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Bard MC4001 Series Installation Instructions & Replacement Parts List

Solid state dual unit lead/lag controller
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INSTALLATION INSTRUCTIONS
REPLACEMENT PARTS LIST
MC4001 SERIES SOLID STATE
DUAL UNIT LEAD/LAG CONTROLLER
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
&
Manual :
2100-614C
Supersedes:
2100-614B
Date:
1-21-16
Page
1 of 40

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  • Page 1 INSTALLATION INSTRUCTIONS & REPLACEMENT PARTS LIST MC4001 SERIES SOLID STATE DUAL UNIT LEAD/LAG CONTROLLER Bard Manufacturing Company, Inc. Manual : 2100-614C Bryan, Ohio 43506 Supersedes: 2100-614B Date: 1-21-16 www.bardhvac.com Page 1 of 40...
  • Page 2 CONTENTS Getting Other Information and Publications Figures MC4001 General Information Figure 1 Controller Connections 1-Stage (WA/WL, W**A/ Shipping Damage ..........4 W**L Series) A/C w/No Economizers ..17 General ............. 4 Figure 2 Controller Connections 2-Stage (WA*S/WL*S Theory of Operation ..........4 Series) A/C - No Economizers ....

  • Page 3: For More Information, Contact These Publishers

    American Society of Heating, Refrigerating, and Air Conditioning Engineers, Inc. 1791 Tullie Circle, N.E. Atlanta, GA 30329-2305 Telephone: (404) 636-8400 Fax: (404) 321-5478 BARD Bard Manufacturing Company, Inc. 1914 Randolph Drive Bryan, OH 43506 Telephone: (419) 636-1194 Fax: (419) 636-2640 Manual 2100-614C...

  • Page 4: Shipping Damage

    It can be used with units with or without 001. economizers and it is recommended that both units be equipped alike. Bard Manufacturing Company, Inc. Bryan, OH 43506 CONFORMS TO UL STD 916 CERTIFIED TO CSA STD C22.2 NO. 205...

  • Page 5: Specifications/Features For Basic Controller

    The controller is designed to accept 1 or 2 additional sensors 1 hour and those have 35-foot leads. The Bard part number for the •Dead band (difference between cooling and heating set optional sensor with 35-foot leads is 8612-023A. These can points): 2F to 40F (1.1C to 22.2C)

  • Page 6: Specifications/Features For Alarm Boards

    The on-board sensor is ignored if NOTE: If this alarm board was not originally factory two (2) or more sensors are connected to the Local, Rem installed, it can be field-installed at anytime. Bard 1 or Rem 2 sensor inputs. part number is AB3000-A.
  • Page 7 ADVANCE (SWAP) LEAD/LAG UNIT FEATURE IMPORTANT NOTE: Older Bard R-22 models employ an electronic blower control that has a 60-second blower Pressing the Advance button for one (1) second will cause off-delay. Current production R-410A models do not the lead and lag units to change positions.
  • Page 8 GENERAL PROGRAMMING OVERVIEW MC4001 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 Set Point to 72F and the Heating Set Point to 68F for a period of 1 hour.

  • Page 9: Humidity Control Option

    H1 and H2 on the main for cooling the blower of the lead unit will come on controller board. Recommended Bard Part #8403-038 immediately (if not already on – See Blower Operation), (H600A 1014). Both HVAC units must be equipped and the Stage 1 LED will blink for 10-seconds before with electric heat for this sequence to work properly.
  • Page 10 outdoor temperature and humidity conditions are below operate as long as outdoor conditions are acceptable, the set point of the economizer control the lead unit and the compressor will operate. economizer will operate instead of the compressor. If cooling set point is 2F (default setting, user outdoor conditions are not acceptable for free cooling selectable 2-3F) warmer than Stage 3.
  • Page 11 economizer control the lead unit economizer will cooling set point is 4F (default setting, user operate instead of the compressor. If outdoor conditions selectable 2-6F) warmer than Stage 1, at which time are not acceptable for free cooling the compressor will the lead unit compressor will switch to compressor automatically operate on compressor Stage 1 partial Stage 2 full capacity.
  • Page 12 3. 1-Stage Compressor Units with Newer are not acceptable for free cooling the compressor will ECONWMT Economizers (See Note A) automatically operate on compressor Stage 1 partial capacity instead of the economizer. stage cooling set point is the setting (SP) input into the controller.

  • Page 13: Heating Sequence Of Operation

    cooling set point is 2F (default setting, user HEATING SEQUENCE OF OPERATION selectable 2-3F) warmer than Stage 2. On a call for 3 Note: All heating sequences for air conditioners with Stage cooling the blower of the lag unit will come on electric heat or heat pumps will automatically operate immediately (if not already on –...

  • Page 14: Operating System

    2. Click Network & Sharing Center. Bard part number is CB4000. Either the –A or –B alarm 3. Click Local Area Network link. board is required for CB4000 to operate properly. It 4.

  • Page 15: Setpoints Page

    If economizers are used if on or off (Note: f. Lock/Unlock Controller older style EIFM economizers require a simple g. Advance Lead to Lag Unit relay kit for this feature to work, Bard Part h. Comfort Mode Number 8620-221) i. Restore System Defaults 2.

  • Page 16: Controller Wiring

    CONTROLLER WIRING GENERATOR RUN FEATURE If desired, the MC4001 controller can be signaled The MC4001 can be used for controlling two (2) air conditioners with or without economizers. It can from a standby generator system to lockout (disable also be configured for two (2) heat pumps without operation) of the lag air conditioning system.
  • Page 17 TABLE 1 HOOK-UP DIAGRAM SELECTION TABLE – REFERENCE FIGURE 1 SHOWN Newer Newer Older EIFM Older EIFM ECONWMT MC4001-A or MC4001-B ECONWMT System Model Economizer – No Economizer with Economizer Economizer – No with Communication Type Series Economizer Communication Communication with CB4000 Board –...
  • Page 18 FIGURE 2 CONTROLLER CONNECTIONS 2-STAGE (WA*S/WL*S SERIES) AIR CONDITIONERS – NO ECONOMIZERS Manual 2100-614C Page 18 of 40...
  • Page 19 FIGURE 3 CONTROLLER CONNECTIONS 1-STAGE (WA/WL, W**A/W**L SERIES) AIR CONDITIONERS – NO ECONOMIZER WITH ALARM BOARD & CB4000 COMMUNICATION BOARD Manual 2100-614C Page 19 of 40...
  • Page 20 FIGURE 4 CONTROLLER CONNECTIONS 2-STAGE (WA*S/WL*S SERIES) AIR CONDITIONERS – NO ECONOMIZERS WITH ALARM BOARD & CB4000 COMMUNICATION BOARD Manual 2100-614C Page 20 of 40...
  • Page 21 FIGURE 5 CONTROLLER CONNECTIONS 1-STAGE (WA/WL, W**A/W**L SERIES) AIR CONDITIONERS WITH OLDER STYLE EIFM ECONOMIZERS Manual 2100-614C Page 21 of 40...
  • Page 22 FIGURE 6 CONTROLLER CONNECTIONS 2-STAGE (WA*S/WL*S SERIES) AIR CONDITIONERS WITH OLDER STYLE EIFM ECONOMIZERS Manual 2100-614C Page 22 of 40...
  • Page 23 FIGURE 7 CONTROLLER CONNECTIONS 1-STAGE (WA/WL, W**A/W**L SERIES) AIR CONDITIONERS WITH OLDER STYLE EIFM ECONOMIZERS AND WITH ALARM BOARD & CB4000 COMMUNICATION BOARD Manual 2100-614C Page 23 of 40...
  • Page 24 FIGURE 8 CONTROLLER CONNECTIONS 2-STAGE (WA*S/WL*S SERIES) AIR CONDITIONERS WITH OLDER STYLE EIFM ECONOMIZERS AND WITH ALARM BOARD & CB4000 COMMUNICATION BOARD Manual 2100-614C Page 24 of 40...
  • Page 25 FIGURE 9 CONTROLLER CONNECTIONS 1-STAGE (WA/WL, W**A/W**L SERIES) AIR CONDITIONERS WITH (ECONWMT) ECONOMIZERS Manual 2100-614C Page 25 of 40...
  • Page 26 FIGURE 10 CONTROLLER CONNECTIONS 2-STAGE (WA*S/WL*S SERIES) AIR CONDITIONERS WITH (ECONWMT) ECONOMIZERS Manual 2100-614C Page 26 of 40...
  • Page 27 FIGURE 11 CONTROLLER CONNECTIONS 1-STAGE (WA/WL, W**A/W**L SERIES) AIR CONDITIONERS WITH (ECONWMT) ECONOMIZERS AND WITH ALARM BOARD & CB4000 COMMUNICATION BOARD Manual 2100-614C Page 27 of 40...
  • Page 28 FIGURE 12 CONTROLLER CONNECTIONS 2-STAGE (WA*S/WL*S SERIES) AIR CONDITIONERS WITH (ECONWMT) ECONOMIZERS AND WITH ALARM BOARD & CB4000 COMMUNICATION BOARD Manual 2100-614C Page 28 of 40...
  • Page 29 FIGURE 13 CONTROLLER CONNECTIONS HEAT PUMPS – NO ECONOMIZER Manual 2100-614C Page 29 of 40...
  • Page 30 FIGURE 14 CONTROLLER CONNECTIONS HEAT PUMPS – NO ECONOMIZER WITH OPTIONAL ALARM BOARD & CB4000 COMMUNICATION BOARD Manual 2100-614C Page 30 of 40...

  • Page 31: Alarm Wiring

    E and F from the air conditioner 24V terminal NOTE: The LED display board can be replaced if block to the matching terminals on the alarm board. needed independently of the alarm board. Bard part number is 8612-022. Note: The E and F wiring connections at the 24V...
  • Page 32 FIGURE 15 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 33 FIGURE 16 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 34: Programming Instructions

    PROGRAMMING INSTRUCTIONS To change the setting of any step, press the CHANGE button and the display will stop flashing, allowing change To swap lead and lag unit positions, press the ADVANCE to the setting by using the DOWN or UP arrows. When button.
  • Page 35 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 Stage Stage Stage Stage “Program” button and release it when “Pro9” appears.

  • Page 36: Parts List Description Diagram

    FIGURE 17 PARTS LIST DESCRIPTION DIAGRAM MIS-2954 B Manual 2100-614C Page 36 of 40...
  • Page 37 Parts List Dwg. Part No. Description MC4001 MC4001-A MC4001-AC MC4001-B MC4001-BC AB3000-A AB3000-B CB4000 127-343-4 Control Box 8612-040 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 8612-023A Sensor...
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