Haier HSU09VHG(DB)-W Service Manual

Also see for 1U09ES2VHA: Installation manual

Contents

INDOOR UNIT CONTROLS & COMPONENTSPAGE 17ENGLISHStepper Motor LouverFan MotorEmergency ButtonThe Indoor Fan Motor is a variable speed motor. Themotor will vary speed with the speed of the compressorinverter. The speed can also be set at the remote controlor automatically adjusted using the AUTO fan mode. Whenin AUTO fan mode, the speed of the fan is calculated usingthe indoor set temperature and the indoor room ambienttemperature. (Outdoor air temperature in heat mode.)The Fan Motor is connected to the indoor control board viaPLUG CN-9.If the remote control is non-functional, the EmergencyButton can be accessed by swinging open the front of the wallunit. The button is located on the right side.Pushing this button will activate AUTO MODE operation.AUTO MODE activated with this button will maintain 75°F.The system will stay in this mode until commands arereceived by the indoor unit communication circuit via theremote control.The STEPPER MOTOR moves the louver up or down, andright or left depending upon selections made at the remotecontrol.The motor is connected to the indoor control board at PLUGCN-11.