micro-Air ASY-354-X02-C Inverter Supply User Manual
- June 4, 2024
- Micro-Air
Table of Contents
EasyTouch 359
Operating Manual Revision 1.31
©2022 Micro-Air Corp
May 20, 2022, revision 1.3
The EasyTouch 359 model 12-volt thermostats were designed to directly replace the Dometic™ model 3106995 single zone DC 7.5-volt thermostats. The thermostats can be used in other applications with certain electrical limitations as explained later in this document.
Safety First
Turn off power to the air conditioner breaker and to the 12-volt circuit
powering the thermostat. There is always a risk of shock in any system that is
connected to high voltage utility power so removing power greatly reduces that
risk.
There is a risk of creating a short circuit with some of the thermostat wires
during installation that can cause a failure or undesired operation. Removing
power reduces the risk you will damage something or open a hard-to-find fuse
during installation.
Installing the thermostat
There are four steps to installing the thermostat. Removing the thermostat,
wiring the new thermostat, installing the new thermostat, and finally,
updating the control box wiring. Please read each section entirely before
proceeding with that section. Please perform these steps in order otherwise
you may damage your original thermostat.
Removing the old thermostat
IMPORTANT: Take a picture of the wires and labeling so if there are any
questions about the original configuration later, you can see how it was
connected.
Remove the front cover by carefully popping it off. Complete Table 1 using
your wire colors. Your colors may be different from the normal factory-
suggested wire colors and not all wires may be used. Label any that are not
there with “Not used”.
Table 1
Typical original thermostat wire
color| Original factory wire harness color (Write in here)|
Connect to EasyTouch
terminal label| Function
---|---|---|---
Red or Red/White| | R| +7.VDC
Black or Green| | B| -Ground
Orange or Tan| | GL| Fan
Green| | GH| Fan high
Yellow| | Y| Cool
Violet or Orange| | WHP| HP (heat pump)
White| | W| Furnace
Not used| | SEN| Sensor
Not used| | SEN| Sensor
Disconnect the red or red/white wire labeled +7.5V and place a piece of tape
around the exposed wire end. Disconnect the remaining wires (tape is not
necessary). Remove the cover to expose the two screws that hold the thermostat
to the wall and remove the rest of the 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 screwdriver (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. Wiring the
thermostat
SAFETY FIRST: Turn off power to the air conditioner breaker and to the
12-volt circuit powering the thermostat. There is always a risk of shock in
any system that is connected to high voltage utility power so removing power
greatly reduces that risk and the risk of shorts that can damage something.
Use the table entries written in Table 1 to complete the wiring. Insert each
wire as described in the section titled “Using the push button terminals”.
Insert the +7.5-volt wire last so it cannot contact any other wires
when the tape is removed.
Change the control box wiring
SAFETY FIRST: Remove power before changing the control box wiring.
Step 1: After removing power from the AC unit, remove the ceiling vent as
shown in Figure 2. Identify the red and red/white wires exiting the control
box near the area indicated by the blue arrow. These wires are pulled out and
shown in Figure 3 connected to a brown and thin red wire. They may still have
labels on them to indicate their
function. Step 2: Remove the wire connected to the red/white
wire which may still have the label “To TStat 7.5 Screw”. Put a connector over
the red wire with stripe as shown in Figure 3. Step 3: Add the wire
disconnected in step 2 to the +12-volt wire connections as shown. This
installation uses wire nut electrical connectors. However, crimp splice or
WAGO connectors are more desirable for the vibrations encountered by the
terminals.
My wire colors and gauges are different than shown?
There will be 4 wires of varying thickness and color between red, red/white,
and brown, configured in two pairs. The goal is to identify which of these 4
wires goes to the original thermostat’s +7.5 terminal (one of the red or
red/white wires) and move it to the other pair. This will route 12 volts down
to EasyTouch. You should have ultimately a wire by itself (the control box
outgoing +7.5 wire) and the other three altogether (incoming +12, input +12
for the control box, and now the outgoing thermostat red or red/white wire).
Mounting the thermostat
Step 1: Locate the mounting buttons horizontally across the hole with a 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 the second screw making sure the two buttons remain level.
Step 4: Remove the mounting tab before mounting on the wall. Step 5: Align 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.
Thermostat Setup
Setting the Available Sources
| Press the settings button on the main screen.
---|---
| Use the back and next buttons to locate the “switches” icon. Press the icon
to configure the modes from the available sources.
| Press the icons to select or deselect the mode. A red circle with a line
through it will appear over the source when it is deselected.
Gas Heat Override Enable/Disable
You can enable or disable gas heat override by tapping the Enable/Disable
button under the “Auto Gas Changeover” heading. When enabled, all of your
available heat modes will act in stages based on how far the inside
temperature is from the set point. See section Gas Heat Override for more
details. Most users will leave this setting enabled. Invert On/Off
This setting changes the polarity of the furnace from +12 volt active to
ground active. Most users will set it for invert ON. Setting the incorrect
setting will cause the furnace to operate all the time.
Connecting remotely
EasyTouch RV can be operated entirely by the touchscreen, however, you can
also communicate, monitor, and modify its operation of it wirelessly using the
EasyTouch RV application. Some extra features will require a wireless
connection and is described in their sections. See section Working Wirelessly
for details.
Operating the Thermostat
Main Screen
This screen is where most time is spent using the thermostat. This screen
allows you to set and monitor the desired operation of the thermostat and is
shown in Figure 4.
-
Inside temperature
This is the temperature reading for the space that the thermostat is trying to temper, determined by a local sensor. “Inside” means it is using a sensor inside the thermostat. “Inside(R)” is not used in this model and should display “Inside”. -
Local Weather
This icon indicates the local weather at the last time weather information was received. Tap the icon for more detailed weather information. See section Local Weather and Local Time for more details. -
Status Tray
Various icons may be here to indicate active operations.
The Wi-Fi indicator shows the state of the thermostat’s Wi-Fi connection. No icon means no connection to an internet-enabled device. Red means it is connected to an internet-enabled device but does not have internet. Green means it is connected to the internet. The number of bars indicates strength. See the Connecting to a New Wi-Fi Network for more details. The Furnace icon here means that the heat mode is in Gas Heat Override. See section Gas Heat Override for more details. The Schedule icon here means that the created schedule is active and will change operation on that schedule. This is turned on and off in the Settings screens. See section schedule Screens for more details. -
Status Message
Various messages may be shown here to indicate active operations. See the Status Messages section for potential messages and their meanings. -
Temperature Set Point Adjust
Raise and lower the temperature set-point using the red and blue arrows. This sets the desired temperature for the space based on the operating mode. All modes are listed in the (7) Operational Mode section. -
System Power
Use the power button to turn the system on or off. The button is red for off and green for on. -
Operational Mode
Pressing the mode button changes the current operating mode depending on what is available in your system. All possible modes are listed below. See the Operational Modes section for more details.
Note: If you do not see a mode you should then see the section Setting the Available Sources. -
Fan Speed
Pressing the fan button selects how the fan will operate in conjunction with the (7) Operational Mode. Fans with green bars are manually always-on regardless of heating or cooling, with a number of bars indicating speed. Fan Auto turns the fan on and off with a cooling or heat pump/strip cycle, and operates as Fan Off in all other operational modes. Fan Auto will switch from low to high speed automatically based on the difference between inside temperature and setpoint. See section Temperature Gap (Hysteresis) for details on controlling when this occurs. If Fan Auto determines that high speed is needed then it will remain on high until the cycle terminates.![micro Air ASY 354 X02 C Inverter Supply - terminatesmicro Air ASY 354 X02 C Inverter Supply
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Settings
Pressing the settings button will change the screen to the settings screen to allow additional configurations. See section Settings Screens for more details. -
Additional Status Tray
Various icons may be here to indicate active operations. The hourglass symbol indicates that a heating or cooling cycle delay is in progress. It is an indication that the thermostat will start a cycle soon. This is a 3-minute timer from the end of a previous cycle to prevent a new cycle from occurring. -
Outside Temperature
This is the temperature reading for your local area that is retrieved over the thermostat’s internet connection and is part of the (2) Local Weather information.
-
Operational Modes
All modes operate the overhead fan and/or a heating or cooling cycle based on
the current heating or cooling setpoint, relative to the inside temperature.
Fans and Fan Only Mode
This mode lets the fan to operate based on the chosen (8) Fan Speed. This will
circulate the air without operating any heating or cooling cycles.
Cool Only Mode
This mode only runs a cool cycle to maintain the cooling set-point in the
space. Set the (7) Operational Mode button to Cool Only and the desired (8)
Fan Speed, where behavior will then be based on Table 2.
Environment (°F) | Cycle Operation | Auto Fan Operation |
---|---|---|
Inside ≤ Setpoint | None | Off |
Inside 1° Above Setpoint | Cooling Cycle Begins | On Low |
Inside 3° Or More Above Setpoint | Cooling Cycle Continues | Low or High Based |
on Gap
Inside Returns 1° Below Setpoint| Cooling Cycle Terminates| Runs 30 More
Seconds, Off
Note: Table 2 operation may be different based on the Gap settings. See
section Temperature Gap (Hysteresis) for details.
Heat Pump Only and Heat Strip Only Mode This mode only runs an electric,
overhead, heat pump or heat strip heating cycle to maintain the heating set-
point in the space. Set the (7) Operational Mode button to Heat Pump Only or
Heat Strip Only and the desired (8) Fan Speed, where behavior will then be
based on Table 3.
Environment (°F) | Cycle Operation | Auto Fan Operation |
---|---|---|
Inside ≥ Setpoint | None | Off |
Inside 1° Or More Below Setpoint | “Electric” Heat Cycle Begins | On low |
Inside 3° Or More Below Setpoint | “Electric” Heat Cycle Continues | Low or High |
Based on Gap
Inside Returns 1° Above Setpoint| “Electric” Heat Cycle Terminates| Runs 30/90
More Seconds, Off
Table 3 – Heat Pump and Heat Strip Only Mode Operation
Note: Table 3 operation may be different based on the Gap settings. See
section Temperature Gap (Hysteresis) for details.
Note: These heat modes are subject to Gas Heat Override Operation when
enabled. See section Gas Heat Override for details.
Furnace Only or Aqua Only Mode
This mode only runs an auxiliary heating cycle to maintain the heating set-
point in the space. Set the (7) Operational Mode button to Furnace Only or
Aqua Only and the desired (8) Fan Speed, where behavior will then be based on
Table 4. See section Furnace/Aqua Icons for details on the auxiliary heating
icon.
Environment (°F) | Cycle Operation | Auto Fan Operation |
---|---|---|
Inside ≥ Setpoint | None | Off |
Inside 1° Or More Below Setpoint | Auxiliary Heat On | |
Inside Returns 1° Above Setpoint | Auxiliary Heat Off |
Table 4 – Furnace Only Mode Operation
Note: Table 4 operation may be different based on the Gap settings. See
section Temperature Gap (Hysteresis) for details.
Auto Modes
These modes will automatically switch between heating and cooling cycles as
needed. Their operation will be the same as their “only” mode counterparts
described earlier in the Operational Modes section. Auto modes will have their
own “dual” set-points that are separate heating and cooling set-points. No
heating or cooling cycles will occur when the inside temperature is between
the set- points.
This can be useful when setting a higher day-time 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. Figure 5 shows how the
main screen will look in auto mode.
Note: These auto modes are subject to Gas Heat Override and Gap
operations. See their Gas Heat Override and Temperature Gap (Hysteresis)
sections respectively for more details.
(1) Auto Mode Set-Points
Press the set-points to toggle between which set-point you have selected. A
blue square will show around the one you have selected. The upper set-point is
for cooling and the
lower set-point is for heating.
(2) Set-Point Adjustment
Use the up and down arrows to change the selected set-point value.
Gas Heat Override
Note: See section Gas Heat Override Enable/Disable for enabling and
disabling this feature. Gas Heat Override operation is an algorithm for
calling for additional stages of heat when the thermostat determines more are
needed. The two escalating stages are shown in Table 5. This logic is disabled
when both stages are not available.
Staging | Heat Source |
---|---|
Stage 1 | Heat Pump/Heat Strip |
Stage 2 | Gas/Hydronic Heat |
Table 5 – Heat Staging
Table 6 shows how Gas Heat Override affects the heat pump and heat strip operational modes when enabled. This applies to heating cycle calls in auto operational modes as well.
Environment (°F) | Operation |
---|---|
Inside 4° Or Less Below Setpoint | Normal Heating Operation (Stage 1) |
Inside 5° Or More Below Setpoint | Stage 1 and Stage 2 Runs Until Setpoint is |
Satisfied
3 Cycles in a Row Call for Escalation| Stage 2 Starts and Runs Any Heat Cycle
For Next Two Hours
(Stage 1 is “Locked Out” during this time)
Table 6 – Furnace GHO Operation
Note: Table 6 operation may be different based on the Gap settings. See
section Temperature Gap (Hysteresis) for details.
Local Weather and Local Time
Local weather is displayed on the main screen and shown visibly in section (2)
Local Weather under section Main Screen. Tapping the button will reveal more
detailed weather information of the last received weather data. The local
temperature is displayed in the lower-left corner of the main screen, as shown
in section (11) Outside Temperature. A valid location and an internet
connection on the thermostat are required to retrieve weather data. Local time
data also requires valid location data. Location is saved in the thermostat
when a Bluetooth connection is made from a smart device with its location
services enabled. The location in the thermostat is updated when a subsequent
Bluetooth connection is made with a different smart-device location than the
one saved. Location is preserved through power losses or device restarts.
New weather data is retrieved when there is a screen press or when a
connection from a smart device is made, along with the above prerequisites.
Time is pulled in when a Bluetooth or Wi-Fi connection is made from the app.
Also, an internet connection on the thermostat will grab the time so long as
there is a valid saved location. If power is interrupted or the device is
restarted, it will go out to the internet to grab the current time when the
internet connection is re-established, without app interaction.
Status Messages Some messages may be displayed on the main screen as
shown in section (4) Status Message under Main Screen. Table 7 shows the
potential messages and their meaning.
Message Text | Description |
---|---|
OPEN INDOOR SENSOR | The room sensor inside EasyTouch RV has failed |
open/disconnect or
shorted and must be repaired.
BAD INDOOR SENSOR
AUX HEAT ENABLED| This means that the two-hour timer of the Gas Heat Override
logic is active. See the Gas Heat Override section for details.
Table 7 – Status Message Descriptions
Schedule Screens
The schedule supports 7 day per week scheduling of events. Events can include
changes to the set point or mode of operation for one or more zones. Figure 6
shows the main schedule screen. The smart device application also offers a
method to copy days. Once a schedule is set for one day, it can be copied to
any other day.
-
Day of the Week
Day of the week is selected from the days along the top of the screen. The day selected appears in white. -
Scheduled Events
Events are numbered 1 to 6 along the left side of the display. Tap an event to edit it and advance to the schedule edit screen, shown in Figure 7. Tap “more” to see events 4, 5, and 6. -
System Time
System time is displayed along the bottom. Tap the time to change from 12-hour to 24-hour time format. A “–:–” is shown when time has yet to be set. See section -
Back
Tap the back arrow to return to the last screen.
Figure 7 shows the edit screen when an event is tapped as shown in (2) Scheduled Events on the main schedule screen. The event on the main screen and action time in the edit screen will show disabled until a time is set. Press “Disabled” (1) at the top of the screen to show a gray box around the disabled selection. Use the up and down arrows to make a change. The up and down arrows change to full color once a selection is made. Use the back arrow (2) to save any changes and leave the screen. Figure 8 shows the schedule edit screen once a valid time is set for the event.
- Set the event time by selecting hours, minutes or AM/PM.
- Set the desired mode by tapping the mode button.
- Tap the hours, minutes, AM/PM or the set point to select an editable parameter, then use the red and blue arrow buttons to make a change.
- Tap the zone number to enable/disable the zone you want this event to affect. A green box will draw around zones the event is enabled for. EasyTouch RV models that are not zone controls will not have this feature and will always be enabled when a valid Action Time (1) is used.
Create and Enable a Schedule
- Tap the edit schedule button as described in the Schedule – Edit, Enable or Disable section in settings, to enter the main schedule screen, shown by Figure 6.
- Ensure that a valid (3) System Time is shown. Tap the day you want to set up a schedule for, then the event you want to edit, all shown by Figure 6. Tapping the event will take you to the edit schedule screen, shown by Figure 8.
- Tap the Action Time, Setpoint and Mode to make edits to what you want your event to do. Tap the zone you want this event to occur in if shown.
- Tap the back button and repeat for any other events and any other days.
- Tap the back button once again to return to the settings screen and this will save your schedule. Activate the schedule by pressing the schedule button with the “Enabled/Disabled” subtext as described in the Schedule – Edit, Enable or Disable section in settings. When enabled, it will be noted on the Main Screen (3) Status Tray.
Settings Screens
The settings screens allow for further configuration and control of the
thermostat. It is a paged system that you can navigate through to see all
available settings. Each setting button can be tapped to configure the
related settings. Note: Not all settings may be available based on your
EasyTouch RV model. If you do not see the graphic then
it is not available for your system. Tap the settings button as shown in
section (9) Settings under Main Screen to view them.
Navigation
Use these buttons to flip through all the available settings or return to the
main screen.
System Help
This screen displays a QR code that can be scanned to provide information
about thermostat operation and troubleshooting from the Micro-Air website. It
also shows the
current thermostat firmware revision and the thermostat serial number.
Day/Night Mode (Screen Saver)
Tap this icon to switch between Day or Night mode. Day mode will dim the
display down to the Sleep Level set in the Display Brightness settings, after
30 seconds of no screen
presses. Night mode will turn the backlight completely off after 30 seconds of
no screen presses. The display will brighten again after a screen press to the
Active Level set in the
Display Brightness settings. Display Brightness
This screen allows you to set the Active and Sleep brightness levels that are
used by the Day/Night Mode (Screen Saver) settings. Tap the associated up and
down arrows to
change their level.
Schedule – Edit, Enable or Disable
There are two Schedule buttons with sub-writings “Schedule” or
“Enable/Disable”. Tap the enable/disable button to turn the schedule on or
off. Tap the schedule button to
modify the schedule. See section Schedule Screens for more details. Wi-Fi
Information
This screen allows you to monitor the state of your Wi-Fi connection to the
thermostat. SSID and Password fields shows the saved credentials that the
thermostat is always attempting to find and connect to. Tap the password field
to reveal the password. The Router, Strength, and Internet fields show the
state of the Wi-Fi connection. The MAC
address of the thermostat is also shown at the bottom. See the section
Connecting to a New Wi-Fi Network for more details about using Wi-Fi.
Bluetooth (Account) Password Reset
This screen is used to reset the saved Bluetooth password in the thermostat.
This is the password that must match your EasyTouch RV app account to make
remote connections. Only one account can have access to the thermostat. Use
this whenever you reset the password to your app account to regain remote
access to the thermostat.
Temperature Reading Adjustment
This setting allows you to calibrate the Inside temperature reading with an
offset. For example, if the inside temperature reads 72°F (22.2°C) and you
feel it is 75°F (24°C), you
can use the up and down arrows on this page to increment the offset to +3°F
(+1.8°C).
Temperature Gap (Hysteresis)
These settings under “heat” and “cool” headings determine the difference in
temperature required between setpoint and inside temperature before heating or
cooling cycle will
begin. This is helpful to prevent short cycling in large spaces or spaces with
high thermal loss, by running a cycle for longer amounts of time. This offset
is applied to all logic that involves setpoint operations, such as auto modes,
gas heat override, etc. See Table 8 for an operational example.
Inside Temperature (°F)| Heating Setpoint (°F)| Heating Gap
Setting (°F)| System Operation
---|---|---|---
69| 68| 3| None
66| None
65| Heating Cycle Begins
67| Heating Cycle Continues
69| Heating Cycle Terminates
Table 8 – Temperature Gap Operational Example
The setting “Auto-Fan High” determines the difference in temperature required between setpoint and inside temperature for the Auto Fan (8) Fan Speed to switch from Fan Low to Fan High. If Fan High is called for during a cycle then it will remain high until the cycle terminates. See Table 9 for an operational example where the “Cool Gap Setting” is 1°F.
Inside Temperature (°F)| Cooling Setpoint (°F)| Auto Fan Gap
Setting (°F)| System Operation with
Auto Fan
---|---|---|---
81| 78| 4| Cooling with Fan Low
82| Cooling with Fan High
79| Cooling with Fan High
Table 9 – Auto Fan Speed Gap Operational Example
Measurement Units
This setting determines how to display temperatures on the thermostat. Tap the
Units button to toggle between Fahrenheit and Celsius.
Touchscreen Calibration
The EasyTouch RV touchscreen is calibrated at the factory to accurately
interpret your touch presses. Pressing the Touchscreen Calibrate Button will
allow you to recalibrate the
touch press area. Follow the on-screen prompts to calibrate the touchscreen.
Any overlapping test targets on the second screen is a good calibration.
Restart This setting will turn the thermostat off then on as if removing
and restoring power. Tap the Restart button and follow the on-screen prompts
to confirm.
Reset All This setting will reset certain settings in the thermostat back
to factory defaults. Some thermostats offer options to which settings to
return to defaults. Tap the Reset All button and follow the on-screen prompts
to choose what you would like to reset.
Dip Switches
This setting is used to configure your thermostat’s operational settings and
is slightly different for each EasyTouch RV model. Some simply display how the
air conditioner
control board that EasyTouch RV communicates with is configured. Others allow
for telling EasyTouch RV what appliances it has connected to it. Tap the
Switches button to see what configurations are available. See section
Thermostat Setup for details on what must be configured, if any. Micro-Air
cannot assist with manipulating and adding more
appliances to your system. ****
Auto-Generator Start (AGS)
This setting allows for a generator to start prior to any appliances that need
line voltage to run, then turns it off when the cycle completes. Tap the AGS
Enable button to green to enable this behavior or to gray to disable it.
Furnace/Aqua Icons
Most RV systems have auxiliary heat modes in the form of a gas furnace or
hydronic heat. EasyTouch RV or the associated control board treats these as
the same output and so you can tap the Furnace/Aqua button to toggle between
what icons to display for this operational mode. This is simply a cosmetic
setting for all EasyTouch RV models except
the 350 model, which should be set appropriately.
Smart device settings options
Reset device
This Bluetooth-only feature allows resetting the display just as if you
removed and restored power.
Calibrate Touchscreen
It is normally not necessary to recalibrate the touchscreen. This selection
prompts the user to press the four corners of the display and then test the
calibration using three diagonal marks. This feature is only available from
Bluetooth as being at the thermostat is required.
Check for updates
Checks to see if any updates are available for the thermostat. The smart
device application must have internet and the thermostat must be connected to
Wi-Fi with a green Wi-Fi symbol. Tap Check for Updates and follow the
prompts.
Notifications
Notifications provide a way for the user to monitor the temperature in the
space using notification limits. Limits are set by connecting to the
thermostat in the app, selecting the settings gear, and then selecting
notifications. A minimum and maximum allowed temperature can be set. Table 10
shows an example of an operation with an 80°F maximum temperature set. A
notification will be sent for each degree it rises above the maximum
temperature. If the temperature drops, no notification will be sent unless the
temperature exceeds the last maximum temperature again (82 in the example). If
the temperature drops two degrees below the set maximum, (78 in the example)
it will again alert for each degree above the set maximum. This behavior helps
avoid nuisance notifications to your smart device.
Table 10
Temperature °F | Action |
---|---|
80 | Send first notification |
81 | Send another notification |
82 | Send another notification |
81…79 | The temperature drops, no notification |
78 | Max temp resets |
Edit Wi-Fi Settings or Connect to Wi-Fi
This is where you will make the connection from the thermostat to the
internet. See section Connect to a New Wi-Fi Network for details on how to use
this feature. The app must be connected to the thermostat over Bluetooth to
see this option.
Troubleshooting
The most common problems during installation are mismatching the wires and not
seating the wires in the connector properly. The first step should always be
to recheck the instructions and make sure the wires are seated properly.
The second most common problem is not knowing the thermostat operation. If the
system is running a heating or cooling cycle, a large number of the
temperature set point will turn red for heating and blue for cooling. When the
large thermostat numbers turn white, the heat pump, heat strip and furnace
should all be off. The fan may continue to run for a while after the cycle
completes. If a fan is left in manual mode, it will not shut off.
Testing an output
The first step is to check the fuse on the back of EasyTouch and verify it is
still good.
Figure 5 is a table showing the terminal label and purpose for each of the
thermostat wires. This information can be used in troubleshooting to verify
that the thermostat turned on an output. Use a voltmeter to verify that the
thermostat has turned on an EasyTouch output. Set to voltmeter measure
DCvoltage and check for ~0 volts between the blue (ground) wire and the output
terminal to be tested to see if the thermostat has turned on the output. There
should be 0 volts present when the output is on and 12 volts when the output
is off. Further troubleshooting of the component (fan, compressor furnace,
heat pump, heat strip) is required if the voltages are correct but the output
is still not operating. If the thermostat does not have power, test between
the R and B wires to determine if there is 12-volt power to the thermostat.
EasyTouch RV Knowledge Bank – More Information
Visit our knowledge bank at http://www.micro-air.com/kb_easytouch_rv.cfm for
the latest resources for setup, operation, and troubleshooting, as well as our
main website for contacting us for support
Figure 5
Terminal label | Function |
---|---|
R | +12VDC |
B | -12VDC, Ground |
GL | Fan low |
GH | Fan high |
Y | Compressor |
WHP | Heat pump (Valve) or Heat Strip |
W | Furnace |
SEN | Not used |
SEN | Not used |
Working Wirelessly
This thermostat may be operated remotely using either Bluetooth or Wi-Fi. All
connectivity is performed through the EasyTouch RV App on a smart device. The
app is downloaded from the Google Play store or Apple App store. The first
time the app is opened, it will ask to create an account. Create your account
and follow the prompts to connect your thermostat. Bluetooth is a limited
range method to connect, typically used when near the thermostat. The
thermostat can be connected to an internet-connected network, where you can
then access the thermostat from anywhere you have an internet connection with
the app.
If a second user is going to use the thermostat remotely, they MUST use the
same account and password that the first user assigned to the thermostat. Each
thermostat can only be assigned to a single account, but many users can
control the thermostat if they use the same account.
First connection steps
Note: An internet connection on your smart device is necessary for these
steps.
- EasyTouch RV uses BLE which is a special implementation of Bluetooth. It is not necessary to “Pair” the thermostat with the phone but an account must be created for operation. Ensure that Bluetooth is enabled and that the app has Bluetooth and location services permissions. Android users must also have location services turned on in general.
- Start the app on your smart device. The app will open and if you have not entered your account information, it will ask you to create an account and enable permissions. Enter your name, email, and password at the prompts. The system will send a confirmation email to your inbox. Enter the number in the confirmation email when asked.
- Once the account is created, the application may ask to add a device. If your thermostat is powered it will show in the list to be added to your account. Select the device and enter a name for it. This name is used to identify and connect to it in the future.
- If you added control, the app will ask if you want to connect it to Wi-Fi now. Enter your SSID (network name) and password of the network you want to connect the thermostat to.
Adding a Thermostat to Your Account
Follow the next steps if the accounting process does not add a control or a
second thermostat is to be added.
- Press the settings gear and “Add Device”.
- The nearby thermostat(s) should be listed in the new selection window. These are the thermostats heard over Bluetooth. Select the device and enter a name for the device.
- Press OK and the screen will return to the settings menu (Android) or the selection screen (Apple). Android users should press the back button to get to the selection screen.
- Select the device name to open the thermostat screen.
Connecting to a New Wi-Fi Network
You can connect to the thermostat from anywhere using the app when the
thermostat is connected to an internet source. The internet source must be a
2.4GHz network to connect to EasyTouch.
-
Connect to the thermostat in Bluetooth (Apple) and press the settings gear.
-
Select Wi-Fi Setup from the settings window.
-
Connect to a network:
a. The SSID (network name) will say “searching” then switch to “select”. Tap “select” to choose from a network the thermostat can hear.
i. Alternatively, enter the SSID manually (case sensitive)
b. Enter the password (case sensitive). -
Press OK and the screen will return to the selection screen. The thermostat will reset and a green Wi-Fi symbol will appear on the thermostat screen if the connection was successful.
-
With a green Wi-Fi symbol, you can now connect to the thermostat from anywhere using the app over the internet
Updating The EasyTouch RV Thermostat
Ensuring you have the latest thermostat software is key to having all the
latest features.
- Ensure the thermostat is connected to Wi-Fi with a green Wi-Fi symbol.
- Connect to the thermostat and press the settings gear, then tap Check for Updates.
- Follow the prompts to update the thermostat or ensure that you already have the latest software.
Appendix
Using this thermostat on other applications
It is possible to use this thermostat for custom installations. The outputs
are all pull-to-ground active and pull up to “12 VDC” inactive outputs. The
maximum drive current is 200mA per output. This thermostat cannot be used for
24 VAC applications. Contact Micro-Air if you are not certain this device will
work in your intended application.
©2022 Micro-Air Corp
May 20, 2022, revision 1.3
Documents / Resources
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micro-Air ASY-354-X02-C Inverter
Supply
[pdf] User Manual
ASY-354-X02-C, Inverter Supply, ASY-354-X02-C Inverter Supply
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