Trane A5PA3024A1000A - Pressure Curves

28
88-A5PA3001-1A-EN
Pressure Curves
Figure 9. Pressure Curves for A5PA3024
Cooling
8
0
0 CFM
OUTDOOR TEMPERATURE (Degree F)
COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F.
TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB
TEMPERATURE, OUTDOOR TEMPERATURE, DISCHARGE AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1);
LOCATE INDOOR WET BULB (2); FIND INTERSECTION OF OD TEMP. & ID W.B. (3); READ DISCHARGE OR SUCTION PRESSURE IN LEFT
COLUMN (4).
EXAMPLE: (1) OUTDOOR TEMP. 82 F.
(2) INDOOR WET BULB 67 F.
(3) AT INTERSECTION
(4) DISCHARGE PRESSURE @ 800 CFM CFM IS 321 PSIG.
(5) SUCTION PRESSURE @ 800 CFM CFM IS 139 PSIG.
ACTUAL:
DISCHARGE PRESSURE SHOULD BE +/- 10 PSI OF CHART
SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART
DWG.NO. A5PA3024
200
250
300
350
400
450
500
550
40 60 80 100 120
(1)
(3)(4)
(2)
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM
71, 67, 63 AND 59 DEG F.
OUTDOOR TEMPERATURE (Degree F)
LIQUID PRESSURE (PSIG)
110
115
120
125
130
135
140
145
150
155
160
165
170
40 60 80 100 120
SUCTION PRESSURE (PSIG)
INDOOR ENTERING
WET BULB CURVES
TOP T
O BOTTOM
71, 67, 63 AND 59 DEG F.
(1)
(3)
(5)
(2)