Panasonic S-12MU1U6 Operating Instructions Manual

Also see for S-07MD1U6: Service manual Installation instructions Installation instructions Installation instructions Service manual

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Panasonic S-12MU1U6 Operating Instructions Manual Manual pdf 9 page image

9ADJUSTING AIRFLOW DIRECTION FOR MULTIPLEINDOOR UNITS USING SINGLE REMOTE CONTROLLER(WIRED)SPECIAL REMARKS• The airflow direction cannot be set using the remote controller for the duct type (F1, M1,E1), and floor standing type (P1, R1).• If multiple indoor units are connected to a remote controller, the airflow direction can be set foreach indoor unit by selecting the indoor units (see the operation below).Auto Flap ( ) button • To set the airflow for individual units, press the UNIT button. Display shows the indoor unitnumber under group control. Set the airflow direction for the indoor unit that is shown on thedisplay.• Each time UNIT is pressed, the indicator changes in the order shown below.• When nothing is displayed, you can make the setting for all indoor units in one operation.• The unit number is displayed as Outdoor Unit Number–Indoor Unit Number. It variesdepending on the number of units under group control.One outdoor unit and eight indoor units Two outdoor units and four indoor unitsHow it works • Once the room temperature reaches the level that was set, the unit repeats the cycle ofturning on and off automatically.• In order to prevent the humidity in the room from rising again, the indoor fan also turns offwhen the unit stops operating.• The fan speed is set to ‘‘LO.’’ automatically, and cannot be adjusted.• ‘‘DRY’’ operation is not possible if the outdoor temperature is 59°F or less.Heating performance • Because this appliance heats a room by utilizing the heat of the outside air (heat pumpsystem), the heating efficiency will fall off when the outdoor temperature is very low. Ifsufficient heat cannot be obtained with this heat pump, use another heating appliance inconjunction with this unit.Defrosting • When the outdoor temperature is low, frost or ice may form on the outdoor heat exchangercoil, reducing the heating performance. When this happens, a microcomputer-controlleddefrosting system operates. At the same time, the fan on the indoor unit stops (or runs atvery low speed in some cases) and the ‘‘STANDBY’’ indicator appears on the display untildefrosting is completed. Heating operation then restarts after several minutes. (This intervalwill vary slightly depending upon the outdoor temperature and the way in which frost forms.)Standby lamp on thedisplay• For several minutes after the start of heating operation, the indoor fan will not start running(or it will run at very low speed in some cases) until the indoor heat exchanger coil haswarmed up sufficiently. This is because a cold draft prevention system is operating. Duringthis period, the Standby lamp indicator remains displayed.• Standby lamp remains displayed during defrosting or when the compressor has beenturned off (or when the unit is running at very low speed) by the thermostat when thesystem is in the heating mode.• Upon completion of defrosting and when the compressor is turned on again, Standby lampwill turn off automatically as heating operation resumes.Should the power fail while the unit is runningIf the power supply for this unit is temporarily cut off, the unit will automatically resumeoperation (once the power is restored) using the same settings before the power was cut off.No display Unit No.1–1Unit No.1–2Unit No.1–3Unit No.1–8NodisplayUnitNo.1–1UnitNo.1–2UnitNo.1–3UnitNo.2–4UnitNo.1–4UnitNo.2–1‘‘DRY’’ OperationHeating OperationNOTE162011_VRF_EN.fm Page 9 Friday, September 30, 2011 9:27 AM