Carrier VVT 33ZCVVTZC-01 Installation, Start-Up And Configuration Instructions page 58

LEGEND
CCMR — Cooling Setpoint
DCV — Demand Control Ventilation
DCVD — DCV Damper Output
DMD — Zone Demand
DMPPOS — Damper Position
HCMR — Heat Setpoint
SPT — Space Temperature
[System Mode] — Current System Mode
TC_DPOS — Temperature Control Damper Output
NO Is DCV
active?
YES
NO
Is DCVD > [COOL ] Min Ouput?
YES
[COOL ]Min Output = DCVD
TC_D POS =
[System Mode] Min
Position
Hold Damper
3V™ Zone Controller Temperature Control Damper Logic
Lo c al DMD =
NO
L ocal DMD =
TC_DPOS=0
Error = CCMR - SPT
Integral Term = (Error x Integral Gain) + Previous Integral Term
Proportional Term = Error x Proportional Gain
Derivative Term = (Error - Previous Error) x Derivative Gain
TC _D POS =Proportional Term + Integral Term + Derivative Term + Starting Value
TC_DPOS<[System Mode] Min Output
YES
TC_DPOS>[System Mode] Max Output
Previous Error = Error
Previous Integral Term = Integral Term
Limit suchthat:
Minimum Output <
YES Current DMPPOS =
TC_D POS 6 .2 5%?
Current DMPPOS <
TC_D POS - 6 .25%?
NO Current DMPPOS >
TC_D POS + 6.25 %?
Enter
YES
heat?
NO
Error = HCMR - SPT
cool?
YES
YES
Is DCV
active?
NO
or
NO
< Maximum Output
TC_DPOS
+ _
NO
YES
NO
Open Damper
YES
Close Damper
Exit
58
NO
Is DCVD > [COOL ] Min Ouput?
YES
[COOL] Min Output = DCVD