Bryant R-22 Common Piston Sizes, LIQUID-LINE Solenoid KIT Part Numbers, Charging Information

TABLE 8—COMMON PISTON SIZES

CHECK-FLO-	CHATLEFF	CHECK-FLO-	CHATLEFF
RATER™		RATER™
—	32	65	65
—	33	67	67
35	35	—	68
—	36	70	70
—	37	—	71
38	38	73	73
—	39	—	74
40	40	76	76
—	41	78	78
42	42	80	80
—	43	—	81
—	45	82	82
46	—	84	84
—	47	86	86
49	49	88	88
51	51	—	89
52	52	90	90
—	53	—	92
55	55	93	93
57	57	96	96
59	59	98	98
61	61	101	101
—	62	104	104
63	63	109	—

NOTE: When installing a liquid-line solenoid, the system may require a minimum 60va low-voltage transformer.

Each type of solenoid has an indicator flow arrow stamped on the valve body. When solenoid is closed (not energized) and pressure is applied in direction of flow arrow, complete shutoff occurs. If pressure is applied against direction of flow arrow, leakage through valve occurs. When determining proper installation of valve within liquid line, 2 considerations must be made:

1.Direction of flow arrow

2.Where solenoid is installed in system.

TXVs can only be substituted for liquid-line solenoids in single- flow air conditioning systems. Bi-flow TXVs allow liquid migra- tion to coldest point during off cycles, which could allow liquid into compressor.

Fig. 4 through 7 detail proper installation of liquid-line solenoid and provide applications where TXVs may be substituted. Refer- ence all notes of the appropriate figures.

TABLE 9—LIQUID-LINE SOLENOID KIT PART NUMBERS

TYPE OF VALVE	PART NO.
Single Flow	KAALS0101LLS
Bi-Flow	KHALS0401LLS

V. CHARGING INFORMATION

Weigh in appropriate refrigerant charge, then use the standard practices of superheat-charging method for piston applications and subcooling-charging method for TXV applications to confirm correct charge. The standard charging methods can be found on outdoor unit-information plate, in unit Installation Instructions, or in the Service Manual. Since total system charge is increased for long-line applications, it may be necessary to calculate the additional refrigerant charge. Since long-line applications only involve 3/8-in. liquid lines, the additional refrigerant charge required is 0.6 oz of Refrigerant 22 (R-22) per ft of 3/8-in. liquid line over 15 ft.

—8—

EXAMPLE:

To calculate additional charge required for a 25–ft line set: 25 ft – 15 ft = 10 ft X 0.6 oz/ft = 6 oz of additional charge

The rating-plate charge of a given outdoor unit is for a standard application of 15 ft of interconnecting tubing. The rating-plate charge can be found on outdoor unit-rating plate or in outdoor unit-presale literature. Long-line applications do not require addi- tional oil charge.

VI. 2–SPEED APPLICATIONS

Outdoor units may be connected to indoor section using accessory tubing package or field-supplied refrigerant grade tubing of correct size and condition. In long–line applications, 2–speed units are handled basically the same way as the single-speed units. There are

2 major differences:

1.For tubing up to 100 ft:

Liquid tube diameters and refrigerant connection diameters for all sizes are 3/8 in.

Vapor tube diameter for the 036 and 048 is 7/8 in.; 060 is 1–1/8 in.

Vapor refrigerant connection diameter for all sizes is 7/8 in.

DO NOT INSTALL EQUIVALENT INTERCONNECT- ING TUBING LENGTHS GREATER THAN 100 FT.

2.Do not increase or decrease tubing sizes.

For other applications see the previous sections under Long-Line Guidelines.

UNIT IDENTIFICATION

I.PRODUCT NUMBER STAMPED ON UNIT-RATING PLATE

The unit product number has 16 positions containing groups of numbers and letters that indicate specific information about the unit. Listed below is the breakdown of the 16 positions.

Positions 1, 2, and 3—Product Series Example:

A 500–series number indicates a split-system condensing unit and a 600–series number indicates a split-system heat pump. Position 4—Model Letters

New models are introduced with the letter A, and subsequent model changes are identified by changing to the next letter, as B, then C, and so forth.

Position 5—Electrical Characteristics Example:

J—208–230, 1 Phase, 60 Hertz N—208/230, 208/240, 1 Phase, 60 Hertz P—208/230, 208/240, 3 Phase, 60 Hertz E—460, 3 Phase, 60 Hertz

Q—220, 3 Phase, 50 Hertz S—220/240, 1 Phase, 50 Hertz Z—380/415, 3 Phase, 50 Hertz Position 6—Fuel and Controls

Not applicable on condensing units or heat pumps, so the letter ’X’ is used to signify ’none.’

Positions 7, 8, and 9—Nominal Cooling Capacity (in thousands Btuh)

Example: 036 = 36,000 Btuh or 3–ton capacity.

Positions 10, 11, and 12—Not applicable on condensing units or heat pumps, so the number ’zero’ is used to signify ’none.’ Position 13—Brand Name

Example:

A—Common unit —U.S.A. Only Position 14—Unit Series

New units are introduced with the letter A, and subsequent major component variations, such as in compressor, fan motor, coil circuitor size, etc., are identified by changing to the next letter, as B, then C, and so forth.