Mitsubishi Electric Mr.Slim PKA-A FA Manual De Instalación página 6

4. Installing the refrigerant piping
1
E
31/32
B
Fig. 4-2
2
F G
1-3/16
1-17/32
1-15/32
2-29/32
Fig. 4-3
3
J
M
Fig. 4-4
Gas pipe
Thermal insulating
material for liquid pipe
Thermal insulating
refrigerant piping
Fig. 4-5
5. Drainage piping work (Fig. 5-1)
Field drain pipe
Drain socket
Felt tape 5
Fig. 5-1
6
C
D
2-5/32 D
B
4-23/32
43-11/16 7-7/32
C
B
H I
3-27/32 2-9/16
1-15/32
2-29/32
13-25/34
L
Liquid pipe
Band (large) 4
Insulation material 3
Band (small) 4
Band (small) 4
material for
Liquid pipe
Unit's drain pipe
Apply PVC adhesive
Drain pipe Gas pipe
(inch) 4.3. Positioning refrigerant and drain piping
1 Position of refrigerant and drain piping (Fig. 4-2)
2 Determine the position of the knockout holes on the unit body (Fig. 4-3)
• Make the knockout holes using a saw blade or an adequate knife.
Caution:
A
The side panel must be removed before drilling a knockout hole in it.
4-3/8
If a hole is made with the side panel in place, the refrigerant pipe within the unit
could be damaged.
3 L-shaped connection pipe (for gas piping) (Fig. 4-4)
A 107 mm, 4-7/32 inch (A24, A30),
(inch)
102 mm, 4-1/32 inch (A36)
B Drain hose
C Liquid pipe
D Gas pipe
E Drain hose in left-side piping
F Knockout holes on the unit body
1-3/16
(inch)
K
J
4.4. Insulating pipes (Fig. 4-5)
Refer to the Fig. 4-5 for insulating.
Tape
• Use a PVC pipe (I.D. ø20mm, 13/16 inch) for drain piping and provide 1/100 or
(inch)
more downward slope.
• Other PVC pipe sizes are available with the drain adaptor supplied.
• Drain pipes can be cut with a knife at the connection point according to the on-site
conditions.
• When connecting a PVC pipe, use adhesive to attach the supplied drain socket.
• To prevent dripping condensation, put felt tape 5 over the insulation materials on
the drain pipe.
Caution:
Liquid pipe
The drain pipe should be installed according to this Installation Manual to en-
sure correct drainage. Thermal insulation of the drain pipes is necessary to
prevent condensation. If the drain pipes are not properly installed and insu-
lated, condensation may drip on the ceiling, floor or other possessions.
G For left-side piping
H For lower-side piping
I For right-side piping
J L-shaped connection pipe (option)
K Unit side
L On-site piping side
M Piping