PAA unit airflow restriction table
Airflow
CMM
Maximum
CFM
CMM
Minimum
CFM
NOTE
The above airflow restriction is limited to the heat pump operation only.
WARNING
• Ensure the gas furnace complies with ANSI-Z21.47/CSA2.3 standards by NRTL 3rd
party lab such as AGA, CSA, UL, or ETL/Intertek. Mitsubishi Electric air conditioner/
heat pump system must only be connected with ANSI-Z21.47/CSA2.3 certificated gas
furnace.
– Improper connection may result in poisonous gas, fire, explosion, electric shock or
water leak.
• Do not install the PAA unit onto any OIL or DRUM type furnaces.
– Failure to follow this warning could result in personal injury or death.
• Do NOT install the PAA unit on any furnaces or applications where supply air
temperature could exceed 200º F.
– Failure to follow this warning could result in personal injury or death.
• The PAA unit should only be installed on a furnace with an output capacity no greater
than 300% of the rated PAA unit cooling capacity.
– Failure to follow this warning could result in personal injury or death.
Specifications are subject to change without notice.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
PAA-
PAA-
A18AA1
A24AA1
PAA-
PAA-
A18BA1
A24BA1
23.0
23.5
812
830
12.0
15.6
424
551
25
IDU
PAA-
PAA-
A30AA1
A36BA1
PAA-
PAA-
A30BA1
A36CA1
29.0
34.0
1024
1201
19.8
22.7
700
800
© 2022 Mitsubishi Electric US, Inc.
PAA-
A42BA1
PAA-
A42CA1
47.0
1660
26.5
936