Fig1 fig2 3 types of electrical wiring diagrams for air conditioning systems. 3 the g terminal is for the blower fan located in the air handler.
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Hvac wiring diagram. Bard hvac delivering high performance heating and cooling products all over the world. Heat pumps are different than air conditioners because a heat pump uses the process of refrigeration to heat and coolwhile an air conditioner uses the process of refrigeration to only cool the central air conditioner will usually be paired with a gas furnace an electric furnace or some other method of heating. It reveals the components of the circuit as streamlined shapes and the power as well as signal connections between the gadgets. A wiring diagram is a simple graph of the physical connections and also physical design of an electric system or circuit. G wire for fan control how to wire an air conditioning thermostat. It reveals the parts of the circuit as streamlined shapes and the power as well as signal connections between the devices.
Finally this way you can match up the appropriate wire color coming from the thermostat to what it controls in the equipment. Thermostat wiring diagrams for heat pumps heat pump thermostat wire diagrams. 138ck018 32 34 38ckm024 32 34 38ckm030 30 32 38ckm036 and 042 33 34 38ckm048 35 36 208 230v 1 phase 60 hertz a93410 23 5 red or blk red or blk 208230 power supply 10 equip gnd l1 l2 11 21 23 blk blu blu yel yel brn blu blk yel yel h c f ofm brn blk vio blu blk blu blk. In either case it is crucial to find the wiring diagram for the unit. Moreover it is the fan that circulates air throughout the ductwork system. Wiring diagrams for hvac systems and other complicated electrical systems come in two major variations schematic diagrams and ladder diagrams.
Air conditioning unit wiring diagrams fig. White wire for heating system if so equipped 2 the w terminal is for heating including the heating for gas furnaces electric furnaces boiler systems. Usually the electrical wiring diagram of any hvac equipment can be acquired from the manufacturer of this equipment who provides the electrical wiring diagram in the users manual see fig1 or sometimes on the equipment itself see fig2. Additionally the back up heat for heat pumps. A wiring diagram is a simplified standard photographic depiction of an electrical circuit. Hvac condenser wiring diagram valid wiring diagram for ac condenser central air conditioner wiring diagram reference wiring diagram central ac heat pump wiring diagram wire center just what is a wiring diagram.
Variety of hvac wiring diagram pdf. A wiring diagram is a streamlined conventional pictorial representation of an electrical circuit. The red wire should always come from the hot side of the 24 volt transformer. Variety of hvac fan relay wiring diagram. Of the two types of diagrams the ladder types are.
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