FAN Blade Setting Dimensions, Removal of FAN Shroud

FAN BLADE SETTING DIMENSIONS

Shown in the drawing in Figure 11 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 11

FAN BLADE SETTING

TABLE 6

FAN BLADE DIMENSIONS

Model	Dimension A

WH421
WH483	1.75
WH602

MIS-1190

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 – (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 the Table 7.

TABLE 7

SUCTION LINE TEMPERATURES

	Rated	95°F O.D.	82°F O.D.
Model	Airflow	Temperature	Temperature
WH421	1400	52 -- 54	62 -- 64
WH483	1550	53 -- 55	62 -- 64
WH602	1700	52 -- 54	61 -- 63

The suction line temperatures in Table 7 are based upon 80ºF dry bulb/67 degrees F wet bulb (50 percent R.H.) temperature and rated airflow across the evaporator during cooling cycle.

TABLE 8

RECOMMENDED OPERATING RANGES

	Rated	Rated	Recommended
Model	CFM *	ESP *	Air Flow Range
WH421	1400	.30	1600 -- 1150

WH483	1550	.20	1750 -- 1285

WH602	1700	.30	1950 -- 1375

*Rated CFM and ESP on high speed tap.

TABLE 9

INDOOR BLOWER PERFORMANCE

CFM @ 230V

		WH421, WH483				WH602

E.S.P.	Low 230V		High 230V		Low 230V		High 230V
E.S.P.
In H2O	Dry Coil	Wet Coil	Dry Coil	Wet Coil	Dry Coil	Wet Coil	Dry Coil	Wet 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

Manual 2100-399 Page 19

WH421, WH483, WH602 specifications

Bard WH602, WH421, and WH482 are distinguished models in Bard's line of high-performance wall-mounted heaters. Each unit is designed to offer reliable heating solutions for various commercial and industrial applications. These models are renowned for their energy efficiency, robust construction, and ease of use, making them ideal for a variety of environments, including warehouses, manufacturing facilities, and other large spaces.

The WH602 model boasts impressive heating capabilities, featuring a powerful fan-forced heater equipped with a 60000 BTU rating. This allows it to effectively heat large areas quickly and efficiently. One of its main features is the high-efficiency, stainless steel heat exchanger that promotes better heat transfer, enhancing the overall performance and longevity of the heater. The WH602 is designed with energy-saving technology, allowing it to operate with minimal electricity consumption while maximizing output.

The WH421 model offers a more compact solution without sacrificing power. With a heating capacity of 42000 BTU, it is suitable for medium-sized spaces. Like the WH602, the WH421 utilizes a stainless steel heat exchanger, ensuring durability and efficient heating. This model is equipped with a quiet, high-performance fan that distributes heat uniformly throughout the space, maintaining comfortable conditions without the distraction of excessive noise. Its compact design also allows for easy installation in tighter spaces.

The WH482 is a versatile model that falls between the two in terms of performance and application. Rated at 48000 BTU, it combines the benefits of both the WH602 and WH421, making it suitable for various heating demands. The WH482 features advanced control options, allowing users to set specific heating schedules and temperatures for improved comfort and energy efficiency. Additionally, it has built-in safety features like over-temperature protection and a thermal cutoff switch, ensuring safe operation in commercial environments.

All three models share key characteristics, including a robust construction built to withstand harsh conditions, user-friendly controls, and compliance with industry safety standards. Their wall-mounted design saves valuable floor space while providing powerful heating performance. Overall, Bard WH602, WH421, and WH482 represent a commitment to quality, performance, and customer satisfaction, making them top choices for businesses seeking efficient heating solutions.