Carrier CDII-184R1-0CTR4 Installation & Operation Manual page 23

Indoor & Outdoor Units are connected by Discharge & Liquid Line Piping. Special Attention is
required to insulate DISCHARGE LINE whose temperature remain 80-100 deg. It is mandatory
to cover the piping with sheet metal duct frame or with some material which can withstand
temperature up to 200degC.
Do not run any Wiring with Discharge or Liquid line. Discharge line temperature can damage
main wiring.
Refrigerant factory charge, additional refrigerant charge amount in field, Oil charge amount from
factory, pipe sizes and maximum allowable pipe length are as mentioned below.
Suctio
Liquid
Model n
(inch)
(inch)
3/8" 3/4"
7 HP
1/2"
11 HP 1-1/8"
5/8"
14 HP 1-1/8"
1/2"
22 HP 1-1/8"
Copper Tube
(Outer Diameter)
(inch)
Model Liquid
3/8"
7 HP
1/2"
11 HP
5/8"
14 HP
1/2"
22 HP
REFRIGERENT CHARGE (R-410A)/Each CDU
Standard
Standard
charge
pipe
Amount
length
(gram)
metre
(Factory)
7.5 4100
7.5 5900
7.5 6400
7.5 5900
Minimum
Pipe
thickness
(mm)
Liquid &
Suction
Suction
3/4"
1.00
1-1/8" 1.00
1-1/8" 1.00
1-1/8" 1.00
Oil
Maximum
charge amount
Pipe
(ml)
Length
FV 50S
(metre)
(Factory)
400
600
0
600
Thermal Insulation
(Internal Diameter)
(inch) (mm)
Thickness
Liquid
(min)
3/8" 0.40" (10mm)
1/2" 0.40" (10mm)
5/8" 0.40" (10mm)
1/2" 0.40" (10mm)
23
Maximum Additional
Pipe Refrigerant
Vertical Charge > 7.5mts
Length (grams / metre)
(metre)
50 15
50 15
50 15
50 15
Thickness
Suction
(min)
3/4" 0.80" (20mm)
0.80" (20mm)
1-1/8"
0.80" (20mm)
1-1/8"
0.80" (20mm)
1-1/8"
(Field)
49
75
121
75