12
INSTALLATION OF INDOOR, OUTDOOR UNIT
ENGLISH
Distributor type Models
(Unit: m)
• Distributor type Models
Additional charge (g) = (( Total Main piping Length - Main Standard Length ) x 50 g/m
+ (A Room Branch Length – Standard Length ) x 20 g/m
+ (B Room Branch Length – Standard Length ) x 20 g/m
+ (C Room Branch Length – Standard Length ) x 20 g/m +.. )
- CF(Correction Factor) x 100
h
CF = Max. number of connectable indoor unit – Total number of connected indoor unit
Refrigerant charge
The calculation of the additional charge should be taken in account for the length of extra pipe.
Multiple Piping Models(Additional Charge)
• Total main pipe(A+B+C) = 30 m
• Each branch pipe
a = 10 m
b = 8 m
c = 5 m
d = 3 m
e = 10 m
*Additional Charge
=((30-5) x 50 + (10-5) x 20 + (8-5) x 20
+ (5-5) x 20 + (3-5) x 20 + (10-5) x 20)
- (7-5) x 100 = 1270 g
A
Ex) Distributor type Model 1 Ø, 40 kBtu/h
A
B
C
a
b
c
7 k
9 k
9 k
d
e
9 k
18 k
Model
Main Piping length
Branch piping length
Standard length(m)
Additional
refrigerant(g/m)
Standard length(m)
Additional
refrigerant(g/m)
40 k 5 50 5 20
48 k 5 50 5 20
54 k 5 50 5 20
18 k
26 k
30 k
36 k
~30
X
X
X
X
~40
X
X
X
X
~50
X
X
X
X
~60
-
X
X
X
~70
-
200 g*
X
X
~80
-
-
-
X
Total Piping
Length(m)
Model
* : A4UQ28GFA0 only
(X : No addition, - : Not applied)
Summary of Contents for A4UQ28GFA0
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