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Bard Manufacturing Company, Inc.

Bryan, Ohio 43506

www.bardhvac.com

Manual :

2100-670

Supersedes:

NEW

Date: 6-2-17

NOTE: LV1000 Controller is required for operation when

multiple HR58AP* units are used.

SERVICE INSTRUCTIONS

FUSION-TEC™

WALL-MOUNT

AIR CONDITIONER

Models:

Part of the Bard Free Cooling Unit System

HR58APA

HR58APB

Содержание FUSION-TEC HR58APB

Страница 1: ...bardhvac com Manual 2100 670 Supersedes NEW Date 6 2 17 NOTE LV1000 Controller is required for operation when multiple HR58AP units are used SERVICE INSTRUCTIONS FUSION TEC WALL MOUNT AIR CONDITIONER...

Страница 2: ...flow Alarms 18 Supply Air Temperature Alarm 18 Condenser Fan 18 Condenser Fan Components 18 Condenser Fan 18 High Pressure Transducer 19 High Pressure Transducer Alarm 19 Discharge Temperature Sensor...

Страница 3: ...itch Filter Indicator Light 16 Figure 20 Verifying Freeze Switch Status 17 Figure 21 Adjusting Freezestat Alarm Delay 18 Figure 22 Verifying Condenser Fan Output 18 Figure 23 Fan Blade Setting 18 Figu...

Страница 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...

Страница 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...

Страница 6: ...n case of power failure The controller is designed to manage temperature levels to a user defined setpoint via control output signals to the wall mount air conditioning system The TEC EYE connects to...

Страница 7: ...u is accessible from the Status screen Setpoints Information and Data Alarm Log are available through the Quick Menu Pressing the UP or DOWN keys while on the Status screen will change the Quick Menu...

Страница 8: ...and program version information Data Alarm Log The alarm log screens show a log of each alarm There will be a log for when alarm occurred and if the alarm auto clears it will show when the alarm clea...

Страница 9: ...n each wall mount unit In stand alone mode the wall unit uses a continuous blower setting to circulate room air into the return air inlet and uses the return air temperature sensor to control room tem...

Страница 10: ...trol will compare the space temperature to the space setpoint Based on how far away from the setpoint the temperature is the loop will output a cooling or heating capacity number between 0 and 100 The...

Страница 11: ...zer operation so there are a total of 2 cooling stages see Figure 9 Heating The unit is equipped with 1 stage of electric heat see Figure 10 Staging The unit will stage the cooling components based on...

Страница 12: ...l to I O Config press ENTER key 4 Press UP or DOWN keys to scroll to Suction Pr Sensor C11 press ENTER key 5 Verify the measurement displayed on screen is accurate see Figure 11 6 If the measurement n...

Страница 13: ...the valve NOTE The unit must be off to perform this override 1 Press MENU key to go to the Main Menu screen 2 Press UP or DOWN keys and ENTER key to enter TECHNICIAN password 1313 3 Press UP or DOWN...

Страница 14: ...the condition is no longer present This alarm cannot be adjusted Indoor Airflow Indoor Airflow Components Blower The unit is equipped with a blower that is driven by an electronically commutated moto...

Страница 15: ...or DOWN keys to change to the desired value 7 Press ENTER key to save the value FIGURE 17 Dirty Filter Switch and Blower Status Switch FIGURE 16 Adjusting Air Flow Alarm Delay Differential Airflow Sw...

Страница 16: ...tubing routed to the blower and vent areas of the unit The switch circuit consists of a normally open filter pressure switch The switch will open when the pressure differential goes above the setting...

Страница 17: ...he evaporator coil To prevent the coil from freezing and potentially allowing liquid refrigerant from the evaporator to enter the compressor the switch will open when the temperature at this sensor is...

Страница 18: ...ween 100 1200 rpm To view the output of the condenser fan 1 Press MENU key to go to the Main Menu screen 2 Press UP or DOWN keys and ENTER key to enter TECHNICIAN password 1313 3 Press UP or DOWN keys...

Страница 19: ...arm When the high pressure transducer sensor value is out of range 0 650 PSIG the controller will generate a sensor failure alarm to indicate the sensor is not working properly This alarm is fixed and...

Страница 20: ...ed moving as little air as possible If the discharge pressure continues to go down to 250 PSI the condenser fan will turn off The fan will remain off with the compressor running until the pressure rea...

Страница 21: ...operation The monitoring device protects the unit against compressor contactor chatter and reverse compressor rotation during these situations Compressor protection device has an adjustable 30 second...

Страница 22: ...can be changed by 1 Press MENU key to go to the Main Menu screen 2 Press UP or DOWN keys and ENTER key to enter TECHNICIAN password 1313 3 Press UP or DOWN keys to scroll to Adv System Config press EN...

Страница 23: ...new override value and the damper will travel to that position NOTE This override will last for 5 minutes or until the Override is changed back to Disabled Dust Sensor The unit has a dust sensor insta...

Страница 24: ...e value NOTE When the temperature outside is measured at or below 0 F the dust sensor alarm will be disabled to allow economizer operation This is done because the compressor is disabled below 0 F and...

Страница 25: ...NTER 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 A4 press ENTER key 5 Press ENTER key to scroll...

Страница 26: ...s UP or DOWN keys to scroll to I O Config press ENTER key 4 Press UP or DOWN keys to scroll to Supply Air Sensor C6 press ENTER key 5 Reference the Value to see the input of the sensor see Figure 37 6...

Страница 27: ...Enthalpy where the outdoor temperature humidity and calculated dew point are considered for economizer operation on a cooling call To change the economizer type 1 Press MENU key to go to the Main Men...

Страница 28: ...times to return to Main Menu screen See Table 9 for default settings for economizer operation FIGURE 40 Economizer Setup Enthalpy Control FIGURE 41 Economizer Setup TempHum Control TABLE 9 Economizer...

Страница 29: ...economizer may be disabled by the LV if the system determines it needs to enter dehumidification mode More information about the dehumidification sequence can be found on page 12 and in LV1000 Service...

Страница 30: ...refrigerant it must come out of the charging cylinder tank as a liquid to avoid any fractionation and to insure optimal system performance Refer to instructions for the cylinder that is being utilize...

Страница 31: ...plate charge weight NOTE Pressure table based on high speed condenser fan operation If condensing pressures appear elevated check condenser fan wiring See Condenser Fan Operation Full Load Cooling Ai...

Страница 32: ...oss the appropriate terminals on the BG1000 terminal block to temporarily remove the unit from the security system Be sure to remove the jumper from the terminals after service has been completed See...

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