3. OUTDOOR UNIT INSTALLATION

3-1. CONNECTING WIRES FOR OUTDOOR UNIT

1)Remove the service panel.

2)Remove the conduit cover.

3)Attach the conduit connector to conduit plate with lock nut then secure it against unit with screws.

4)Connect ground wires of indoor/outdoor unit connecting wire (A) and power supply cord (K) to the TB support.

5)Loosen the terminal screw, and attach indoor/outdoor unit connecting wire (A) from the indoor unit correctly on the terminal block. Attach the wire to the terminal block securely so that its core cannot be seen, and no external force affects the connecting section of the terminal block.

6)Firmly tighten the terminal screws. After tightening, verify that the wires are tightly fastened.

7)Connect power supply cord (K).

8)Install the conduit cover.

9)Install the service panel securely.

19/32 in.

1-3/8 in. (15 mm)

(35 mm)

Lead wire

L1 L2

Power supply cord (K)

Service panel

Lock nut

Conduit cover

Grounding terminal

Conduit plate

Connector

 

•

Make earth wire a little longer than others.

Terminal block

 

(More than 2-3/8 in. [60 mm])

•

For future servicing, leave some slack in

 

 

the connecting wires.

Indoor/outdoor unit connecting wire (A)

Power supply cord (K)

TB support

Conduit cover

3-2. FLARE CONNECTION

1)Cut the copper pipe as straight as possible with a pipe cutter. (Fig. 1, 2)

2)Remove all burrs from the cut section of the pipe, ensuring that precautions are taken to avoid getting metal shavings into the piping. (Fig. 3)

 5HPRYHÀDUHQXWVDWWDFKHGWRLQGRRUDQGRXWGRRUXQLWVWKHQSXWWKHPRQSLSH

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 you use.

5)Check

‡ &RPSDUHWKHÀDUHGZRUNZLWK)LJ

‡ ,IÀDUHLVGHIHFWLYHFXWRIIWKHVHFWLRQDQGUHSHDWSURFHGXUH

 

 

Nut

 

A inch (mm)

 

Tightening torque

Pipe diameter

 

 

 

 

 

inch

Clutch

Clutch

Wing nut

 

ft•lb

inch (mm)

 

(mm)

type tool

type tool

type tool

N•m

 

 

(kgf•cm)

 

 

 

for R410A

for R22

for R22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ø 1/4

(6.35)

1/4

 

 

0.06 to

13.7 to 17.7

10 to 13

(17)

 

 

(140 to 180)

 

 

 

 

 

0.08

 

 

ø 3/8

(9.52)

3/8

 

0.04 to

(1.5 to

34.3 to 41.2

25 to 30

 

2.0)

(22)

 

(350 to 420)

0 to 0.02

0.06

 

 

 

 

 

 

ø 1/2

(12.7)

1/2

(0 to 0.5)

(1.0 to

0.08 to

49.0 to 56.4

36 to 42

 

1.5)

(26)

 

(500 to 575)

 

0.10

 

 

 

 

 

 

 

ø 5/8

(15.88)

5/8

 

 

(2.0 to

73.5 to 78.4

54 to 58

 

 

2.5)

(29)

 

 

(750 to 800)

 

 

 

 

 

 

 

 

 

 

Good

No good

 

 

 

90°

 

 

 

Copper

 

 

 

 

pipe

 

 

 

 

 

Tilted

Uneven

Burred

 

Fig. 1

 

 

Fig. 2

Burr

Copper pipe

 

 

 

Spare reamer

 

 

 

 

Pipe cutter

 

 

 

 

 

 

Fig. 3

Flaring tool

 

A

 

 

 

 

Die

Copper pipe

 

 

 

 

Clutch type

Wing nut type

Flare nut

 

 

 

Fig. 4

 

Fig. 5

Smooth all around

Inside is shin-

 

 

 

ing without any

 

 

 

 

 

 

 

 

scratches.

 

 

 

Even length

 

 

 

 

all around

Fig. 6

 

 

 

Page 5 Page 7
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Mitsubishi Electronics MSZ-FD09/12NA Outdoor Unit Installation, Connecting Wires for Outdoor Unit, Flare Connection
Page 5 Page 7

MSZ-FD09/12NA specifications

Mitsubishi Electronics has been a leader in the HVAC industry for decades, and the MSZ-FD09/12NA is a testament to their commitment to innovation and efficiency. This wall-mounted indoor unit is part of Mitsubishi's compact and stylish FD Series, catering to both residential and commercial applications.

One of the standout features of the MSZ-FD09/12NA is its advanced energy efficiency. With a high seasonal energy efficiency ratio (SEER) rating, this model operates quietly while consuming minimal power, making it an environmentally friendly choice that can significantly reduce electricity bills. This level of efficiency is particularly beneficial for users looking to maintain a sustainable lifestyle.

The MSZ-FD09/12NA incorporates Mitsubishi’s INVERTER technology, allowing for continuous adjustments to the compressor speed. This results in more precise temperature control, maintaining comfort levels without the energy spikes commonly associated with traditional cooling and heating systems. This technology not only enhances comfort but also extends the lifespan of the unit through reduced wear and tear.

Enhanced air filtration is another important characteristic of the MSZ-FD09/12NA. The unit comes equipped with a multi-stage filtration system that includes a special anti-allergen filter. This feature is particularly beneficial for allergy sufferers, as it captures dust, pollen, and other airborne particles, ensuring cleaner air in the household or workspace.

In terms of design, the MSZ-FD09/12NA is sleek and unobtrusive, blending seamlessly with modern interiors. Its compact size doesn’t compromise its performance, making it an ideal choice for rooms with limited space. Furthermore, the unit operates quietly, with noise levels as low as 19 decibels, allowing for a peaceful environment free from disruptive sounds.

Control options for the MSZ-FD09/12NA are versatile. Users can utilize a wireless remote control for convenience or connect the unit to a centralized smart home system for enhanced functionality. This capability allows for temperature adjustments from anywhere in the home, offering significant flexibility for homeowners.

Overall, the Mitsubishi MSZ-FD09/12NA stands out in the crowded HVAC market for its combination of energy efficiency, advanced technologies, and user-friendly features. Whether it's for residential comfort or commercial applications, this unit promises consistent performance and reliability, ensuring that it meets the diverse needs of modern consumers.
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