Trane Tracer VV550 Installation, Operation And Maintenance Manual page 94

Appendix C: Mode Control Operation
Table 62. Space temperature control VAV unit operation (continued)
nvi Applic
Mode nvi Heat Cool
Morning warm-
Don't care
up
Cool Don't care
Night purge Don't care
Pre-cool Don't care
Off Don't care
Maximum heat Don't care
Calibrate Don't care
a.nvoHeatCool/reported unit status mode determined by the controller.
Controller state
Manual output test
Flow override (via nvi or */**) f
Water valve override
Auto-commissioning
Stand-alone air balancing
Calibration
STC: construction
STC: space temperature fails
Emergency override
Unit shutdown
Off
94
a, c
nvoHeatCool
nvoUnitStatus. nvoEffect
mode Occup
Unoccupied
Occupied
Morning warm-up
Bypass
Standby
Cool Unoccupied
Occupied
Bypass
Standby
Unoccupied
Occupied
Night purge
Bypass
Standby
Unoccupied
Occupied
Pre-cool
Bypass
Standby
Unoccupied
Occupied
Off
Bypass
Standby
Unoccupied
Occupied
Maximum heat
Bypass
Standby
Unoccupied
Occupied
Calibrate
Bypass
Standby
Sub state
Step 1
through 8
Output Operation
b
Air valve Enabled
Reheat Enabled
Fan Enabled
Vent req Disabled
Air valve Enabled
Reheat Enabled
Fan Enabled
Vent req Disabled
Air valve Enabled
Reheat Enabled
Fan Enabled
Vent req Enabled
Air valve Enabled
Reheat Disabled
Series fan Enabled
Parallel fan Disabled
Vent req Disabled
Air valve Enabled
Reheat Disabled
Series fan Enabled
Parallel fan Disabled
Vent req Disabled
Air valve Disabled
Reheat Disabled
Fan Disabled
Vent req Disabled
Air valve Enabled
Reheat Enabled
Fan Enabled
Vent req Disabled
Air valve Enabled
Reheat Disabled
Fan Enabled
Vent req Disabled
Reported
unit
nvoHeat status.
Cool mode
Test Test
Test Test
Test Test
Test Test
Test Test
Calibrate Calibrate
Heat Heat
Cool Cool
Don't
Don't care e
care e
Off Off
Off Off
Temp control
sequence
STC 
Morning warm-up
STC 
Unoccupied cooling
STC 
Occupied cooling
STC 
Pre-cool
STC 
Pre-cool
Off
STC 
Maximum heat
Calibrate
CNT-SVX17G-EN