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520
470
420
370
320
270
220
170
170
165
160
155
150
145
140
135
130
125
120
115
110
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
(4) LIQUID PRESSURE @ 600 CFM IS 300 PSIG
(5) SUCTION PRESSURE @ 600 CFM IS 143 PSIG
26
PRESSURE CURVES (Refer below table for models)
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM
71, 67, 63 AND 59 DEG F.
(4)
40
50
60
70
OUTDOOR TEMPERATURE (Degree F)
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM
71, 67, 63 AND 59 DEG F.
(5)
40
50
60
70
OUTDOOR TEMPERATURE (Degree F)
(3)
(1)
80
90
100
(3)
(1)
80
90
100
ACTUAL:
LIQUID PRESSURE SHOULD BE +/- 10 PSI OF CHART
SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART
(2)
110
120
OD Model
A5AC4024A1
A5AC4030A1
A5AC4036A1
71
(2)
A5AC4042A1
67
A5AC4048A1
63
59
110
120
88-A5AC4001-1A-EN
Cooling
@SCFM
750
850
950
1150
1350
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