Instruction manual

ManualsBrandsBryant ManualsHeat Pump602B

3. Restart unit in Heating mode, allowing frost to accumulate

on outdoor coil.

4. After a few minutes in Heating mode, liquid line tempera-

ture should drop below closing point of defrost thermostat

(approximately 30°F).

NOTE: Unit will remain in defrost until defrost thermostat

reopens at approximately 80°F coil temperature at liquid line or

remainder of defrost cycle time.

5. Turn off power to outdoor and reconnect fan motor lead to

OF2 on control board after above forced defrost cycle.

MAINTENANCE

To ensure continuing high performance, and to minimize the

possibility of premature equipment failure, periodic maintenance

must be performed on this equipment. This heat pump unit should

be inspected at least once each year by a qualified service person.

To troubleshoot unit, refer to Table 7.

NOTE TO EQUIPMENT OWNER: Consult your local dealer

about the availability of a maintenance contract.

WARNING: The ability to properly perform mainte-

nance on this equipment requires certain expertise, me-

chanical 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 User’s Manual. FAILURE TO HEED THIS WARN-

ING COULD RESULT IN SERIOUS INJURY OR

DEATH AND POSSIBLE DAMAGE TO THIS EQUIP-

MENT.

WARNING: Failure to follow these warnings could

result in serious 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.

As with any mechanical equipment, personal injury

can result from sharp edges.

3. Never place anything combustible either on, or in

contact with, the unit.

CAUTION: Errors made when reconnecting wires may

cause improper and dangerous operation. Label all wires

prior to disconnecting when servicing.

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 neces-

sary.

I. 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.

(048) 60Hz COOLING CHARGING CHART

For use with units using R410a Refrigerant

100

110

120

130

140

150

160

170

180

30 40 50 60 70 80

SUCTION LINE TEMPERATURE (DEG. F)

SUCTION LINE PRESSURE (PSIG)

552

621

690

759

828

897

966

1035

1104

1173

-7 -1 4 10 15 21 26

SUCTION LINE TEMPERATURE (DEG. C)

SUCTION LINE PRESSURE (KILOPASCALS )

OUTDOOR

TEMP

F C

125 52

115 46

105 41

95 35

85 29

75 24

65 18

55 13

45 7

50JZ500070

C00086

Fig. 29—Cooling Charging Chart, 602B 048 Units

(060) 60 Hz COOLING CHARGING CHART

For use with units using R410a Refrigerant

100

110

120

130

140

150

160

170

180

20 30 40 50 60 70 80