Carrier 50HJ015 - Manual (Page 15)

i
TEST PROCEDURE RESULTS
A Disconnect
factory-installed
resistor from
terminals S r and +
1 LED (light-emitting diode)
should be on
2. Motor drives toward open
Table 10 — High and Low Outdoor-Air
Temperature Simulation
TEST PROCEDURE RESULTS
A Reconnect factory-
installed 800 ohm resistor
between terminals
S
r and +
B. Connect 1200 ohm
checkout resistor
between terminals
So and
+.
C. Turn set point potentiom­
eter to position A
Low outdoor-air temperature
test results:
1 LED (light-emitting diode)
should be on
2 Motor drives toward open
D. Turn set point potentiom­
eter to position D
E Disconnect 1200 ohm
checkout resistor
High outdoor-air temperature
test results
1 LED should be off
2 Motor drives toward closed.
OUTDOOR
TEMP (F)
40 50 60
SUCTION LINE TEMP (FÌ
Fig. 23 — Cooling Charging Chart — 50HJ015
90-
Î50-
TO USE COOLING CHARGING CHART - Take out­
door ambient temperature and read the suction pressure gage.
Refer to appropriate chart to determine correct suction tem­
perature. If suction temperature is high, add refrigerant. If
suction temperature is low, carefully reclaim some of the
charge. Recheck suction pressure as charge is adjusted
Filter Drier — Replace whenever refrigerant system is
exposed to atmosphere.
30-
OUTDOOR TEMP
-
F
15
05
95
55
85
75
45
35
65
BOTH CONDENSER FANS RUNNING
LU Li_LLLL 1TJ__
- ONE CONDENSER FAN RUNNING
20 30 40 SO 60
SUCTION LINE TEMPERATURE CF)
Fig. 24 — Cooling Charging Chart — 50HJ024
15