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Carrier - Carrier Comfort Network (CCN)  


Secondary Control Units
Date Last Saved: 12/5/2005 3:52:09 PM

Product Name(s): ComfortLink
Product Description: A factory mounted secondary control unit equipped with application specific software. Features a scrolling marquee read-out and four large buttons for maneuvering through menu options. Provides diagnostic information such as temperature, pressure, compressor cycles, and unit run time hours. Also accepts input from CO2 sensors and smoke detectors. A hand-held Navigator can be used for added service flexibility.
Product Application(s): Used on rooftop units and air cooled chillers. Communicates with the Carrier Comfort Network (CCN) at 38.4 kilobaud, allowing remote monitoring via the internet.
Point Quantity Characteristics
Analog Input (AI): 11 Varies Based on Application
Digital Input (DI): 11 Varies Based on Application
Universal Input (AI or DI): -
Analog Output (AO): -
Digital Output (DO): 11 Varies Based on Application
Universal Output (UO): -
Other: -
A/D Converter Resolution
8 bit
10 bit
12 bit
16 bit
D/A Converter Resolution
6 bit
8 bit
10 bit
No Analog Output
HOA switches provided on each output?
Note: These are also available as an add-on from 3rd party vendors.
Both AO and DO
DO Only
Indicating status LED on each output?
AO and DO
AO Only
DO Only
Integral Flow Sensor?
Integral Damper Actuator?
Can controller accept occupant override from thermostat?
Can controller accept occupancy sensor input?
Expander Boards
Expansion Device Model #AIDIUIDOAOUOOther
Rooftop Control Board 6 6 0 6 1 0 1
Economizer Control Board 6 6 0 6 1 0 1
Staged Gas Control Board 10 0 0 5 2 0 0
Eneegy Management Module 6 7 0 0 0 0 0
Network Ports, Protocol(s), and Speed(s) Supported
(Note: See 'Architecture' for network details)
CCB Bus: Proprietary @ up to 38.4 kbps (peer-to-peer)

LEN Bus: Local Equipment Proprietary @38.4 kbps (peer-to-peer)
External Communication Ports, Speeds and Access Devices EIA (through RJ14 interface) to local PC (laptop or workstation) @ 38.4 kbps
Additional Information (Optional)
Network Accessing Capabilities via Controller
Access controller only
Access controller plus additional controllers on network segment / LAN
Access all controllers on system
No access available on this controller
Controller Access Devices
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted)
Handheld Interface Device (proprietary device)
PDA (3rd-Party HID)
Zone-Based port (details below)
Zone-Based Interface Access EIA-485 interface through RJ14 connector of all Carrier space sensors. Interface is through Laptop PC running proprietary software.
Zone Interface Hardware
Zone-Mounted touchpad (thermostat or stand-alone display)
HID (proprietary device)
PDA (3rd party HID, with software)
*Note: This section covers the capabilities for accessing the controller or other parts of the network from the controller (i.e. 'bottom-up').
Standard access functionality is covered in the Architecture and Software sections.
**Does NOT include front-end OI functions. See vendor for specific functions available.
Functions Available Through Field Interface**:View ParamsChange ParamsChange
O&M SupportTAB/Cx Support
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted)
Handheld Interface Device (proprietary device)
PDA (3rd-Party HID)
Zone-Based port (details below)
Microprocessor(s) Information not provided
Clock Type
Powered, battery-backed
Battery powered
Powered, no battery backing
Clock Synchronization Via network
Volatile Memory (RAM) Capacity Information not provided
Volatile Memory (RAM) Uses
RAM use unrestricted
RAM use restricted as shown below
Information Not Provided
Program Execution / Calculation storage
Data / Trends / Alarms storage
Configuration / Parameter storage
Control Programming storage
Is Volatile Memory Supported By Battery? YES
Battery Type(s) Super-Capacitor
Battery Life NA
Backup Battery Operating Time Information not provided
Non-Volatile Memory Capacity (EEPROM/Flash)* Information not provided
Non-Volatile Memory Uses
Data / Trends / Alarms / Calculation Storage
Configuration / Parameter Storage
Control Programming Storage
Controller Operating System
Additional Information
* Items in NV memory are not lost upon power or battery failure. Other types of NV memory such as EPROM, NOVROM, etc. do not directly impact system performance.
Can trend data be stored in this controller? No
How many total trend values can be stored? NA
What is the controllers role in trending? Controller
Can controller be programmed to 'push' data to archive or are trends 'pulled' from controller? No
When full, does controller automatically send up trend data, overwrite data, or stop logging data? NA
Programming Method(s) Pre-programmed sequences are configured using templates
Resident vs Non-Resident Program Execution Pre-programmed routines are resident in controller. Additional functionality available through non-resident software Option Modules
Resident/Supervisory. This controller supervises the scheduling of other controllers.
Resident/Stand Alone. This controller contains its own schedule.
Non-Resident. This controller is dependent upon another controller for its schedule.
None. This controller has no scheduling features.
Resident Energy Management
Energy management algorithms for this controller can be custom programmed
Pre-programmed/built-in algorithms available, and are fully editable using custom programming
Pre-Programmed/built-in with limited editing via template-based programming
Controller is not typically used for energy management functions
Specific Pre-Programmed Algorithms Available
None (custom programming only)
None (not applicable)
Optimal Start/Optimal Stop
Peak Demand Limiting/Load Shedding
Economizer (enthalpy, dry-bulb, CO2, modulating/2-position, etc.)
Additional Energy Management functions are resident at SI
Additional Programming Functions
DDC Loops (P, PI, PID) PID
Automatic PID Tuning Feature Not provided. Fast trends (1 sec) are available to facilitate manual tuning.
Automatical-Dial Alarm Support Available at the system level only through optional Telink (Autodial Gateway) and Remote Communications device. Not available at the controller level.
Does controller perform multiple retries and buffer/store alarm until connection is made? Yes
Are multiple destinations possible? Yes
Upon controller power loss or hardware failure:
Are network communications affected? No
Is loss recognized on/by the network and alarm reported? Yes
DO and AO response?
Outputs fail to a user pre-specified position
Outputs fail to a normal (unpowered) position
Outputs fail to last position
Volatile memory functions?
Retained for life of backup battery
Upon restoration of power does the controller:
Auto-reboot without operator intervention? Yes. A power failure restart routine is provided which allows the controller to resume full operation without operator intervention if within the specified 72 hour backup period.
Automatically reset/synchronize the clock? Yes
Update all monitored functions? Yes
Generate an alarm if backup battery is dead? Yes
Upon network or communications failure does controller:
Continue to operate standalone? Yes
Operate with last global settings or user-specified value? N.A.
Do broken network segments continue to communicate within the remaining segment?
(Note: May depend on proper termination of segments for higher speed networks.)
Does network automatically reconfigure upon restoration? Yes
Does network store 'loss of communications' alarm with time of event? Yes
Additional Information (optional)
Self Test Diagnostics
Does controller have internal self-test diagnostics to check:
Processor failure? No
Internal hardware failure? Yes
Open/shortened sensor? Yes
Others? Has on-board self-test diagnostics to automatically generate alarms due to malfunctions and exceeded system operating parameters. Controller also performs a range of common sensor diagnostics
Control Enclosure Unit mounted. Varies based on applicaton.
Power Supply Required
Voltage 24
VA 40
Surge Protection Field provided
Underwriters Laboratories UL 873
FCC Part 15, Sub-Part B, Class A
LonMark Certified
No - but LonWorks compatible
Information not provided
BACnet (BTL) Certified
Not submitted for testing
Information not provided