ActronAir SCA260C - Page 18

Installation and Commissioning Guide - Standard Commercial Split Ducted Commercial Outdoor Unit
Doc. No.0525-056 Ver. 7 220308
Installation and Commissioning Guide
Split Ducted Outdoor Units
18
Example of Total Equivalent Field Pipe Length Calculations
CAUTION
Illustration shown as calculation examples only. It is
the responsibility of the Installer to design an efficient
refrigeration piping lay out for optimum unit performance.
E
1
OUTDOOR
UNIT
E
2
V
1
H
1
H
2
INDOOR
UNIT
E
3
V
2
H
3
E
4
Equivalent Pipe Length = Total Horizontal Length + Total Vertical Length
+ Total Losses from Elbows
Where:
H = Horizontal Length
V = Vertical Length
E = Elbow Losses
Equivalent Pipe Length = (H
1
+ H
2
+ H
3
) + (V
1
+ V
2
) + (E
1
+ E
2
+ E
3
+ E
4
)
TABLE 2: REFRIGERATION PIPING
Reverse Cycle
(Outdoor / Indoor)
CRA300T/
EVA300S
SCA260C/
SCG260E
SCA290C/
SCG290E
SCA300C/
SCA300E
SCA330C/
SCA330E
SCA330C/
SCG330E
SCA340C/
SCA340E
SCA340C/
SCG340E
SCA400C/
SCG400E
Max. Equivalent Pipe
Length Range (metres)
0 - 60 0 - 60 0 - 60 0 - 60 0 - 60 0 - 60 0 - 60 0 - 60 0 -60
Max. Vertical Height
Differential
(1)
(metres)
20 20 20 20 20 20 20 20 20
Field Pipe Size
Liquid Line - inch (mm) 9.52 (3/8) 15.9 (5/8) 15.9 (5/8) 9.52 (3/8) 15.9 (5/8) 15.9 (5/8) 9.52 (3/8) 9.52 (3/8) 12.7 (1/2)
Gas Line - inch (mm) 19.05 (3/4) 1 (25.4) 28.6 (1-1/8) 19.05 (3/4) 28.6 (1-1/8) 28.6 (1-1/8) 19.05 (3/4) 19.05 (3/4) 22.2 (7/8)
Outdoor Pipe Size
Liquid Line - inch (mm)
9.52 (3/8)
swaged
15.9 (5/8)
swaged
15.9 (5/8)
swaged
9.52 (3/8)
swaged
15.9 (5/8)
swaged
15.9 (5/8)
swaged
9.52 (3/8)
swaged
9.52 (3/8)
swaged
12.7 (1/2)
swaged
Gas Line - inch (mm)
19.05 (3/4)
swaged
28.6 (1-1/8)
ID to fit
field pipe
28.6 (1-1/8)
swaged
19.05 (3/4)
swaged
28.6 (1-1/8)
swaged
28.6 (1-1/8)
swaged
19.05 (3/4)
swaged
19.05 (3/4)
swaged
22.2 (7/8)
swaged
Indoor Pipe Size
Liquid Line - inch (mm)
9.52 (3/8)
swaged
15.9 (5/8)
swaged
15.9 (5/8)
swaged
9.52 (3/8)
swaged
15.9 (5/8)
swaged
15.9 (5/8)
swaged
9.52 (3/8)
swaged
9.52 (3/8)
swaged
12.7 (1/2)
swaged
Gas Line - inch (mm)
22.2 (7/8)
cut-off
swaged
1 (25.4)
swaged
28.6 (1-1/8)
swaged
22.2 (7/8)
cut-off
swaged
28.6 (1-1/8)
swaged
28.6 (1-1/8)
swaged
22.2 (7/8)
cut-off
swaged
22.2 (7/8)
cut-off
swaged
22.2 (7/8)
swaged
Field Pipe Qty. (Liquid / Gas) 2 / 2 1 / 1 1 / 1 2 / 2 1 / 1 1 / 1 2 / 2 2 / 2 2 / 2
(1)
Included in maximum field pipe length.