Mitsubishi Electric S Series Manual page 70

CEILING-CONCEALED
6
[Fig. 6-1]
ØA
[Fig. 6-3]
90
Copper tubes No good
Good Tilted
[Fig. 6-6]
A
Flaring tool Flare nut
Die Y oke
Copper tube
[Fig. 6-9]
Pipe cover (small) (accessory)
Caution:
Pull out the thermal insulation on the refrigerant piping at the
site, insert the flare nut to flare the end, and replace the insu-
lation in its original position.
Take care to ensure that condensation does not form on ex-
posed copper piping.
Liquid end of refrigerant piping
[Fig. 6-10]
Downward slope 1/100 or more
Connection dia. R1 external thread
Indoor unit
Collective piping
Maximize this length to approx. 10 cm
B-70
6.1
ØB
Indoor unit
Outdoor unit
6.2
[Fig. 6-4]
Burr
Uneven
Copper tube/pipe
Burred
[Fig. 6-7]
Smooth all around
Inside is shining without
any scratches
Even length all around
Gas end of refrigerant piping
Site refrigerant piping
Main body
Pipe cover (large) (accessory)
Thermal insulation (field supply)
Pull
Flare nut
Return to original position
6.5
Model
SEZ-KD25, 35
SEZ-KD50
SEZ-KD60
SEZ-KD71
[Fig. 6-5]
Spare reamer
Pipe cutter
[Fig. 6-8]
Too much
Cracked
Tilted
Uneven
Scratch on
Bad examples
flared plane
Ensure that there is no gap here
Plate on main body
Band (accessory)
Ensure that there is no gap here. Place join upwards.
[Fig. 6-11]
5
Indoor unit Drain hose (accessory)
Pipe cov er (short) (accessory) Drain pipe (O.D. ø32 PVC TUBE, field supply)
Tie band (accessory) Insulating material (field supply)
Band fixing part Max.145 ± 5 mm
Insertion margin
S series
A B
9.52 6.35
12.7 6.35
15.88 6.35
15.88 9.52
Flare nut
Copper tube
6.3
20
20
20
20
25