Specifications

EDUS39-600-F20_b
FXOQ-M 28
Installation
PIPING CONNECTION PROCEDURE:
• Make sure the length of the refrigerant piping between the Electronic Expansion Valve unit and the Vertical Air Handler
unit is no more than 10 ft. and that the maximum difference in height is no more than 7 ft.
• When installing in the same outdoor unit, on the same floor, use the following diagram.
.
ADDITIONAL REFRIGERANT AMOUNT: When measuring the amount of additional refrigerant to fill, include the length of pip-
ing between the Electronic Expansion Valve unit and the Vertical Air Handling unit.
Additional filling amount: a+b+c+d+e+f+g+h+i+j+k+l+m+n+p+q
Allowable length after split (actual piping length)
B+C<115 ft (length from the first branch piping to the indoor unit) C<10 ft.
HEIGHT DIFFERENCE BETWEEN INDOOR UNITS: Install the Electronic Expansion Valve within a 49 ft. height difference
between the Vertical Handling Units. Make sure that the difference in height between the Electronic Expansion Valve unit and
the Vertical Handling unit is no more than 7 ft.