Idiomas disponibles
Idiomas disponibles
„ Airtight test/Air purge, etc.
For airtight test, air purge, addition of refrigerant, and gas leak check, follow the Installation Manual attached to
the outdoor unit.
REQUIREMENT
Be sure to use the tool such as charge hose exclusive to R410A.
Do not turn on the power until the airtight test and the vacuuming have finished.
(If turning on the power, the incorporated PMV is closed fully and the period until the vacuuming finishes
elongates.)
„ Open fully valves of the outdoor unit
„ Gas leak check
Check with a leak detector or soap water whether gas leaks or not, from the pipe connecting section.
REQUIREMENT
Use a leak detector manufactured exclusively for HFC refrigerant (R410A, R134a, etc.).
„ Heat insulating process
Perform heat insulating for each pipes
separately.
In cooling time, temperature at both liquid
and gas sides becomes lower.
Therefore, perform heat insulating process
sufficiently to avoid dewing.
• For heat insulator of pipe at gas side, be
sure to use one with heat-resisting temp.
248°F (120°C) or more.
• Using the attached heat insulating pipe,
perform heat insulating process securely
for pipe connecting part of the Flow
Selector units without clearance.
Flow Selector unit
The slit shall be
upper side.
Heat insulator
Heat insulating
pipe (Attached)
REQUIREMENT
• Apply the heat insulation to the pipe connecting section of the Flow Selector unit securely up to the root without
exposure of the pipe. (The pipe exposed to the outside causes water leak.)
• Heat insulating pipe (Locally procured) must comply with applicable codes.
EN-17
01_IM_1143017001-1_EN.indd 9
01_IM_1143017001-1_EN.indd 9
• Indoor unit side
Heat insulating pipe
Heat insulating pipe
(Accessory)
(Accessory)
(Stopper-pipe)
Heat insulating pipe
Heat insulating pipe
(locally procured)
(Accessory)
Binding band
Binding band
(Accessory)
(Accessory)
[Port with the pipe connected.]
[Port without the pipe.]
• Outdoor unit side
Heat insulating pipe
(locally procured)
Binding band
(Accessory)
[Side with the pipe connected.]
9
5
ELECTRICAL CONNECTION
• Consult local building codes, NEC (National Electrical Code) or CEC (Canadian Electrical Code) for special
requirements, that the appliance shall be installed in accordance with national wiring regulations.
• If incorrect / incomplete wiring is carried out, it will cause an electrical fire or smoke.
• Install circuit breaker is not tripped by shock waves. If circuit breaker is not installed, an electric shock may be
caused.
• Use the cord clamps attached to the product.
• Do not damage or scratch the conductive core and inner insulator of power and communication wires when
peeling them.
• Use the power cord and communication wire of specified thickness, type, and protective devices required.
• Do not connect 208 - 230 V power to the terminal blocks (A, B) for communication wiring. (Otherwise, the
system will fail.)
• Perform the electric wiring so that it does not come to contact with the high-temperature part of the pipe.
The coating may melt resulting in an accident.
• Full disconnection under overvoltage category III conditions must be incorporated in the fixed wiring according to
national wiring rules.
REQUIREMENT
• For power supply wiring, strictly conform to the Local Regulation in each country.
• After connecting wires to the terminal blocks, provide a trap and fix wires with the cord clamp.
• Run the refrigerant piping line and communication wiring line in the same line.
• Do not turn on the power of the Flow Selector unit until vacuuming of the refrigerant pipes completes.
• This Flow Selector unit has multiple ports. So piping and wiring to the same indoor unit shall be connected to the
same number (1, 2, 3, 4 ... ) of port.
• Power supply circuit must be protected with safety device in accordance with local and national codes.
• Use insulated wire for the power supply wire.
„ Power supply wire and communication wires specifications
Power supply wire and communication wires are locally procured.
For the power supply specifications, follow to the table below. If capacity is little, it is dangerous because overheat
or burnout may be caused. For system wiring diagram, follow the Installation Manual attached to the outdoor unit.
Power supply
• Power supply wire specification: Cable 3-core AWG12.
Power supply
Power supply switch / circuit breaker or power supply wiring / fuse rating for Flow Selector units should be
selected by the accumulated total current values of the Flow Selector units.
Voltage range
Power supply wiring
Below 164 ft (50 m)
CAUTION
208 - 230 V-1-60 Hz
Min. : 187 V
Max. : 253 V
AWG12
EN-18
24/11/2566 BE 15:06
24/11/2566 BE 15:06
