EQUATION EQ3-9K Manuel D'installation page 130

Installation Procedure - Piping Connection
1 - Piping size
S-AC-7-OUT
FR
S-AC-8-OUT
S-AC-11-OUT
S-AC-9-OUT
ES
S-AC-10-OUT
PT
IT • Cut pipe
EL
2 - Connection of pipes
• To bend a pipe, give the roundness as large as possible not to crush the pipe and the bending radius should be 30 to 40 mm or longer.
• Connecting the pipe of gas side first makes working easier.
PL
• The connection pipe is specialized for R32.
RU
Half union
KZ
UA
Spanner
RO
CAUTION
EN
The standard pipe length is Cm. If it is over D m, the function of the unit will be affected. If the pipe has to be lengthened,
the refrigerant should be charged, according to E g/m. But the charge of refrigerant must be conducted by professional
air conditioner engineer. Before adding additional refrigerant, perform air purging from the retrigerant pipes and indoor
unit using a vacuum pump,then charge additional refrigerant.
Outdoor unit
B1
• Max. Elevation : Amax
• In case the elevation A is more than 5m, oil trap shoud be installed
every 5-7m
• Max. Length: Bmax
• Min. Length: Bmin
• In case the pipe length B is more than Dm, the refrigerant should be
charged, according to E g/m.
130
EQ3-9K
Liquid pipe
EQ3-12K
Gas pipe
EQ3-9+12K
Liquid pipe
EQ3-18K
EQ3-24K
Gas pipe
• Remove burs • Insert the flare nut
Flare nut
Torque wrench
Be careful that matters, such as wastes of sands, water, etc. shall not enter the pipe.
B
A
Indoor
unit
B
A
B1
A1
B2
A1
A2
A2
B2
∅ 6.35 × 0.65 mm
∅ 9.62 × 0.65 mm
∅ 6.35 × 0.65 mm
• Install the removed flare nuts to the pipes to be
∅ 12.7 × 0.7 mm
Correct
• Flare pipe
Forced fastening without careful centering may damage
the threads and cause a leakage of gas.
Pipe Diameter (Ø)
Liquid side 6,35 mm (1/4 ")
Liquid/Gas side 9,52 mm (3/8 ")
Gas side 12,7mm (1/2 ")
Gas side 15,88mm (5/8 ")
B
A
Outdoor unit
B
Indoor
unit
A
B1
A3
S-AC-7-OUT
S-AC-8-OUT
B2
S-AC-9-OUT
S-AC-10-OUT
connected, then flare the pipes.
Incorrect
B
A
Fastening torque
B
B1
A1
B2
A
A2
Outdoor unit
B
A
B
Model Amax Bmax Bmin
EQ3-9K
10 15
EQ3-12K
10 15
EQ3-18K
15 25
EQ3-24K
15 25
B
A
18 Nm
42 Nm
55 Nm
60 Nm
B1
A1
A2
B2
Oil trap
Indoor
unit
C D E
3 5 5 20
3 5 5 20
3 5 7 20
3 5 7 20