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Networkable Dual Duct VAV Controller 

Specification and Installation Instructions 

 

www.neptronic.com 

EVCBM 

– Dual Duct 

Page | 14

 

Menu 757 

– Airflow Balance Mode 

1.  This menu is accessible through normal operation mode. Set the thermostat Mode Selector 

jumper (JP1) to the “RUN” position (Operation Mode). Refer to Wiring on page 6.  

1.  Press the 

 /

]

 and 

  

keys simultaneously for 5 seconds. The 

“Enter Password”

 screen appears. 

2.  Enter the password 

(757)

 within 1 minute by using the arrow keys to increase or decrease the value and the 

 /

]

 and 

 

 keys to toggle between the digits.  

3.  If

 

you enter the wrong password, the thermostat displays “

Eror

” and returns to Operation Mode. The thermostat will return to normal mode if you navigate through the entire 

menu and do not make any selection, or if you do not press any key for 5 minutes. The changed values will be saved automatically. 

 

 

Summary of Contents for EVCBM14NIT2S

Page 1: ...s inputs and outputs Built in actuator 70 lb in Control external actuators using analog 0 10Vdc adjustable On board differential pressure sensor Select direction on analog outputs Simple air balancing and commissioning via thermostat Configurable PI Proportional Integral function Independent configurable proportional control band and dead band per ramp Selectable internal or external temperature s...

Page 2: ...TRIAC output on off pulse or 1 floating output Real Time Clock Real time clock RTC with super capacitor backup approximately 3 days BACnet BACnet MS TP 9600 19200 38400 or 76800 bps B ASC Modbus Modbus RTU slave 9600 19200 38400 or 57600 Selectable configuration No parity 2 stop bit Even parity 1 stop bit Odd parity 1 stop bit Communication connection 24 AWG twisted shield cable Belden 9841 or equ...

Page 3: ...frared NDIR Sensor Range 0 to 2000 ppm Setpoint range 100 to 2000 ppm Accuracy 30 ppm 3 of reading Response time 2 minutes by 90 Display resolution 1 ppm Other Electrical connection 3 wires to VAV controller and 2 wires to BACnet Modbus network 0 8 mm2 18 AWG minimum Network service port Mini USB connector Power supply 24Vac Power consumption 1VA Operating temperature 0ºC to 50ºC 32ºF to 122ºF Sto...

Page 4: ...oling Heating Fan BACnet or Modbus Address DIP Switch DS1 MAC address for communication are selectable by DIP switch using binary logic If you do not change device instance in program mode it will be automatically modified according to the MAC address Note Avoid using addresses above 246 when selecting Modbus MAC address MAC Address DS 1 1 DS 2 2 DS 3 4 DS 4 8 DS 5 16 DS 6 32 DS 7 64 DS 8 128 Defa...

Page 5: ...wall anchors and screws supplied Make the appropriate connections E Mount the control module on the base and secure using the screw TDU CAUTION Remove power to avoid a risk of malfunction A Remove the wall mounting plate highlighted from the back of the thermostat B Install the mounting plate on the gang box C Pull the wires through the base hole and make the appropriate connections D Mount the th...

Page 6: ...verride normally cool heat DI1 OCC open close NSB open close 3 2 1 COM 24Vac input TO2 TO1 TO1 4 TO2 2 TRIAC outputs config Cool 1 or 2 heat 1 or 2 CO2 On Off config close open percent Floating config float time Pulse heat only Direct or reverse 3 2 1 Data COM Pwr 3 2 1 COM A in B in 5 4 A out B out To other BACnet devices High Total Pressure Low Static Pressure TXD RXD JP3 EOL JP1 TO1 TO2 input v...

Page 7: ...ermostats However the action key or the key used to access the menus and save changes is different in the thermostats Use the following menu overviews with the appropriate action key as per your thermostat Action Keys on Thermostat Action Key Task TRL24 TDU Press to access the programming menus and save any changes Press to return to the previous step without saving Mode Selector Jumper RUN Operat...

Page 8: ...Networkable Dual Duct VAV Controller Specification and Installation Instructions www neptronic com EVCBM Dual Duct Page 8 Pressure Inputs Menu 1 of 4 Pressure and Inputs AI1 AI2 DI1 DI2 ...

Page 9: ...Networkable Dual Duct VAV Controller Specification and Installation Instructions www neptronic com EVCBM Dual Duct Page 9 Outputs Menu 2 of 4 TO1 TO2 AO1 AO2 ...

Page 10: ...Networkable Dual Duct VAV Controller Specification and Installation Instructions www neptronic com EVCBM Dual Duct Page 10 Settings Menu 3 of 4 Temp Motor Settings and Ramps ...

Page 11: ...Networkable Dual Duct VAV Controller Specification and Installation Instructions www neptronic com EVCBM Dual Duct Page 11 Settings Menu 4 of 4 Network Time and Options ...

Page 12: ...ou navigate through the entire menu and do not make any selection or if you do not press any key for 5 minutes The changed values will be saved automatically 1 Intern Temp Sensor Offset Range Offset Increment 10 to 40ºC 50 to 104ºF Max 5ºC 0 1ºC 0 2ºF Compare the displayed temperature reading with a known value from a thermometer To offset or calibrate the sensor use the arrows key to set the desi...

Page 13: ... to the Action Keys on Thermostat section to know and use the key as available on your thermostat 1 Press the and keys simultaneously for 5 seconds The Enter Password screen appears 2 Enter the password within 1 minute by using the arrow keys to increase or decrease the value and and keys to toggle between the digits a Password 637 Network Settings Menu 3 If you enter the wrong password the thermo...

Page 14: ...ss the and keys simultaneously for 5 seconds The Enter Password screen appears 2 Enter the password 757 within 1 minute by using the arrow keys to increase or decrease the value and the and keys to toggle between the digits 3 If you enter the wrong password the thermostat displays Eror and returns to Operation Mode The thermostat will return to normal mode if you navigate through the entire menu a...

Page 15: ...temperature for 8 sec and then room humidity for 2 sec requires Humidity sensor thermostats Toggle between Airflow 1 master Airflow 2 slave Airflow 1 setpoint master Airflow 2 setpoint slave Air supply temp Exits after 5 sec C Actual demand Room temperature Appears if in Night Setback NSB or Occupancy OCC mode Flashes if overridden by user RH Alternates between room temperature for 8 sec and then ...

Page 16: ...nit displays the sensor s limit Airflow and Air Supply Temperature Press and hold the key for 5 seconds and use the arrow keys to view the airflow 1 master airflow 2 slave airflow Setpnt 1 master airflow Setpnt 2 slave and air Supply Temp 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 wit...

Page 17: ...Notes ...

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Page 20: ... need to find the nearest Neptronic authorized distributor please consult www neptronic com 400 Lebeau blvd Montreal Qc H4N 1R6 Canada www neptronic com Toll free in North America 1 800 361 2308 Tel 514 333 1433 Fax 514 333 3163 Customer service fax 514 333 1091 Monday to Friday 8 00am to 5 00pm Eastern time ...

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