Trane Tracer VV550 User Manual

92 CNT-SVX17G-EN
Appendix B: Tracer Summit
™
BAS Present Value Chart
The Tracer Summit BAS present value chart is contained in Table 61:
Table 61. Tracer Summit BAS SCC present value chart
What the Tracer Summit BAS sends to the SCC
Tracer Summit BAS present value
nviApplicMode heart
beat
nviOccSchedule
heartbeat
nviEmergOverride
no heartbeat
Unoccupied
Auto
Heat
Cool
Unoccupied Normal
Optimal start up
(Space temperature cold)
(Space temperature hot)
MWU
Pre-cool
Occupied Normal
Occupied
Auto
Heat
Cool
Occupied Normal
Duty cycle
Auto
Heat
Cool
Standby Normal
Demand limit
Auto
Heat
Cool
Standby Normal
Coast down
Auto
Heat
Cool
Standby Normal
Priority shutdown
Auto
Heat
Cool
No change Shutdown
Night heat/cool
(Space temperature cold)
(Space temperature hot)
MWU
Pre-cool
Occupied Normal
Night economizer Night purge Unoccupied Normal
Communication loss (receive heartbeat times out). This
happens at
different times for nviApplicMode and
nviOccSchedule. This would not happen for
nviEmergOverride.
Auto after receive
he
ar
tbeat times out
Occupied after receive
heartbeat times out
Stays at the last value
se
nt
, no receive
heartbeat

Trane Tracer VV550 Specifications

General

Brand	Trane
Model	Tracer VV550
Category	Controller
Language	English