Networkable VAV Controller
Specification and Installation Instructions
www.neptronic.com
Page | 15
Page | 15
Temperature
The thermostat displays the temperature reading for 8 seconds. If the sensor is disconnected or short circuited, then the unit
displays the sensor's limits.
To toggle the temperature scale between ºC and ºF, press the
button.
Temperature Setpoint
To display the setpoint, press the
or
key twice. The set point appears for 5 seconds. To adjust the setpoint, press the arrow
keys while the temperature is displayed. If the setpoint adjustment has been locked, the lock symbol appears.
Air Flow and Air Supply Temperature
Press and hold the
button for 5 seconds and use the arrow keys to view the:
“
Flo
”
(airflow)
“
FOS"
(airflow setpoint)
“
dPR"
(actual damper position percent)
“
aST
(air supply temperature)
.
After 5 seconds without any action, the thermostat returns to operation mode. The air supply temperature appears only if analog
input AI1 or AI2 are configured with the AST option. The airflow and airflow setpoint only appear when in pressure independent
mode. The actual damper position percent only appear with the following standard models: EVCB14NIT0S, EVCB14NIT2S,
EVCB14NIT4S, EVCB14NDT4S, EVCB14NIT0SF, and EVCB14NIT4SF
Control Mode
To access the Control Mode, press the
button. The Control Mode appears for 5 seconds. Press the
button to scroll
through the following control modes. These options can vary depending on the options selected in "Temp Control Mode" and
"Enable OnOff Control Mode".
•
Auto (Automatic Cooling or Heating)
•
Cooling only (on, with cooling symbol)
•
Heating only (on, with heating symbol)
•
OFF (if it is not disabled in Programming Mode)
Night Set Back (NSB) or Occupancy Mode
This function is only available if you set DI1 to
nSb
(Night set back contact) or
Occ
(occupancy mode). If the DI1 contact is
triggered, the thermostat enters NSB or No Occupancy Mode (the symbol appears) and uses the NSB or OCC heating and
cooling setpoints.
If not locked, you can override the night set back or no occupancy mode for a predetermined period by pressing any of the 4
buttons. During the override period the
symbol will flash. If the
symbol
does not flash, the override period is finished or the night
set back or no occupancy override has been locked in programming mode.
Set Time and Date
1. Ensure that JP1 on the thermostat is set to run.
2. Press and hold the
button for 5 seconds
3. Use the arrow keys to set the desired value. Press the
button to save and got to the next step. Press the
button to
go to the previous step without saving.
= select / set value
Hours
12
(1-24 or 1-12 am/pm)
Minutes
00
(00-59)
Year
15
(15-99)
Set Time Display format
24
(24-hour format)
12
(AM/PM format)
Month
1
(1-12)
Day
1
(1-31)
Go to “PrSs"
Local Time
Local Date
Local Time
Local Date
Local Date
