Trane Tracer VV550 User Manual

42 CNT-SVX17G-EN
Sequence of Operations
Heating and Cooling Changeover Logic
The controller can receive communicated requests for heating or cooling operation. Two
communicated variables (communicated application mode and communicated heat/
cool mode) are used to communicate the requests to the controller (see Table 29). For
more inf
ormation on the relationship between these two variables, refer to Table 62 on
page 92.
Table 29.Heating and cooling chang
eover logic
System
command,
communicated
application
mode,
communicated
heat/cool mode
Primary air
temp,
communicated
source temp or
local input
g
Local
zone
demand
f
Reported
heat/
cool
mode or
reported
unit
status
mode
a, b
Air
valve
action
c
Air valve
position
Active
minimum
h
Heat Hot Don’t care Heat Heat Modulation Refer to Table 40 on
page p. 60 for Active
M
inimums
Cold Don’t care Heat Cool Refer to Table 40
on
page p. 60 for
Ac
tive Minimums
Refer to Table 40 on
page p. 60 for Active
Minimums
Invalid Don’t care Heat Heat
d
Modulation Refer to Table 40 on
page p. 60 for Active
M
inimums
Cool Hot Don’t care Cool Heat Refer to Table 40
on
page p. 60 for
Ac
tive Minimums
Refer to Table 40 on
page p. 60 for Active
M
inimums
Cold Don’t care Cool Cool Modulation Refer to Table 40 on
page p. 60 for Active
M
inimums
Invalid Don’t care Cool Cool
d
Modulation Refer to Table 40 on
page p. 60 for Active
M
inimums
Auto Hot Heat Heat Heat Modulation Refer to Table 40 on
page p. 60 for Active
M
inimums
Cool Cool Heat Refer to Table 40
on
page p. 60 for
Ac
tive Minimums
Refer to Table 40 on
page p. 60 for Active
Minimums
Cold Heat Heat Cool Refer to Table 40
on
page p. 60 for
Ac
tive Minimums
Refer to Table 40 on
page p. 60 for Active
Minimums
Cool Cool Cool Modulation Refer to Table 40 on
page p. 60 for Active
M
inimums
Invalid Heat Heat Heat/
Cool
e
Note e Note e

Trane Tracer VV550 Specifications

General

Brand	Trane
Model	Tracer VV550
Category	Controller
Language	English