Bryant 580J*04--12 PURONR R410A REFRIGERANT, Refrigerant Charge, CoreMax Access Port Assembly

SEATCORE

(Part No. EC39EZ067)

1/2-20 UNF RH

0.596

30o

WASHER

O-RING

45o

DEPRESSOR PER ARI 720 +.01/-.035

5/8” HEX

.47

1/2" HEX

FROM FACE OF BODY

This surface provides a metal to metal seal when torqued into the seat. Appropriate handling is required to not scratch or dent the surface.

7/16-20 UNF RH

C08453

580J

Fig. 11 - CoreMax Access Port Assembly

PURONR (R410A) REFRIGERANT

This unit is designed for use with Puron (R410A) refrigerant. Do not use any other refrigerant in this system.

Puron (R410A) is provided in pink (rose) colored cylinders. These cylinders are available with and without dip tubes; cylinders with dip tubes will have a label indicating this feature. For a cylinder with a dip tube, place the cylinder in the upright position (access valve at the top) when removing liquid refrigerant for charging. For a cylinder without a dip tube, invert the cylinder (access valve on the bottom) when removing liquid refrigerant.

Because Puron (R410A) is a blend, it is strongly recommended that refrigerant always be removed from the cylinder as a liquid. Admit liquid refrigerant into the system in the discharge line. If adding refrigerant into the suction line, use a commercial metering/expansion device at the gauge manifold; remove liquid from the cylinder, pass it through the metering device at the gauge set and then pass it into the suction line as a vapor. Do not remove Puron (R410A) from the cylinder as a vapor.

Refrigerant Charge

Amount of refrigerant charge is listed on the unit’s nameplate. Refer to GTAC2-5 Charging, Recovery, Recycling and Reclamation training manual and the following procedures.

Unit panels must be in place when unit is operating during the charging procedure.

No Charge

Use standard evacuating techniques. After evacuating system, weigh in the specified amount of refrigerant.

Low-Charge Cooling

Using Cooling Charging Charts, Fig. 12, vary refrigerant until the conditions of the appropriate chart are met. Note the charging charts are different from type normally used. Charts are based on charging the units to the correct superheat for the various operating conditions. Accurate pressure gauge and temperature sensing device are

required. Connect the pressure gauge to the service port on the suction line. Mount the temperature sensing device on the suction line and insulate it so that outdoor ambient temperature does not affect the reading. Indoor-air cfm must be within the normal operating range of the unit.

To Use Cooling Charging Charts

Take the outdoor ambient temperature and read the suction pressure gauge. Refer to chart to determine what suction temperature should be. If suction temperature is high, add refrigerant. If suction temperature is low, carefully recover some of the charge. Recheck the suction pressure as charge is adjusted.

SIZE DESIGNATION	NOMINAL TONS
	REFERENCE
04A,B,C	3
05A,B,C	4
06A,B,C	5
07A,C	6
08A,C	7.5
09A,C	8.5
12A,C	10

EXAMPLE:

Model 580J*04A (3 ton)

Outdoor Temperature . . . . . . . . . . . . . . . . . . 85_F (29_C) Suction Pressure . . . . . . . . . . . . . . . . . 140 psig (965 kPa) Suction Temperature should be . . . . . . . . . . 60_F (16_C)

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