Lennox LCA060 User Manual

Page 34
TABLE 15
LGA/LCA048S
Outdoor Coil
Entering
Air Temp
DIscharge
+10psig
Suction +5
psig
65_F 161 73
75_F 191 74
85_F 221 76
95_F 251 78
105_F 281 80
115_F 311 82
TABLE 16
LGA/LCA060H
Outdoor Coil
Entering
Air Temp
DIscharge
+10psig
Suction +5
psig
65_F 165 75
75_F 192 76
85_F 221 78
95_F 253 80
105_F 287 82
115_F 323 83
TABLE 17
LGA/LCA060S
Outdoor Coil
Entering
Air Temp
DIscharge
+10psig
Suction +5
psig
65_F 175 69
75_F 206 71
85_F 237 73
95_F 267 75
105_F 298 76
115_F 328 78
TABLE 18
LGA/LCA072H
Outdoor Coil
Entering
Air Temp
DIscharge
+10psig
Suction +5
psig
65_F 185 76
75_F 210 77
85_F 238 78
95_F 269 80
105_F 304 81
115_F 338 83
TABLE 19
LGA/LCA072S
Outdoor Coil
Entering
Air Temp
DIscharge
+10psig
Suction +5
psig
65_F 191 71
75_F 224 72
85_F 258 74
95_F 292 75
105_F 326 77
115_F 360 78
Charge Verification - Sub-Cooling Method
If ambient temperature is above 60_F (15_C), read liquid line
temperature. Read liquid line pressure from gauge and con-
vert to condensing temperature using standard R-22 temper-
ature/pressure conversion chart (or conversion scale on
gauge). The difference between the condensing temperature
and the liquid line temperature is subcooling (subcooling =
condensing temperature minus liquid line temperature). The
subcooling should approximate the value given in table 20.
Add refrigerant to increase subcooling and remove refriger-
ant to reduce subcooling.
NOTE - Outdoor air dampers should be closed when
charging.
TABLE 20
SUBCOOLING
Unit Circuit 2
L
G
A
/
L
C
A
0
3
6
S
,
0
3
6
H
,
0
4
2
H
,
1
0
_
F
+
1
(
5
.
6
_
C
+
1
)
L
G
A
/
L
C
A
0
3
6
S
,
0
3
6
H
,
0
4
2
H
,
0
4
8
S
,
0
4
8
H
,
0
7
2
H
1
0
_
F
+
1
(
5
.
6
_
C
+
1
)
0
4
8
S
,
0
4
8
H
,
0
7
2
H
L
G
A
/
L
C
A
0
4
2
S
,
0
6
0
H
1
1
_
F
+
1
(
6
.
1
_
C
+
1
)
L
G
A
/
L
C
A
0
4
2
S
,
0
6
0
H
1
1
_
F
+
1
(
6
.
1
_
C
+
1
)
LGA/LCA060S 16_F + 1(9_C + 1)
LGA/LCA072S 19_F + 1(11_C + 1)

Lennox LCA060 Specifications

General

Brand	Lennox
Model	LCA060
Category	Heat Pump
Language	English