28
88-A4AC5001-1A-EN
Section 18. Pressure Curves
PRESSURE CURVES (Refer below table for models)
LI
QU
ID PRESSURE (PSIG)
OUTDOOR TEMPERATURE (Degree F)
SU
CT
ION PRESSURE (PSIG)
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, LIQUID 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 LIQUID (4) OR SUCTION (5) PRESSURE IN LEFT COLUMN .
EXAMPLE: (1) OUTDOOR TEMP. 82 F.
(2) INDOOR WET BULB 67 F.
(3) AT INTERSECTION
ACTUAL:
(4) LIQUID PRESSURE @ 600 CFM IS 286 PSIG
LIQUID PRESSURE SHOULD BE +/- 10 PSI OF CHART
(5) SUCTION PRESSURE @ 600 CFM IS 143 PSIG
SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART
110
115
120
125
130
135
140
145
150
155
160
165
170
40
50
60
70
80
90
100
110
120
170
220
270
320
370
420
470
520
40
50
60
70
80
90
100
110
120
(1)
(1)
(3)
(3)
(5)
(4)
(2)
(2)
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM
71, 67, 63 AND 59 DEG F.
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM
71, 67, 63 AND 59 DEG F.
OD Model
A4AC5018D1
Cooling
@SCFM
600
71
67
63
59
Summary of Contents for A4AC5018D1000A
Page 24: ...24 88 A4AC5001 1A EN 3 1 2 4 Ton Units PRINTED FROM D158514P01 2 1 2 Ton Units Accumulator...
Page 25: ...88 A4AC5001 1A EN 25 5 Ton Units PRINTED FROM D158515P01...
Page 26: ...26 88 A4AC5001 1A EN Section 17 Wiring Diagrams A4AC5018 060 Models...
Page 27: ...88 A4AC5001 1A EN 27 A4AC5018 060 Models...
Page 31: ...Notes...
