Easy Touch 354 Manuel utilisateur

EasyTouch

354

Operating Manual

Revision 1.6

2 
©2021 Micro-Air Corp August 27, 2021, revision 1.6 
Contents 
Installing the thermostat ..............................................................................................................................3 
Removing the old thermostat...................................................................................................................3 
Wiring the thermostat ..............................................................................................................................4 
Mounting the thermostat .........................................................................................................................5 
Initial setup instructions ...............................................................................................................................6 
Setting the available modes......................................................................................................................6 
Special model compatibility......................................................................................................................6 
Connecting remotely.................................................................................................................................6 
Operating the thermostat.............................................................................................................................6 
Main screen...............................................................................................................................................6 
Additional items on main screen ..........................................................................................................7 
Away screen (Heat and cool set points)....................................................................................................8 
Schedule screen ........................................................................................................................................9 
Setting a change event..........................................................................................................................9 
12- or 24-hour format...........................................................................................................................9 
Setting the time ....................................................................................................................................9 
Enabling the schedule...........................................................................................................................9 
Settings Screen............................................................................................................................................10 
Gas Heat Override...................................................................................................................................11 
Smart device application only features ......................................................................................................11 
Reset device............................................................................................................................................11 
Calibrate Touchscreen ............................................................................................................................11 
Check for updates ...................................................................................................................................11 
Notifications............................................................................................................................................12 
Appendix A: Installation Troubleshooting ..................................................................................................13 
WIFI Troubleshooting..................................................................................................................................13 
No WIFI Icon............................................................................................................................................13 
Red WIFI Icon ..........................................................................................................................................13 
Appendix B: Connecting remotely ..............................................................................................................14 
First connection steps.............................................................................................................................14 
Adding a control......................................................................................................................................14 
Connecting to a new WIFI network ........................................................................................................14 
Updating the thermostat ........................................................................................................................14 
Appendix C: 8430-331 wiring......................................................................................................................15 
 

The EasyTouch 354 model thermostats were designed to directly replace Coleman™, Airxcel™

and RVP™ ZC thermostats. Original thermostats must have model numbers of 8330-331, 8330-335, or

8430-331 to be replaced by this thermostat. A typical example of this thermostat is shown in figure 1.

Note the single slide switch and mode/zone button specific to this model. If your thermostat is not listed

or as shown, please contact Micro-Air https://www.micro-air.com/SupportRequest to verify the

thermostat you received is correct for your application.

Figure 1

Installing the thermostat

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 original thermostat is held to the wall

with a backing plate that extends about ¼” (6.3mm)

from the wall. There are two slots on the top of the

thermostat as shown in Figure 1. Place a small

screwdriver in the slot and twist the screw driver

while pulling gently out from the thermostat top.

After the first side pops loose, do the same with the second slot. Remove the screws from the mounting

plate and remove the plate and thermostat. Unplug the connector from the RV wiring harness. Note,

some thermostats are directly wired by the manufacturer. See the next section for further details.

Figure 2

Wiring the thermostat

Original thermostats can have a plug-in connector, or could be direct wired to the RV

manufacturers wiring. Thermostats wired with a plug can simply unplug the original plug and plug in the

EasyTouch RV thermostat.

Micro-Air provides a connector to directly wire these thermostats to the wiring if the

manufacturer has directly wired the thermostat. Match the original wiring colors to the provided

EasyTouch connector colors to install the thermostat. See Table 1 for details on the colors used with the

thermostat and the function of the wires.

Note: Some versions of this thermostat come with a connector wired to the EasyTouch circuit board.

Directly wired customers can cut off the connector to access the wires to make connections.

Note: See Appendix C: 8430-331 wiring for a different wiring table when replacing model number 8430-

331.

Table 1

Original

thermostat wire

color

Micro-Air harness

color

Function

Factory harness color

(Provided to write in your

color)

Purple

Signal

White

Heat 1

Orange

Heat 2

Yellow

Heat 3

Green

Heat 4

Blue

Ground in

Blue/White stripe

Ground out

Red

+ 12 VDC in

Red/White stripe

+12 VDC out

Mounting the thermostat

Step 1: Locate the mounting buttons

horizontally across the hole with the smaller

diameter against the wall.

Step 2: Screw in one screw and level the

buttons so the display will be straight when

installed.

Step 3: Screw in second screw making sure the

two buttons remain level.

Step 4: Remove mounting tab before mounting

on the wall.

Step 5: Aligning the buttons with the holes in

the back of the display. Press the display against

the wall and gently slide the display down to

lock it in place.

Initial setup instructions

Setting the available modes

It is necessary to set up the available modes prior to operating your thermostat. Press the

settings button on the main screen. Select the available modes button on the settings

screen. Select cooling, Gas heat, or electric heat by pressing the icon. The red

circle with a line through it will disappear indicating the mode is available. Available modes must match

your original thermostat’s available modes. Use the zone button to set them appropriately for each

available zone.

Special model compatibility

There is text in the available modes screen that reads “Normal” as shipped from Micro-Air.

Pressing this text, changes the operating modes to different options to support specific thermostats.

Option B must be selected when replacing a thermostat with model number 8430-331. Press the

“Normal” text in the available modes screen to change the text to “Option B” when replacing this

thermostat. See Appendix C: 8430-331 wiring for more information on these systems.

Connecting remotely

This thermostat may be operated remotely using either Bluetooth or WIFI. Apps may be loaded

from the Google Play store or Apple App store. The first time the app is opened, it will ask to create an

account. A WIFI connection on your smart device is necessary for this step. Create your account and

follow the prompts to connect your thermostat.

If a second user is going to use the thermostat remotely, they can use the same account and

password as the first user. Each thermostat can only be assigned to a single account.

Operating the thermostat

Main screen

1. Inside temperature shows the ambient temperature of

the room.

2. WIFI indicator shows the state of the WIFI connection.

Green indicates WIFI is connected properly, Red

indicates connection to router only, bars indicate signal

strength, and no symbol indicates no connection.

3. Raise and lower the temperature set point using the

red and blue arrows.

4. Use the power button to turn the system on or off.

Button is red for off and green for on.

5. Pressing the mode icon changes from cooling or heating modes depending on what is available

in your system. See Table 2 for a list of all possible modes.

Table 2

6. Pressing the fan icon selects between manual (always on) fan speeds and automatic fan speeds.

Automatic will turn the fan off after the heating or cooling cycle is completed. See Table 3 for

available fan speeds.

Table 3

Indication

Available in mode

Action

Manual

fan low

Manual fan,

Cooling

Fan runs continually on low

Manual

fan high

Manual fan,

Cooling

Fan runs continually on high

Auto fan

Cooling, Auto

Fan cycles with compressor or

electric element

Fan off

Fan does not turn on

7. Home-away-schedule icon. Pressing this button selects between these modes. Home mode is

the normal operating mode using a single setpoint for temperature control. Schedule mode

allows changing set points throughout the day programmatically. Away mode allows setting a

heating and a cooling set point and automatically changing from heating to cooling.

8. The zone selection button will show a zone in green when it is turned on. The zone number will

show in gray if the zone is not available and in red if there is a fault with the zone.

9. Pressing the gear will change the settings screen to allow additional setup functions.

10. Pressing the set point will change the system units from °F to °C and back. The set point is also

used as an indicator of system operation. A red set point indicates a heating cycle is in process.

A blue set point indicates a cooling cycle is in process. A white icon indicates no cycle is in

process.

Additional items on main screen

Local weather: A weather icon will appear on the top row when the thermostat is connected to

the internet. Outside air temperature will be available in the lower left corner. Pressing the icon will give

additional local details.

Fan only

Automatic

Cool Only

Zone on

Gas heating

Zone off

Electric Heating

Away screen (Heat and cool set points)

Away operation allows setting upper and lower limits for temperature with a non-operating

area or “dead band” in the middle. This can be useful when setting a higher daytime cooling

temperature and lower night time heating temperature. It can also be used to control the temperature

extremes when you are away from the RV. The mode selected must be an automatic mode to allow

both heating and cooling operation.

1. Press the setpoints area to toggle between the selected value. A blue square will show

around the value you are changing. The upper value changes the cooling set point and the lower value

changes the heating set point.

2. Use the up and down arrows to change the selected temperature value.

Schedule screen

Set points may be changed on a time-based schedule. The mode used will be the heating or

cooling mode set on the main screen.

Setting a change event

1. Events will show --:-- when the event is disabled. Press the hours position to set the hours. A

flashing bar will appear under the hours along with up and down adjustment selectors. Use the

adjustment selectors to change the hours.

Press the minutes to move the flashing bar under the minutes and allow ¼ hour adjustments.

Use the up and down adjustment selectors to make changes.

Press the temperature to change the desired temperature set point. This is the temperature the

system will try to achieve after the time that was set.

12- or 24-hour format

2. Press the time in the upper right to change 12 and 24-hour time formats.

Setting the time

3. Time zone is set and saved whenever the thermostat connects using Bluetooth. Time is set on

power up through the internet connection, or whenever a connection is made on either Bluetooth or

WIFI.

Enabling the schedule

4. Press the enabled/disabled button to enable the schedule. The schedule will be active and

make set point changes anytime the schedule is selected on the main screen. The Home/Schedule/Away

button will only toggle between schedule and away when the schedule is enabled. The button will only

select between home and away if the schedule is disabled. Away mode is not configurable on a

schedule.

5. Press the round arrow to return to the regular settings screen.

Settings Screen

Pressing the settings gear brings up a menu with multiple options listed below. These are

informational or operational changes that can be made to the thermostat.

Last menu navigation.

Next menu navigation.

Return to main screen.

Help Screen: The QR code will bring you to the Micro-Air EasyTouch page when selected

using a QR compatible phone app. Below the QR code is the serial number for the

thermostat and the firmware revision for the thermostat. Firmware updates can be checked

for in the smart device application.

Day/Night mode. Day mode (shown above) will dim the display down to the screen saver

set point after 30 seconds. Night mode (moon icon) will turn off the back light after 30

seconds. The display will brighten again once the touch screen is pressed.

Schedule is used to change the set point automatically at a pre-determined time. See

Schedule operation for more details.

Temperature adjustment is used to adjust the inside temperature with an offset. This will

only apply to zone 1.

Temperature gap: Sets the “dead band” or gap. This is the number of degrees the

temperature must move to start a cycle. High numbers can prevent short cycling in smaller

RV’s

Restart: This icon allows restarting the thermostat just like removing and restoring the

power.

Touchscreen calibrate: This icon allows calibrating the touch press locations on EasyTouch.

This is normally not necessary. Follow the on-screen prompts to complete calibration.

WIFI is used to view your WIFI settings and MAC address. Changes to the WIFI connection

must be made using the smart device application.

Bluetooth is used to reset the Bluetooth password. This password is saved from your

account password. Only one account at a time may access the thermostat. Reset the

password whenever you change your account password.

Brightness settings allow dimming the normal brightness and setting the screen saver

brightness.

The DIP switches icon is used to configure the modes available in the thermostat. It must be

used when installing the thermostat to set the available heat sources. See setting the

available modes for more details.

Reset all will reset the thermostat to factory settings including all set points, schedule

events, and other settings.

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