Marvair MAA1018A - Serial Number Date Code; Air Flow, Weights and Filter Sizes; General Operation; Table 1 CFM @ External Static Pressure

Marvair MAA/MGA Wall Mount AC Installation & Operation Manual
12/2021 Rev.16
7
1.3 Serial Number Date Code
20 = 2020 01 = January 05 = May 09 = September
21 = 2021 02 = February 06 = June 10= October
22 = 2022 03= March 07 = July 11 = November
23 = 2023 04 = April 08 = August 12 = December
1.4 Air Flow, Weights and Filter Sizes
Complete electrical and performance specications and dimensional drawings are in the Marvair Wall
Mount Air Conditioner Product Data Sheets.
Note: Follow local codes and standards when designing duct runs to deliver the required airow.
Minimize noise and excessive pressure drops caused by duct aspect ratio changes, bends, dampers and
outlet grilles in duct runs.
Model 0.10 0.15 0.20 0.25 0.30 0.40 0.50
MAA1018
685 670 670 642 640 600
MAA1020 800 785 770 725 680 600
MAA1024 800 785 770 725 680 600 500
MAA1030 1200 1150 1100 1050 1000 900 800
MAA1036 1290 1230 1170 1115 1060 1000 920
MAA1042 1500 1430 1360 1295 1230 1160 1070
MAA1048 1950 1900 1850 1815 1760 1680 1590
MAA1060/MAA2072 & MGA1072 1900 1850 1800 1700 1600 1500 1350
Values in bold are the minimum air flow.
Air flow ratings of 208-230 volt units are at 230v. Air flow ratings of 460 volt units are at 460 volts. Operation of units at a voltage different from the
rating point will affect air flow.
Table 1. CFM @ External Static Pressure (Wet Coil) (IWG)
Model INCHES MILLIMETERS PART NUMBER FILTERS PER UNIT MERV RATING
MAA1018 14 x 12 1 356 x 305 x 25 P/80122 1 N/A
MAA1020/1024 16 x 25 x 2 406 x 635 x 51 80137 1 8
MAA1024/1030/1036 "B2" INTERNAL 16 x 30 x 1 406 x 762 x 25 80136 1 N/A
MAA1024 "B2" RETURN GRILLE 11½ x 19½ x 1 292 x 495 x 25 91983 1 N/A
MAA1030/1036 & MAA2072 18 x 30 x 2 457 x 762 x 51 93184 1 8
MAA1030/1036 "B2" RETURN GRILLE 27½ x 13½ x 1 699 x 343 x 25 80769 1 N/A
MAA1042/1048 36½ x 22 x 2 927 x 559 x 51 80162 1 8
MAA1060 18 x 24 x 2 457 x 610 x 51 81257 2 8
MGA1072 18 x 24 x 2 457 x 610 x 51 81257 2 8
Table 2. Return Air Filter Sizes
Model Weight Base w/Economizer w/3 Phase w/Economizer & 3 Phase
MAA1018 Pounds (Kilograms) 265 (120) N/A N/A N/A
MAA1020/MAA1024 Pounds (Kilograms) 337 (153) 357 (162) 356 (161) 376 (171)
MAA1024/1030 "B2" Pounds (Kilograms) 378 (171) 400 (181) 397 (180) 419 (190)
MAA1030/MAA1036 Pounds (Kilograms) 397 (180) 419 (190) 416 (189) 438 (199)
MAA1036 "B2" Pounds (Kilograms) 380 (172) 403 (183) 418 (190) 441 (200)
MAA1042/MAA1048 Pounds (Kilograms) 453 (205) 476 (216) 491 (223) 514 (233)
MAA1060 Pounds (Kilograms) 469 (213) 492 (223) 522 (237) 545 (247)
MAA2072 Pounds (Kilograms) 717 (325) 740 (336) 770 (349) 793 (360)
MGA1072 Pounds (Kilograms) 571 (259) 594 (269) 624 (283) 647 (293)
Table 3. Installed Weights for Marvair Wall Mount AC Units
1.5 General Operation
Model Ventilation Conguration Temperature Range
Non-Economizer
Standard ("N") 20ºF – 131ºF (-7ºC – 55ºC)
Desert Duty ("ND") 20ºF – 131ºF (-0ºC – 55ºC)
Extreme Duty ("NE"), 60 Hz Only 0ºF – 131ºF (-18ºC – 55ºC)
With Economizer
Standard ("CE") -40ºF – 131ºF (-40ºC – 55ºC)
Desert Duty ("CD") -40ºF – 131ºF (-40ºC – 55ºC)
Extreme Duty ("CE"), 60 Hz Only -40ºF – 131ºF (-40ºC – 55ºC)
Table 4. Ambient Temperature Operating Range