Carrier R-22 Application Manual And Service Manual page 4

Calculate the linear length of vapor tube required, adding any
losses for the total number of elbows for application. (See Table
6.) Using this equivalent length, select desired vapor-line size from
Table 5. Subtract the nominal percentage loss from outdoor-unit
presale-literature Detailed Cooling Capacities data for the given
indoor/outdoor combination. Reference all notes of Table 5.
NOTE: When specifying vapor-line insulation, be aware of the
following standard practice:
All standard accessory-tubing kits are supplied with 3/8-in. insu-
lation on vapor line.
7 3 (5.56 x 9.53) SLOT
/ x /
32 8
4 REQ'D
J
C
A
1 /
2
(12.7)
TYP
B
M
SCREW
10 REQ'D
SUPPORT
4 REQ'D
BAFFLE
2 REQ'D
BAFFLE ASSEMBLY
Fig. 1—WeatherMaker™ Units
9
(3.45) DIA HOLE
/
64
2 REQ'D
H
1
6
/
16
(154.0)
G
1
/
2
SUPPORT
(12.7)
TYP
MAT'L: 18 GA STEEL
7
/
16
(11.6)
TYP E
9
(3.45) DIA HOLE
/
64
1 REQ'D
K
J
7
(5.56) DIA HOLE
/
32
3 REQ'D
1
/
4
L
(6.3)
TYP
D
BAFFLE
MAT'L: 20 GA STEEL
F
OUTDOOR
UNIT
For minimal capacity loss in long-line application, 1/2-in. insula-
tion should be specified.
For reference only, the close cell insulation material specified for
accessory tubing kits is a compound of vinyl, neoprene, or nitrile
blends of these polymers. Performance requirements include
thermal range of 0° F to 200°F (-17.8° C to 93° C) and a maximum
thermal conductivity of 0.28.
NOTE: Special consideration must be given to isolating intercon-
necting tubing from building structure. Isolate tubing so that
vibration or noise is not transmitted into structure.
4
3
/
8
(9.6)
TYP
7
/
16
(11.6)
TYP
1
/
4
(6.3)
TYP
7
x 2
/
32
(5.56 x 50.8) SLOT
AA
A95444