Friedrich M12YG Installation Manual Download Page 5

Fig. 1

2.

 INSTALLING THE WALL HOOK BRACKET

INDOOR UNIT

1.

 CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING

3.

 FORMING THE DRAIN HOSE AND PIPE

(1) Install the wall hook bracket so that it is correctly positioned hori-

zontally and vertically. If the wall hook bracket is titled, water will
drip to the floor.

(2) Install the wall hook bracket so that it is strong enough to with-

stand the weight of an adult.

Fasten the wall hook bracket to the wall with 6 or more screws
through the holes near the outer edge of the bracket.

Check that there is no rattle at the wall hook bracket.

Fig. 2

[Rear piping, Right piping, Bottom piping]

Install the indoor unit piping in the direction of the wall hole and
bind the drain hose and pipe together with vinyl tape. (Fig. 3)

Install the piping so that the drain hose is at the bottom.

Wrap the pipes of the indoor unit that are visible from the outside
with decorative tape.

[For Left rear piping, Left piping]

Interchange the drain cap and the drain hose.

Fig. 3

Removal method of drain
hose

Remove the screw at the left of
drain hose and pull out drain
hose.

Installation method of
drain hose

Vertically insert the drain hose
toward the inside, so that the
drain fixture (blue) can accu-
rately align with the screw hole
around the drain cock.
After inserting and before re-
placing, please reinstall and fix
the removed screws.

●   

Be sure to install around the drain hose connector.

●   

As the screw is inside, be sure to use screwdriver treated with magnet.

Screw

Drain hose

Drain fixture
(blue)

Screw hole

Drain hose

Screw

Drain cock

Drain fixture (blue)

 CAUTION

(1)

  

In order to align the drain hose and drain cap, be

sure to insert securely and vertically. Incline in-
sertion will cause water leakage.

(2)

  

When inserting, be sure not to attach any mate-

rial besides water. If any other material is attached,
it will cause deterioration and water leakage.

(3)

  

After removing drain hose, be sure not to forget

mounting drain cap.

(4)

  

Be sure to fix the drain hose with tape to the bot-

tom of piping.

(5)

  

Prevent drain water frozen under low tempera-

ture environment.

When installing indoor unit's drain hose outdoors,
necessary measure for frost protection should be
taken to prevent drain water frozen.

  

Under low temperature environment (when outdoor
temperature under 32 °F), after cooling operation is
executed, water in the drain hose could be frozen.
Once drain water is frozen, the drain hose will
be blocked and water leakage may be resulted
for indoor unit.

(1) Cut a 2-9/16” (65 mm) diameter hole in the wall at the position shown

in (Fig. 1).

(2) When cutting the wall hole at the inside of the installation frame, cut

the hole within the range of the left and right center marks of the
installation frame.
When cutting the wall hole at the outside of the installation frame,
cut the hole at least 3/8” (10 mm) lower.

(3) Cut the hole so that the outside end is lower (3/16” to 3/8” (5 to

10 mm)) than the inside end.

(4) Always align the center of the wall hole. If misaligned, water leakage

will occur.

(5) Cut the wall pipe to match the wall thickness, stick it into the wall

cap, fasten the cap with vinyl tape, and stick the pipe through the
hole. (The connection pipe is supplied in the installation set.) (Fig. 5)

(6) For left piping and right piping, cut the hole a little lower so that

drain water will flow freely. (Fig. 1)

Wall hook bracket

Tapping screw

Right piping

Bind with vinyl tape

Indoor unit drain hose (bottom)

Pipe (top)
Rear piping

Bottom
piping

Drain cap

Indoor unit
drain hose

Remove the drain cap by pulling
at the projection at the end of
the cap with pliers, etc.

For left outlet piping, cut off the
piping outlet cutting groove
with a hacksaw.

Fasten with
vinyl tape

(Wall cap)

(Wall pipe)

(Inside)

Wall

(Outside)

3/16’’ to 3/8’’
(5 to 10 mm)
low

Installation method of Drain cap

Use a hexagonal wrench (3/16” (4 mm)
at opposite side) to insert the drain cap,
till the drain cap contacts the tip of drain
cock.

No gap

Hexagonal
wrench

Drain cock

Drain cap

 WARNING

If the wall pipe is not used, the cord interconnecting
the indoor and outdoor units may touch metal and
cause electric leakage.

 CAUTION

Install the wall hook bracket horizontally and perpen-
dicularly.

Center mark

at least 3/8” (10 mm)

lower

Center mark

2-9/16” (65 mm) dia. hole

2-9/16” (65 mm) dia.
hole

at least 3/8” (10 mm)
lower

Summary of Contents for M12YG

Page 1: ...tightly Loose wiring may cause overheating at con nection points and a possible fire hazard When Transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help...

Page 2: ...8 bar for low pressure To increase pressure resistance the hose material and base size were changed A conventional vacuum pump can be used by installing a vacuum pump adapter Special gas leakage detec...

Page 3: ...ELAY FUSE OR HACRTYPE CIRCUIT BREAKER Cut each pipe to the appropriate length 12 30 cm to16 40 cm to dampen vibration between units B Foamed polyethylene insulation for copper pipes as required to pre...

Page 4: ...he danger of com bustible gas leakage 2 Do not install near heat sources 3 If children under 10 years old may approach the unit take preventive measures so that they can not reach the unit 4 Install t...

Page 5: ...ozen under low tempera ture environment When installing indoor unit s drain hose outdoors necessary measure for frost protection should be taken to prevent drain water frozen Under low temperature env...

Page 6: ...ut the connection pipe to the nec essary length with a pipe cutter 2 Hold the pipe downward so that cuttings will not enter the pipe and remove the burrs 3 Insert the flare nut onto the pipe and flare...

Page 7: ...ve blank cap and the charging port cap 7 Pump down the system for at least 15 minutes then check if the compound pressure gauge reads 0 1 MPa 76 cmHg 1 bar 8 At the end of pump down close the low pres...

Page 8: ...erminal to over heat or result in unit malfunction A fire hazard may also exist Therefore be sure all wiring is tightly connected Connect wires to the matching numbers of terminals NOTE Connector trad...

Page 9: ...ws to install the cord clamp A For solid core wiring or F cable 1 Cut the wire end with a wire cutter or wire cutting pliers then strip the insulation to about 15 16 25 mm to expose the solid wire 2 U...

Page 10: ...ulation Vinyl tape Pipe Drain hose Cloth tape Wrap with cloth tape Left piping Connection cord Pipe Drain hose For connection from the left rear Connection cord Drain hose Wall pipe Connection pipe Dr...

Page 11: ...al branch circuit and install a special receptacle to supply power to the room air conditioner 4 Use a circuit breaker and receptacle matched to the capacity of the air conditioner 5 Do not extend the...

Page 12: ...djusting inter unit wire harness To connect inter unit wire harness to the terminal correctly please refer to Fig 19 to adjust the length of the part of Inter unit Wire harness ahead from conduit hold...

Page 13: ...e remote con trol unit check that it operates positively Install the remote control unit holder to a wall pillar etc with the tapping screw Fig 20 Remote control unit holder fixing Remote control unit...

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