Bryant 664B Maintenance, Air Filter, Unit Top Removal, Cooling Charging Chart

Table 5 – Cooling Charging Chart

SUCTION LINE TEMPERATURE (°F)

Suction Line Pressure (PSIG)

OD Temp.	52	54	56	59	61	64	67	70	73	76	79	82	85	89	92
(°F)
45	51	55	60	64	69	—	—	—	—	—	—	—	—	—	—
55	—	—	53	57	62	66	70	—	—	—	—	—	—	—	—
65	—	—	—	—	53	57	62	66	71	75	—	—	—	—	—
75	—	—	—	—	—	—	—	56	61	66	71	76	—	—	—
85	—	—	—	—	—	—	—	—	53	58	63	67	72	—	—
95	—	—	—	—	—	—	—	—	—	50	54	58	62	66	—
105	—	—	—	—	—	—	—	—	—	—	50	53	57	60	64
115	—	—	—	—	—	—	—	—	—	—	49	52	55	58	61
125	—	—	—	—	—	—	—	—	—	—	—	50	53	56	59
					SUCTION LINE TEMPERATURE (°C)
					Suction Line Pressure (kPa)
OD Temp.	361	370	387	405	423	442	462	482	502	523	544	566	589	612	636
(°C)
7	11	13	15	18	21	—	—	—	—	—	—	—	—	—	—
13	—	—	12	14	16	19	21	—	—	—	—	—	—	—	—
18	—	—	—	—	12	14	17	19	21	24	—	—	—	—	—
24	—	—	—	—	—	—	—	13	16	19	22	24	—	—	—
29	—	—	—	—	—	—	—	—	12	14	17	20	22	—	—
35	—	—	—	—	—	—	—	—	—	10	12	14	17	19	—
41	—	—	—	—	—	—	—	—	—	—	10	12	14	16	18
46	—	—	—	—	—	—	—	—	—	—	9	11	13	14	16
52	—	—	—	—	—	—	—	—	—	—	—	10	11	13	15

664B

MAINTENANCE

To ensure continuing high performance, and to minimize the possibility of premature equipment failure, periodic maintenance must be performed on this equipment. This unit should be inspected at least once each year by a qualified service person. To troubleshoot unit, refer to Troubleshooting Chart in back of book.

NOTE TO EQUIPMENT OWNER: Consult your local dealer about the availability of a maintenance contract.

!WARNING

PERSONAL INJURY AND UNIT DAMAGE HAZARD

Failure to follow this warning could result in personal injury or death and possible unit component damage.

The ability to properly perform maintenance on this equipment requires certain expertise, mechanical skills, tools and equipment. If you do not possess these, do not attempt to perform any maintenance on this equipment, other than those procedures recommended in the Owner’s Manual.

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow these warnings could result in personal injury or death:

1.Turn off electrical power to the unit before performing any maintenance or service on this unit.

2.Use extreme caution when removing panels and parts.

3.Never place anything combustible either on or in contact with the unit.

Step 1 — Air Filter

IMPORTANT: Never operate the unit without a suitable air filter in the return-air duct system. Always replace the filter with the same dimensional size and type as originally installed. See Table 1 for recommended filter sizes.

Inspect air filter(s) at least once each month and replace (throwaway-type) or clean (cleanable-type) at least twice during each cooling season and twice during the heating season, or whenever the filter becomes clogged with dust and lint.

The minimum maintenance requirements for this equipment are as follows:

1.Inspect air filter(s) each month. Clean or replace when necessary.

2.Inspect indoor coil, drain pan, and condensate drain each cooling season for cleanliness. Clean when necessary.

3.Inspect blower motor and wheel for cleanliness each cooling season. Clean when necessary.

4.Check electrical connections for tightness and controls for proper operation each cooling season. Service when necessary.

5.Ensure electric wires are not in contact with refrigerant tubing or sharp metal edges.

Step 2 — Unit Top Removal

NOTE: When performing maintenance or service procedures that require removal of the unit top, be sure to perform all of the routine maintenance procedures that require top removal, including coil inspection and cleaning, and condensate drain pan inspection and cleaning.

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Disconnect and tag electrical power to the unit before removing top.

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