Outdoor Unit Installation; Flaring Work - Mitsubishi Electric MSZ-SF25VE3 Installation Manual

Rear, right, or downward piping
1) Put the refrigerant piping and the drain hose
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the end.
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indoor unit on the installation plate (1).
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the unit to left and right.
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Drain Piping
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mercially sold insulation.
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Drain
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Fig. 1 Fig. 2
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Do not raise Accumulated
drain water
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3. OUTDOOR UNIT INSTALLATION

3-1. CONNECTING WIRES FOR OUTDOOR UNIT
1) Open the service panel.
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clamp.
6) Close the service panel securely.
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connecting wire (A)
Cord clamp
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3-2. FLARING WORK

1) Cut the copper pipe correctly with pipe cutter.
(Fig. 1, 2)
2) Completely remove all burrs from the cut cross section
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as you remove burrs in order to avoid to let burrs drop
in the piping.
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then put them on pipe having completed burr removal.
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dimension shown in the table. Select A mm from the
table according to the tool you use.
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Copper pipe
Burr
Spare reamer
Pipe cutter
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Cut off in case of
right piping.
Cut off in case of
downward piping.
Drain hose
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70 cm
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or more
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securely
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Tip of drain
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in water
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to the connecting wires.
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correspondent terminal when securing
the cord and/or the wire to the terminal
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Power supply cord (K)
Cord clamp
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Copper
pipe
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Good
Tilted Uneven Burred
Fig. 2
Flaring tool
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Left or left-rear piping
Note:
Be sure to reattach the drain
hose and the drain cap in case
of left or left-rear piping.
Otherwise, it could cause drops
of water to drip down from the
drain hose.
1) Put the refrigerant piping and the drain hose together, then
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2) Pull out the drain cap at the rear right of the indoor unit.
(Fig. 1)
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cap.
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(Fig. 2)
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drain hose forward.
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hose is to be attached at the rear of the indoor unit.
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the hole at the end of the cap and insert the cap fully
into the drain pan.
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of its inserting part at the drain pan.
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the upper part of indoor unit on installation plate (1). Then,
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At least
50 mm
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gap
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the indoor unit. (Fig. 5)
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9) Thrust the lower part of the indoor unit into the installation
plate (1).
Die
Flare nut
Pipe diameter
(mm) (mm)
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3-3. PIPE CONNECTION
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in burns or frostbite.
Indoor unit connection
Connect both liquid and gas pipings to indoor unit.
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Outdoor unit connection
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same manner applied for indoor unit.
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same tightening torque applied for indoor unit.
When installing the unit, securely connect the refrigerant
pipes before starting the compressor.
3-4. INSULATION AND TAPING
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2) For outdoor unit side, surely insulate every piping including valves.
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humidity are high, wind additional commercially sold insulation to prevent condensation.
Piping tape (G)
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Smooth all
around
Copper pipe
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all around
Fig. 5
A (mm)
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Clutch type Clutch type :LQJ QXW
tool tool type tool
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17
1.5 to 2.0
22
0 to 0.5 1.0 to 1.5
26
2.0 to 2.5
29
WARNING
Cut off in case of left
piping.
Drain cap
Drain cap
Fig. 1
Drain hose
Fig. 2
Drain cap
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Drain hose
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Fig. 5
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ing without any
scratches.
Fig. 6
Tightening torque
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 WR   WR 
  WR  500 to 575
 WR  750 to 800