Bard WH-301, WH361 FAN Blade Setting Dimensions, Removal of FAN Shroud, Refrigerant Charge

Page 24

FAN BLADE SETTING DIMENSIONS

Shown in Figure 17 are the correct fan blade setting dimensions 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 17

FAN BLADE SETTING

TABLE 8

FAN BLADE DIMENSION

Model

Dimension A

 

 

WH301

1.25"

WH361

 

 

 

The suction line temperatures in Table 9 are based upon 80ºF dry bulb/67ºF wet bulb (50 percent R.H.) temperature and rated airflow across the evaporator during cooling cycle.

TABLE 10

INDOOR BLOWER PERFORMANCE

CFM AT 230 VOLTS

 

 

WH301, WH361

 

 

 

E.S.P.

Low Speed

High Speed

 

 

 

 

 

 

In H2O

Dry Coil /

Wet Coil

Dry Coil / Wet Coil

.0

950 /

935

1,395 / 1,315

 

 

 

 

.1

930 /

915

1,340 / 1,270

 

 

 

 

.2

910 /

885

1,285 / 1,190

 

 

 

 

.3

855 /

830

1,205 / 1,100

 

 

 

 

.4

800 /

755

1,110 / 1,000

 

 

 

.5

--- / ---

1,005 / 870

 

 

 

.6

--- / ---

--- / ---

 

 

 

 

REMOVAL OF FAN SHROUD

1.Disconnect all power to 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 inches from compressor) as shown in Table 9.

TABLE 9

SUCTION LINE TEMPERATURES

 

Rated

95￿ F OD

82￿ F OD

Model

Airflow

Temperature

Temperature

 

 

 

 

WH301

1,100

56 - 58

63 - 65

 

 

 

 

WH361

1,100

49 - 51

66 - 68

 

 

 

 

TABLE 11

CFM AND ESP

 

j

j

 

 

Rated

Rated

Recommended

Model

CFM

ESP

Airflow Range

 

 

 

 

WH301

1,000

.30

930 - 1,300

WH361

1,100

.30

930 - 1,350

 

 

 

 

Rated CFM and ESP on high speed tap

TABLE 12

MAXIMUM ESP OF OPERATION

ELECTRIC HEAT ONLY

 

 

Front Outlet

Top Outlet

 

 

 

 

 

 

 

 

Low

High

Low

High

Model

Speed

Speed

Speed

Speed

 

 

 

 

 

 

 

A00

.50

.50

.50

.50

WH301

A05

.40

.50

.40

.50

WH361

A10

.35

.40

.25

.40

 

A15

.35

.40

NA

NA

 

 

 

 

 

 

 

B00

.50

.50

.50

.50

WH301

B06

.40

.50

NA

NA

WH361

B09

.35

.45

.30

.40

 

B15

.35

.45

NA

NA

 

 

 

 

 

 

 

C00

.50

.50

.50

.50

WH301

C06

.50

.50

NA

NA

WH361

C09

.30

.40

.35

.45

 

C15

.30

.40

NA

NA

 

 

 

 

 

 

Values shown are for units equipped with standard 1" throwaway filter or 1" washable filter. Derate ESP by

.15 for 2" pleated filter.

Manual

2100-193O

Page

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Contents Wall Mounted Installation Packaged Heat Pump Instructions Models WH301, WH361Contents Getting Other Information and Publications For More INFORMATION, Contact These PublishersWall Mount General Information Heat Pump Wall Mount Model NomenclatureShipping Damage GeneralElectric Heat Table BTUFront View Side View Back View Electrical Specifications CKT a CKT BFresh AIR Damper Assembly FiltersFresh AIR Intake Condensate DrainInstallation Instructions Wall Mounting InformationMounting the Unit TOP Outlet onlyMounting Instructions Electric Heat Clearance Manual WALL-MOUNTING Instructions Common WALL-MOUNTING Installations Wiring Main Power Wiring LOW Voltage WiringLOW Voltage Connections Operating Voltage RangeLOW Voltage Wiring Thermostat Wire Size Compressor Cutoff Thermostat Wiring Optional Outdoor Thermostat ApplicationsElectric Heat HOLD-OFF Wiring 4 & 10KW 1 PH 6 & 9KW 3 PH Electric Heat HOLD-OFF See Figures 13Thermostat Predominate Features Wall ThermostatImportant Installer Note Service HintsStart UP Crankcase HeatersPressure Service Ports Defrost CycleDefrost Control Board Troubleshooting Solid State Heat Pump Control Troubleshooting ProcedureTroubleshooting Checking Temperature Sensor Outside Unit Circuit Temperature F VS. Resistance R of Temperature SensorFAN Blade Setting Dimensions Removal of FAN ShroudRefrigerant Charge Cooling Pressure PSI Outdoor Temperature F Heating Pressure PSI Outdoor Temperature FOptional Accessories WH301-A WH301-B WH301-C WH361-A WH361-B WH361-C