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Airxcel Coleman-Mach 9420 381 Operation Manual page 4

Digital wall thermostat

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Dip Switches
The dip switches will enable/disable certain
functions of the thermostat. To apply any
changes to the dip switches after initial
installation, the device must be rebooted.
Refer to the Manual Reboot section for
instructions.
Refer to the table below for the dip switch
descriptions.
Dip
Label
Switch
1
No Label
Gas
(Factory
Default)
2
Elec
Cool+ Heat
(Factory
Default)
3
Cool Only
The dip switches can be accessed from the
rear of the thermostat when the back plate is
not attached. The dip switches are labeled
according to their function.
NOTE: Dip Switches MUST be properly set for
the equipment installed on the vehicle for the
thermostat functions to work as intended.
Function
Future use
Disables Electric heat
mode (gas heat only)
Enables Electric and
gas heating mode
Enables cool and
heat modes
(Auto Changeover)
Enables cool mode
and disables all
heating modes
HVAC Mode and Fan Mode Selection
Upon powering up the thermostat, the
display will show the HVAC mode set to 'Off',
the fan mode set to 'Off', the current
temperature, temperature units (default is
set to F for Fahrenheit) and remote sensor, if
used.
To set the HVAC mode - press the knob, the
display will now show the HVAC mode section
with the currently selected mode blinking.
Rotate the knob to scroll through the options.
When the desired setting is blinking, press the
knob to accept.
If off, cool, or cool+heat mode was selected,
the fan mode will illuminate with the
currently selected mode blinking. Rotate the
knob to scroll through the options. When the
desired setting is blinking, press the knob to
accept.
The display will now show HVAC mode and
state (if applicable), the current temperature,
temperature units, the sensor in use, the set
point temperature (when in an HVAC mode
other than off), and the fan mode and state (if
applicable).
When the thermostat returns to this screen, it
will check to see if any outputs need to be
enabled or disabled and performs those
actions.

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Coleman-mach 9420 382