Page 36
LGH/LCH036, 048, 060, 072
TABLE 20
LG/LC 048H NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
S 5
psig
65
5
F
256
122
75
5
F
299
132
85
5
F
342
139
95
5
F
388
145
105
5
F
437
150
115
5
F
493
153
TABLE 21
LG/LC 048H REHEAT NORMAL OPERATING
PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
S 5
psig
65
5
F
261
138
75
5
F
299
142
85
5
F
342
144
95
5
F
389
147
105
5
F
441
150
115
5
F
497
153
TABLE 22
LG/LC 060S NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
S 5
psig
65
5
F
264
136
75
5
F
303
138
85
5
F
346
140
95
5
F
395
142
105
5
F
445
145
115
5
F
500
148
TABLE 23
LG/LC 060S REHEAT NORMAL OPERATING
PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
S 5
psig
65
5
F
267
135
75
5
F
307
137
85
5
F
350
139
95
5
F
399
142
105
5
F
451
144
115
5
F
507
147
TABLE 24
LG/LC 060H NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
S 5
psig
65
5
F
253
136
75
5
F
291
137
85
5
F
334
139
95
5
F
380
142
105
5
F
427
145
115
5
F
479
148
TABLE 25
LG/LC 060H REHEAT NORMAL OPERATING
PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
S 5
psig
65
5
F
256
136
75
5
F
295
138
85
5
F
337
140
95
5
F
384
143
105
5
F
432
146
115
5
F
488
147
TABLE 26
LG/LC 072H NORMAL OPERATING PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
S 5
psig
65
5
F
271
136
75
5
F
312
139
85
5
F
357
141
95
5
F
405
144
105
5
F
458
147
115
5
F
515
151
TABLE 27
LG/LC 072H REHEAT NORMAL OPERATING
PRESSURES
Outdoor Coil
Entering Air Temp
Discharge
+10 psig
S 5
psig
65
5
F
272
137
75
5
F
312
139
85
5
F
356
140
95
5
F
403
142
105
5
F
453
145
115
5
F
507
148
D-Charge Verification - Approach Method - AHRI
TESTING (Fin/Tube Coil Continued)
1- Using the same thermometer, compare liquid
temperature to outdoor ambient temperature.
Approach Temperature = Liquid temperature (at
condenser outlet) minus ambient temperature.
2- Approach temperature should match values in table
28. An approach temperature greater than value
shown indicates an undercharge. An approach
temperature less than value shown indicates an
overcharge.
3- The approach method is not valid for grossly over or
undercharged systems. Use tables 14 through 27 as
a guide for typical operating pressures.
