Toshiba MCY-MAP0401HT Installation Manual page 9

Pipe connecting method of valve at gas side
Outdoor unit Gas pipe
capacity type diameter
MAP040 type Ø15.9 Connect Ø15.9 pipe with flaring.
MAP050 type
MAP060 type Ø19.1 For braze connection of Ø19.1 gas pipe, refer to the following method.
1) Form the pipe so that the end part of the pipe will be out from the outdoor unit along the
taking-out direction of the pipe.
The Ø15.9 gas pipe to be supplied locally.
2) Using the joint socket (Accessory), connect with braze Ø15.9 gas pipe and Ø19.1 gas pipe
at outside of the outdoor unit.
3) After connecting the pipes, apply thermal insulation process to the gas pipe until near the
valve.
Flare
connection
15-EN
Pipe connecting method of valve at gas side
Ball valve of
gas side Ø15.9
Flare
connection
Gas pipe Ø15.9
(Local supply)
Ball valve of
gas side Ø15.9
Gas pipe Ø15.9
(Local supply)
Gas pipe Ø19.1
(Local supply)
Joint socket
Braze connection
(Accessory)
(A connect with braze)
• Coupling size of brazed pipe
Connected section
External size Internal size
K G
Standard outer dia.
External size
of connected
Standard outer dia. (Allowable difference)
copper pipe
C
6.35 6.35 (±0.03)
9.52 9.52 (±0.03)
12.70 12.70 (±0.03)
15.88 15.88 (±0.03)
19.05 19.05 (±0.03)
Selection of pipe materials and size
• Selection of pipe material
Material: Phosphorus deoxidation seam-less pipe
• Capacity code of indoor and outdoor units
• For the indoor unit, the capacity code is decided at each capacity rank.
• The capacity codes of the outdoor units are decided at each capacity rank.
The maximum No. of connectable indoor unit and the total value of capacity codes of the indoor units are also decided.
Minimum wall thickness for R410A application
Soft Harf Hard or Hard OD (Inch)
OK OK 1/4"
OK OK 3/8"
OK OK 1/2"
OK OK 5/8"
NG * OK 3/4"
Table 1
Capacity code
Indoor unit
capacity type
Equivalent to HP Equivalent to capacity
007 type 0.8 2.2
009 type 1 2.8
012 type 1.25 3.6
015 type 1.7 4.5
018 type 2 5.6
024 type 2.5 7.1
027 type 3 8
030 type 3.2 9
036 type 4 11.2
048 type 5 14
– 8 –
Connected section
Internal size
Min. depth of
insertion
Oval value
F K G
6.45 ( +0.04 ) 7 6 0.06 or less
-0.02
+0.04
9.62 ( ) 8 7 0.08 or less
-0.02
+0.04
12.81 ( ) 9 8 0.10 or less
-0.02
+0.04
16.00 ( ) 9 8 0.13 or less
-0.02
+0.03
19.19 ( ) 11 10 0.15 or less
-0.03
OD (mm) Minimum wall thickness (mm)
6.35 0.80
9.52 0.80
12.70 0.80
15.88 1.00
* If the pipe size is Ø19.0 or
more, use a suitable
19.05 1.00
material.
Table 2
Total capacity code of
No. of
Capacity code
Outdoor unit
connectable indoor units
connectable
capacity type
indoor units
Equivalent to HP Min. (HP)
040 type 4 6 3.2
050 type 5 8 4.0
060 type 6 9 4.8
(Unit: mm)
Min. thickness
of coupling
0.50
0.60
0.70
0.80
0.80
Max. (HP)
5.2
6.5
7.8
EN
16-EN