Refrigerant Piping - Toshiba Carrier RBM-Y0384FUL Manuel Du Propriétaire

5

REFRIGERANT PIPING

If refrigerant gas has leaked during the installation work, ventilate the room immediately.
If the leaked refrigerant gas comes in contact with fire, noxious gas may be generated.
After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source, such as a fan heater, cooking stove or heating
unit, noxious gas may be generated.
Permissible pipe length and permissible height difference
The length of a connection pipe to the indoor unit should be 164' (50 m) or less.
For details, refer to the installation manual attached to the outdoor unit.
REQUIREMENT
When the refrigerant pipe is long, set the support brackets to fix the pipe at intervals of 8.9' to 9.8' (2.5 to 3 m).
If the pipe is not fixed, noise may be generated.
EN-13
WARNING
7
Piping dimensions
They vary depending on the outdoor unit. For details, refer to the Installation Manual attached to the outdoor unit.
Outdoor unit
(1)
Single Indoor unit connection
Outdoor unit
(1)
Multi indoor unit connection
Outdoor unit side pipe size (1)
Flow Selector unit
Total capacity codes of indoor units at the downstream side
(kBTU/h)
Suction gas pipe
Outdoor unit side pipe size (mm) Discharge gas pipe
Liquid pipe
Indoor unit side pipe size (2)
Capacity rank
49 ft (15 m) or less real length
007 to 012
Exceeds 49 ft (15 m) real length
49 ft (15 m) or less real length
015 to 018
Exceeds 49 ft (15 m) real length
021 to 054
072 to 096
Indoor unit side pipe size (3)
Total capacity codes of indoor units
at the downstream side
Below 61
61 to 96 or less
Y-shaped branching joint (4)
Total capacity codes of indoor units
at the downstream side
Below 61
61 to 96 or less
FS unit
(2)
indoor unit
(4) (3) (4) (2)
FS unit
(3)
(2) (2)
RBM- Y0384FUL Y0614FUL
Below 38 38 to below 61 61 to 96 or less
Ø5/8" Ø5/8"
Ø1/2" Ø1/2"
Ø3/8" Ø3/8"
Length of piping Gas side Liquid side
Ø3/8" Ø1/4"
Ø1/2" Ø3/8"
Ø1/2" Ø1/4"
Ø5/8" Ø3/8"
- Ø5/8" Ø3/8"
- Ø7/8" Ø1/2"
Suction gas side Liquid side
Ø5/8" Ø3/8"
Ø7/8" Ø1/2"
Y-shaped branching joint
RBM-BY55UL
RBM-BY105UL
indoor unit
Y0964FUL
Ø7/8"
Ø3/4"
Ø1/2"
EN-14