Mitsubishi MXZ-4E80VAD, Installation Manual

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En-5
Fig. 1
Fig. 2
Fig. 3 Fig. 4
Fig. 5 Fig. 6
3-1. FLARING WORK
Pipe diameter
(mm)
Nut
(mm)
A (mm) Tightening torque
Clutch
type tool
for R410A
Clutch
type tool
for R22
Wing nut
type tool
for R22
N•m kgf•cm
ø6.35 (1/4”) 17
0 to 0.5 1.0 to 1.5
1.5 to 2.0 13.7 to 17.7 140 to 180
ø9.52 (3/8”) 22 34.3 to 41.2 350 to 420
ø12.7 (1/2”) 26
2.0 to 2.5 49.0 to 56.4 500 to 575
ø15.88 (5/8”) 29 73.5 to 78.4 750 to 800
Tilted Uneven Burred
Good
No good
Burr Copper pipe
Spare reamer
Pipe cutter
Smooth all
around
Even length
all around
Inside is shin-
ing without any
scratches.
Flare nut
Die
Copper pipe
Clutch type
Flaring tool
Wing nut type
3-2. PIPE CONNECTION
1) Apply a thin coat of refrigeration oil (G) to the flared ends of the pipes and
the pipe connections of the outdoor unit. Do not apply refrigeration oil on
screw threads. Excessive tightening torque will result in damage on the
screw.
2) Align the center of the pipe with that of the pipe connections of the outdoor
unit, then hand tighten the flare nut 3 to 4 turns.
3) Tighten the flare nut with a torque wrench as specified in the table.
• Over-tightening may cause damage to the flare nut, resulting in refriger
-
ant leakage.
• Be sure to wrap insulation around the piping. Direct contact with the bare
piping may result in burns or frostbite.
3-3. INSULATION AND TAPING
1) Cover piping joints with pipe cover.
2) For outdoor unit side, surely insulate every piping including valves.
3) Using piping tape (E), apply taping starting from the entry of outdoor unit.
• Stop the end of piping tape (E) with tape (with adhesive agent attached).
• When piping have to be arranged through above ceiling, closet or where
the temperature and humidity are high, wind additional commercially sold
insulation to prevent condensation.
Copper
pipe
1) Cut the copper pipe correctly with pipe cutter. (Fig. 1, 2)
2) Completely remove all burrs from the cut cross section of pipe. (Fig. 3)
• Aim the copper pipe downward while removing burrs to prevent burrs
from dropping in the pipe.
3) Remove flare nuts attached to indoor and outdoor units, then put them
on pipe having completed burr removal. (Not possible to put them on
after flaring work.)
4) Flaring work (Fig. 4, 5). Firmly hold copper pipe in the dimension shown
in the table. Select A mm from the table according to the tool selected.
5) Check
• Compare the flared work with Fig. 6.
• If flare is noted to be defective, cut off the flared section and do flaring
work again.
WARNING
When installing the unit, securely
connect the refrigerant pipes before
starting the compressor.
CAUTION
When there are the ports which are
not used, make sure their nuts are
tightened securely.
3. FLARING WORK AND PIPE CONNECTION
• Be sure to attach each screw to its correspondent terminal when securing the cord and/or the wire to the terminal block.
• Make earth wire a little longer than others. (More than 35 mm)
• For future servicing, give extra length to the connecting wires.
1 2 3 C
<OUTDOOR UNIT>
Indoor/outdoor unit
connecting wire
<INDOOR UNIT>
Terminal block
POWER SUPPLY
~/N 230 V 50 Hz
Terminal block Terminal block
Terminal block for
power supply Terminal block
This unit has demand response capability which is compliant with AS/NZS 4755.3.1. To activate this function, you need to make a contract with remote
agents such as electric supply company, then this unit should be connected to Demand response enabling devise (DRED). For further information,
consult your dealer. This unit supports 3 Demand Response Modes (DRMs): DRM1, DRM2 and DRM3.
CAUTION
• To prevent malfunction caused by noise, route the cord connecting this unit to DRED and the power supply cord as parallel as possible.
• Do not connect the demand control transmission cable to the terminal block for power supply.
• Do not pull, extremely bend or apply strong pressure on the wire to prevent failure.
• Do not screw DRED to outdoor unit.
• Do not put DRED in outdoor unit.
• Secure electrical wiring above clamp.
• Do not get DRED wire caught in the service panel.
1 : DRM 1
2 : DRM 2
3 : DRM 3
C : COMMON
AS/NZS4755
terminal block
35 mm
15 mm
Lead wire
Model
INDOOR /
OUTDOOR UNIT
MXZ-5E100VAD
A – E
MXZ-4E80VAD
A – D
WG79A696H02_en.indd 5 2016/04/21 14:46:39