Discharge Air; Cooling Discharge Air Control Pid; Temperature - Carrier Omnizone 50BVC Installation, Start-Up, Service And Controls Operation And Troubleshooting

Click the [PREV] softkey to return to the Home screen or click
the [DAT] softkey to access the DISCHARGE AIR screen. See
Table 48 for screen function information.
Table 48 — Outside Air Reset Screen Functions
FIELD / KEY
Outside Air Temperature
(non-adjustable)
Outside Air Temp Sensor
(adjustable)
Outside Air Temp Reset
(adjustable)
Outside Air Temp Reset
Temp
(adjustable)
[Prev]
[DAT]

DISCHARGE AIR

Access: OUTSIDE AIR RESET screen, [DAT] softkey
The Discharge Air screen (see Fig. 63) allows the user to view the
effective discharge air setpoint and the discharge air temperature.
It also allows the user to change the discharge air temperature set-
point and offset.
Fig. 63 — Discharge Air Screen
Click the [PREV] softkey to return to the Outside Air Rest
screen or click the [CLG PID] softkey to access the Cooling
Discharge Air Control PID screen. See Table 49 for screen func-
tion information.
Table 49 — Discharge Air Screen Functions
FIELD / KEY
Effective Disch Air Setpoint
(non-adjustable)
Discharge Air Temperature
(non-adjustable)
Discharge Air Temp
Setpoint
(adjustable)
Disch Air Temp Sensor
Offset
(adjustable)
[Prev]
[CLG PID]
FUNCTION / INFORMATION
Displays the current outside air

temperature

Displays the current reset sensor.
Options are:
RAT Sensor
BAS RAT
Displays the current type of reset sensor.
Options are:
Single
Multiple
Displays the current reset temperature
setting
Softkey access to previous screen
Softkey access to discharge air tempera-
ture screen
FUNCTION / INFORMATION
Displays the current discharge air setpoint
based on any resets
Displays the current discharge air
temperature
Displays the current discharge air setpoint
less any resets
Displays the current discharge air sensor
offset value
Softkey access to previous screen
Softkey access to cooling PID settings

COOLING DISCHARGE AIR CONTROL PID

Access: Discharge Air screen, [CLG PID] softkey
The Cooling Discharge Air Control PID screen (see Fig. 64) al-
lows the user to change the Cooling Sample Time, Proportional,
Integral and Derivative gains plus the Loop dead band and the
Ramp Interval. Care should be taken before changing any settings
on this screen.
Fig. 64 — Cooling Discharge Air Control PID Screen
Click the [PREV] softkey to return to the Discharge Air screen.
See Table 50 for screen function information.
Table 50 — Cooling Discharge Air Control PID
Screen Functions
FIELD / KEY
Cooling SAMPLE TIME
(adjustable)
Cooling P GAIN
(adjustable)
Cooling I GAIN
(adjustable)
Cooling D GAIN
(adjustable)
Cooling LOOP DEADBAND
(adjustable)
Cooling RAMP INTERVAL
(adjustable)
[Prev]
TEMPERATURE
Access: Home Screen
The Temperature screen (see Fig. 65) allows the user to view the
supply air, outside air, leaving water and entering water
temperatures.
Fig. 65 — Temperature Screen
Click the [PREV] softkey to return to the Home screen or click
the [Stpt] softkey to access the Temperature Setpoint screen.
See Table 51 for screen function information.
63
FUNCTION / INFORMATION
Shows the current Sample Time
Shows the current Proportional Gain
Shows the current Integral Gain
Displays the current Derivative Gain
Displays the current Loop Deadband
Displays the current Cooling Ramp
Interval
Softkey access to previous screen