YORK
Start-Up & Operation Guide | 5587001-YSG-A-520
23
Start-Up
Point
Description
Writeable
Exhaust Damper % Override
Position
This input allows the exhaust damper command to be overridden to this
adjusted value when the exhaust damper % override mode point is set to
software
Y
Exhaust Damper Position for
Exhaust Fan to Turn ON
This input is the minimum threshold that must be established by the exhaust
damper or exhaust VFD before the exhaust binary output is enabled
Y
Exhaust Damper Position for
Exhaust Fan to Turn OFF
This input is the % value of the exhaust damper or exhaust VFD at which
the exhaust binary output is disabled
Y
Exhaust Flow Value
This input is the current exhaust airflow reading. This value is calculated
using the piezometer and velocity pressure sensor on the inlet of the
return fan
N
Exhaust Pickup Gain
This input is the current exhaust VP sensor gain. This value can be
adjusted in order to correct the exhaust airflow reading
Y
Exhaust Area
This input is the area of the exhaust air duct or fan cowling
Y
Building Static Pressure
See Return Fan View
N
Building Pressure Setpoint
See Return Fan View
Y
Exhaust VFD View
3
Air Balancing Mode
See Supply Fan View
Y
Unit Enable
See Supply Fan View
Y
Exhaust Fan VFD % Command
This output is the current % output to the exhaust fan VFD
N
Exhaust Fan % Override Mode
This input allows the exhaust fan VFD command to be overridden. None
= No Override, Software = Position Override from user interface or MAP,
Hardware = Manually Override From Potentiometer on Analog Input. Set
back to none to release the override command
Y
Exhaust Fan % Override Position
This input allows the exhaust fan command to be overridden to this adjusted
value when the exhaust fan % override mode point is set to software
Y
Exhaust Damper Position for
Exhaust Fan to Turn ON
See Exhaust Damper View
Y
Exhaust Damper Position for
Exhaust Fan to Turn OFF
See Exhaust Damper View
Y
Exhaust Flow Value
See Exhaust Damper View
N
Exhaust Pickup Gain
See Exhaust Damper View
Y
Exhaust Area
See Exhaust Damper View
Y
Building Static Pressure
See Return Fan View
N
Building Pressure Setpoint
See Return Fan View
Y
NOTES:
1. View only available when return fan is installed.
2. View only available if exhaust type is set to modulating damper.
3. View only available if exhaust type is set to variable frequency fan.
Table 13: Air Balancing Wizard Points (Continued)
