Manual
2100-451E
Page
19 of 24
TROUBLESHOOTING CONT’D.
R-410A
REFRIGERANT CHARGE
The correct system R-410A charge is shown on the unit
rating plate. Optimum unit performance will occur with
a refrigerant charge resulting in a liquid line temperature
(the cooling expansion device) as shown in Table 8 or
by pressures as shown in Table 9 (Page 22).
The liquid line temperatures in Table 8 are based upon
80ºF dry bulb / 67ºF wet bulb (50 percent R.H.)
temperature and rated airflow across the evaporator
during cooling cycle running in Stage 2 cooling.
TABLE 8
LIQUID LINE TEMPERATURE
s
l
e
d
o
M
d
e
t
a
R
w
o
l
f
r
i
A
F
°
5
9
.
p
m
e
T
D
O
F
°
2
8
.
p
m
e
T
D
O
1
S
3
A
W
0
0
1
,
1
7
9
-
5
9
5
8
-
3
8
1
S
4
A
W
0
0
5
,
1
7
9
-
5
9
4
8
-
2
8
1
S
5
A
W
0
0
7
,
1
9
9
-
7
9
7
8
-
5
8
