14 BAS-SVU10C-EN
Status Display Instructions
The thermostat features a two-line, eight-character display. There is a low level back-light level that
is always active and can only be seen at night. When left unattended, the thermostat has an auto
scrolling display that shows the actual status of the system. Each item is scrolled one by one with
the back lighting off. Pressing any key will cause the back light to come on.
Sequence of Auto-Scroll Status Display
Room
Temperature System Mode
Schedule
Status
Outdoor
Temperature Alarms
Room Temp
x.x°C or °F
Sys mode auto Occupied
Outdoor
x.x°C or °F
Service
Sys mode off Unoccup Frost ON
Sys mode heat Override SetClock
Sys mode cool Filter
Sys mode
em
ergenc
Fa
n lock
Manual scroll of each menu item is achieved by pressing the Yes (scroll) key repetitively. The last
item viewed will be shown on the display for 30 seconds before returning to automatic scrolling.
Temperature is automatically updated when scrolling is held.
The outdoor air temperature display is enabled only whe
n an outdoor air
temperature sensor is
connected.
A maximum range status display of 50°C (122°F) indicates a shorted sensor. Associated functions,
such as mode lockouts and econ
omizer function are automatically disabled.
A minimum range status -40°C (-40°F) is not displayed and indicates a opened sensor or a sensor
not connec
ted. Associated functions, such
as mode lockouts and economizer function are
automatically disabled.
If alarms are detected, they are automatically displayed at the
end of the status display scroll.
During an alarm message display, the back lit screen lights up at the same time as the message and
shuts off during the rest of the status display. Two alarms maximum can appear at any given time.
The priority for the alarms is as follows:
Frost ON
Indicates that the heating is energized by the low limit frost protection room
temper
ature setpoint 5.6°C (42°F)
SetClock
Indicates that the clock needs to be reset. There has been a power failure which
has lasted
longer than 6 hours
Service
Indicates that there is a service alarm as per one of the programmable digital input
(DI1 or DI2)
Filter
In
dicates that the filters are dirty as per one of th
e programmable digital input (DI1
or DI2)
Fan lock
Indicates that the heating and cooling actions are lo
cked out due to a defective
fan operation
Three status LEDs on the thermostat cover are used to indicate the status of the fan, a call for heat,
or a call for cooling.
LED Operation Trane Heat Pump Models
Fan LED on When G Fan terminal operates
Heating LED on When Y1 and / or W1 terminal(s) operate in heating mode
Cooling LED on When Y1 terminal operate in cooling mode
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