TEC26x7-2 Series BACnet® MS/TP Networked Thermostats with Two Outputs Installation Instructions 17
Table 4: Selection Options for Sequence of Operation in Four-Pipe Applications
Selection
Option
Control
Curve
Terminal Numbers Used (See Table 1 and Figure 5.)
On/Off Control Floating Control Proportional
0to10VDC Control
(0): Cooling Only See Figure 20. 10: Normally Open
(N.O.) Cooling
11: Normally Closed
(N.C.) Cooling
10: Open Cooling
11: Closed Cooling
10: Proportional Cooling
(1): Heating Only See Figure 21. 8: N.O. Heating
9: N.C. Heating
8: Open Heating
9: Closed Heating
9: Proportional Heating
(2): Cooling and Reheat See Figure 22. 6 and 7: Reheat
10: N.O. Cooling
11: N.C. Cooling
6 and 7: Reheat
10: Open Cooling
11: Closed Cooling
6 and 7: Reheat
10: Proportional Cooling
(3): Heating and Reheat See Figure 23. 6 and 7: Reheat
8: N.O. Heating
9: N.C. Heating
6 and 7: Reheat
8: Open Heating
9: Closed Heating
6 and 7: Reheat
9: Proportional Heating
(4): Cool/Heat Four-Pipe See Figure 24. 8: N.O. Heating
9: N.C. Heating
10: N.O. Cooling
11: N.C. Cooling
8: Open Heating
9: Closed Heating
10: Open Cooling
11: Closed Cooling
9: Proportional Heating
10: Proportional Cooling
(5): Cool/Heat Four-Pipe
and Reheat
See Figure 25. 6 and 7: Reheat
8: N.O. Heating
9: N.C. Heating
10: N.O. Cooling
11: N.C. Cooling
6 and 7: Reheat
8: Open Heating
9: Closed Heating
10: Open Cooling
11: Closed Cooling
6 and 7: Reheat
9: Proportional Heating
10: Proportional Cooling
Figure 20: Cooling Only,
Two- or Four-Pipe Applications
Temperature Increase
(Increments of 1F°/0.5C°)
Device Closed
Cooling Setpoint
Device Opened
On/Off, Floating,
or Proportional
Output
F
I
G
:
c
l
n
g
_
n
l
y
Figure 21: Heating Only,
Two- or Four-Pipe Applications
Temperature Increase
(Increments of 1F°/0.5C°)
Device Closed
Heating Setpoint
Device Opened
On/Off, Floating,
or Proportional
Output
F
I
G
:
h
t
n
g
_
n
l
y
Figure 22: Cooling with Reheat,
Two- or Four-Pipe Applications
Temperature Increase
(Increments of 1F°/0.5C°)
Heating Setpoint
Device
Closed
Cooling Setpoint
Device
Opened
F
I
G
:
c
l
n
g
_
w
t
h
_
r
h
t
Deadband
Reheat
On/Off, Floating,
or Proportional
Outputs
Heating Output
Cooling Output
Off
Off
On
On