Specifications

235
2) Connection to lower direction.
a) Cut off the accessory intake gas side connection pipe and then connect to the intake gas side atraight pipe.
b) Remove the back hall blank, pass through the hole the intake gas side, discharge gas side, and liquid pipes, and then
connect them to the service valve and the on-site piping. (Because the liquid side pipe is on-site piping, bend it to the
dimensions shown in the illustration at left.)
6562
Intake gas side
(Accessory)
Intake gas side
connection pipe
(Accessory)
Gas side
connection pipe
(Accessory)
Liquid pipe
(On-site piping)
Back
Half-brank
80
10540
107 100
6570
25075
60 43
100
85
(4) Air-tight test
(a) The unit has already been hermelically lested by Mitsubishi Heavy lndustries, but after connecting the piping, hermelically
test the connection piping and indoor units using the outdoor inlake gas side service valve check joint. Be sure to conduct the
lest while the service valve is closed.
(Belore enlenring the lest, apply the power to the flow divide controller.)
Hermetic lest pressure : 3.3MPa
(b) Conduct nitrogen gas pressuriation from the intake gas side.
(c) After the hermetic lest, be sure to remove the vacuum from the discharge side.
Outdoor unit
Indoor unit
Indoor unit
Flow divide controller
Closed
Closed
Closed
Liquid side
service valve
Intake gas side
service valve
Discharge gas side
service valve
Pressurizad
Unit : mm