Bard FUSION-TEC WR36BPB Service Instructions Manual Download

Page: 39 / 56

Manual 2100-695C

Page

39 of 56

FIGURE 59

FUSION-TEC WR Series Wall-Mount Unit Control Board 8301-068-004*

FieldBus2

Rx-/Tx-

Rx+/Tx+

GND

NO1
NO2
NO3

NO4
NO5
NO6

NO7

NC7

NO8
NO9

EEV1

DI1
DI2
DI3
DI4
DI5
DI6
DI7
GND

B1
B2
B3
B4
B5
B6
B7
GND

+Vdc

GND
Y1
Y2
Y3

B8
B9

Control
Stand-by

BMS Card

Jumper

+ Communication Wire

– Communication Wire

24VAC +

To CCM Y

Compressor Staging

Solenoid

24VAC +

Stage 1 Heat

24VAC +

Dirty Filter Light

Expansion Valve:

Purple, Yellow – 40 ohms

Red/White – 40 ohms
Red/Green – 40 ohms

White/Green – 80 ohms

Blue/Yellow – 83 ohms

24VAC Hot

24VAC Common

Unit Disable Relay/Switch

Dirty Filter Switch

Compressor Alarm Relay

Micro USB

Damper Blade Switch

Airflow Switch

Digital Ground

Liquid Line Temp Sensor

Outdoor Air Temp Sensor

Return Air Temp Sensor

Supply Air Temp Sensor

Outdoor Humidity Sensor

Dust Sensor Board

Suction Temp Sensor

Analog Ground

24VDC to Outdoor Humidity Sensor

Liquid Pressure Transducer

Suction Pressure Transducer

Ground

Blower Motor Signal

Condenser Fan Motor Signal

* Asterisk represents letter at end of part number that designates software version (Example: 8301-068-004

Power Loss Relay (if equipped)

Damper Actuator Signal

5VDC

See Table 11 on page 40 for information on control board terminal functions.

Summary of Contents for FUSION-TEC WR36BPB

Page 1: ...06 www bardhvac com Manual 2100 695C Supersedes 2100 695B Date 7 2 21 SERVICE INSTRUCTIONS FUSION TEC Wall Mount Air Conditioner NOTE LC6000 controller is required for operation when WR BP units are u...

Page 2: ...ition Alarm 19 EEV Operation 20 EEV Superheat Control 20 Additional EEV Alarms 20 Low Superheat Alarm 20 Indoor Airflow 20 Indoor Airflow Components 20 Blower 20 Blower Status Switch 22 Blower Status...

Page 3: ...re 31 Putting Blower Output into Override Mode 20 Figure 32 Dirty Filter Switch Blower Status Switch 22 Figure 33 Verifying Differential Airflow Status 22 Figure 34 Adjusting Air Flow Alarm Delay 22 F...

Page 4: ...on is made See Additional Publications for information on codes and standards Sizing of systems for proposed installation should be based on heat loss and heat gain calculations made according to meth...

Page 5: ...s to be limited to the most extreme situations DANGER signs should not be used for property damage hazards unless personal injury risk appropriate to these levels is also involved WARNING Indicate s a...

Page 6: ...viewed and adjusted from the TEC EYE display The program and operating parameters are permanently stored on FLASH MEMORY in case of power failure The TEC EYE connects to the wall mount unit control bo...

Page 7: ...RAT mixed air temperature MAT supply air temperature SAT outdoor air temperature OAT outdoor air humidity OAH and outdoor dew point ODP conditions Blower speed condenser fan speed damper position and...

Page 8: ...re 3 Press the ENTER key when the desired icon is displayed FIGURE 3 Quick Menu Icons Alarm Log Information Setpoints NOTE Screenshots shown in this manual reflect default settings when applicable Qui...

Page 9: ...24 Hour Operation Software Version The Software Version screen displays the model number of the unit as well as all software version information for the PLC see Figure 9 This information can be used...

Page 10: ...x 1 2 3 14 depending on the number of units The wall mount unit address is displayed in the upper right corner on the Status screen on the TEC EYE display see Figure 1 on page 6 To change the unit add...

Page 11: ...allowed for heating stage Reset to Factory Defaults To reset to factory default settings 1 Press MENU key to go to the Main Menu screen 2 Use UP or DOWN keys and ENTER key to enter ENGINEER password...

Page 12: ...e ALARM function key As an option an alarm condition may also be enunciated by an audible alarm signal An alarm is acknowledged by pressing the ALARM key This calls up alarm display screen s that prov...

Page 13: ...air can be made Zone When paired with a supervisory controller that uses zones to control groups of wall units this unit uses the zone setting to relay to the supervisory controller what zone it is se...

Page 14: ...int Deadband Off On 55 F 56 F 57 F 58 F 59 F 60 F 61 F 62 F 63 F 64 F 65 F 66 F Heat Stage 1 Setpoint 2 Press ENTER key to scroll to Cool Setpoint or Heat Setpoint see Figure 4 on page 8 3 Press UP or...

Page 15: ...ial the unit will enable electric heat stage 2 if available Each stage will then be disabled when the return air temperature reaches the setpoint plus the stage off differential Staging The unit will...

Page 16: ...age 3 differentials 11 Press ESCAPE key several times to return to Main Menu screen Dehumidification The unit uses a dehumidification sequence cycling dehumidification that does not require the electr...

Page 17: ...he return air sensor is used to determine operation of the cycling dehumidification When the unit enters cycling dehumidification mode and the return temperature is above 55 F the unit compressor will...

Page 18: ...temperatures during this process 1 From the Status screen press UP or DOWN key until Quick Menu displays Information icon Press ENTER key 2 Press UP or DOWN keys to scroll to EEV 1 Circuit and EVD 1 C...

Page 19: ...ction Temperature Alarm When the suction temperature sensor value is out of range 41 0 to 303 0 F the controller will generate a sensor failure alarm to indicate the sensor is not working properly Thi...

Page 20: ...r is controlled by a 0 10v signal provided from the controller This 0 10v signal is converted to a PWM signal with an adapter The blowers on both the WR36BP and WR58BP models use a 10 diameter wheel T...

Page 21: ...e Part Load Cooling 54 0 5 4 v 1100 Standard Full Load Cooling 63 0 6 3 v 1200 Standard Part Load Cooling 43 0 4 3 v 950 Economizer Standard Economizer High S T 90 0 63 0 9 0 v 6 3 v 1450 1200 Heating...

Page 22: ...ss UP or DOWN keys and ENTER key to enter USER password 2000 3 Press UP or DOWN keys to scroll to System Config press ENTER key 4 Press UP or DOWN keys to scroll to Alarm Setup A8 5 Press ENTER key to...

Page 23: ...h sensible mode will be overridden by the controller operation To change these settings 1 Press MENU key to go to the Main Menu screen 2 Press UP or DOWN keys and ENTER key to enter TECHNICIAN passwor...

Page 24: ...icate the sensor is not working properly This alarm is fixed and cannot be adjusted Condenser Fan Condenser Fan Components Condenser Fan The unit is equipped with a condenser fan that is driven by an...

Page 25: ...liquid side system pressures This information is used to indicate when outdoor coil cleaning is necessary based on outdoor conditions and system pressures The sensor is also used to adapt the condens...

Page 26: ...he fan will control to is determined by the outdoor air temperature The unit will allow the liquid line pressure setpoint to increase for high ambient scenarios or decrease for low ambient scenarios B...

Page 27: ...ification of proper rotation must be made at the time the equipment is put into service If improper rotation is corrected at this time there will be no negative impact on the durability of the compres...

Page 28: ...oses it will then restart the compressor after the delay on break setting has expired on the device If the switch trips again during the same Y call the compressor will be de energized The ALR termina...

Page 29: ...rm When the wall mount unit receives a signal from the compressor control module CCM indicating a high pressure event the wall mount unit will generate an alarm Upon receiving the alarm the wall mount...

Page 30: ...al times to return to Main Menu screen Additional Compressor Alarms Refrigerant Low Pressure Alarm When the suction pressure transducer indicates a pressure value below the low pressure alarm setpoint...

Page 31: ...to adjust the value to the desired value 8 Press ENTER key to save the value and move cursor back to top of screen NOTE The sensor can be disabled if required for troubleshooting 9 Press ENTER key to...

Page 32: ...e is disabled by default but is available if needed To enable disable adjust the minimum damper position 1 Press MENU key to go to the Main Menu screen 2 Press UP or DOWN keys and ENTER key to enter T...

Page 33: ...he controller Troubleshooting information for this sensor is included in the Troubleshooting section of this manual The outdoor temperature can be verified by 1 Press MENU key to go to the Main Menu s...

Page 34: ...mperature of the unit The temperature is measured with a 10k ohm NTC thermistor The supply air temperature can be verified by 1 Press MENU key to go to the Main Menu screen 2 Press UP or DOWN keys and...

Page 35: ...alculated dew point are considered for economizer operation on a free cooling call To change the economizer type and setpoints 1 Press MENU key to go to the Main Menu screen 2 Press UP or DOWN keys an...

Page 36: ...UP or DOWN keys to change the economizer Delay parameter to the desired value 9 Press ENTER key to save the value 10 Press ESCAPE key several times to return to Main Menu screen NOTE The economizer d...

Page 37: ...tering the model number only valid model number entries will be accepted by the PLC To update model serial numbers 1 Press MENU key to go to the Main Menu screen 2 Press UP or DOWN keys and ENTER key...

Page 38: ...s relay in the wall mount unit will be energized and will only allow the blower and economizer to run while powering the controller The inverter converts either 24 VDC or 48 VDC depending on the model...

Page 39: ...Blue Yellow 83 ohms 24VAC Hot 24VAC Common Unit Disable Relay Switch Dirty Filter Switch Compressor Alarm Relay Micro USB Damper Blade Switch Airflow Switch Digital Ground Liquid Line Temp Sensor Outd...

Page 40: ...tdoor Humidity Sensor Analog Input 4mA to 20mA B6 Dust Sensor Board Analog Input 0 5VDC B7 Suction Temperature Sensor Analog Input 10K Ohm Curve J GND Analog Ground VDC 24VDC to Outdoor Humidity Senso...

Page 41: ...ckeye Gray Baked Enamel Finish 5 Desert Brown Baked Enamel Finish 8 Dark Bronze Baked Enamel Finish PLACEHOLDER X Future Use COIL AND UNIT COATING OPTIONS X Copper Aluminum Evaporator Coil Copper Alum...

Page 42: ...to insure optimal system performance Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction Safety Practices 1 Never mix R 410A with other refrigerants 2...

Page 43: ...142 564 80 67 Low Side High Side 139 297 140 320 141 343 143 368 144 394 145 422 147 450 148 480 149 511 150 544 152 578 85 72 Low Side High Side 144 307 145 331 146 355 148 381 149 408 150 437 152 46...

Page 44: ...an individual unit to be disconnected from the Bard Guard security system for an extended period of service time longer than the maximum 250 minutes disarm time place a jumper across the appropriate...

Page 45: ...e The humidity sensor is connected to the sensor control board via the J13 connector The thermocouple wires are loose in the sensor housing and require a butt splice connector or wire nut to connect t...

Page 46: ...39 3 9 24 676 40 4 4 24 063 41 5 0 23 467 42 5 6 22 887 43 6 1 22 323 44 6 7 21 775 45 7 2 21 242 46 7 8 20 724 47 8 3 20 220 48 8 9 19 730 49 9 4 19 253 50 10 0 18 789 Temperature Resistance F C 51...

Page 47: ...20 78 16 480 79 16 640 80 16 800 81 16 960 82 17 120 83 17 280 84 17 440 85 17 600 86 17 760 87 17 920 88 18 080 89 18 240 90 18 400 91 18 560 92 18 720 93 18 880 94 19 040 95 19 200 96 19 360 97 19 5...

Page 48: ...ed to override the output to a test signal See Figure 63 for DIP switch output configuration NOTE If any DIP switches are disrupted they will need to be returned to the off state in order for the humi...

Page 49: ...057 Blower Status Switch Dirty Filter Switch FIGURE 64 8301 057 Air Differential Switch Terminals Terminals 1 Normally Closed 2 Normally Open 3 Common NOTE Contact position is in resting state P2 P1...

Page 50: ...3 64 228 3 69 231 3 74 234 3 79 237 3 83 240 3 88 243 3 93 246 3 98 249 4 03 252 4 08 255 4 13 258 4 17 261 4 22 264 4 27 267 4 32 270 4 37 273 4 42 276 4 47 279 4 51 282 4 56 285 4 61 288 4 66 291 4...

Page 51: ...of the connectors ii Scars in insulation exposing bare wire C If communication cable is damaged i Replace communication cable D If communication cable is not damaged i Carefully reconnect the dust sen...

Page 52: ...Manual 2100 695C Page 52 of 56 FIGURE 66 Dust Sensor Alarm Board Power Supply Check...

Page 53: ...13 474 103 39 4 5446 10 23 3 118 108 28 2 2 36 583 66 18 9 13 137 104 40 0 5326 9 22 8 114 272 29 1 7 35 548 67 19 4 12 810 105 40 6 5208 8 22 2 110 575 30 1 1 34 545 68 20 0 12 492 106 41 1 5094 7 21...

Page 54: ...8 113 45 4656 114 8 46 4490 116 6 47 4332 118 4 48 4180 120 2 49 4034 122 50 3893 123 8 51 3759 125 6 52 3629 127 4 53 3505 192 2 54 3386 131 55 3271 132 8 56 3160 134 6 57 3054 136 4 58 2952 138 2 59...

Page 55: ...285 295 20 1 2 315 300 20 4 2 346 305 20 8 2 377 310 21 1 2 408 315 21 4 2 439 320 21 8 2 469 325 22 1 2 500 Pressure Signal PSI Bar Vdc 330 22 5 2 531 335 22 8 2 562 340 23 1 2 592 345 23 5 2 623 35...

Page 56: ...2 324 116 7 9 2 356 118 8 0 2 388 120 8 2 2 420 122 8 3 2 452 124 8 4 2 484 126 8 6 2 516 Pressure Signal PSI Bar Vdc 128 8 7 2 548 130 8 8 2 580 132 9 0 2 612 134 9 1 2 644 136 9 3 2 676 138 9 4 2 7...

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