Bard WA381, WA602, WA491 Troubleshooting, FAN Blade Setting Dimensions, Removal of FAN Shroud

Page 18

TROUBLESHOOTING

FAN BLADE SETTING DIMENSIONS

Shown in Figure 10 is the correct fan blade setting dimension for proper air delivery across the outdoor coil.

Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions below be checked and blade adjusted in or out on the motor shaft accordingly.

FIGURE 9

FAN BLADE SETTING

TABLE 5

FAN BLADE DIMENSION

 

Dimension

Model

A

 

 

WA381

 

WA423

 

WA484

1.75

WA491

 

WA602

 

REMOVAL OF FAN SHROUD

1.Disconnect all power to the unit.

2.Remove the screws holding both grilles, one on each side of unit, and remove grilles.

3.Remove screws holding fan shroud to condenser and bottom. Nine (9) screws.

4.Unwire condenser fan motor.

5.Slide complete motor, fan blade, and shroud assembly out the left side of the unit.

6.Service motor/fan as needed.

7.Reverse steps to reinstall.

REFRIGERANT CHARGE

The correct system R-22 charge is shown on the unit rating plate. Optimum unit performance will occur with a refrigerant charge resulting in a suction line temperature (6” from compressor) as shown in Table 6.

TABLE 6

REFRIGERANT CHARGE

 

Rated

95 OD

82 OD

Model

Airflow

Temperature

Temperature

 

 

 

 

WA381

1100

50 - 48

48 - 46

 

 

 

 

WA423

1400

52 - 54

64 - 66

 

 

 

 

WA484

1550

54 - 56

65 - 67

 

 

 

 

WA491

1250

48 - 46

47 - 45

 

 

 

 

WA602

1700

53 - 55

60 - 62

 

 

 

 

The suction line temperatures in table above are based upon 80° F dry bulb / 67° F wet bulb (50% R.H.) temperature and rated airflow across the evaporator during cooling cycle.

TABLE 7

INDOOR BLOWER PERFORMANCE

CFM @ 230V

 

 

WA423, WA484

 

 

WA602

 

 

 

 

 

 

 

 

 

 

 

Low 230V

High 230V

Low 230V

High 230V

E.S.P.

 

 

 

 

 

 

 

 

Dry Coil

Wet

Dry Coil

Wet

Dry Coil

Wet

Dry Coil

Wet

In H20

Coil

Coil

Coil

Coil

 

 

 

 

.0

1650

1600

1885

1800

1600

1450

2200

2000

.1

1550

1500

1770

1665

1525

1375

2100

1900

.2

1450

1400

1635

1540

- - -

- - -

2000

1800

.3

1350

1300

1500

1400

- - -

- - -

1875

1700

.4

1300

1175

1370

1285

- - -

- - -

1775

1600

.5

- - -

- - -

1250

1150

- - -

- - -

1650

1475

Table 7A on Page 18 for models WA381 and WA491

Manual 2100-398 Page 16

Image 18
Contents WA381 WA423 WA484 WA491 WA602 Contents Getting Other Information and Publications For More INFORMATION, Contact These PublishersWall Mount General Information Heat Pump Wall Mount Model NomenclatureElectric Heat Table Unit Dimensions Electrical Specifications Single Circuit Dual CircuitShipping Damage GeneralFresh AIR Intake Duct WorkFilters Condensate DrainInstallation Instructions Wall Mounting InformationMounting the Unit Mounting Instructions Electric Heat Clearance Wall Mounting Instructions See Mounting InstructionsCommon Wall Mounting Installations TAP Range Wiring Main Power Wiring LOW Voltage WiringThermostat Wire Size Wall Thermostat and Subbase CombinationsUnit 24V Terminal Board Start UP Pressure Service Ports Sequence of OperationCompressor Control Module Removal of FAN Shroud TroubleshootingFAN Blade Setting Dimensions Refrigerant ChargeCFM @ 230V Recommended AirflowMaximum ESP of Operation Electric Heat only Pressure Table Cooling Pressure 100 105 110 115Optional Accessories
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WA423, WA381, WA484, WA491, WA602 specifications

Bard is a leading manufacturer in the field of air conditioning and heating solutions, known for its innovative products that cater to both residential and commercial needs. Among their notable models are the Bard WA381, WA602, WA484, WA491, and WA423, each designed with specific features and technologies that enhance efficiency, reliability, and user comfort.

The Bard WA381 is a compact unit that excels in energy efficiency and ease of installation. With a focus on high-performance cooling and heating capacities, this model is ideal for areas requiring reliable temperature control in limited spaces. Its advanced engineering ensures low noise operation, making it suitable for quiet environments, such as libraries and offices. The WA381's user-friendly controls and robust construction make it a favored choice among contractors and users alike.

The WA602 model stands out for its dual functionality, providing both cooling and heating. This unit incorporates state-of-the-art heat pump technology, allowing for year-round comfort. With a high Seasonal Energy Efficiency Ratio (SEER) rating, the WA602 combines cost-effective performance with eco-friendly operation. Its durable design and weather-resistant features ensure long-term reliability, even in harsh environments.

Bard's WA484 offers a seamless blend of performance and versatility. This model is equipped with advanced refrigeration technology, providing superior cooling efficiency. The WA484 is designed to accommodate varying load conditions, making it adaptable to numerous applications. Additionally, its intelligent control systems facilitate easy monitoring and adjustments, promoting optimal energy use and user convenience.

The WA491 is engineered with a focus on energy conservation and performance. With a high Energy Efficiency Ratio (EER), this unit minimizes operational costs while delivering exceptional climate control. The WA491's robust construction includes advanced insulation and weatherproofing, ensuring effective performance in diverse conditions. Furthermore, its features include remote monitoring capabilities, allowing users to manage their heating and cooling systems from anywhere.

Lastly, the WA423 is designed for maximum flexibility and efficiency. This model boasts a compact footprint, making it suitable for various installations. With an emphasis on quiet operation, the WA423 is perfect for settings where noise reduction is critical. It is equipped with modern control systems that optimize performance while reducing energy consumption, making it an eco-friendly choice for users.

Collectively, these Bard models reflect a commitment to quality, efficiency, and user satisfaction, setting the benchmark for heating and cooling solutions in the market.