Maintenance - Carrier 50JS Installation, Start-Up And Service Instructions Manual

(042) 60HZ CHARGING CHART
689
100
620
90
551
80
483 70
414 60
345
50
276
40
207
30
20.0 30.0 40.0
SUCTION LINE TEMPERATURE ( F)
-7 -1 4
SUCTION LINE TEMPERATURE ( C)
Fig. 27—Cooling Charging Chart, 50JS 042 Units
(060) 60HZ CHARGING CHART
689
100
620
90
551
80
483
70
414
60
345
50
276
40
207 30
20.0 30.0 40.0
SUCTION LINE TEMPERATURE ( F)
-7 -1 4
SUCTION LINE TEMPERATURE ( C)
Fig. 29—Cooling Charging Chart, 50JS 060 Units
To change the speed of the blower motor (BM), remove the fan
motor speed leg lead from the blower relay (BR). This wire is
attached to IGC terminal BM for single-phase and 3-phase units.
To change the speed, remove and replace with lead for desired
blower motor speed. Insulate the removed lead to avoid contact
with chassis parts.
For 460-v GE Motors—The motor leads are color coded as
follows:
3-SPEED
Black = high
Violet = jumper
Orange = medium
Red = low
OUTDOOR TEMP
F
125
115
105
95
85
75
65
55
45
50.0 60.0 70.0 80.0
10 16 21 27
50JS500091
C00030
OUTDOOR TEMP
F
125
115
105
95
85
75
65
55
45
50.0 60.0 70.0 80.0
10 16 21 27
50JS500093
C00032
C
689
100
52
46
41
620
90
35
29
551
80
24
18
13
483
70
7
414
60
345
50
276
40
207 30
20.0 30.0
SUCTION LINE TEMPERATURE ( F)
-7 -1
SUCTION LINE TEMPERATURE ( C)
Fig. 28—Cooling Charging Chart, 50JS 048 Units
To change the speed of the blower motor (BM), remove fan motor
C
speed lead from the blower relay (BR) and replace with the lead
for the desired blower motor speed. The motor speed lead is
attached to terminal BM. For low and medium speeds black must
52
be connected to the jumper wire. Insulate removed lead end to
46
avoid contact with chassis parts. To select high speed on 460-v GE
41
35
motors, separate the black female quick connect (QC) from the
29
jumper lead male quick connect (QC) and connect the black lead
24
to the BR. Insulate the jumper to avoid contact with any chassis
18
parts.
13
7
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 5.
NOTE TO EQUIPMENT OWNER: Consult your local dealer
about the availability of a maintenance contract.
The ability to properly perform maintenance on this equip-
ment 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 User's Manual. FAILURE
TO HEED THIS WARNING COULD RESULT IN SERI-
OUS INJURY OR DEATH AND POSSIBLE DAMAGE TO
THIS EQUIPMENT.
20
(048) 60HZ CHARGING CHART
40.0 50.0 60.0 70.0
4 10 16 21

MAINTENANCE

OUTDOOR TEMP
F C
125 52
115 46
105 41
95 35
85 29
75 24
65 18
55 13
45 7
80.0
27
50JS500092
C00031