Presentation on Neptronic VAV boxes and controls

2. • Established in 1976
• Design and manufacture innovative HVAC products
• HQ and manufacturing facility (80,000 sq ft) located in Montreal
• Over 250 dedicated employees

3. Worldwide Presence
Office Locations
 Montreal, Canada
 Oregon, USA
 Dubaï, UAE
 Singapore
And Worldwide Distribution Network

4. Vertical Integration
Entire manufacturing chain under one roof
• Research and development
• Software and firmware design
• Electronic and mechanical hardware design
• Circuit board manufacturing
• Sheet metal cutting and welding
• Electro-mechanical assembly and manufacturing
• Product testing
• Quality control
• Packaging and Shipping
• Sales and Support

5. • Arista (Bengaluru, India)
• Juniper (Bengaluru, India)
• SAP Labs (Bengaluru, India)
• LEWES (Bengaluru, India)
• South Beach Road Residences (Singapore)
• Ng Teng Fong General Hospital (Singapore)
• Halliburton (Singapore)
• Seagate Technologies (Singapore)
• Fusionopolis (Singapore)
• UOB Centre (Singapore)
• National Gallery in London (UK)
• Canadian Center of Architecture (Canada)
• Bombardier (Canada)
• Princess Noura Bint Abdulrahman University (Saudi Arabia)

6. Product Lines

8. EVCB
VAV and Room Controller
EFCB
Fan Coil and Room Controller
TUCB/TFCB
Fan Coil Room Thermostat
TROB
VAV Room Thermostat

9. VAV Controllers

10. • BACnet/Modbus® ASC Application Specific Controller
• Native BACnet MSTP/Modbus RTU Integration
• IP Integration using a Router
• Built-in actuator
• Standard 8Nm (70 in.lb.)
• Optional 20Nm (180 in.lb.)
• Interchangeable Actuator for Special applications (fast
acting, fail safe applications)
• 0-1” On board True differential pressure sensor
Controller Specifications

11. • Outputs: 2 analog and up to 4 TRIACs
• Inputs: 2 analog and 2 digital
• 3 wire connection between VAV Controller &
Thermostat
• Communicating type of LCD thermostat with built in
Commissioning capabilities as standard
• USB port on t-stat to tap into the BACnet® network
locally
• UL Certified Actuators
• Damper Position Feedback through BACnet,
Potentiometer based feedback as an option.
Controller Specifications

12. • Multiple options to set MAC address
• On-board Dip switches
• Thermostat Menu
• Configurable Device Instance
• Copy configuration from one VAV controller to an
identical set of controllers in the MSTP loop
• Support of auto baud rate; Selectable baud rate
options of 9.6kbps, 19.2kbps, 38.4 kbps, 76.8 kbps
• View Differential Pressure reading on the thermostat or
BACnet
Controller Specifications

13. • Temperature Only
• Temperature & Humidity*
• Temperature, Humidity* and Co2
* Humidity is for monitoring purposes only as the humidity control has to be done at the supply AHU.
• Monitor Differential Pressure Reading on Thermostat. Allows
accurate air balancing and calibration of the unit
• Monitor current air flow and air flow set point on the thermostat to
determine operation of the unit
• Display current mode and cooling demand output to indicate the
output of the PID loop
• Indicates any error in air flow reading with an “!” Mark on
thermostat
Thermostat Features

14. • Selectable logic for Cooling, Cooling with Reheat, Heating,
Auto mode control strategies.
• Built in program ready for Energy saving, External Temp
Sensor, Room Tracking control, Heater, Co2, Fan Powered
Logic Applications, Dual Duct
• From Thermostat - Monitor Current air flow, override
damper position for air balancing, enter K factor, min and
max flow, flow calibration and other commissioning
activities
Logic & Integration Options

15. • Field selectable BACnet & Modbus Communication
capabilities across entire product range
• BACnet COV support
• Real Time Clock across entire product range
• Support for BACnet Scheduler
• Boot loader for firmware upgrades over BACnet

16. BACnet® Single Duct Series
• BACnet Controller
• On board differential pressure
sensor
• Outputs: 2 analog and 4 optional
Triac
• Inputs: 2 analog and 2 digital
• Integrated 8Nm Actuator
• Commissioning capabilities from
thermostat

17. BACnet® Dual Duct Series
• Master Controller
• On board differential pressure
sensor
• Outputs: 2 analog and 3 TRIACs
• Inputs: 2 analog and 2 digital
• Slave Controller
• On board differential pressure
sensor
• 1 analog input and 1 analog
output

18. BACnet® Fan Powered Box Series

19. • Following strategies are built into the controller for enhanced energy saving
functions
• Use Onboard DI to trigger occupancy status from occupancy sensor of Lighting
System
• Use BACnet Object to trigger occupancy status from BMS through high level
interface with a Room Management System or Outlook integration*
• Use Onboard Co2 sensor for Indoor Air Quality (IAQ) purposes
Control Strategies for Energy Saving & IAQ

20. Wiring Requirement
• Dry contact of occupancy sensor in room is wired to DI of the EVCB VAV Controller
Operation
• When there is no occupancy in the room, VAV setpoint is automatically set to a higher value e.g. 27 deg
C. This forces the VAV to go to minimum air flow position, thereby providing significant energy saving
while maintaining IAQ in the room.
• When occupancy is sensed, the VAV setpoint is reset automatically to the operating value e.g. 23 deg c
which then allows the VAV to operate in the normal state providing comfort to the occupants of the room.
User Override
• If at any point, the occupancy sensor output is not available, the user can press any button on the
thermostat to change the mode to occupied for a pre-defined interval of time to a maximum pre-defined
time limit.

21. Integration Requirement
• Request to change occupancy status is issued from a Room Management System/Outlook Booking System to the
BMS server through High Level Interface.
• BMS server is connected to the VAV through any open protocol through a router or gateway
Operation
• In a pre-defined interval of time (e.g. 10 mins), the RMS or Booking System will send a command to the BMS server to
request occupancy of a specific VAV in the zone where a meeting is booked.
• The BMS server will initiate a write to switch the VAV from UnOccupied mode to Occupied Mode so that the room can be
comfortably cooled by the time the participants arrive into the room.
• Once the scheduled meeting is over, the RMS sends a command to request release to unoccupied mode which is carried
out by the BMS server.
User Override
• If at any point, the meeting is extended and the occupants do not use the RMS to book the room which can request an
extension of the ACMV services, the user can press any button on the thermostat to change the mode to occupied for a pre-
defined interval of time to a maximum pre-defined time limit.

22. Wiring Requirement
• Strategy 1 - Wire an Analog Output or a Digital Output to a secondary fresh air damper to allow
fresh air into the zone when CO2 level is exceeded.
• Strategy 2 – Wire an external sensor to measure CO2 in the supply duct
Operation – Strategy 1 - Cooling VAV Application
• When the CO2 level in the room exceeds the setpoint, the EVCB VAV controller commands a secondary
damper to open to maximum to allow fresh air into the zone to bring down the Co2 level.
• Simultaneously the primary damper is modulating to control the air into the space.
• When Co2 level drops, the secondary damper closes fully and the primary damper takes control.
• The Co2 level can also be fed back to the BMS to display on the graphic and take corrective actions at
the supply AHU to bring down the Co2 level in the supply duct.

23. Wiring Requirement
• Strategy 1 - Wire an Analog Output or a Digital Output to a secondary fresh air damper to allow
fresh air into the zone when CO2 level is exceeded.
• Strategy 2 – Wire an external sensor to measure CO2 in the supply duct
Operation – Strategy 2 - Fresh Air VAV Application
• The primary damper is set to Co2 logic. When the Co2 level exceeds the setpoint, the VAV opens fully to
bring down the Co2 level and maintain indoor air quality in the zone.
• When the Co2 level drops back to normal, the VAV will be closed to only allow minimum desired fresh air
into the space.

24. • Additional Wiring for Co2 Sensor (3 core cable for power
and signal) for installation right at the start.
• Not all manufacturers provide on-board IO’s for an
additional Co2 sensor input as a standard.
• Conventional method by placing the Co2 sensor in the
return duct.
• In ductless return systems, it is difficult to ascertain the
zone or room that had a higher Co2 level.
• Placing Co2 sensor in supply duct is not recommended
as it is redundant with the Co2 sensor on the main
supply duct of the AHU and there is not much corrective
action possible at the VAV level

25. • No additional wiring required. Thermostat has
built in Co2 sensor.
• Upwards compatible i.e. the thermostat with
Co2 can be added in new rooms without
additional cabling or installation works.
• Can be used in ductless return system to
accurately identify the zone or room with high
Co2 level.
• Different control strategies are possible at the
VAV to maintain IAQ in the zone/room.

26. • Simple Commissioning Tool to check health of communication line and
quickly deploy the project requirements or changes in the design.
• Key Features
• Change MAC address & Device Instance from Tool
• Create Packages for different box sizes and types (Cooling/ Heating/ Cooling with Reheat/
CAV/ FPT)
• Modify configuration over the BACnet MSTP network
• Use as a Balancing Tool

29. Two MAC addressing options (DIP switch or Menu)
Auto device instance configuration and baud rate detection
Copy configuration
Firmware upgrade via BACnet
Schedules
Service display address (EVCB / EFCB)
Neptronic B-ASC Benefits

30. Let’s Talk About
BACnet® and Neptronic

31.  We are an active member of BACnet® International
 All Neptronic BACnet® products are BTL certified
(BACnet® Testing Laboratories)
 We are BACnet® MS/TP over RS-485 2-wire cable, twisted-shielded
(BACnet IP Summer 2013)
 Baud rate can be set to one of the following: 9600, 19200,
38400 or 76800 bps

32. 1. Two MAC addressing options
-Controller and/or Thermostat
2. Auto device instance configuration
3. Auto baud rate detection
4. Copy configuration
5. Service display address (EVC / EFC)

33. 1. Two MAC addressing options
1 - DIP switch MAC addressing is
always priority vs Thermostat
addressing
OFF ON
1
2
4
16
32
64
8
EOL

34. As you set the MAC address, the controller
automatically sets the Device Instance (D.I.)
MAC Address: 21
Default Device
Instance (D.I.): 153000
Automatic D.I. 153021
2- Auto device instance configuration

35. Controller « listens » & identifies the
network’s baud rate and sets it’s speed
accordingly (9,6/19,2/38,4/76,8Kb)
MS/TP Network @ « X Kb » Speed
3- Auto Baud Rate Detection

36. VAV 1 Profile type:
• 1 Changeover remote sensor input
• 1 Reheat on/off Output HW Valve
• 1 Reheat TPM Output (Duct heater)
VAV 2
VAV 3
VAV 4
VAV 5
VAV 6
4- Copy Configuration
VAV 1
A Single profile or application can be
pushed to similar Zone Controllers

37. Push globally and not pull
individually to similar
information to identical
controllers.
4- Copy Configuration

38. Helps you identify a specific controller on a
given network
5- Service Display Address:

39. Overview
• Seamless integration and interoperability
• Real-time information management and control
• Low costs and high value
• Diverse control strategies
• Higher energy conservation

40. • Proven integration with different systems on BACnet MSTP
& IP such as,
• Tridium
• Schneider
• Honeywell
• Sauter
• Iconics Scada
• Johnson Controls