Table; Table 8-5 Carrier Transport Air Conditioning System Performance Chart - Carrier Transport Air Conditioning Installation Procedures Manual

Table 8-5 CARRIER TRANSPORT AIR CONDITIONING SYSTEM PERFORMANCE CHART

Determine the approximate refrigerant charge using Table 8-1 or Table 8-2 .
Follow the procedures listed below to determine if the correct charge has been obtained.

Table

Pres- Refrigerant Temp.
sure
PSIG R-12 R134a
(A) (B)
95 87
100 90
105 93
110 96
115 99
120 102
125 104
130 107
135 109
140 112
145 114
150 117
155 119
160 121
165 123
170 126
175 128
180 130
185 132
190 134
195 136
200 138
205 140
210 142
215 143
220 145
225 147
235 150
245 154
255 157
265 160
275 163
If using the Micro-Channel type Condenser assembly, add 37 degrees in step 3 instead of 40 degrees.
This is due to the approximately 10 psi lower discharge pressure that will be experienced with this
type application.
T--311
Procedure
1. Connect Manifold Gauge Set To
Air Conditioning System
Certified Air Conditioning Mechanic
Only
(C)
85
88
2. Measure outside (ambient) air
temperature.
90
Enter here ------------ -->
93
96
98
100
3. Add 40 degrees F to the outside
103
(ambient) air temperature --->
105
(See Note below)
107
109
112
4. Find closest refrigerant
114
temperature in Table
116
(B or C) and enter here --- -->
118
120
122
5. Going across the Table, find the
123
corresponding pressure (A) -->
125
127
129
6. If the Discharge Pressure
131
(High Side) on gaugers
132
(With compressor engaged,
134
engine speed 1200 RPM, and
system operating) is :
136
137
Greater than (D) - Reduce refrigerant
139
by 4 ounce increments.
142
145
Less than (D) - Add refrigerant
148
151
Wait 10 minutes for system to
stabilize before taking new readings
153
Your Entry
______Degrees F
40 Degrees F
______Degrees F
______Degrees F
(D)=______ PSI
NOTE
8--4
Example
NONE NONE
100 Degrees F
40 Degrees F
140 Degrees F
139 Degrees F
225 PSI
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