18-AC51D1-10E-EN
41
PRESSURE CURVES (Refer below table for models)
OUTDOOR TEMPERATURE (Degree F)
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) IN DOOR WET BULB 67 F.
(3) AT INTERSECTION
ACTUAL:
(4) LIQUID PRESSURE @ 600 CFM IS 306 PSIG
LIQUID PRESSURE SHOULD BE +/- 10 PSI OF CHART
(5) SUCTION PRESSURE @ 600 CFM IS 142 PSIG
SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART
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
40
50
60
70
80
90
100
110
120
(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.
Cooling
@SCFM
4TTR4024L1
4TTR4030L1
OD Model
800
950
4TTR4031L1
950
4TTR4025L1
950
4TTR4036L1
1100
4TTR4037L1
4TTR4042L1
4TTR4043L1
4TTR4048L1
1050
1300
1250
1400
4TTR4036M1
1100
4TTR4037M1
1050
LI
QU
ID PRESSURE (PSIG)
SU
CT
ION PRESSURE (PSIG)
71
63
67
59
Содержание 4TTR4018-060
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