Tubing Size - Sanyo 85464359982001 Installation Instructions Manual

07-007 W-2WAY_II_NA 1/23/07

1-6. Tubing Size

Table 1-9 Main Tubing Size (LA)
BTU/h
(kW)
Total system horsepower
Combined outdoor units
Gas tubing
Liquid tubing
*1: If future extension is planned, select the tubing diameter based on the total horsepower after extension.
However extension is not possible if the resulting tubing size is two ranks higher.
*2: The balance tube (outdoor unit tube) diameter is ø1/4".
*3: Type 1 tubing should be used for the refrigerant tubes.
*4: If the length of the longest tube (L1) exceeds 295 ft. (equivalent length), increase the main tube (LM) size by 1 rank for the gas
and liquid tubes. (Use field-supply reducers.) (Select from Table 1-9 and Table 1-14.)
*5: If the longest main tube length (LM) exceeds 164 ft., increase the main tube size at the portion before 164 ft. by 1 rank for the
gas tubes.
(For the portion that exceeds 164 ft., set based on the main tube sizes (LA) listed in the table above.)
I Size of tubing (LO) between outdoor units
Select the size of tubing between outdoor units based on the main tubing size (LA) as given in the table above.
Table 1-10 Main Tubing Size After Distribution (LB, LC...)
Below BTU/h
Total capacity
after distribution
Over BTU/h
Gas tubing
Tubing size
Liquid tubing
Note: In case the total capacity of connected indoor units exceeds the total capacity of the outdoor units, select the main tubing
size for the total capacity of the outdoor units. (Especially the main tubing segments of LA, LB and LF.)
Table 1-11 Outdoor Unit Tubing Connection Size
BTU/h
(kW)
Gas tubing
ø3/8" (ø9.52)
Liquid tubing
Balance tubing
Table 1-12 Indoor Unit Tubing Connection Size
Indoor unit type
Gas tubing
Liquid tubing
Note: Use C1220T-1/2H material for tubing over ø3/4" (ø22.22).
6:09 PM Page 12
95,500 153,600 191,100
(28.0) (45.0) (56.0)
10 16 20
10
10 16
10
ø7/8" ø1-1/8"
(ø22.22) (ø28.58)
ø3/8" ø1/2" ø5/8"
(ø9.52) (ø12.7) (ø15.88)
24,200 54,600
(2.5 hp) (6 hp)
24,200
–
(2.5 hp)
ø1/2" ø5/8"
(ø12.7) (ø15.88) (ø19.05)
ø3/8" ø3/8"
(ø9.52) (ø9.52)
(
95,500 153,600
(28.0) (45.0)
ø7/8" ø1-1/8"
(ø22.22) (ø28.58)
Brazing connection
ø1/2" (ø12.7)
Flare connection
ø1/4" (ø6.35)
Flare connection
Unit: in. (mm)
7 9 12 18
ø1/2" (ø12.7)
ø1/4" (ø6.35)
Unit: in. (mm)
249,100 307,100
(73.0) (90.0)
26 32
16 16
10 16
ø1-1/4"
(ø31.75)
ø3/4"
(ø19.05)
76,800 102,400 143,300 178,800
(15 hp) (19 hp)
(8.1 hp) (11 hp)
54,600 76,800 102,400 143,300
(6 hp) (8.1 hp) (11 hp) (15 hp)
ø3/4" ø7/8" ø1" ø1-1/8"
(ø22.22) (ø25.4) (ø28.58)
ø3/8" ø3/8" ø1/2"
(ø9.52) (ø9.52) (ø12.7) (ø12.7)
– )
A C
Balance tube
Unit: in. (mm)
24 36 48
ø5/8" (ø15.88)
ø3/8" (ø9.52)
12
Unit: in. (mm)
hp = horsepower
238,900 334,400
(25 hp) (35 hp)
178,800 238,900 334,400
(19 hp) (25 hp) (35 hp)
ø1-1/8" ø1-1/4" ø1-1/2"
(ø28.58) (ø31.75) (ø38.1)
ø1/2" ø5/8" ø3/4" ø3/4"
(ø15.88) (ø19.05) (ø19.05)
Gas tube
Liquid tube
–