Daikin FCQ18PVJU - System Not Operating or Cooling;Heating Inadequately

EDSUSE28-956S Dimensions and service space
RZQ-P, M series 11
1
4. Dimensions and service space
4.1 Indoor unit
4.1.1 FCQ (Ceiling-mounted cassette type)
FCQ18PVJU / FCQ24PVJU / FCQ30PVJU
FCQ36MVJU / FCQ42MVJU
3D042633B
Unit (in.)