Carrier 38AUZ - Page 12

12
Table 5 – 38AUZ 07-08 50H z Piping Recommendations (Single-Circuit Unit)
R---410A Equivalent Length
meter 0 --- 1 2 12--- 23 23--- 34 34--- 46 46--- 57
feet 0 --- 3 8 38---75 75--- 113 113--- 150 150--- 188
Model
Linear Length
meter 0 --- 7 . 5 7.5 --- 15 15--- 23 23--- 30 30--- 38
feet 0 --- 2 5 25---50 50--- 75 75--- 100 100--- 125
38AUZ*07 Liquid Line
3
/
8
3
/
8
1
/
2
3
/
8
1
/
2
3
/
8
1
/
2
3
/
8
1
/
2
Max Lift
SI (m)
Novation 7.5 15 16 23 9 29 10 34
RTPF 7.5 15 19 23 12 30 11 38
EN (ft)
Novation 25 50 53 75 34 97 33 112
RTPF 25 50 63 75 42 100 38 125
Suction Line
7
/
8
7
/
8
7
/
8
7
/
8
7
/
8
1 ---
1
/
8
Charge
SI (kg)
Novation 3.8 4.4 4.9 5.9 5 .4 6.8 6.1 7.9
RTPF 6.4 7.0 7.4 8.5 7.9 9.3 8.7 10.4
EN (lbs)
Novation 8.4 9.8 10.8 13.1 11.8 14.9 13.5 17.4
RTPF 14.0 15.4 16.4 18.7 17.4 20.5 19.1 23.0
38AUZ*08 Liquid Line
1
/
2
1
/
2
5
/
8
1
/
2
5
/
8
1
/
2
5
/
8
1
/
2
5
/
8
Max Lift
SI (m)
Novation 7.5 9 11 7 10 DNU 10 10 16
RTPF 7.5 15 NR 23 NR 27 30 18 38
EN (ft)
Novation 25 30 38 24 36 DNU 35 33 53
RTPF 25 50 NR 75 NR 89 100 62 125
Suction Line
7
/
8
7
/
8
1 ---
1
/
8
1 ---
1
/
8
1 ---
1
/
8
Charge
SI (kg)
Novation 5.5 6.3 7.2 7 .4 8.6 DNU 9.9 9.1 11.2
RTPF 8.6 9.4 NR 10.4 NR 11.3 13.0 12.2 14.3
EN (lbs)
Novation 12.2 13.9 15.8 16.2 19.0 DNU 21.9 20.0 24.8
RTPF 19.0 20.7 NR 23.0 NR 24.9 28.7 26.8 31.6
Legend:
Equivalent
Length
Equivalent tubing length, including effects of refrigeration specialties devices
Linear Length Linear tubing length, feet
Liquid Line Tubing size, inches OD.
Max Lift Maximum liquid lift (indoor unit ABOVE outdoor unit only), at maximum permitted liquid line pressure drop
S Linear Length Less than 30 m (100 ft): Minimum 1.1° C (2.0° F) subcooling entering TXV
S Linear Length Greater than 30 m (100 ft): Minimum 0.3° C (0.5° F) subcooling entering TXV
Suction Line Tube size, inches OD
Charge Charge Quantity, lbs. Calculated for both liquid line sizes (where applicable), but only with larger suction line size
(where applicable)
DNU Do Not Use (pressure drop exceeds available subcooling in this model)
NR Not Recommended (use smaller liquid tube size)
SI Metric units of measure
EN English units of measure (I---P)
NOTE: For applications with equivalent length greater than 57 m (188 ft) and/or linear length greater than 38 m (125 ft),
contact your local Carrier representative.
38AU