INSTALLATION INSTRUCTIONS & REPLACEMENT PARTS LIST MC4000 SERIES SOLID STATE DUAL UNIT LEAD/LAG CONTROLLER Bard Manufacturing Company, Inc. Manual No.: 2100-563 Bryan, Ohio 43506 Supersedes: File: Vol. III Tab 19 Since 1914...Moving ahead, just as planned. Date: 06-17-11 Manual 2100-563...
CONTENTS Getting Other Information and Publications Figures MC4000 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 ....
This ISM device also complies with Canadian ICES – 001. units. It can be used with units with or without economizers and it is recommended that both units be Bard Manufacturing Company, Inc. equipped alike. Bryan, OH 43506 Manual 2100-563...
200 feet. Use 18-gauge twisted pair •Space temperature sensors: 1 local is standard, will accept up with soldered connections. to 2 optional 25' remote sensors, Bard part number 8612-023. When multiple sensors are used, temperatures are averaged TEMPERATURE SENSOR LOGIC •Controller Enclosure: 20-gauge pre-painted steel, 9.25"W x...
C – 24VAC common Unit #1 NOTE: If this alarm board was not originally factory R – 24VAC hot installed, it can be field-installed at anytime. Bard G – fan (Form A, NO) part number is AB3000-A. Y1 – 1 -stage cool (Form A, NO) Y2 –...
ADVANCE (SWAP) LEAD/LAG UNIT FEATURE IMPORTANT NOTE: Older Bard R-22 models employ an electronic blower control that has a 60-second Pressing the Advance button for one (1) second will cause blower off-delay. Current production R-410A models do the lead and lag units to change positions.
GENERAL PROGRAMMING OVERVIEW MC4000 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.
H1 and H2 on the main controller cooling the blower of the lead unit will come on board. Recommended Bard Part #8403-038 (H600A immediately (if not already on – See Blower Operation), 1014). Both HVAC units must be equipped with electric and the Stage 1 LED will blink for 10-seconds before heat for this sequence to work properly.
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cooling set point is 2F (default setting, user selectable cooling set point is 4F (default setting, user selectable 2- 2-3F) warmer than Stage 3. On a call for 4th Stage 6F) warmer than Stage 1. On a call for 2 Stage cooling the cooling the Stage 4 LED comes on solid (no delay), and blower of the lag unit is turned on (if not already on –...
6. 2-Stage Compressor Units with Newer COOLING OPERATING SEQUENCES FOR ECONWMT Economizers (See Note A) NON-ALTERNATING LEAD/LEAD/LAG/ LAG CONFIGURATION stage cooling set point is the setting (SP) input into the controller. Factory default is 77F (25C). On a call Note: Heat pumps cannot be operated in Non-Alternating for cooling the blower of the lead unit will come on Lead/Lead/Lag/Lag sequence.
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cooling set point is 2F (default setting, user selectable cooling set point is 2F (default setting, user selectable 2-3F) warmer than Stage 2. On a call for 3 Stage 2-3F) warmer than Stage 3. On a call for 4 Stage cooling the blower of the lag unit is turned on (if not cooling the lag unit Y2 cooling output turns on already on –...
5. 2-Stage Compressor Units with Newer HEATING SEQUENCE OF OPERATION ECONWMT Economizers (See Note A) Note: All heating sequences for air conditioners with stage cooling set point is the setting (SP) input into electric heat or heat pumps will automatically operate in the controller.
2. Refrigerant lockout inputs. 3. If economizers are used an additional 24V signal 1. Type in “Admin” for the user name and “Bard” for wire is required from each air conditioner to the the password. These are not case sensitive. Hit controller system.
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If economizers are used if on or off (Note: a. Low temperature alarm setpoint older style EIFM economizers require a simple b. High temperature alarm #1 setpoint relay kit for this feature to work, Bard Part c. High temperature alarm #2 setpoint Number 8620-221) 3. System Overrides 2.
CONTROLLER WIRING GENERATOR RUN FEATURE The MC4000 can be used for controlling two (2) air If desired, the MC4000 controller can be signaled from a conditioners with or without economizers. It can also be standby generator system to lockout (disable operation) configured for two (2) heat pumps without economizers.
FIGURE 4 CONTROLLER CONNECTIONS 2-STAGE (WA*S/WL*S SERIES) AIR CONDITIONERS – NO ECONOMIZERS WITH ALARM BOARD & CB4000 COMMUNICATION BOARD Manual 2100-563 Page 20 of 40...
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 2100-563 Page 23 of 40...
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 2100-563 Page 24 of 40...
FIGURE 9 CONTROLLER CONNECTIONS 1-STAGE (WA/WL, W**A/W**L SERIES) AIR CONDITIONERS WITH (ECONWMT) ECONOMIZERS Manual 2100-563 Page 25 of 40...
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FIGURE 10 CONTROLLER CONNECTIONS 2-STAGE (WA*S/WL*S SERIES) AIR CONDITIONERS WITH (ECONWMT) ECONOMIZERS Manual 2100-563 Page 26 of 40...
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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 2100-563 Page 27 of 40...
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FIGURE 12 CONTROLLER CONNECTIONS 2-STAGE (WA*S/WL*S SERIES) AIR CONDITIONERS WITH (ECONWMT) ECONOMIZERS AND WITH ALARM BOARD & CB4000 COMMUNICATION BOARD Manual 2100-563 Page 28 of 40...
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FIGURE 13 CONTROLLER CONNECTIONS HEAT PUMPS – NO ECONOMIZER Manual 2100-563 Page 29 of 40...
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FIGURE 14 CONTROLLER CONNECTIONS HEAT PUMPS – NO ECONOMIZER WITH OPTIONAL ALARM BOARD & CB4000 COMMUNICATION BOARD Manual 2100-563 Page 30 of 40...
-B alarm board and connection of terminals NOTE: The LED display board can be replaced if E and F from the air conditioner 24V terminal block to needed independently of the alarm board. Bard the matching terminals on the alarm board. part number is 8612-022.
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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.
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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.
To change the setting of any step, press the CHANGE PROGRAMMING INSTRUCTIONS button and the display will stop flashing, allowing To swap lead and lag unit positions, press the change to the setting by using the DOWN or UP arrows. ADVANCE button.
MC4000 Series Solid State Dual Unit Lead Lag Controller CLIMATE CONTROL SOLUTIONS 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”...
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FIGURE 17 PARTS LIST DESCRIPTION DIAGRAM MIS-2954 Manual 2100-563 Page 36 of 40...