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Bard FUSION-TEC HR58APB Service Instructions Manual

Wall-mount air conditioner part of the bard free cooling unit system
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SERVICE INSTRUCTIONS

AIR CONDITIONER

Part of the Bard Free Cooling Unit System
NOTE: LV1000 Controller is required for operation when
multiple HR58AP* units are used.
FUSION-TEC™
WALL-MOUNT
Models:
HR58APA
HR58APB
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Manual :
2100-670
Supersedes:
NEW
Date:
6-2-17
Page
1 of 32

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Summary of Contents for Bard FUSION-TEC HR58APB

  • Page 1: Air Conditioner

    SERVICE INSTRUCTIONS FUSION-TEC™ WALL-MOUNT AIR CONDITIONER Models: HR58APA HR58APB Part of the Bard Free Cooling Unit System NOTE: LV1000 Controller is required for operation when multiple HR58AP* units are used. Bard Manufacturing Company, Inc. Manual : 2100-670 Bryan, Ohio 43506 Supersedes: www.bardhvac.com...

  • Page 2: Table Of Contents

    Thermal Overload ....... 29 Indoor Airflow Operation ......18 Electric Heat Operation ......29 Blower Speed Control ......18 Bard Guard Anti-Theft System Option ....29 Additional Indoor Airflow Alarms ....18 Smoke Detector Option ........29 Supply Air Temperature Alarm ..... 18 Inverter Option ..........
  • Page 3 Cooling w/Economizer ......10 Standard Maintenance Procedures ....32 Figure 8 Viewing Unit Stages ......11 Figure 9 Cooling w/No Economizer ......11 Bard Guard Anti-Theft System Option ....32 Figure 10 Heating ..........11 Figure 11 Adjusting Low Pressure Sensor Values ..12 Figure 12 Adjusting Suction Temperature Sensor Values ..........13...

  • Page 4: General Information

    Free Cooling Unit System Conditioning and Ventilating Systems of Other Than Residence Type, NFPA No. 90A, and Residence Type This Bard Free Cooling Unit System is composed of Warm Air Heating and Air Conditioning Systems, NFPA FUSION-TEC wall-mounted air conditioners matched No.
  • Page 5 ANSI Z535.5 Definitions: WARNING DANGER: Indicate[s] a hazardous situation which, if not avoided, will result in death or serious injury. The signal word “DANGER” is to be limited to the most Electrical shock hazard. extreme situations. DANGER [signs] should not be used for property damage hazards unless personal injury risk Have a properly trained individual perform appropriate to these levels is also involved.

  • Page 6: Using The Tec-Eye Tm

    USING THE TEC-EYE FIGURE 1 TEC-EYE (Bard P/N 8301-059) Display and Interface (Status Screen Shown) UP KEY ALARM KEY MENU KEY ENTER KEY ESCAPE KEY DOWN KEY ALARM KEY UP KEY Allows viewing of active alarms Steps to next screen in the display menu...

  • Page 7: Tec-Eye Menu Structure

    TABLE 1 TEC-EYE Menu Structure Unit Status Messages Quick Menu Setpoints Information Message Description Alarm Log Main Menu Unit is on and in orphan mode with System Configuration Orphan Stby no calls for heating or cooling Advanced System Configuration I/O Configuration Unit is operating under power loss Power Loss On/Off...

  • Page 8: Information

    TABLE 2 To verify or change the wall-mount unit cooling and heating setpoints in stand alone mode: LV1000/TEC-EYE Passwords (Defaults) 1. Connect the TEC-EYE diagnostic tool to the control User 2000 board located in the unit. Technician 1313 2. From the Status screen, press UP or DOWN key Engineer 9254 until Quick Menu displays Setpoints icon.

  • Page 9: Operation

    Acknowledging/Clearing Alarms the installers comfortable while the remainder of the Alarm conditions activate a red LED indicator that older equipment is removed and the remaining Bard backlights the ALARM function key. As an option, an FUSION-TEC wall-mount units and LV1000 controller alarm condition may also be enunciated by an audible are installed.

  • Page 10: Return Air Temperature Alarm

    2. Press UP or DOWN keys and ENTER key to enter Return Air Temperature Alarm TECHNICIAN password 1313. When the return air temperature sensor value is out of 3. Press UP or DOWN keys to scroll to I/O Config; range (-41.0 to 303.0°F), the controller will generate press ENTER key.

  • Page 11: Heating

    The unit is equipped with 1 stage of freecooling and To view unit stages: 2 stages of mechanical cooling (compressor and 1. From the Status screen, press UP or DOWN key solenoid). However, the outdoor conditions are not until Quick Menu displays Unit Information icon favorable for economizer operation so there are a total ).

  • Page 12: Dehumidification

    Dehumidification FIGURE 11 Adjusting Low Pressure Sensor Values The unit uses a dehumidification sequence that does not require the electric heat to run at the same time as the compressor. Instead, the unit will turn on the compressor to cool down to the heating setpoint. Once the lower setpoint has been reached, the unit will heat the space back up to the upper setpoint.

  • Page 13: Eev Operation

    NOTE: The unit must be off to perform this override. The valve can also be opened or closed using the EEV service tool (Bard Part # 2151-021). This magnetic 1. Press MENU key to go to the Main Menu screen.

  • Page 14: System Pressures

    manually open the EEV. To do this, remove the EEV 4. Press UP or DOWN keys to scroll to Blower Fan stator coil (red color with retaining nut on top), slide (C13); press ENTER key. the magnetic tool over the shaft where the stator was 5.

  • Page 15: Blower Status Alarm

    TABLE 4 FIGURE 16 Adjusting Air Flow Alarm Delay Rated Airflow Nominal Rated CFM Nominal Rated ESP High 1800 1400 TABLE 5 Indoor Blower Performance Speed High Dry Coil Wet Coil Dry Coil Wet Coil (Inch H20) Differential Airflow Switch 1885 1800 1470...

  • Page 16: Filters

    FIGURE 18 Dirty Filter Switch Verifying Differential Airflow Status These units are equipped with a differential pressure switch to indicate when the filter(s) needs to be replaced (see Figure 17). The dirty filter switch measures the pressure difference across the filter through silicone tubing routed to the blower and vent areas of the unit.

  • Page 17: Dirty Filter Alarm

    All units tested equipped with MERV 8 filters. Appropriate supply (SG) and return (RG) grilles installed during testing. Pressure switch adjustment may be necessary due to variations in filter type, installation and room pressure. Bard recommends the filter switch be set at 50% filter blockage or less. Higher settings may significantly hinder unit performance.

  • Page 18: Indoor Airflow Operation

    4. Press UP or DOWN keys to scroll to Condenser Fan 6. Press UP or DOWN keys to change to the desired value. (C15); press ENTER key. 5. Reference Fan Speed parameter for the current 7. Press ENTER key to save the value. output to the condenser fan (see Figure 22).

  • Page 19: High Pressure Transducer

    High Pressure Transducer refrigerant leaving the condenser and entering the EEV. The temperature is measured with a 10k ohm NTC The unit has a high side pressure transducer installed thermistor. on the liquid line between the condenser and electronic expansion valve (EEV). The transducer is used for The discharge temperature sensor can be verified and system monitoring of high side system pressures.

  • Page 20: High Pressure Control

    TABLE 8 bring the pressure back up. The speed will continue to ramp down until the discharge pressure reaches Condenser Fan Speeds 340 PSI. At this point, the fan will be operating at minimum speed, moving as little air as possible. Controller Mode Speed %...

  • Page 21: Compressor

    5. Press ENTER key to scroll to Alarm Threshold (see NOTE: If compressor is allowed to run in reverse Figure 27). rotation for an extended period of time, the compressor’s internal protector will trip. 6. Press UP or DOWN keys to adjust the % restriction to desired level.

  • Page 22: Phase Monitor

    Upon receiving the alarm, the wall unit will remove 7. Press ENTER key to save value and move the the “Y” call from the CCM, resetting the status of the cursor to next parameter or top of screen. CCM. The alarm will stay present on the wall unit until 8.

  • Page 23: Economizer

    FIGURE 30 8. Press UP or DOWN keys to adjust the delay value. Damper Override 9. Press ENTER key to save. 10. Press the ESCAPE key several times to return to Main Menu screen. FIGURE 29 Adjusting Low Pressure Alarm Settings Dust Sensor The unit has a dust sensor installed near the outdoor air inlet.

  • Page 24: Dust Sensor Failure Alarm

    FIGURE 31 FIGURE 32 Dust Sensor Adjusting Dust Sensor Alarm Setpoint Dust Sensor Failure Alarm Damper Blade When the sensor reads a value that is outside of the The system utilizes three damper blades used to bring acceptable 0 to 100% RH range, an alarm will be in outdoor air and exhaust space air for economizer generated indicating the sensor has failed.

  • Page 25: Damper Failed To Open Alarm

    Damper Failed to Open Alarm 5. Press ENTER key to scroll to Close Delay (see Figure 34). When the controller commands the economizer damper actuator to a position other than 0% and the damper 6. Press UP or DOWN keys to change to the desired switch indicates the damper is not open, after a delay value.

  • Page 26: Outdoor Temperature Sensor Failure Alarm

    5. Reference the Value to see the input of the sensor 6. To apply an offset, press ENTER key to scroll to (see Figure 36). Offset. 6. To apply an offset, press ENTER key to scroll to 7. Press UP or DOWN keys to change to the desired Offset.

  • Page 27: Low Supply Air Temperature Alarm

    2. Press UP or DOWN keys and ENTER key to enter FIGURE 38 USER password 2000. Adjusting Supply Air Temperature Differential 3. Press UP or DOWN keys to scroll to System Config; press ENTER key. 4. Press UP or DOWN keys to scroll to Economizer Setup (A2);...

  • Page 28: Figure 40 Economizer Setup - Enthalpy Control

    (see Figure 41). The following menu shows FIGURE 40 the Enthalpy content which also contains Economizer Setup – Enthalpy Control parameters that would be shown on TempHum. 18. Press ENTER key to scroll to OA Humid Set (see Figure 40). 19.

  • Page 29: Emergency Ventilation Mode

    12 and in LV1000 speaker. These devices are used with the Bard Guard Service Instructions 2100-673. In addition to dehum BG1000 anti-theft controller to provide an anti-theft mode, the economizer may be disabled for 30 minutes measure.

  • Page 30: Refrigerant Information

    Topping Off System Charge R410-A Refrigerant Charge If a leak has occurred in the system, Bard This unit was charged at the factory with the quantity Manufacturing recommends reclaiming, evacuating of refrigerant listed on the serial plate. AHRI capacity...

  • Page 31: Pressure Service Ports

    TABLE 10 Cooling Pressures Full Load Cooling Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure 100 105 110 115 120 125 (DB/WB) Low Side 75/62 High Side Low Side HR58 80/67 High Side Low Side 85/72 High Side Part Load Cooling Air Temperature Entering Outdoor Coil °F Return Air Temp...

  • Page 32: Maintenance

    3. Check inlet sides of condenser and evaporator coils For situations that require an individual unit to be for obstructions/debris—clean if necessary using a disconnected from the Bard Guard security system for quality manufactured coil cleaning product specific an extended period of service time (longer than the for the evaporator or condenser coil.

This manual is also suitable for:

Fusion-tec hr58apa

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