Trane EDAB 1106A, Техническое руководство

Страница: 25 / 72

25 PKG-SVX19B-E4
Conforming to the Standards EN 14276-1 and EN 14276-2 the minimum recommended thickness for the gas supply pipe
where bends are made for the air cooled units with R410A refrigerant, must be equal to the values present in the attached
table below. The value `R’ refers to the minimum allowed radius of the bend.
External diameter Radius of the bend Thickness
De (mm) r [mm] t [mm]
28 100 1,2
22 66 1
18 27 1
16 26 1
12 20 1
EXAMPLE -Discharge line sizing
Conditioner selected: EDAB 2107A
Cooling capacity per circuit: 24 Kw
Discharge line: vertical
Discharge equivalent length: 20 m
1) Graphic 2:
Operating at 100% (2 compressors - cooling capacity =
24KW):
possible diameters:
20mm DP/L= 1,5 Kpa/m
18mm DP/L= 2,2 Kpa/m
16mm DP/L= 4,1 Kpa/m
14mm DP/L= 8,8 Kpa/m
Operating at 50% (1 compressor - cooling capacity = 12 KW):
possible diameters:
16mm DP/L= 2,1 Kpa/m
14mm DP/L= 3,0 Kpa/m
2) Graphic 3:
Operating at 100% (2 compressors)
Pipe size 16mm DP/L= 4,1 Kpa/m Acceptable
Pipe size 14mm DP/L= 8,8 Kpa/m Acceptable
Raccomanded sizes are both 14 mm or 16 mm.
C ooling capacity/circuit at
partial load operation (50)%
C ooling capacity/circuit at
full load operation (100)%
E quivalent length
No
C hart 3
P ipe s izing
T ype of line
C hart 2
Vertical line
C hart1
Horizontal line
C ooling capacity/circuit at
full load operation (100)%
DP /L (100%)
Allowed diameters
T andem unit
Allowed diameters
Not allowed diameter
Ideal diameter
Allowed diameter but no recomended
Acceptable
Ideal
Unacceptable
Yes
Pipe sizing
Vertical line
Chart 2 Chart 1
DP/L (100%)
Allowed diameters
Cooling capacity/circuit at
full load operation (100)%
Cooling capacity/circuit at
full load operation (100)%
Cooling capacity/circuit at
partial load operation (50)%
Allowed diameters
Equivalent length
Not allowed diameter
Ideal diameter
Diameter not allowed
Acceptable
Unacceptable
No
Ideal
Yes
Horizontal line
Type of line
Tandem unit
Chart 3
De
r
t
De
r
t