AIRSYS UNICOOL 28V1B5 - Page 73

System Parameters and Default Values
73
Table 5-2 Parameters in the Supply Fan Menu
Menu Screen
Option
Description
Default
Condensing Fan
Speed
Min Speed
Minimum allowed fan speed
30%
Max Speed
Maximum allowed fan speed
100%
Condensing Fan
Setting
Setpoint
Condensation pressure setpoint
391.6 psi
Deadband
Condensation pressure control deadband
21.8 psi
Cut off difference
Condenser fan shut off pressure difference
43.5 psi
HP Protect
High pressure protection
Enabled
Off Delay Time
Condenser fan delay when turning off
20s
Condensing Fan
PID
Kp
Proportional control setting
5.0
Ki
Integral control setting
120
Kd
Derivative control setting
0
Snow Setting
Wipe Snow
Snow removal functionality
Disabled
Setpoint
Snow removal temperature setpoint
28.4°F
Diff
Temp differential for snow removal
4.5°F
Fan on time
Condensing fan on time during snow removal
3 min
Fan off time
Condensing fan off time during snow removal
30 min
Table 5-3 Parameters in the EEV Menu
Menu Screen
Option
Description
Default
EEV
Enable exp. Board
Enable EEV driver
Enabled
Address
Driver address
3
New address
New Driver Address
3
Cmd. Delay
Driver instruction delay time
30ms
Timeout
Driver instruction timeout
2000ms
Enable EEV
Enable EEV
Yes
Table 5-4 EU EEV Configuration Options
Note: This menu is only available when the display is directly connected to the unit.
Menu Screen
Option
Description
Default
Enable Device
Main Refrigerant
Unit refrigerant
R410A
Enable LOP
Enable LOP control. 0/1 represents
Disabled/Enabled
1
Control Type
EEV control type
Auto
Start position
EEV start position
50%
Start Keep T
Start position holding time
60s
Total Step
Total number of steps
250