Bard WA4822 Troubleshooting, Fan Blade Setting Dimensions, Refrigerant Charge, Figure Table

TROUBLESHOOTING

FAN BLADE SETTING DIMENSIONS REFRIGERANT CHARGE

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 10

TABLE 5

	Dimension
Model	A
WA602N	1.75

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.

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 7.

TABLE 7

REFRIGERANT CHARGE

	Rated	95 OD	82 OD
Model	Airflow	Temperature	Temperature
WA602	1700	53 - 55	60 - 62
WA482	1550	54 - 56	65 - 67

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 8

RATED CFM AND ESP

	Rated		Recommended
Model	CFM	ESP	Airflow Range
WA602N	1425	0.20	1775 - 1425	j
WA6023	1425	0.20	1775 - 1425	j
WA6022	1525	0.20	1850 - 1525	k
WA4823	1350	0.20	1600 - 1350	j
WA4822	1400	0.20	1700 - 1400	k

jRated CFM & ESP on High Speed tap with 14 x 28 return air filter grille

kRated CFM & ESP on High Speed tap with 20 x 30 filter

TABLE 6

INDOOR BLOWER PERFORMANCE

CFM @ 230V

	WA602N
	WA6023		WA6022		WA4823		WA4822
	High Speed		High Speed		High Speed		High Speed
E.S.P.
	Dry	Wet	Dry	Wet	Dry	Wet	Dry	Wet
In H2O	Coil	Coil	Coil	Coil	Coil	Coil	Coil	Coil
.0	1775	1600	1850	1675	1600	1525	1700	1625
.1	1675	1525	1755	1600-	1525	1425	1600	1525
.2	1575	1425	1700	1525	1425	1350	1475	1400

Manual 2100-348 Page 17