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Hersteller: Haier Dateigröße: 2.65 mb Dateiname: Unterrichtssprache:

If the refrigerant needs to be removed from a system to correct the charge inside, always use a recovery or recycling device. ! WARNING -To prevent personal injury, wear safety glasses and gloves when handling refrigerant. 10 5 5 The condensing unit rating plate and the tables of "Physical and Electrical Specifications / Outdoor Units" (Table 1) provide pertinent data necessary for the selection of proper size electrical service and over-current protection devices. Table 6 provides data on the minimum copper wire size as a function of supply wire length and circuit ampacity. Copper Wire Size - AWG (1% Voltage Drop) Supply Circuit Ampacity Supply Wire Length - Ft 50 100 150 200 15 14 10 8 6 20 12 8 6 4 25 10 8 6 4 30 10 6 4 4 35 8 6 4 3 40 8 6 4 2 45 6 4 3 2 50 6 4 3 1 Table 6: Minimum Wire Size Based on N.E.C. for 60 C Type Copper Conductors Below 100 Ampacity. The owner should be made familiar with the location of the over-current protection, the proper size for this application and the proper procedure for disconnecting power service to the unit. The condensing unit control wiring requires a 24 Volt minimum, 25 VA service from the indoor transformer as shown on the wiring diagram. 7.SYSTEM STARTUP 1.Turn thermostat to "OFF", turn on power supply at disconnect switch. 2.Turn temperature setting as high as it will go. 3.Turn fan switch to "ON". Indoor blower should run. Be sure it is running in the right direction. 4.Turn fan switch to "AUTO". Turn system switch to "COOL" and turn temperature setting below room temperature. Unit should run in cooling mode. 5.The compressor, indoor blower, and outdoor fan should now be running. Make sure cool air is supplied by the unit. 6.Turn the fan switch to the "Auto" position. The blower should stop 90 seconds later. 7.Turn system switch to "Heat" and fan switch to "Auto" . 8.Slowly raise the heating temperature setting. The compressor, indoor blower and outdoor fan should now be running. 9.If unit operates properly on the heating cycle, raise the heating temperature setting high enough. 10.For thermostats with emergency heat switch return to startup. 12 11.If checking the unit on the heating cycle in the wintertime, when the outdoor coil is cold enough to actuate the defrost control, observe at least one defrost cycle to make sure the unit defrosts properly. 12.Check the refrigerant charge (see Instructions under "Charging the System"). 13.Replace service port caps. Service port cores are for system access only and will leak if not tightly capped. 14.Check unit for tubing and sheet metal rattles. 15.Instruct the owner on operation and maintenance. Leave this "Installation and Operating Manual" and the "Use and Care Manual" with owner. 8.OPERATION Most single phase units are operated without start relay or start capacitor. Such systems should be off for a minimum of 5 minutes before restarting to allow equalization of pressures. The thermostat should not be moved to cycle unit without waiting 5 minutes. To do so may cause the compressor to stop on an automatic open overload device or blow a fuse. Poor electrical service can cause nuisance tripping in overloads or blow fuses. The compressor has an internal overload protector. Under some conditions, it can take up to 2 hours for this overload to reset. Make sure overload has had time to reset before condemning the compressor. 9.MISCELLANEOUS 9.1. Replacement Parts Contact your local distributor for a complete parts list. 9.2. Troubleshooting Guide Refer to the troubleshooting guide (Table 7) included in this manual.(P14) 9.3. Wiring Diagram Refer to the appropriate wiring diagram included in this manual.(P15) Table 7:Troubleshooting Guide ! WARNING - Disconnect all electrical power to the unit before servicing. Disconnect power to both the indoor and outdoor units. NOTE: There may be more than one electrical disconnect switch. Failure to shut off power can cause electrical shock resulting in personal injury or death. 13 Symptom Possible Cause Remedy No cooling/heating Defective four way valve Check the valve coil or replace it Power off or loose electrical connection Incorrect thermostat setting Make sure main switch is ON. Check and tighten all connections. Set thermostat correctly Defective contactor Check for 24V at contactor coil. Open circuit breaker of blown fuses Reset or replace Defective transformer Check wiring - Replace it. Interconnecting low voltage wiring damage Replace thermostat wiringInsufficient Cooling /Heating Dirty filters Clean & replace Indoor air blockage Check supply registers and return grills for blockage. Blocked outdoor coil Clear away leaves and other debris Improperly sized unit Recalculate load Improper airflow Check - should be 400CFM/Ton Incorrect refrigerant charge Charge correctly per instruction. Air, non-condensibles or moisture in system Recover refrigerant, evacuate & recharge, add filter drier Incorrect voltage At compressor terminals, voltage must be within 10% of rating plate vo...

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