Mitsubishi Electric PAAA18AA1 Installation Manual page 80

Field-installed connections
① ②
① CN105: IT terminal communications port (connector color: red)
② CN22: MA bus communications port (connector color: blue)
③ CN20: TH01 return air temperature (connector color: red)
④ CN4F: float switch (connector color: white)
⑤ CN44: TH02 and TH05 pipe temperatures (connector color: white)
NOTE
The float switch may be used in any cabinet orientation, but is expressly required in
the vertical orientation.
© 2022 Mitsubishi Electric US, Inc.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
80
③
④
⑤
Specifications are subject to change without notice.