Trane A5HP5 - Section 19. Pressure Curves

88-A5HP5001-1B-EN 27
Section 19. Pressure Curves
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
6
7
F
.
(3)
AT
INTERSECTION ACTUAL
:
(4) DISCHARGE PRESSURE @ 740 CFM IS 291 PSIG.DISCHARGE PRESSURE SHOULD BE +/- 10 PSIG OF CHART
(5) SUCTION PRESSURE @ 740 CFM IS 154 PSIG.SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART
LIQUID PRESSURE (PSIG)
OUTDOOR TEMPERATURE(Degree F)
SUCTION PRESSURE (PSIG)
OUTDOOR TEMPERATURE(Degree F)
PRESSURE CURVES forA5HP5018A1
@SCFM
650
110
115
120
125
130
135
140
145
150
155
160
165
170
50 60 70 80 90 100 110 120
(1)
170
220
270
320
370
420
470
520
50 60 70 80 90 100 110 120
(1)
(3)
(3)
(5)
(4)
(2)
(2)
INDOOR ENTERING
WETBULBCURVES
TOP TO BOTTOM
71,67, 63 AND59DEG F.
INDOOR ENTERING
WETBULB CURVES
TOP TO BOTTOM
71,67, 63 AND59DEG F.
LIQUID PRESSURE (PSIG)
OUTDOOR TEMPERATURE(Degree F)
@SCFM
650
150
200
250
300
350
400
450
500
-5 5152535455565
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM
80, 70 AND 60 DEG F.
SUCTION PRESSURE (PSIG)
OUTDOOR TEMPERATURE (Degree F)
30
50
70
90
110
130
150
-5 5152535455565
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM
80, 70 AND 60 DEG F.
Cooling
Heating