Micro-Air 351 Air Conditioner Digital Thermostat User Guide
EasyTouch RV 351
I don’t know which wire is which anymore!
You may have accidentally lost which wire is used for what purpose. You can typically use a
voltmeter to determine what each wire is. Disconnect the three wires and set the meter to measure
DC voltage at least up to 16 volts (some meters can be set to a lower maximum voltage). Make sure
your color probe is seated in the matching color hole of the voltmeter. Probe two of the three wires
proportion laid out by the table should be close enough to determine which wire is which.
Terminal Labels of Wires for EasyTouch RV
DC Voltage Measurement
About positive 12 Volts
About negative 12 Volts
Red Probed Wire Black Probed Wire
12V+
GND
GND
12V+
About positive 5 Volts
About negative 5 Volts
COMM
GND
12V+
GND
COMM
COMM
12V+
About positive (12 – 5 =) 7 Volts
About negative (12 – 5 =) 7 Volts
COMM
Table 3 - Voltage measurements to determine installation wire function
Re-apply Power
Restore DC power. The display screen should light up and boot into the main menus. Restore AC
6
©2024 Micro-Air LLC
Revision 2.0
| General | Details |
|---|---|
| Name | Micro-Air 351 Air Conditioner Digital Thermostat User Guide |
| Make | Micro-Air |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.6 MB |
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