Installation Guide for MICRO AIR models including: ASY-364, ASY-368, EasyStart Home AC Wiring
Safety and Warnings. • Turn off all power to the air conditioning system before proceeding. • Read all instructions before starting installation.
Step 3: Identify the capacitor terminals. Three terminal run capacitors. HERM. FAN. C. Many compressors have these three terminal group capacitors.
Micro-Air ASY-368-X72-BLUE - Inverter Supply
EasyStart Home AC Wiring Using Micro-Air ASY-364 or ASY-368 Contents Safety and Warnings ..................................................................................................................................... 1 Installing EasyStart ........................................................................................................................................ 2 Step 1: Identify the components .............................................................................................................. 2 Step 2: Mounting the unit......................................................................................................................... 2 Step 3: Identify the capacitor terminals ................................................................................................... 3 Three terminal run capacitors............................................................................................................... 3 Two terminal run capacitors ................................................................................................................. 3 Step 4: Removing start devices................................................................................................................. 4 Step 5: Connecting the ORANGE wire....................................................................................................... 4 Step 6: Connecting the BROWN wire........................................................................................................ 5 Step 7: Connecting the WHITE wire.......................................................................................................... 5 Step 8: Connecting the BLACK wire .......................................................................................................... 6 Step 9: Learning ........................................................................................................................................ 6 Compressor monitoring system changes...................................................................................................... 7 Maintenance ................................................................................................................................................. 7 Additional Resources .................................................................................................................................... 7 Safety and Warnings · Turn off all power to the air conditioning system before proceeding. · Read all instructions before starting installation. · AC Power can be dangerous or lethal if the proper safeguards are not understood or performed. · If you are not sure of any aspect of this installation or proper safety when working with AC line voltages, please seek installation by a qualified HVAC or electrical professional. · Capacitors can store a charge and should be discharged by touching both terminals simultaneously with an insulated screw driver. Three terminal caps should use the "C" terminal to short each of the other two terminals. ©2020 Micro-Air corp. 1 rev. 1.04 Installing EasyStart Step 1: Identify the components Run capacitor Contactor The two components shown in the image above will be used to connect your EasyStart. Locate these components in your air conditioner before proceeding. Some compressors will have additional components and may have a circuit board as well. Power comes in from the bottom of the contactor usually from a breaker or fuse panel on the dwelling. This must be disconnected (Turn the breaker off) before connecting EasyStart. Step 2: Mounting the unit EasyStart can be mounted on any flat surface in either a horizontal or vertical position. It can also be mounted with the clear cover pointing up. The wire entry must face down when EasyStart is mounted vertically. ©2020 Micro-Air corp. 2 rev. 1.04 Step 3: Identify the capacitor terminals Three terminal run capacitors HERM FAN C Many compressors have these three terminal group capacitors. These capacitors feature labels on the top as indicated by the arrows above. Use the labels on these capacitors to identify where to make connections. Two terminal run capacitors Wire to contactor and capacitor Two terminal group caps are harder to identify the terminals because they are not labeled. Look for a wire that connects the contactor to the capacitor like the red one shown in this image. This wire is connected to the "C" terminal and will be left in place. The other unmarked terminal is the HERM terminal. For the remainder of this document, we will refer to the HERM terminal and C terminal for this type of capacitor. ©2020 Micro-Air corp. 3 rev. 1.04 Step 4: Removing start devices HERM terminal group There is only a single yellow wire connected to the HERM terminal in the above picture. Compressors with only one wire on the HERM terminal have no start components and can go on to the next step. If you find there is a second wire on this group, you will need to identify which of these wires goes to the start device and which one goes to the compressor. One wire will always go to the compressor which you can verify using your factory wiring diagram. The other can go to a relay, a second capacitor called a start capacitor or a PTC device which is a small disk. Remove the second wire from the herm terminal that does not go to the compressor. Disconnect both ends or if you have a PTC or hard start, just remove the entire device. Step 5: Connecting the ORANGE wire Connect the EasyStart ORANGE wire to the HERM terminal. ©2020 Micro-Air corp. 4 rev. 1.04 Step 6: Connecting the BROWN wire Follow the wire that connects the C terminal on the run capacitor to the contactor. Disconnect the compressor "R" terminal wire located on the same side of the contactor. This wire is often a heavy gauge wire connected to the screw part of the contactor. It may also be on a quick connect as shown here. Connect the disconnected wire to the BROWN wire from EasyStart. Connect only these two wires together and not to anything else. Step 7: Connecting the WHITE wire Connect the EasyStart WHITE wire to the contactor where the wire was removed from in the last step. ©2020 Micro-Air corp. 5 rev. 1.04 Step 8: Connecting the BLACK wire Contactors are "split" into two electrically separate halves with each half connected to a single voltage line of the incoming service. The red wires are both connected to one side of the contactor in the picture below and the black wires are connected on the other side of the contactor. The wire colors may be different in your installation. Connect the BLACK EasyStart wire to the side of the contactor where the EasyStart WHITE wire is NOT connected using an available connection point. Connect here Step 9: Learning Start the air conditioner on AC mains power. The fan will come on followed shortly after by the compressor. EasyStart is now installed. The compressor can be cycled normally to complete the learning process. If you are going to test on a generator or alternate power source, be sure the compressor has started five times before starting on a generator or other power source. ©2020 Micro-Air corp. 6 rev. 1.04 Compressor monitoring system changes (EasyStart models without Bluetooth) Some systems have monitoring circuit that verifies the compressor is running and provides feedback, like a lights or fault indication, when the compressor fails to start. Sometimes the EasyStart internal short cycle timer can interfere with this monitoring and prevent the compressor from starting. If you find your system has this feature and experience trouble, there is one more step for installation. First place the shorting jumpers from the six-pin header on pins 1 and 3, and pins 4 and 6 as shown below. The next step is to cut JMP2 on the circuit board. This will disable the timer and start the compressor immediately. Your circuit board may look a little different from the image but the process is the same on all boards. Maintenance The box and entry are water tight and can withstand normal rain events. The box should not be pressure washed since it is not rated for high power water jet cleaning. It can be washed with a mild soap and water solution. Additional Resources For additional information on EasyStart, troubleshooting or assistance, please visit our website at www.Microair.net . ©2020 Micro-Air corp. 7 rev. 1.04Microsoft Word 2016