Analog inputs for 1 heat/1 cool applications
CNT-SVX06B-EN 35
BI3: Occupancy or generic binary input
The function of occupancy is to save energy by spreading zone set points
when the zone is unoccupied. BI3 is used for two occupancy-related func-
tions. For stand-alone controllers, this binary input can be hardwired to a
binary switch or clock to determine the occupancy mode—either occupied
or unoccupied. For controllers receiving a BAS-communicated occupancy
request, the function of BI3 is to change the mode from occupied to occu-
pied standby. (For more information on occupancy-related functions, see
“Occupancy modes” on page 48.)
BI3 is the only input that can be configured as a generic binary input.
When configured as a generic binary input, it can be monitored only by a
BAS, and has no direct effect on Tracer ZN511 operation.
Analog inputs for 1 heat/1 cool
applications
The Tracer ZN511 controller includes five analog inputs. Table 9
describes the function of each input for 1 heat/1 cool applications. Each
function is explained in the succeeding paragraphs. For an explanation of
the diagnostics generated by each analog input, see “Diagnostics” on
page 62. For more information about how the controller operates, see
Chapter 7, “Sequence of operations for the 1 heat/1 cool configuration”.
Table 9. Analog inputs for 1 heat/1 cool applications
Analog input
terminal label
Function
ZN Zone temperature
SET Local set point
FAN Fan mode input
AI1 Entering water temperature
AI2 Discharge air temperature
Note:
Use a GND terminal as the common ground for all zone sensor
analog inputs. See Figure 9 on page 40 through Figure 14 on
page 45.
To Next Page
Loading...
Need help?
General
