 50 SENSOR 12" LEADS SILVER COPPER REM 1 OPTIONAL FIELD INSTALLED SILVER 35 FOOT TEMPERATURE COPPER SENSORS, BARD PART REM 2 NUMBER 8612-023A SILVER GENERATOR RUN ALARM REMOVE JUMPER "NC" CONTACTS - OPEN ON ALARM HUMIDITY THIS FUNCTION IS NOT AVAILABLE...
  • Page 51 CONTROLLER CONNECTIONS DIAGRAM 27 WH/W**H/SH/S**H Heat Pumps – No Economizers Manual 2100-614K Page 51 of 61...
  • Page 52 CONTROLLER CONNECTIONS DIAGRAM 28 WH/W**H/SH/S**H Heat Pumps – No Economizers and with Alarm Board & CB5000 Series Communication Board Manual 2100-614K Page 52 of 61...

  • Page 53: Single Unit Application For Mc4002 With Alarm Board

    NOTE: ALL SENSORS ARE OPTIONAL FIELD INSTALLED SILVER POLARITY SENSITIVE. COPPER 35 FOOT TEM PERATURE LEAD M UST CONNECT TO COPPER SENSORS, BARD PART CU, AND SILVER LEAD TO AG. REM 2 NUM BER 8612-023A SILVER GENERATOR RUN ALARM REM OVE JUM PER "NC"...

  • Page 54: Alarm Wiring

    NOTE: The LED display board can be replaced if reasons (bad compressor, contactor, run capacitor, etc.). needed independently of the alarm board. Bard part number is 8612-022. Manual 2100-614K Page...

  • Page 55: Alarm Board Connections For Normally

    FIGURE 3 ALARM BOARD CONNECTIONS FOR NORMALLY CLOSED "NC" OPEN-ON-ALARM STRATEGY NOTE 1: 2nd Stage, Econ 1, Econ 2, High Temp 2 and Controller alarms are only on -B alarm board. All other alarms are on both -A and -B alarm boards. IMPORTANT: LED display board is shipped loose to protect it from possible damage during installation of the wiring to main controller board and/or the alarm board.

  • Page 56: Alarm Board Connections For Normally

    FIGURE 4 ALARM BOARD CONNECTIONS FOR NORMALLY OPEN "NO" CLOSE-ON-ALARM STRATEGY NOTE 1: 2nd Stage, Econ 1, Econ 2, High Temp 2 and Controller alarms are only on -B alarm board. All other alarms are on both -A and -B alarm boards. IMPORTANT: LED display board is shipped loose to protect it from possible damage during installation of the wiring to main controller board and/or the alarm board.

  • Page 57: Programming Instructions

    PROGRAMMING INSTRUCTIONS To change the setting of any step, press the CHANGE button and the display will stop flashing, allowing To swap lead and lag unit positions, press the ADVANCE change to the setting by using the DOWN or UP arrows. button.
  • Page 58 MC Series Solid State Dual Unit Lead Lag Controller Operating Instructions Cooling Stage Stage Stage Stage 1. To swap lead and lag units press “ADVANCE” . 2. To enter the Program mode press the Heating “Program” button and release it when “Pro9” Stage Stage Stage...

  • Page 59: Parts List Description Diagram

    FIGURE 3 PARTS LIST DESCRIPTION DIAGRAM MIS-2954 C Parts list on following page Manual 2100-614K Page 59 of 61...

  • Page 60: Parts List

    Parts List Dwg. CB5000 Part No. Description MC4002 MC4002-A MC4002-AC MC4002-B MC4002-BC AB3000-A AB3000-B Series 127-343-4 Control Box 8612-043 Controller Board 8612-049 Alarm Board A* 8612-050 Alarm Board B* 8612-022 Alarm Display 113-430-4 Support Bracket 152-625-4 Control Box Door 8611-099 LTF Fitting 5400-002 Hinge...

  • Page 61: Temperature Sensor Table

    TABLE 2 Temperature Sensor Table Value measured at sensor connections to the main controller board with controller powered up Kelvin Kelvin 288.7056 2.887 301.4822 3.015 289.2611 2.893 302.0377 3.020 289.8167 2.898 302.5932 3.026 290.3722 2.904 303.1487 3.031 290.9277 2.909 303.7042 3.037 291.4832 2.915...

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