Averaging Temperature Sensors
Set "TT= AV" in the advanced installer menu.
The SMT‐770 can average the sensed temperature equally between the remote
temperature sensor(s) and the one fitted to the SMT‐770 if required. See figure 1 on
the previous page for details on wiring the sensor. The SMT‐770 will auto‐detect this
sensor and automatically average the two sensors values to control the room
temperature.
Remote ON / OFF Function
Set "TT= OF" in the advanced installer menu.
Figure 3
The SMT‐770 can be connected to an external dry contact. When this
contact is closed the SMT‐770 will turn OFF. See figure 3. When the SMT‐770 has been
switched OFF via the "TT" terminals the word "OFF" will flash in the LCD to indicate that
this has been the shutdown method. The SMT‐770 will return to the user settings when
this switch is open.
Using the "Occupancy Mode"
Set "TT= OC" in the advanced installer menu.
The SMT‐770 can alternate between the user preferred set points and an installer pre
programmed set point when required. Simply wire a remote switch to the SMT‐770
"TT" terminals (see figure 3). When the switch is open the user settings will control the
room temperature. When the switch is closed the Installer "Oc" (Occupied Cooling
value) & "Oh" (Occupied Heating value) settings will be used to control the room
temperature.
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