Micro-Air ASY-352-X04 EasyTouch RV 352C Touchscreen Thermostat With Bluetooth - White

Installing the thermostat

The EasyTouch 352 model thermostats were designed to directly replace Coleman™, Airxcel™ and RVP™ single zone DC thermostats. The thermostats can be used in other applications with certain electrical limitations as explained later in this document.

There are three steps to installing the thermostat. First remove your old thermostat. Next disconnect and reconnect the wiring. Finally install the mounting pins to the wall and mount your new thermostat.

Removing the old thermostat

The larger Airxcel thermostats (approximately 5.5 inches wide by 3.75 inches tall) have a front cover that pops off. Behind the cover there are 2-4 mounting screws that must be removed. Once the thermostat is removed, pull out some of the wire from the wall and take a picture of the thermostat wiring connections to the original thermostat.

The smaller three button thermostats are mounted on a button mount similar to the EasyTouch RV mount. Slide the thermostat up and pull away from the wall to remove this thermostat. Once the thermostat is removed, take a picture if the wiring order so it can be duplicated on the new thermostat.

Using the push button terminals

Figure 1 shows a screwdriver depressing the push button connector. The silver gate is opened for the wire to be inserted. Releasing the button traps the wire and makes the connection.

Remove approximately 3/8 inch (1cm) of insulation from the wire to be inserted. Use a small screw driver (not provided) or similar tool to push down on the square push button. Insert the wire in the insertion space and release the push button. Verify the connection by gently pulling on the wire. Do not force excessive wire down into the connector. If the stripped wire end is longer than 3/8 inch, cut the end so there is no bare wire sticking out when properly inserted.

Figure 1 - Push Button Connector

Wiring the thermostat

Original thermostats can have a plug-in connector, push button connector block, or be direct wired to the RV manufacturers wiring. All EasyTouch versions of the 352 thermostats have the push button connector block. 352C models (X03 and X04 extensions) have a connector pre-wired to the connector block for those models that come with connectors.

The tables in each section below list the RVP/Airxcel/Coleman thermostat model numbers that can be used with each thermostat installation type. If your thermostat is not listed, please contact Micro-Air https://www.micro-air.com/SupportRequest to verify the thermostat you received is correct for your application. Coleman model numbers can be found in your original user's manual and on the back side of the thermostat or the back of the mounting plate.

Connector models

These models are the easiest to install. Just disconnect the connector from the wiring harness on the original thermostat and plug in the new thermostat. Connectors are keyed so you cannot mix the connectors.

Push button wire insert models

9430*337* 9430*338* 9430*342* 9430*351* 3430*351* 9430*353*
9430*356* 9630*335* 9630*336* 9630*351* 9630*353*

Note: If you purchase a connector model and find there is no connector, simple remove the wires using the push terminals.

These thermostats connect using push terminals on the back of the thermostat. Examine the original thermostat and notice the labels printed are printed as shown in figure 2. These labels correspond to the same labels on the EasyTouch thermostat. It is recommended to remove DC power when moving the wires from one thermostat to the other. Touching some wires together can trip a breaker or burn a fuse in the RV DC power circuit powering the thermostat. We also recommend taking a picture of the original thermostat wiring order so you can verify the connection order on the new thermostat.

Figure 2 - Terminal Labels

Direct wired models

7330*332* 7330*335* 7330*336* 7330*385* 7330*786*
8330*336* 8330*338* 8330*386* 8330*387* 8350*336* 8530*345*
8530*348* 8530*349* 8550*335* 9330*378* 9330*380* 9330*382*
9530*380*

Note: If you purchase a connector model and find there is no connector, simple remove the wires using the push terminals.

Direct wired models have wires coming out of the back of the thermostat that are connected to the manufacturers wiring harness using a crimp splice. The colors on the RV manufacturers harness can vary but the wires connected to the thermostat are always the same as shown in the chart below.

Follow the thermostat wires to where they are crimp spliced to the RV wire harness. Write in the RV wiring harness colors in the chart below before making connections. Some thermostats and harnesses may not have all of the wires shown.

Note: The sensor wires (green with white stripe) may be connected either way as long as one wire is connected to each of the SEN terminals.