Bryant R-22 service manual Care and Maintenance, Reliant AIR Conditioners, Reliant Heat Pumps

TABLE 23—SUBCOOLING AT LIQUID-SERVICE VALVE FOR UNITS PRODUCED THROUGH DECEMBER, 1992

RELIANT AIR CONDITIONERS

Model		590A							591A/592A							593A/594A								593B		593C				594C				595A	596A		597A	597B		598A		598A
																																								High		Low
Series	A		B		C			A		B	C		D		A		B		C		D			A	B	A		B		A	B			A	A		A	A		A		A
014	14	14			—			14		14	14		—		6	6		—			—	— —			—	—		—	—		—			—	—	—	—		—
018	17	17			—			14		14	14		—		7	7		—			—	11			—	9		9		—	—			9	8		—	—		—	—
024	13	13			—			17		17	17		—		8	8		—			—	13			—	16		21		12	—			13	12		11	13		—		—
030	15	15			—			9		10	10		—		6	6		10			13	11			—	15		15		14	—			10	9		10	11		—		—
036	13	12			—			16		16	16		—		12	12		5			—	9			—	13		12		16	—			14	13		12	14		12	9
038	—	— — —						—		—	—	— —			—		—					16			—	— —		—		—		—		—	—		—	—		—
042	13	13			14			16		19	19		15		12	12		—			—	11			—	13		—		21	—			11	11		15	15		—		—
048	15	14			—			18		14	18		—		14	14		—			—	18			—	17		—		14	—			10	10		11	11		12	9
060	19	22			—			18		18	18		—		14	14		—			—	11			—	16		—		19	—			—	—		12	11		12	9
																				RELIANT HEAT PUMPS
																																						698A
Model
				690A							691A/692A						693A/694A							693B		693C				694C			697A		697B		Cooling			Heating
																																					High	Low		High		Low
Series	A		B					C		D	A				B		A				B				A	A				A				A	A		A	A		A		A
014	7		7				7			—	—			—			—		—				—		—		—			—				—			—	—		—		—
018	18		18				18			—	16			16			11				11				10	9				7			9		10		—	—		—		—
024	18		18				18			—	16			16			11				11				13	6				5			11		11		—	—		—		—
030	13		13				13			—	20			20			10				10				11	10				10			9		10		—	—		—		—
036	18		18				18			—	14			14			10				10				11	13				12			9		10		12	7		18		15
042	13		11				11			—	18			18			15				15				12	10				12			11		12		—	—		—		—
048	22		17				15		14		19			14			13				13				—	15				12			10		11		14	9		25		18
060	23		23				23			—	13			13			14				14				—	15				10			12		7		14	9		22		21
MODEL			CUBE UNIT—AIR CONDITIONERS																		CUBE UNIT—HEAT PUMPS													HORIZONTAL AIR CONDITIONERS
									561A/571A															661A/671A											566D					566E
Series						A									B								A					B						C			D			A
014						—								—							—						—						10				—			—
018					15									16								11						14					12				—			17
024					14									11								14						8						—			—			19
030					12									12								9						10						—			12			—
036					18									16								11						7						—			—			—
042					18									17								7						—						—			—			—
048						—								17								12						—						—			—			—
060						—								21								10						—						—			—

2.Measure liquid service-valve pressure by attaching an accurate gage to the service port.

3.Measure the liquid-line temperature by attaching an accu- rate thermistor-type or electronic thermometer to the liquid line near the outdoor coil.

4.Refer to unit-rating plate to find required subcooling temperature for units produced during or after January 1993. For units produced through December 1992, refer to Table 23. Find the point at which the required subcooling temperature intersects the measured liquid service-valve pressure on Table 24.

5.To obtain the required subcooling temperature at a specific liquid-line pressure, add refrigerant if liquid-line tempera- ture is higher than indicated or remove refrigerant if temperature is lower. Allow a tolerance of 3°F.

CARE AND MAINTENANCE

To assure high performance and minimize possible equipment malfunction, it is essential that maintenance be performed periodi-

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cally on this equipment. The frequency with which maintenance is performed is dependent on such factors as hours of operation, geographic location, and local environmental conditions.

WARNING: Disconnect all electrical power to unit before performing any maintenance or service on outdoor unit. Remember to disconnect power supply to air handler as this unit supplies low-voltage power to the outdoor unit. Electric shock can cause personal injury or death.

The minimum maintenance that should be performed on this equipment is as follows.

1.Check outdoor coil for cleanliness each month during the heating (heat pump only) or cooling season and clean as necessary, but clean at least once each heating (heat pump only) and cooling season.

2.Check fan motor and blade for cleanliness each heating and cooling season and clean as necessary.