Johnson Controls TEC2664Z-3 BACnet - Page 22

TEC2664Z-3 BACnet® MS/TP Rooftop Controller for Stand-Alone and Networked Zoning Systems
Installation Instructions
22
Sequence of Operation
Figure 20: Heating/Cooling Stages Handling
FIG:htng_clng
Figure 21: Bypass Damper Sequence
Start
G Fan Output = On
Bypass Damper Output
Based on Static Pressure
Input
No
Yes
Bypass Damper Loop = Disabled
Bypass Damper Position = 100% Forced Open = 10 VDC
Exit
Exit
F
I
G
:
b
y
p
s
_
d
m
p
r
Figure 22: System Mode and Fan Operation
FIG:sys
tm_mde_fn_oprtn