Climate Controller With BACnet MS/TP Communication
The SRC-200 series controllers have been designed for climate control of room spaces. Applications include Fan Coil Unit Control, Chilled Ceiling and Zone Heating Control, VAV applications and in Natural Ventilation applications.
The SRC-200 series controllers have been designed for climate control of room spaces. The SRC-200 controllers can be used in wide range of applications including Fan Coil Unit Control, Chilled Ceiling and Zone Heating Control, VAV applications and in Natural Ventilation applications.
The controllers have 2 heating and 2 cooling stage control for temperature. All stages are fully configurable to 4 x 0..10Vdc outputs and 2 24Vac triac outputs.
The controllers have built-in accurate temperature measurement, and an external resistive NTC10 temperature sensor input as standard. With the -RI2 option it is possible to add a second NTC10 sensor input. When the -RI2 option is installed, the controllers are supplied with the push button setpoint.
Optional built-in CO2 sensor provides a unique solution for fan assisted and natural vetilation applications. Only one enclosure required!
Optional built-in relative humidity RH sensors allows room space humidity also be controlled accurately.
The controllers have 4 analogue 0..10Vdc outputs and two digital outputs that can be configured for any of the temperature heating stages, CO2 control, Maximum VAV Demand Control, Fan Speed Control, Maximum Fan Control or Humidity Controler. The controllers can operate as Proportional Only or as Proportional + Integral Controllers and all ouptuts can be reversed.
The digital outputs can be configured as 3-point, PWM (thermic) or On/Off control.
The controller setpoint can be adjusted -/+3°C (default) by rotating the potentiometer. The setpoint centre and setpoint limits can be adjusted via the configuration tool or via the communication network. Alternatively with the -SPB option the setpoint knob is replaced by two push buttons. With the push buttons it is possible to adhjust the current setpoint, and it also can be reset by the BMS e.g. every morning.
The further optional backlit push button allows the users easily to override the selected control output to fully open position. This can be used, for example, to override the windows open or boost the fan speed. The push button has built-in timer and blue backlight for status indication.
With -AI1 and -AI2 options it is possible to monitor 0-10V signals such as pressure and flow sensors. The AI1 0-10V input can also be linked to the auxiliary control loop to provide additional plant control.
Built-in display shows the system status with clear indication and can also be used for alarm display of CO2, temperature and/or humidity (white, amber, red).
The BACnet communication supports automatic device and point discovery making the controller configuration as a part of the BACnet system fast, simple and efficient.
- Wide Range of Applications; Fan Coil Unit Control, VAV Control, Chilled Ceilings, Zone Heating, Natural Ventilation
- Up to 2 Heating and up to 2 Cooling stages
- CO2 Measurement and Control Option
- Relative Humidity Measurement Control Option
- Backlight Push Button Override Option (overrides the selected output to 100%)
- BACnet MS/TP Communication with Support for Device Discovery
- Address and Baud Rate Setting via Bit switch or via the Configuration Software
- Built-In Temperature Sensor
- External Auto-Detecting NTC10 Temperature Sensor (RI1)
- Optional Additional External Temperature Sensor (RI2)
- Optional 0-10V Voltage Measurement and Control instead of the Resistive Inputs
- Backlit LCD display for temperature, setpoint, CO2, humidity, valve position, fan speed, heating/cooling mode, night/day mode, alarm display
- Rotary knob for the setpoint adjustment
- Configuration via SW-DCT-USB Windows based configuration tool
- Power Supply: 24Vac/dc
- Outputs: 4 Analogue 0..10Vdc Outputs Configurable to Any of the Stages
- Outputs: 2 Digital 24Vac Triac Outputs; Configurable for On/Off, PWM (Thermic) and 3-Point Control
- Inputs: 2 Digital Inputs for Day Override (e.g. occupancy sensor), Night Override (e.g. window switch) or Cooling Disable (condensation switch)
- Protocol: BACnet MS/TP Communication
- Interface: RS485, maximum 63 devices
- Addressing: 0..63 via a bit switch; 0..247 via tool / network
- Communication: 9k6/19k2/38k4/76k8 Baud; Parity None/Even/Odd, 1 or 2 Stop
- Temperature: 0°C...+50°C (32..122°F)
- Humidity: 0...95%rh (non-cond.)
- Standards CE: Conformity CE Directive 2004/108/EY EN61000-6-3: 2001 (Generic Emission) EN61000-6-1: 2001 (Generic Immunity)
- Degree of Protection: IP20
- Housing: ABS Plastics, Self Extinguishing
- Dimensions: W86 x H120 x D29mm
Dispatch
In-stock orders are dispatched within 2 business days.
Shipping options
We deliver across Australia and internationally by any of the following methods:
- Australia Post Express
- Australia Post Parcel Post
- DHL
- FedEx (only international)
- Freight account. We'll email packaging dimensions when the shipment is ready to be book.
*Transit times vary depending on the shipping method and destination.
Store Pickup - Carrum Downs, Victoria, 3201
Order before 11am to collect after 2pm the same day. Mon–Fri, 9am–5pm, excludes public holidays.
RETURNS
How to return an item Contact us before sending anything back. Email info@oceancontrols.com.au or call +61 3 9708 2390. We'll confirm eligibility and guide you to the return process.
Return window 14 days from dispatch date.
Condition required Items must be unused and in original packaging, including all documentation and manuals.
Restocking fee A 20% restocking fee applies to all accepted returns. Return shipping costs are the customer's responsibility.
Non-returnable items
- Custom-made or specially imported products
- Software licences (some software have trial versions available)
- Items not in original, as-new condition
WARRANTY
How to make a warranty claim Before returning anything, please contact us. Our engineers can often resolve the issue remotely. If a return is required, our team will provide you with a warranty form to include with the goods.
What's covered Defects in materials and workmanship under normal use and correct installation.
What's not covered The warranty does not cover damage or failures caused by factors outside our control, including incorrect installation, unauthorised alterations or modifications, or any installation or use not recommended by the manufacturer.
Standard warranty All products carry a 12-month warranty from the date of purchase unless stated otherwise.
Extended warranty
- Labjack: 5 Years
- Atop: 5 Years
- MeanWell: 3 Years
- Teracom: 3 Years
- Novus: 3 Years











