Related Manuals for Bard MC500 Series
Summary of Contents for Bard MC500 Series
- Page 1 Literature Assembly 911-0836 Contains the following: 2100-746 (D) MC500 Installation Instructions 2100-748 MC500 Quick Start Guide 4093-161 Wiring Diagram 4093-162 Wiring Diagram...
- Page 3 INSTALLATION AND OPERATION INSTRUCTIONS WITH REPLACEMENT PARTS LIST MC5000 Series Controller Models: MC5300: Controls up to Three Units MC5600: Controls up to Six Units Bard Manufacturing Company, Inc. Manual: 2100-746D Bryan, Ohio 43506 Supersedes: 2100-746C www.bardhvac.com Date: 2-5-21 Page 1 of 59...
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Page 4: Table Of Contents
CONTENTS General Information ............4 Pre-Purge Sequence of Operation .......20 Shipping Damage ............4 Lead/Lag (Rotation) ..........21 General ..............4 Cooling Sequence of Operation .........21 Theory of Operation ............4 Heating Sequence of Operation .........21 Controller Certifications ..........4 Electric Heat ............21 Getting Other Information and Publications ....4 Heat Pumps .............21 Control System ............ - Page 5 Current software Table 2 Alternating Logic: 3-Unit System with versions and installation instructions are 2 Stage Compressor and Economizer ..28 available on the Bard website at http://www. Table 3 Non-Alternating Logic: 3-Unit System with 2 Stage Compressor and Economizer ..28 bardhvac.com/software-download/...
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Page 6: General Information
ICES – 003: 2016. All models should be the same (humidification and dehumidification options can vary). It can provide total Bard Manufacturing Company, Inc. redundancy for the structure and equal wear on units. Bryan, OH 43506 Units with or without economizers can be used and it is recommended that units be equipped alike. -
Page 7: Control System
The optional temperature/humidity sensor should be Control System remotely mounted in a location that is least likely to This Bard control system can be composed of a variety be affected by open doors, rack-mounted fans, radiant of non-PLC operated Bard wall-mount air conditioners heat sources, etc. -
Page 8: Installation
INSTALLATION FIGURE 1 Typical MC5000 Series Controller Component Location Secondary I/O Control Board P/N 8612-067 (MC5600 only) Secondary Alarm Board P/N 8612-069 (MC5600-BC only) Display to I/O Cable Main I/O Control Board P/N 8612-066 (All models) Main Alarm Board P/N 8612-068 (MC5300-BC and MC5600-BC) Temperature/Humidity... -
Page 9: Mc5000 Series Controller
Use mounting hardware capable of holding the IMPORTANT: When working with circuit board weight of the controller such as 1/4" diameter fasteners components, Bard recommends the use of with flat washers that are 1" outside diameter (OD). an anti-static wrist strap to prevent static Knockouts provided on the base, sides and top of the electricity shorts to electronic controls. -
Page 10: Installing Remote Temperature Sensor(S)
095 with 35' of 24 gauge 2-conductor shielded cable is The sensor can be utilized as either an indoor or outdoor available from Bard. This sensor is a 10kΩ NTC sensor. temperature sensor. REM 1 is to be used only for an Mount the remote temperature sensor(s) in a location additional indoor temperature sensor. -
Page 11: Engineered Features
ENGINEERED FEATURES Touch Screen The MC5000 series controller incorporates a 6.2" x 3.5" touch screen interface for user interaction (see Figure 5). It is not necessary to use only fingers on this interface as the display will respond to pressure from almost any type of object. -
Page 12: Main Control Board (Mc5300 And Mc5600)
Main Control Board (All MC5300 and MC5600 Models) The Main Control Board (P/N 8612-066) has connection points provided for one to three wall-mount air conditioners or heat pumps. Units can include optional mechanical dehumidification, electric heat strips, economizer and ventilation. Inputs are also provided for theft, vent, generator, emergency off and two remote temperature sensors. The shelter inputs (theft, vent, generator, emergency off and remote sensor 1 and 2) are connected to the main control board next to Unit 3 terminal strip. -
Page 13: Secondary Control Board (Mc5600 Only)
Secondary Control Board (MC5600-C and MC5600-BC Models Only) The Secondary Control Board (P/N 8612-067) provides connection points for up to three additional wall-mount air conditioners or heat pump units labeled System 4, 5 and 6. All units can include optional mechanical dehumidification, electric heat strips, economizer and ventilation. -
Page 14: Main Alarm Board (Mc5300-Bc And Mc5600-Bc)
Main Alarm Board (MC5300-BC and MC5600-BC Models Only) The Main Alarm Board (P/N 8612-068) allows for Normally Open or Normally Closed dry contacts to be used for remote monitoring of equipment and the controller. The Main Alarm Board will be used only with either the MC5300-BC or MC5600-BC models to monitor alarms for Systems 1, 2 and 3. -
Page 15: Secondary Alarm Board (Mc5600-Bc Only)
Secondary Alarm Board (MC5600-BC Models Only) The Secondary Alarm Board (P/N 8612-069) allows for Normally Open or Normally Closed dry contacts to be used for remote monitoring of equipment and the controller. The Secondary Alarm Board will be used only with the MC5600-BC models to monitor alarms for Systems 4, 5 and 6. -
Page 16: Setup
Not Connected Determines configuration of the O/B terminal 10. REM 2 Temperature Sensor – Indoor Temperature, (energized in cooling or heating). NOTE: All Bard Outdoor Temperature or Not Connected wall-mount heat pumps require the reversing valve to energize in HEATING mode. -
Page 17: System Setup Menu
9. Press UP/DOWN buttons to scroll to number of 7. Press UP/DOWN arrow to select Month. dehumidifier units; press Next button. 8. Press UP/DOWN arrow to select Day. 10. Press Yes or No button to select if humidifier is 9. Press UP/DOWN arrow to select Year. present;... -
Page 18: Comfort Mode Heating Set Points
Comfort Mode Heating Set Points 4. Press UP/DOWN arrow to scroll to Cooling Stage Off Differential Set Point Value. 1. Press Menu button on Home screen. 5. Press Confirm button. 2. Press Set Points button. 6. Press Home button. 3. Press UP/DOWN arrow to scroll to Comfort Mode Heating Set Point. -
Page 19: Humidification Interstage Differential Set Points
Humidification Interstage Differential Low Temperature Alarm Level Set Set Points Points 1. Press Menu button on Home screen. 1. Press Menu button on Home screen. 2. Press Set Points button. 2. Press Set Points button. 3. Press UP/DOWN arrow to scroll to Humidification 3. -
Page 20: Operation
68°F (20°C), for 1 hour installed in conduit for protective purposes. • Deadband (difference between cooling and heating NOTE: Bard recommends adding at least one remote set points): 4°F + ISD sensor for redundancy. If either sensor fails, the other will take over. -
Page 21: Basic Controller Input/Output Specifications
4-6) installed, it can be field installed at any time. Each Unit Outputs The Bard part number for the MC5300 alarm board is 8612-068. The Bard part number for R – 24VAC hot the MC5600 alarm board is 8612-069. -
Page 22: Mc5000B W/Enhanced Version Alarm Board
Staging Delay Periods MC5000-B w/Enhanced Version Alarm Board (Additional Outputs) plus MC5000-A Inputs/Outputs The following delays are built in for both cooling and Alarm relays can be wired for NO (close on alarm) or heating: NC (open on alarm) strategy. Alarm relays can be used Stage 1 individually if there are enough available building 0 seconds for blower (if not already on as continuous) -
Page 23: Lead/Lag Rotation
Lead/Lag Rotation stage for staging logic. If units are configured for heat pump operation in conjunction with electric heat, the Pressing the Advance Lead button on the home electric heat (W1 & W2) will be added as additional screen will cause the lead to advance to the next unit. stages of heat with preference given to heat pump This may be useful during service and maintenance stages. - Page 24 TABLE 1 MC5000 Series Set Points/Defaults/User Settings Record Set Point (SP) or Item Name Current Range Default User Settings Cooling Set Point 4° above Heating SP to 90°F Heating Set Point 32°F to 4° below Cooling SP Comfort Mode Cooling Set Point 4°...
- Page 25 TABLE 1 (cont.) MC5000 Series Set Points/Defaults/User Settings Record Set Point (SP) or Item Name Current Range Default User Settings Emergency Off, Gen Run, High Humidity Emergency Auxiliary Out Configuration Alarm, Dust Alarm or Dehum Active System Setup Items Languages English, French or Spanish English Password Protection...
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Page 26: Humidity Control Option
Humidity Control Option Dehumidification Sequence Mechanical Sequence (see Figure 6) The controller will use terminal D for control of the dehumidification operation on each configured unit. The controller will energize D when dehumidification is required. Terminal D will be de-energized once dehumidification is no longer required or available. -
Page 27: Synchronized Sequence
Staging Synchronized Sequence (see Figure 7) The controller will use 50% of the configured units Staging in the MC5000 series controller can be for heating and 50% of the configured units for configured by the user in an alternating or non- cooling for Synchronized Dehumidification. -
Page 28: Heating Staging
Heating Staging NOTE: If a Unit Power Loss or Lock Out Alarm is present, the unit in alarm will not be considered in Heating staging begins when the space temperature staging sequence—it will be skipped. is less than the heating set point. Staging will increase when the space temperature is less than the Adjustable Interstage Differential (.5°... -
Page 29: The Advantages Of Twinning: Pairs
The Advantages of Twinning: Pairs The Advantages of Twinning: Triples Using the same number of units as shown in Figure 9 Using the same number of units and selecting the (six units w/economizers) and selecting the Pairs option Triples option in Twinning, the number of stages can be in Twinning, the number of stages can be reduced to reduced to four and the space temperature narrowed six by engaging two units per stage (see Figure 10). -
Page 30: Humidification/Dehumidification Demand Staging
Humidification/Dehumidification Demand Staging Non-Alternating Humidification staging begins when the space humidity Non-Alternating Logic stage increases will start with is less than the humidification set point. Staging will the lead unit and exhaust all available stages prior to increase when the space humidity is less than the staging the next unit. -
Page 31: Figure 12 Alternating Sequence Cooling
FIGURE 12 Alternating Sequence Cooling Stage Unit 1 Unit 2 Unit 3 Alternating the staging will always bring on ALL economizers (when used and conditions allow) before any compressors are started. If no economizers are installed on single stage units, the mechanical cooling will start in sequence. -
Page 32: Twinning: Simultaneous Unit Operation
Twinning: Simultaneous Unit Operation • Paired – Only available with four or six units. Units will operate in pairs. See Figure 14. • Four total units: Units 1 and 2 will stage • Units operate simultaneously: Off ALL Pairs simultaneously and units 3 and 4 will stage Triples simultaneously. -
Page 33: Triples: Simultaneous Unit Operation
Triples: Simultaneous Unit Operation • Units will stage simultaneously in sets of three. Units 1, 2 and 3 will be one set and units 4, 5 and See Figure 15. 6 will be the second set. Using groups of three for the purpose of staging can •... -
Page 34: Alarm Functionality
Alarm Functionality Emergency Off Alarm If Emergency Off input becomes active, an Emergency All alarms shall have a 5-second delay (alarm criteria Off alarm will be triggered. All outputs to units must be met for 5 seconds) prior to triggering alarm (W1, W2, EC, Y1, Y2, G O/B, A, D and H) will be to prevent nuisance alarming. - Page 35 HVAC Compressor Lockout Alarm Output Logic only will block the logging of the alarm into the alarm log and prevent alarm from being listed If the LOR input for any configured unit becomes in the Active Alarms list. active, an HVAC Compressor Lockout alarm will be triggered.
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Page 36: Test Mode
Test Mode Network/Remote Connectivity Two test modes are available on this controller, Self See Table 5 for the default network settings. Test and Manual Test. The test modes can be accessed TABLE 5 via the Menu button on the Home Screen. Default Network Settings Self Test In Self Test, all functionality configured for each unit... -
Page 37: Webpage Ip Configuration
FIGURE 16 Back of Touch Screen Display SHIELD GROUND SYSTEM RESET SHIELD GND 8612-065 SYS RESET ETHERNET RESET REM U/D ETHERNET RESET USE CR2032 REM U/D SD CARD JUMPER SLOT MIS-4194A Ethernet Reset – Pressing the Ethernet Reset button will revert all IP settings back to the factory default settings. -
Page 38: Webpages
Webpages Webpage Navigational Side Panel Webpage access requires a default username (admin) and password (bard); after logging in, the webpage prompts user to change the password to promote security. Usernames, passwords, and access levels can also be changed on the User Management page. -
Page 39: Modbus
Modbus some of the controller settings without a password. Any access control to the Modbus will be dependent upon To enable Modbus, the user will need to access the the network used to access the controller. Adjustable webpages and enable the feature on the Modbus settings via Modbus are limited to set point type Configuration page located under the Administration configuration and is intended to be primarily used to... - Page 40 Holding High Humidity Alarm Set point int16_t 65 - 95 % RH Register Holding Low Humidity Alarm Set point int16_t 0 - 80 % RH Register Holding Low Temperature Alarm Set point int16_t 28 - 65 °F Register Holding High Temperature 1 Alarm Set point int16_t 70 - 120 °F Register...
- Page 41 Generator Run Alarm 0 (OFF) - 1 (ON) Theft Alarm 0 (OFF) - 1 (ON) Emergency Ventilate Alarm 0 (OFF) - 1 (ON) Local Temperature/Humidity Sensor 0 (OFF) - 1 (ON) Disconnect High Humidity Alarm 0 (OFF) - 1 (ON) Low Humidity Alarm 0 (OFF) - 1 (ON) System 1 - W1 - Electric Heat - Stage 1...
- Page 42 System 3 - Y2 - Compressor - Stage 2 0 (OFF) - 1 (ON) System 3 - G - Blower 0 (OFF) - 1 (ON) System 3 - O/B - Reversing Valve 0 (OFF) - 1 (ON) System 3 - A Terminal 0 (OFF) - 1 (ON) System 3 - D - Mechanical Dehum 0 (OFF) - 1 (ON)
- Page 43 System 5 - Compressor Lockout 0 (OFF) - 1 (ON) System 5 - Dust 0 (OFF) - 1 (ON) System 6 - W1 - Electric Heat - Stage 1 0 (OFF) - 1 (ON) System 6 - W2 - Electric Heat - Stage 2 0 (OFF) - 1 (ON) System 6 - Y1 - Compressor - Stage 1 0 (OFF) - 1 (ON)
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Page 44: Connections Diagrams
CONNECTION DIAGRAMS TABLE 6 Connection Diagram Selection Table Units with CRV-F or Units with CRV-F or ERV-*, ERV-*, No Economizer Economizer/ System Type Model Series No Economizer with without No Balanced Climate Balanced Climate Balanced Climate A/C with Figure 19 Figure 20 Figure 21... -
Page 45: No Ventilation Or Balanced Climate
FIGURE 19 W**A/W**L SERIES UNIT WITH CRV-F OR ERV AND W**A/W**L Series Unit with CRV-F or ERV and No Ventilation or Balanced Climate NO VENTILATION OR BALANCED CLIMATE W**A/W**L SERIES UNIT Balanced 24VAC Climate Disable Filter Emergency Alarm Factory Jumper Switch Shutdown Relay... - Page 46 W**A/W**L SERIES UNIT WITH CRV-F OR ERV AND NO VENTILATION FIGURE 20 WITH BALANCED CLIMATE OPERATION W**A/W**L Series Unit with CRV-F or ERV and No Ventilation with Balanced Climate Remove W**A/W**L SERIES UNIT 24VAC Emergency Balanced Filter Alarm Shutdown Climate Y1-Y2 Switch Relay Factory Jumper...
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Page 47: Figure 21
FIGURE 21 W**A/W**L SERIES UNIT WITH ECONOMIZER W**A/W**L Series Unit with Economizer W**A/W**L SERIES UNIT 24VAC Emergency Filter Alarm Shutdown Switch Relay Factory Jumper (Optional) (Optional) LOW VOLTAGE B/W1 TERMINAL STRIP W1 W2 EC Y1 G O/B FILTER DUST LOR AUX IN EIN NO C NC AUX OUT MC-5300: SYSTEM 1-3... -
Page 48: No Ventilation W/Balanced Climate
FIGURE 22 W**H SERIES UNIT WITH CRV-F OR ERV AND W**H Series Unit with CRV-F or ERV and No Ventilation or Balanced Climate NO VENTILATION OR BALANCED CLIMATE W**H SERIES UNIT Balanced 24VAC Climate Disable Filter Emergency Alarm Factory Jumper Switch Shutdown Relay... - Page 49 W**H SERIES UNIT WITH CRV-F OR ERV AND NO VENTILATION FIGURE 23 WITH BALANCED CLIMATE W**H Series Unit with CRV-F or ERV and No Ventilation with Balanced Climate Remove W**H SERIES UNIT 24VAC Emergency Balanced Filter Alarm Shutdown Climate Y1-Y2 Switch Relay Factory Jumper...
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Page 50: W**H Series Unit W/Economizer
FIGURE 24 W**H SERIES UNIT WITH ECONOMIZER W**H Series Unit with Economizer W**H SERIES UNIT 24VAC Emergency Filter Alarm Shutdown Switch Relay Factory Jumper (Optional) (Optional) LOW VOLTAGE B/W1 TERMINAL STRIP W1 W2 BC Y1 G O/B FILTER DUST LOR AUX IN EIN NO C NC AUX OUT MC-5300: SYSTEM 1-3... - Page 51 FIGURE 25 2-STAGE W*SA* SERIES UNIT 2-Stage W*SA* Series Unit with CRV-F or ERV and No Ventilation or Balanced Climate WITH CRV-F OR ERV AND NO VENTILATION OR BALANCED CLIMATE Emergency Balanced W*SA* SERIES UNIT Shutdown Climate Disable 24VAC Filter Alarm Factory Jumper Factory Jumper...
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Page 52: Figure 26
2-STAGE W*SA* SERIES UNIT FIGURE 26 WITH ERV AND BALANCE CLIMATE OPERATION AND 2-Stage W*SA* Series Unit with ERV and Balanced Climate and No CRV-F or Ventilation NO CRV-F OR ECONOMIZER Remove W*SA* SERIES UNIT 24VAC Emergency Balanced Filter Alarm Shutdown Climate Y2-Y3 Switch... -
Page 53: Figure 27
FIGURE 27 2-STAGE W*SA* SERIES UNIT 2-Stage W*SA* Series Unit with Economizer WITH ECONOMIZER W*SA* SERIES UNIT 24VAC Emergency Filter Alarm Shutdown Switch Relay Units w/ Economizer Factory Jumper (Optional) (Optional) must have jumper installed LOW VOLTAGE B/W1 TERMINAL STRIP W2 EC Y1 G O/B FILTER DUST... -
Page 54: Figure 28
FIGURE 28 T**S SERIES UNITS 2-Stage T**S Series Unit with No CRVMWH-* or CHCRV-* WITH NO CRVMWH-* OR CHCRV-* T**S SERIES UNIT Factory 24VAC Emergency Installed Shutdown Jumper Factory Jumper LOW VOLTAGE TERMINAL STRIP W1 W2 EC Y1 G O/B FILTER DUST LOR AUX IN EIN NO C NC... -
Page 55: Figure 29
FIGURE 29 C**H SERIES UNIT 2-Stage C**H Series Unit with No CRVMWH-* or CHCRV-* WITH NO CRVMWH-* OR CHCRV-* C**H SERIES UNIT Factory 24VAC Emergency Filter Installed Shutdown Switch Jumper Factory Jumper (Optional) LOW VOLTAGE TERMINAL STRIP W1 W2 EC Y1 G O/B FILTER DUST LOR AUX IN EIN... -
Page 56: Figure 30
FIGURE 30 T**H SERIES UNITS T**H Series Unit with No CHCRV-* WITH NO CHCRV-* T**H SERIES UNIT Factory Factory 24VAC Emergency Installed Installed Shutdown Jumper Jumper Factory Jumper LOW VOLTAGE TERMINAL STRIP W1 W2 EC Y1 G O/B FILTER DUST LOR AUX IN EIN NO C NC AUX OUT... -
Page 57: Troubleshooting
TROUBLESHOOTING Checking Remote (P/N 8408-061) or Extreme Conditions Local Temperature/Humidity Sensor If the temperature/humidity sensor is exposed to (P/N 8408-059) extreme conditions (in excess of 158°F or below -40°F) for an extended amount of time, the RH offset may vary One local temperature/humidity sensor (P/N 8408-059) (up to ±4%). -
Page 58: Checking Remote Temperature Sensor 8301-095
Checking Remote Temperature Sensor (P/N 8301-095) Outside Unit Circuit 1. Disconnect temperature sensor from board. 4. If sensor resistance reads very low, sensor is shorted and will not allow proper control. 2. Use an ohmmeter to measure the resistance of the sensor. -
Page 59: Troubleshooting Alarms
Troubleshooting Alarms Low Temp Alarm This alarm indicates that there is a lower space temperature than is desired. The space temperature should be verified and compared to the controller reading. If the space temperature reading is incorrect ensure there is no offset applied and then the wiring to the temperature sensors installed should be verified. - Page 60 Ventilation Alarm This alarm indicates that the Vent inputs have continuity. The function of the device connected to the Vent inputs should be verified first. If all device functionality is correct and the alarm is still present the wiring between the device and controller should be checked. Prior to replacing the I/O board all wiring should be removed from the Vent inputs.
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Page 61: Mc5000 Replacement Parts List
MC5000 SERIES CONTROLLER REPLACEMENT PARTS LIST Dwg. No. Part No. Description S8612-065 Display Board w/Ethernet 8612-066 Main I-O Board 8612-067 Secondary I-O Board 8612-068 Main Alarm Board 8612-069 Secondary Alarm Board 8301-092 Bezel Front 8301-093 Bezel Back 8301-094 Cover for Temperature/Humidity Sensor 1171-073 1/4 Turn Latch Cam 1171-074... - Page 63 O/B during cooling or heating; press Determines configuration of the O/B terminal Next button. (energized in cooling or heating). NOTE: All Bard 7. Press 2, 1 or 0 button for the number of electric wall-mount heat pumps require the reversing valve heat stages;...
- Page 64 10. Press Yes or No button to select if humidifier is 10. Press button to select temperature sensor logic present; press Next button. choice; press Next button. 11. Press Configure to configure any of the following: 11. Press button to select REM 1 temperature sensor Emergency Off alarm, Generator Run alarm, High choice;...
- Page 66 MC5300 COMPONENTS BALLOON BARD P/N # WHERE USED 8612-065 ALL MC5*00 MODELS 8612-066 ALL MC5*00 MODELS 8612-068 MC5300-BC EMERGENCY OFF JUMPER TEMP./HUMID SENSOR 4093-161...
- Page 68 MC5300 COMPONENTS BALLOON BARD P/N # WHERE USED 8612-065 ALL MC5*00 MODELS 8612-066 ALL MC5*00 MODELS 8612-068 MC5300-BC 8612-067 MC5600-C , -BC 8612-069 MC5600-BC EMERGENCY OFF JUMPER TEMP./HUMID SENSOR 4093-162...