34 RT-SVP011E-EN
TD7 Display
Stopped Sub Modes
Diagnostic Shutdown - Auto Reset
The unit is stopped by a Unit Level diagnostic that
may be reset automatically
depending on conditions and the specific diagnostic’s reset criteria.
Diagnostic Shutdown - Manual
Reset
The unit is
stopped by a Unit Level diagnostic that requires manual intervention
to reset.
External Auto Stop Contact has opened on the External Auto Stop input.
Immediate Stop
Unit is stopped by pressing the Stop button at the TD
7 Display, then pressing the
Immediate Stop button on the following screen.
Local Stop
Unit is stopped by pressing the Stop button at the TD7 Display. This stop has
highest prio
rity and cannot be remotely overridden.
Note: TU with a direct USB connection to the Symbio™ 800 has unit level privileges and
can also place the controller in Stop or Auto.
Power Up Delay Inhibit (XX:XX
Min:Sec)
The unit has experienced a power cycle, or has just terminated all active Ventilation
Override
Mode or Emergency Override Mode events. When the Power-Up Start
Delay timer expires the unit will enter Stop mode as defined in this table.
Note: If the unit is configured with Rapid Restart and the last Top Level Mode was
Stopped, Rapid Restart will be pending and the unit will enter the active Rapid
Restart event once Auto mode has been entered.
Table 6. Unit operation - top level mode - run inhibit
Unit Description
Top Level Mode
Run Inhibit
The unit is currently being inhibited from starting (and
running), b
ut may be allowed to start if the unit inhibit or
the unit level diagnostic conditions are manually or
automatically cleared.
Run Inhibit Sub Modes
Diagnostic Shutdown - Auto Reset
While the unit is in Auto mode, the entire unit has been
sto
pped by a unit level diagnostic that may be reset
automatically depending on conditions and the specific
diagnostic’s reset criteria.
Off The unit has been placed into Heat Cool Mode = Off.
Power Up Delay Inhibit (XX:XX Min:Sec)
The unit has experienced a power cycle, or has just
terminated all active V
entilation Override Mode or
Emergency Override Mode events. When the Power-Up
Start Delay timer expires the unit will enter Auto mode as
defined in this table.
Note: If the unit is configured with Rapid Restart and the last
Top Level Mode was Auto, with no other inhibits pending,
the Rapid Restart event will become active immediately.
Table 7. Unit operation - top level mode - auto
Unit Description
Top Level Mode
Auto
The unit supply fan is on providing minimum ventilation, but
there is no
call for heating or cooling capacity control.
Auto Sub Modes
Heat Air Modulation Failure Manf 1
The Air Pressure is not modulating down at minimum inducer drive.
Modulating Gas Heat only.
Table 5. Unit operation - top level mode-stopped (continued)
Unit Description
Top Level Mode
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