Carrier 38QUS009DS Owner's Manual

Also see for 38QUS009DS: Owner's manual Installation manual Service manual Installation manual Installation manual

Contents

72GB-52. OPEATION2.2 HOW IT WORKSIn this setting the system will automatically change modes and fan speed to the set temperature.[In spring and autumn, closer temperature control may require COOL/HEAT mode changes.]In this mode, priority is given to dehumidifying the air. Low fan speed and compressor cycling is used toachieve this and regulate room temperature.AUTO ModeDRY ModeBasic Operation Modes AUTO / COOL / DRY / HEAT / FANAt start-up, a time delay of 3 to 4 minutes protects the compressor.Compressor DelayTo avoid uncomfortable drafts in heating mode, the indoor unit is preheated before the fan starts. This delayshould only last a few minutes.Cold Draft PreventionIce develops on the outdoor unit in heating mode. To defrost this ice, the indoor fan stops for a few minutesbefore heating continues.Auto DefrostThe unit will automatically restart after a power interruption. Previous user settings are all recovered.Auto Restart*When refrigerant leakage is detected, the unit will display “EC” code or flash LEDs.Auto Leak Detection*2.3 HINTS FOR ECONOMICAL OPERATIONAdjust the temperature to achieve moderate comfort levels. Excessively low orhigh temperatures waste energy.Improve performance by keeping windows and doors closed.Limit energy usage [run time] by using the TIMER function.Do not block air inlets or outlets. Poor performance, increased running costsand reduced product life will result.Inspect the air filters periodically, and clean them when needed.Disconnect the power source if unit will not be used for a long period.[*] Model dependent