Carrier 38AKS013-024 Installation, Start-Up And Service Instructions Manual page 9

Table 4A — Refrigerant Piping Sizes — 60 Hz Units
LENGTH OF INTERCONNECTING PIPING, FT (M)
0-15 15-25
UNIT
(0-4.5) (4.5-7.5)
38AKS
Line Size (in. OD)
L S L S
013 1 ⁄ 1 1 ⁄ 1 ⁄ 1 1 ⁄
2 8 2 8
014 1 ⁄ 1 1 ⁄ 1 ⁄ 1 3 ⁄
2 8 2 8
016 ⁄ 1 ⁄ ⁄ 1 ⁄
1 3 5 3
2 8 8 8
024 5 ⁄ 1 5 ⁄ 5 ⁄ 1 5 ⁄
8 8 8 8
LEGEND
L — Liquid
S — Suction
Close-coupled.
*Requires a double suction riser if 2 unloaders are used and the
evaporator is below the condensing unit. See Table 4B and Fig. 4
for more information.
NOTES:
1. Pipe sizes are based on a 2 F (1.1 C) loss for liquid lines and a
1.5 F (0.8 C) loss for suction lines.
2. Pipe sizes are based on an equivalent length equal to the maxi-
mum length of interconnecting piping plus 50% for fittings. A more
accurate estimate may result in smaller sizes.
3. Line size conversion to mm:
in.
⁄
1
2
5 ⁄
8
7 ⁄
8
1 1 ⁄
8
1 ⁄
3
8
1 5 ⁄
8
2 1 ⁄
8
Table 4B — Refrigerant Piping Sizes,
Double Suction Risers — 60 Hz Units
LENGTH OF INTERCONNECTING PIPING, FT (M)
50-75
UNIT
(15-23)
38AKS
Line Size (in. OD)
A B
013 — —
014 1 1 ⁄ 1 3 ⁄
8 8
016 — —
NOTES:
1. See Fig. 4 for ''A,'' ''B,'' and ''C'' dimensions.
2. No double suction risers are needed for unit size 024.
3. See Table 4A for line size conversion to mm.
25-50 50-75 75-100
(7.5-15) (15-23) (23-30)
L S L S L
5 ⁄ 1 3 ⁄ 5 ⁄ 1 3 ⁄ 5 ⁄ 1
8 8 8 8 8
5 ⁄ 1 3 ⁄ 5 ⁄ 1 5 ⁄ * 7 ⁄ 1
8 8 8 8 8
⁄ 1 ⁄ ⁄ 1 ⁄ ⁄ 2
5 5 7 5 7
8 8 8 8 8
7 ⁄ 1 5 ⁄ 7 ⁄ 2 1 ⁄ 7 ⁄ 2
8 8 8 8 8
mm
12.7
15.9
22.2
28.6
34.9
41.3
54.0
75-100
(23-30)
C A B C
— 1 ⁄ 1 ⁄ 1
1 3 5
8 8
1 5 ⁄ 1 1 ⁄ 1 3 ⁄ 1 5
8 8 8
— 1 3 ⁄ 1 5 ⁄ 2 1
8 8
Table 5A — Refrigerant Piping Sizes — 50 Hz Units
LENGTH OF INTERCONNECTING PIPING, FT (M)
0-15
COND
(0-4.5)
UNIT
38AKS
S L
5 ⁄ * 013 1 ⁄ 1
8 2
5 ⁄ * 014 1 ⁄ 1
8 2
⁄ * 016 ⁄ 1
1 5
8 8
1 ⁄ 024 5 ⁄ 1
8 8
*Requires a double suction riser if 2 unloaders are used and the evapo-
rator is below the condensing unit. See Table 5B and Fig. 4 for more
information.
NOTES:
1. Pipe sizes are based on 2 F (1.1 C) max loss for liquid lines and
1.5 F (0.8 C) max loss for suction lines, selected at maximum length
for each interval and for matched systems at nominal rating con-
ditions, nominal airflow.
2. Pipe sizes are based on an equivalent length equal to the maxi-
mum length of interconnecting piping plus 50% for fittings. A more
accurate estimate may result in smaller sizes.
3. See Table 4A for line size conversion to mm.
Table 5B — Refrigerant Piping Sizes,
Double Suction Risers — 50 Hz Units
LENGTH OF INTERCONNECTING PIPING FT (M)
COND
(7.5-15)
UNIT
38AKS
A
013 —
014 —
016 1 1 ⁄
8
NOTES:
1. See Fig. 4 for ''A,'' ''B,'' and ''C'' dimensions.
2. Double suction risers are not required for unit size 024.
3. See Table 4A for line size conversion to mm.
⁄
8
⁄
8
⁄
8
Fig. 4 — Suction Line Piping
9
15-25 25-50
(4.5-7.5) (7.5-15) (15-23)
Line Size (in. OD)
S L S L S L
1 ⁄ 1 ⁄ 1 1 ⁄ 5 ⁄ 1 3 ⁄ 5 ⁄
8 2 8 8 8 8
1 ⁄ 5 ⁄ 1 3 ⁄ 5 ⁄ 1 3 ⁄ 7 ⁄
8 8 8 8 8 8
⁄ ⁄ 1 ⁄ ⁄ 1 ⁄ * ⁄
3 5 3 5 5 7
8 8 8 8 8 8
3 ⁄ 5 ⁄ 1 3 ⁄ 5 ⁄ 1 5 ⁄ 7 ⁄
8 8 8 8 8 8
25-50 50-75
(15-23)
Line Size (in. OD)
B C A B C
— — — — —
— — 1 ⁄ 1 ⁄ 1 ⁄
1 3 5
8 8 8
1 3 ⁄ 1 5 ⁄ 1 1 ⁄ 1 3 ⁄ 1 5 ⁄
8 8 8 8 8
LEGEND
Suction Riser Without Trap
Suction Riser With Trap
Suction Line to Condensing Unit
Short Vertical Riser Into
Condensing Unit:
38AKS013
38AKS014,016 — 1
38AKS024
50-75 75-100
(23-30)
S L S
1 3 ⁄ 5 ⁄ 1 3 ⁄ *
8 8 8
1 5 ⁄ * 7 ⁄ 1 5 ⁄ *
8 8 8
1 ⁄ * ⁄ 1 ⁄ *
5 7 5
8 8 8
1 5 ⁄ 7 ⁄ 1 5 ⁄
8 8 8
75-100
(23-30)
A B C
1 1 ⁄ 1 3 ⁄ 1 5 ⁄
8 8 8
1 ⁄ 1 ⁄ 1 ⁄
1 3 5
8 8 8
1 1 ⁄ 1 3 ⁄ 1 5 ⁄
8 8 8
— 1 1 ⁄ in. OD
8
3 ⁄ in. OD
8
— 1 5 ⁄ in. OD
8