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.REFRIGERANT PIPING WORK (2/5)
0-3
PIPING PROTECTIO N)
• Prevent contamination or moisture from getting into the piping.
)
<Please refer to installation manual of indoor
.
unit about indoor unit's refrigerant piping>
• Pay special attention when running the copper piping through the through-hole or when leading the edge of the piping
outside the room.
• Refrigerant piping must be protected from physical damage. Install a plastic cover or equivalent.
Location
WORK PERIOD
PROTECTION METHOD
Location
WORK PERIOD
One month or more
Pinching
Outdoor
Indoor
N/A
Less than one month Pinching or taping
(�5-_4_R_E_F_R _IG _E_R_A_NT_P _IP _IN_G_S_I_ZE_A_ND_A_LL_O_W_ A_B_ L_E_ P_IP_I_NG_L _EN_G_T_H __ �)
I
CAUTION
I
PROTECTION METHOD
Pinching or taping
This unit is chargeless specification. Due to chargeless length and allowable piping length will be different
depend on field pipe size.
Piping bend radius
(Units: mm)
Piping diameter
Pipe thickness
Bend radius
(material)
09.5mm
0.8 mm (C1220T-O, Type 0) 30mm or more
015.9mm
1.0 mm (C1220T-O, Type 0) 50mm or more
Refrigerant pipe size and chargeless length
Outdoor unit type
Liquid pipe size
Charge less
(type)
length
RZA125AV16
0 9.5mm x t 0.8 mm
RZA140AV16
(type 0)
30m
• One way maximum allowable piping length means the maximum length of liquid side piping or gas side piping.
• Equivalent length is the pressure loss due to L joints, traps, and so on along the refrigerant piping converted to
a straight piping length of the same size and added to the overall value.
Please see the Engineering Data for calculation of equivalent length.
• Please give the vertical interval between the indoor and outdoor as 20m or less.
I
Pair Connection
I
Refrigerant piping size and one way maximum allowable piping length.
Outdoor unit type
Liquid pipe size
Maximum allowable piping
Gas pipe
(type)
length (It is equivalent length
size (type)
in the inside)
RZA125AV1
6
0 9.5mm x t 0.8 mm
0 15.9mm x t 1.0 mn
(type 0)
50m (70m)
(type 0)
,Lh.
WARNING
• When flared joints are reused, the flared part shall be re-fabricated.
,Lh.
CAUTION
• Use dedicated piping cutters and flaring tools for R41 OA or R32.
• When making a flare connection, apply ether or ester oil only to the flare inner surface.
Maximum allowable piping
length (It is equivalent length
in the inside)
50m (70m)
• Use only the flare nuts attached to the unit. If other flare nuts are used, it may cause refrigerant leakage.
• To prevent contamination, dust or moisture from getting into the piping, take measures such as pinching or
taping the pipings.
28
RZA140AV16
REFERIGERANT PIPING SIZA AND ALLOWABLE PIPING LENGTH
Summary of Contents for FDMA125AV16
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