User Manual

11-AC46D1-1B-EN 05 Jul 2022
Supersedes 11-AC46D1-1A-EN (April 2022)
About American Standard Heating and Air
Conditioning
American Standard has been creating com-
fortable and affordable living environments for
more than a century. For more information,
please visit www.americanstandardair.com.
© 2022 American Standard Heating and Air Conditioning
The manufacturer has a policy of continuous data improvement
and it reserves the right to change design and specifications with-
out notice. We are committed to using environmentally conscious
print practices.
The AHRI Certified mark indicates company participation in the
AHRI Certification program. For verification of individual certified
products, go to ahridirectory.org.
PRESSURE CURVES (Refer below table for models)
LIQUID PRESSURE (PSIG)
OUTDOOR TEMPERATURE (Degree F)
SUCTION 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 313 PSIG LIQUID PRESSURE SHOULD BE +/- 10 PSI OF CHART
(5) SUCTION PRESSURE @ 600 CFM IS 134 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 100110 120
170
220
270
320
370
420
470
520
40 50 60 70 80 90 100110 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.
71
67
63
59
OD Model
4A7A5060N1
Cooling
@SCFM
1450