I
A
33-7/16
11-7/16
12-7/32
19-11/16
3/4
3/4
3/8
30-3/4
10-1/16
11-7/32
19-11/16
I
A
1
2
C
D
H
E
B
G
F
7
3
4
6
PIPING PREPARATION
1
Table below shows the specifications of pipes commercially available.
2
Ensure that the 2 refrigerant pipes are insulated to prevent condensation.
3
Refrigerant pipe bending radius must be 4 in. or more.
Pipe
Outside diameter
Minimum wall thickness Insulation thickness
Insulation
inch
inch
material
For liquid
1/4
0.0265
5/16
For
12 type
1/2
0.0285
5/16
gas 15, 17 type
5/8
0.0315
5/16
•
Minimum wall thickness is UL1995 33’s reference.
•
Refrigerant pipes of 10, 16, 23, 33 and 49 ft. are available as optional items.
CAUTION
Be sure to use the insulation of specified thickness. Excessive thickness may
cause incorrect installation of the indoor unit and lack of thickness may cause
dew drippage.
Be careful the
drain hose is not
raised.
Separate the 2 connecting pipes and
apply insulation individually.
5/16 in. thickness thermal insulation
plastic.
Decide the installation position using mark on the installation plate
indicating the indoor unit size as reference.
When the piping is to be attached to a
wall containing metals (tin plated) or
metal netting, use a chemically treated
wooden piece 13/16 in. or thicker
between the wall and the piping or
wrap 7 to 8 turns of insulation vinyl
tape around the piping.
Lock the catch.
Front
Piping can be directed towards rear,
right, downward, left or left-rear
directions.
Rear side
Right
Rear
Downward
Left-rear
Left
10 in. or more
1-3/6 in. or more
Units should be installed by licensed contrac-
tor according to local code requirement.
3. INSTALLATION DIAGRAM & ACCESSORIES
FLARED CONNECTIONS
•
This unit has flared connections on both indoor and outdoor sides.
•
Remove the valve cover of the outdoor unit, then connect the pipe.
•
Refrigerant pipes are used to connect the indoor and outdoor units.
Limits
Pipe length
49 ft. max.
Height difference
25 ft. max.
No. of bends
10 max.
•
Refrigerant adjustment ... If pipe length exceeds 25 ft., additional refrigerant
(R-22) charge is required.
(The outdoor unit is charged with refrigerant for pipe length up to 25 ft..)
Pipe length
Up to 25 ft.
No additional charge is required.
Exceeding 25 ft.
Additional charge is required.
(Refer to the table below.)
Refrigerant to
MS type
0.53 oz each 5 ft.
be added
MSH type
2.68 oz each 5 ft.
ACCESSORIES
Check the following parts before installation.
1
Installation plate
1
2
Installation plate fixing screw 4
×
25 mm
6
3
Remote controller mounting hardware
1
4
Fixing screw for
3
3.5
×
16 mm (Black)
2
5
Battery (AAA) for remote controller
2
6
Wireless remote controller
1
7
Felt tape (Used for left or left-rear piping)
1
PART TO BE PROVIDED AT YOUR SITE
Optional extension pipe
A
Indoor/outdoor unit connecting wire
1
B
Extension pipe
1
C
Wall hole sleeve
1
D
Wall hole cover
1
E
Pipe fixing band (The quantity depends
2 to 5
on the pipe length.)
F
Fixing screw for
E
4
×
20 mm (The
2 to 5
quantity depends on the pipe length.)
G
Piping tape
1
H
Putty
1
I
Drain hose (or soft PVC. hose,
1
19/32 in. inner dia. or hard PVC pipe VP16)
J
Refrigeration oil
1
10 in. or more
3-3/16 in. or more
5
Heat resisting
foam plastic
Specific
gravity 0.045
(Unit: inch)
Note:
If clearance behind the
outdoor unit is only
15-3/4 or 20 in., side
A
must be fully opened.
MU12TN and MUH12TN
MU15/17TN and MUH15TN
4 in. or more
20 in. or more
4 in. or more
4 in. or more
4 in. or more
4 in. or more
4 in. or more
14 in. or more
16 in. or more
4-3/8
×
13/16 slot
4-3/8
×
13/16 slot
Air outlet
Air outlet
14 in. or more
Note:
If clearance behind the
outdoor unit is only
15-3/4 or 20 in., side
A
must be fully opened.