Field Settings SiBE041434E113 Trial Operation and Field Settings4.3 Facility Setting (cooling at low outdoor temperature)Outline This function is limited only for facilities (the target of air conditioning is equipment (such ascomputer)). Never use it in a residence or office (the space where there is a human).Detail You can expand the operation range to –15°C by cutting the jumper on the outdoor unit PCB.Note that the operation may stop if the outdoor temperature drops below –15°C. If the outdoortemperature rises, the operation starts again. 20/25/35 classMain PCB 42/50 classCaution Replace the PCB if you accidentally cut a wrong jumper.Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any ofthem.Caution 1. If the outdoor unit is installed where the outdoor heat exchanger of the unit is exposed todirect wind, provide a windbreak wall.2. Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on andoff when using facility settings.3. Do not place humidifiers or other items which might raise the humidity in rooms where facilitysettings are being used.A humidifier might cause dew condensation from the indoor unit outlet vent.4. Cutting the jumper sets the indoor fan tap to the highest position.S70S40S2S90J5J4J3(R18253)Cut the jumper J4.Cut the jumper J6.(R21209)
