Indoor Unit Installation; Pipe Forming And Drain Piping - Mitsubishi Electric MSZ-GL71VGD 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
1) Determine the wall hole position.
2) Drill a ø75 mm hole. The outdoor side should be
5 to 7 mm lower than the indoor side.
3) Insert wall hole sleeve (C).
Installation plate (1)
Level
149 mm
or more
Wall
Fixing screw (2)
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.
necting wire (A) to the terminal block. Be careful not to make mis-wiring. Fix the wire to
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) the earth wire with the VA clamp. Never
fail to hook the left claw of the VA clamp. Attach the VA clamp securely.
Terminal block
15 mm
35 mm
Lead wire
the connecting wires.
(More than 60 mm)
small space. Take caution not to damage
the wires.
respondent terminal when securing the
cord and/or the wire to the terminal block.
Note: Do not place the wires between the
indoor unit and the installation plate (1).
Damaged wire could cause heat genera-
Wall
ø75 mm
Outdoor
side
Ceiling
55 mm or more
118 mm or more for left and left
back piping (using spacer)
140 mm
or more
100 mm
Insert Align the
Center of
the scale with
ø 75 mm hole
scale. * the line. *
* Same for left hole.
VA clamp
Fixing screw
Indoor/outdoor unit
connecting wire (A)
Indoor terminal block
Earth wire
(green/yellow)
Indoor/outdoor
unit
connecting wire
-
(A)
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
the end.
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
5-7 mm the unit to left and right.
4) Thrust the lower part of the indoor unit into the installation plate (1).
Drain Piping
cially sold insulation.
that should be provided at your site. (Fig. 2)
into the pipe. (Fig. 3)
Wall
Downward
slope
Fig. 1
Do not make drain piping as shown below.
Do not raise
-
Water Water
leakage
leakage
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,
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
(B).
9) Thrust the lower part of the indoor unit into the installation
plate (1).
-
Cut off in case of
right piping.
Drain
hose
70 cm
or more
Soft hose
I.D. 15 mm
Different
diameter joint
Fig. 2
Accumulated
drain water
Air
Water
Waving
leakage
Piping tape (G)
Felt tape (4)
Felt tape (4)
Piping tape (G)
Liquid pipe
Gas pipe
Indoor/outdoor unit
connecting wire (A)
Cut off in case of
downward piping.
-
Drain hose
Hard vinyl chloride
pipe I.D. 30 mm
Insert
securely
Fig. 3
Tip of drain
At least
hose dipped 50 mm
in water
gap
Ditch
Cut off in case of left
piping.
Drain cap
Drain cap
Fig. 1
Drain hose
Fig. 2
Drain cap
Fig. 3
Drain hose
Fig. 4
Fig. 5