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SMT-400 Draft Manual
Outside Air Temperature
This is the current outside air temperature measured either from the hard-wired outside air sensor of from the internet
for your location (if Wi-Fi is active on your SMT-400).
Door / Window Open
The SMT-400 has advanced energy saving functions such as door or window monitoring. (Optional door window switch
required). If enabled by the installer, when a door or window is left open for longer than a few minutes the SMT-400 will
display this text and may restrict user functions until the door or window is closed.
Un-Occupied Mode Indicator
The SMT-400 can determine whether the room is occupied or unoccupied and alter the set points accordingly. When the
room is un-occupied this text is shown to inform you thermostat functions are locked.
Set Point Limit Reached
Pre-defined installer set point limits prohibit the user from apply heating set points that are too hot or cooling set points
being too Cool. When the installer defined set point limit is reached the SMT-400 will chirp its beeper and flash the set
point limit text on the display to indicate no further adjustment is permitted.
Function Locked
This Icon will be shown whenever you try and access a function or press a button that is locked out.
Fault
When this text is shown your SMT-400 has been provided with information from your air conditioner or building
management system that a fault in the system has been detected. This may affect the function of the SMT-400
thermostat.
The text “Fault” may be shown if your SMT-400 can connect to your wireless Wi-Fi network router however your router
has lost internet access and therefore the SMT-400 cannot connect to the Smart Temp Comfort App server.
(Note, the text "Fault" on the SMT-400 DOES NOT indicate a fault with the SMT-400 itself)
Fresh Air in Use
Your SMT-400 can measure the outside air temperature and if cool enough draw in outside air to cool your home or
office. When outside air is being used this text is displayed.
Communication Icon
This ICON is show whenever the SMT-400 is communicating via Wi-Fi. It is shown to indicate that your SMT-400 may be
receiving control information from a location other than the SMT-400 buttons. This may include set point changes,
modes or other settings that effect your comfort levels. The Icon is not shown if communications are disabled or not in
use. It will flash if there is a communications error or during Wi-Fi setup.
(Note – ModBus communications in progress is indicated by the decimal point in the room temperature flashing.
Mode Adjustment
Tapping this button will cycle the SMT-400 through all available modes, heating, cooling, or Auto mode. These functions
are described in more below.
Fan Mode Adjustment
Pressing & Holding this button will cycle the SMT-400 through all available Fan Modes being Auto Fan or Fan On mode.
These functions are described in more detail below.
Fan Speed Adjustment
Tapping this button will cycle the SMT-400 through all available Fan Modes being Low speed, medium speed, high speed
or Auto fan speed where the SMT-400 will select the most appropriate fan speed for the current conditions. These
functions are described in more detail below.
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