Haier AU42NALEAA Service Manual - Page 253

>a__WcU[S^ a`V[e[a`Wc Connecting method 1. Use group controller and weekly timer to realize the group control function + weekly timing function, applicable for the units except for the unit which needs detector to realize the weekly timer function, such as cabinet type, console type. MODE AUTO FAN ONLY COOL DRY HEAT TES FAN AUTO HIGH MED LOW FIX CENTRAL OPERATION STANDBY PRE-HEAT DEFROST FILTER HEALTH UNIT NO. CEN.ADD. SYS.ADD. CHECK DEMAND SWING MANUAL C ROOM TEMP. SET TEMP. F TIMER CLOCK UP DOWN VENTILATION ON OFF AUTO RECOVERY DAILY NORMAL MODE FAN SWING HEALTH TEMP CLOCK TIMER SET RECOVERY CHECK FILTER RESET ON/OFF 123 CN5 123 CN5 OFF OFF OFF OFF OFF OFF OFF MON TUE WED THU FRI SAT SUN ON ON ON ON ON ON ON Haier R Program Holiday Number Hour Cancel MON TUE WED THU FRI SAT SUN Min. Confirm Time Week MODE AUTO FAN ONLY COOL DRY HEAT TES FAN AUTO HIGH MED LOW FIX CENTRAL OPERATION STANDBY PRE-HEAT DEFROST FILTER HEALTH UNIT NO. CEN.ADD. SYS.ADD. CHECK DEMAND SWING MANUAL C ROOM TEMP. SET TEMP. F TIMER CLOCK UP DOWN VENTILATION ON OFF AUTO RECOVERY DAILY NORMAL MODE FAN SWING HEALTH TEMP CLOCK TIMER SET RECOVERY CHECK FILTER RESET ON/OFF 123 CN5 123 CN5 2. Use weekly timer to realize weekly timing function,applicable for the units which need detector to realize the weekly timer function, such as cabinet type, console type. The detector is connected with one air conditioner by the 4-core screw fixed terminals A+ and A- of air conditioner interface, then accordingly set the dial-code switch of the detector in single unit working mode; the address number setting shall be performed according the planned program, for specific setting and corresponding address, please refer to the dial-code switch setting in detector's operation manual; use weekly timer to fulfill weekly timing function, the system needs to be connected with weekly timer; each detector and weekly timer is connected with shielded twisted pair communication bus by the 2-core screw fixed terminals (A and B) of its RS-485 interface; the communication bus must be shielded and grounded, and the resistors in its two ends shall be suited. Power cord View of the detector interface Resetting Power on/off Indoor unit Air Conditoner HMI Outdoor unit PROGRAM NO. 1 2 34 5 6 7 SET 1 ON OFF SET 2 ON OFF 1 2 34 5 6 7 NO. Program Holiday Number Hour Cancel Min. Confirm Time Week ON/OFF 3. Use weekly timer to realize two units auto-changeover function,applicable for the units which need detector to realize the weekly timer function, such as cabinet type, console type. The detector is connected with two same model air conditioners by the 4-core screw fixed terminals of air conditioner interface; then accordingly set the dial-code switch of the detector in double units working mode, and the double units switch time is default 24 hours; the address number setting shall be performed according the planned program, for specific setting and corresponding address, please refer to the dial-code switch setting in detector's operation manual; use weekly timer to fulfill double units switch weekly timing function, the system needs to be connected with weekly timer; each detector and weekly timer is connected with shielded twisted pair communication bus by the 2-core screw fixed terminals (A and B) of its RS-485 interface; the communication bus must be shielded and grounded, and the resistors in its two ends shall be suited.