Daikin RX50G3V1B [11/14] Caution
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Daikin RX50G3V1B [11/14] Caution

Daikin RX50G3V1B [11/14] Caution
9 ■English
Facility Setting
(cooling at low outdoor temperature)
This function is designed for facilities such as equipment or computer rooms. It is never to be used in a
residence or office where people occupy the space.
■ Cutting jumper 6 (J6)
on the circuit board will expand the operation range down to –10°C. However it will stop if the outdoor
temperature drops below –18°C and start back up once the temperature rises again.
1) Remove the 3 screws on the side and remove the top plate of the outdoor unit.
2) Remove the drip proof cover.
3) Cut the jumper (J6) of the PCB inside.
CAUTION
• If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct wind, provide a windbreak wall.
• Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and off when using facility settings.
• Do not place humidifiers or other items which might raise the humidity in rooms where facility settings are being used.
A humidifier might cause dew condensation from the indoor unit outlet vent.
• Cutting jumper 6 (J6) sets the indoor fan tap to the highest position. Notify the user about this.
Wiring
WARNING
• Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating, electrical
shock, or fire.
• Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the
terminal block.) Doing so may cause electric shock or fire.
• Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling harmonics in order to
prevent malfunctioning of the earth leak detector itself.)
• Use an all-pole disconnection type breaker with at least 3mm between the contact point gaps.
• Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.
• Do not turn on the safety breaker until all work is completed.
1) Strip the insulation from the wire (20mm).
2) Connect the inter-unit wire between the indoor
and outdoor units so that the terminal
numbers match. Tighten the terminal screws
securely. We recommend a flathead
screwdriver be used to tighten the screws.
J7
J8
J6
J5
GND
Top plate
PCB
1) Remove the
3 screws.
2) Remove the drip
proof cover.
3) Cut jumper J6.
Drip proof cover
1
2
3
123
LN
Safety
breaker
20A
Earth leakage
circuit breaker
Earth
Inter-unit wire
4-core 1.5mm² or more
H05RN
Firmly fix the wires with
the terminal screws.
Outdoor unit
Indoor
unit
Power
supply
50Hz 220-240V
Firmly fix the wires with
the terminal screws.
Power supply wire
3-core 2.5mm² or more
H05RN
01_EN_3P254362-9K.fm Page 9 Tuesday, October 30, 2012 7:31 PM

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