Micro-Air EasyTouch RV 353 Touch Screen Thermostat Instruction Manual
Installing the Thermostat
Safety
First, it is recommended to remove both AC and DC power from your system. Unplug your RV
from shore power and turn off any converters or generators to remove AC power. Open your 12-volt DC
bus breaker or fuse to de-energize your thermostat. This greatly reduces the chance of any harmful
electrical discharge, as well as preventing accidentally opening a fuse.
Removing the Old Thermostat
The OEM thermostats have a front assembly that detaches from a back plate. Rotate the
thermostat counter-clockwise to free the front assembly from the backplate. The front assembly will have
4 wires attached to it by a screw terminal block. Take a picture of the wire colors as they enter their screw
terminals on the front assembly, to use as a reference later. Try to capture the wire names as well, which
are labeled at the base of the screw terminals. You can also write in Table 3 later in this section to record
what color wires have what name.
The backplate is attached to the wall by 2-4 mounting screws; remove them to remove the
backplate from the wall.
Wiring the New Thermostat
EasyTouch RV will come with 4 wires to make the appropriate connections. Micro-Air will also
provide slide in, lever operated connectors to make your wire connections to the OEM wires coming from
the wall. Table 3 shows how the EasyTouch RV wires will interface with the existing wires. Fill in the OEM
wire color column of the chart (along with a picture saved elsewhere) to have a recorded wiring reference.
Table 3 – Wire Color Chart
OEM Wire Color (Provided
to write in your own color)
OEM Wire
Label
Matching EasyTouch Wire
Color
Function
A
Blue/White Stripe
Purple
Communication
B
Communication
+12V
GND
Red
( + ) 12 VDC Power
Green
( - ) 12 VDC Power
4
©2022 Micro-Air Corp
November 22, 2022, revision 1.2
| General | Details |
|---|---|
| Name | Micro-Air EasyTouch RV 353 Touch Screen Thermostat Instruction Manual |
| Make | Micro-Air |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.42 MB |
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