Carrier 50JS Installation, Start-Up And Service Instructions Manual page 19

(018) 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. 23—Cooling Charging Chart, 50JS 018 Units
(030) 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. 25—Cooling Charging Chart, 50JS030 Units
INDOOR AIRFLOW AND AIRFLOW ADJUSTMENTS
For heating and cooling operation, the recommended airflow
is 350 to 450 cfm for each 12,000 Btuh of rated cooling
capacity. for units with optional electric heat, the airflow must
not be reduced below the levels stated in Tables 2A and 2B.
Tables 4A and 4B shows both heating and cooling airflows at
various external static pressures. Refer to these tables to determine
the airflow for the system being installed.
NOTE: Be sure that all supply-and return-air grilles are open, free
from obstructions, and adjusted properly.
OUTDOOR TEMP
F
125
115
105
95
85
75
65
55
45
50.0 60.0 70.0 80.0
10 16 21 27
50JS500087
C00026
OUTDOOR TEMP
F
125
115
105
95
85
75
65
55
45
50.0 60.0 70.0 80.0
10 16 21 27
50JS500089
C00028
C
52
758
110
46
41
689
100
35
29
620
90
24
18
551 80
13
483
70
7
414
60
345
50
276 40
20.0 30.0
SUCTION LINE TEMPERATURE ( F)
-7 -1
SUCTION LINE TEMPERATURE ( C)
Fig. 24—Cooling Charging Chart, 50JS 024 Units
C
52
689 100
46
41
620
90
35
29
24 551
80
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. 26—Cooling Charging Chart, 50JS 036 Units
Airflow can be changed by changing the lead connection of the
blower motor.
Unit 50JS and JX three-speed motors (except sizes JS 018 and JX
030) are factory wired for low speed operation. Unit 50JX 030 is
factory wired for medium speed. Unit 50JS 018 has a two-speed
motor wired for low speed.
For 208/230-v Motors:—The motor leads are color-coded as
follows:
3-SPEED
Black = high speed
Blue = medium speed
Red = low speed
19
(024) 60HZ CHARGING CHART
40.0 50.0 60.0 70.0
4 10 16 21
(036) 60HZ CHARGING CHART
40.0 50.0 60.0 70.0
4 10 16 21
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
50JS500088
C00027
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
50JS500090
C00029