Indoor Unit Installation; Pipe Forming And Drain Piping - Mitsubishi Electric MSZ-AP22VG(K)D Installation Manual

2. INDOOR UNIT INSTALLATION

2-1. FIXING OF INSTALLATION PLATE
in other holes.
ing the wires.
using 11 × 20 · 11 × 26 oval hole (450 mm pitch).
2-2. WALL HOLE DRILLING
7 mm lower than the indoor side.
3) Insert wall hole sleeve (C).
Installation plate (1)
Level
106 mm
or more
Wall
Fixing
screw (2)
The union joints of the indoor
unit are 110 mm to the left of
these punch marks.
2-3. CONNECTING WIRES FOR INDOOR UNIT
You can connect indoor/outdoor lead wire without removing the front panel.
1) Open the front panel.
2) Remove VA clamp.
3) Pass indoor/outdoor unit connecting wire (A) from the back of the indoor unit and process
the end of the wire.
the terminal block securely so that no part of its core is appeared, and no external force
is conveyed to the connecting section of the terminal block.
5) Firmly tighten the terminal screws to prevent them from loosening. After tightening, pull
6) Secure indoor/outdoor unit connecting wire (A) and the earth wire with the VA clamp.
Never fail to hook the left claw of the VA clamp. Attach the VA clamp securely.
15 mm
35 mm
Lead wire
the connecting wires.
(More than 60 mm)
small space. Take caution not to damage
the wires.
spondent terminal when securing the cord
and/or the wire to the terminal block.
Note:
indoor unit and the installation plate (1).
Wall
ø65 mm
Ceiling 61 mm or more
138 mm or more for left and left
back piping (using spacer)
126 mm
or more
100 mm
Center of
Insert the Align the
ø65 mm hole
scale. * scale with
the line. *
* Same for left hole.
VA clamp
Fixing screw
Indoor/outdoor unit
connecting wire (A)
Indoor terminal block
Earth wire
S1 S2 S3
(green/yellow)
Indoor/outdoor
unit connecting
wire (A)
-
S1 S2 S3
Outdoor terminal block
-

2-4. PIPE FORMING AND DRAIN PIPING

- Pipe Forming
- tion material (obtainable at a store) around it.
Rear, right, or downward piping
1) Put the refrigerant piping and the drain hose togeth-
2) Insert the piping and the drain hose into the wall
hole sleeve (C), and hook the upper part of the
indoor unit on the installation plate (1).
3) Check if the indoor unit is hooked securely on the installation plate (1) by moving the
5-7 mm
unit to left and right.
4) Thrust the lower part of the indoor unit into the installation plate (1).
Outdoor
side
Drain Piping
cially sold insulation.
that should be provided at your site. (Fig. 2)
into the pipe. (Fig. 3)
Wall
slope
Fig. 1
Water Water
-
leakage leakage
Left or left-rear piping
Note:
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,
Felt tape (4) overlap width should be 1/3 the tape width.
Use a bandage stopper at the end of felt tape (4).
2) Pull out the drain cap at the rear right of the indoor unit.
(Fig. 1)
cap.
3) Pull out the drain hose at the rear left of the indoor unit.
(Fig. 2)
drain hose forward.
4) Put the drain cap into the section to which the drain hose
is to be attached at the rear of the indoor unit. (Fig. 3)
the hole at the end of the cap and insert the cap fully
into the drain pan.
5) Insert the drain hose fully into the drain pan at the rear
right of the indoor unit. (Fig. 4)
of its inserting part at the drain pan.
6) Insert the drain hose into wall hole sleeve (C), and hook
the upper part of indoor unit on installation plate (1).
Then, move the indoor unit completely to the left in order
to make placing the piping in the back space of the unit
easier.
7) Cut out a piece of cardboard from the shipping box, roll
it up, hook it onto the back rib, and use it as a spacer to
lift the indoor unit. (Fig. 5)
8) Connect the refrigerant piping with the extension pipe
9) Thrust the lower part of the indoor unit into the installation
plate (1).
Felt tape (4)
Piping tape (G)
-
Cut off in case of
right piping.
hose
Hard vinyl chloride
70 cm
or more
Soft hose
diameter joint
Fig. 2
Accumulated
drain water
Air
Water
Waving
leakage
Piping tape (G)
Felt tape (4)
Liquid pipe
Gas pipe
Indoor/outdoor unit
connecting wire (A)
Cut off in case of
downward piping.
-
Insert
securely
Fig. 3
Tip of drain
At least
hose dipped 50 mm
in water gap
Cut off in case of
left piping.
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5