FAN Blade Setting Dimensions, Removal of FAN Shroud

TROUBLESHOOTING

FAN BLADE SETTING DIMENSIONS

Shown in Figure 9 is the correct fan blade setting for proper air delivery across the outdoor coil. Refer to Table 2 for unit specific dimension.

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 2		MIS-1724
TABLE 2
FAN BLADE DIMENSION

Model	Dimension
Model	A
	A

W18H1	1.00"
W24H1	1.00"
W24H1

W30H1	1.25"
W36H1	1.25"
W36H1

W42H1
W48H1	1.75"
W60H1

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-410A 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 3. If charge quantity is in doubt, reclaim unit and recharge to factory nameplate quantity.

TABLE 3

REFRIGERANTCHARGE

	Rated	95°F OD	82°F OD
Model	Airflow	Temperature	Temperature

W18H1	600	57 - 61	62 - 66

W24H1	800	58 - 62	58 - 63

W30H1	1000	58 - 62	62 - 66

W36H1	1100	58 - 62	57 - 61

W42H1	1400	61 - 65	65 - 69

W48H1	1550	60 - 64	63 - 67

W60H1	1650	60 - 64	65 - 69

The suction line temperatures in Table 3 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.

Manual	2100-511
Page	21 of 27

TROUBLESHOOTING