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VV550; VV551

Secondary Control Units
VAV Controllers
Date Last Saved: 9/15/2005 4:24:29 PM

Product Name(s): VV550; VV551
Product Description: The VV550/VV551 is a variable air volume (VAV) controller that provides single-duct digital control for VAV boxes. • VV550: factory installed • VV551: field installed
Product Application(s): The VV550/VV551 VAV controller supports single duct VAV control sequences for space temperature control, flow tracking, and ventilation control.
Point Quantity Characteristics
Analog Input (AI): See below • Thermistor
• Resistive
• Differential Pressure
Digital Input (DI): See below Dry Contact
Universal Input (AI or DI): N.A.
Analog Output (AO): N.A.
Digital Output (DO): See below Triac 24 VAC @ 12 VA
Universal Output (UO): N.A.
Other: N.A.
Control Unit Model #:AIDIUIDOAOUOOther
VV550 4 1 5
VV551 4 1 5
A/D Converter Resolution
8 bit
10 bit
12 bit
16 bit
Other Information not provided
D/A Converter Resolution
6 bit
8 bit
10 bit
No Analog Output
Other
HOA switches provided on each output?
Note: These are also available as an add-on from 3rd party vendors.
No
Both AO and DO
DO Only
Other
Indicating status LED on each output?
No
AO and DO
AO Only
DO Only
Other
Integral Flow Sensor? Yes. A pressure transducer measures from 0" - 2" w.c. (0 to 498 Pa)
Integral Damper Actuator? Yes
Can controller accept occupant override from thermostat? Yes. Occupant override can be performed on compatible zone thermostats.
Can controller accept occupancy sensor input? Yes
Expander Boards N.A.
Network Ports, Protocol(s), and Speed(s) Supported
(Note: See 'Architecture' for network details)
(1) - LonTalk TP/FT -10 @ 78.6 Kbps
External Communication Ports, Speeds and Access Devices (1) - Rover Service tool
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
Other
Controller Access Devices
Laptop/PC
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted)
Handheld Interface Device (proprietary device)
PDA (3rd-Party HID)
Zone-Based port (details below)
Other
Zone-Based Interface Access Zone sensor
Zone Interface Hardware
Zone-Mounted touchpad (thermostat or stand-alone display)
HID (proprietary device)
PDA (3rd party HID, with software)
Laptop/PC
none
Other
*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
Programs/Logic
O&M SupportTAB/Cx Support
Laptop/PC
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted)
Handheld Interface Device (proprietary device)
PDA (3rd-Party HID)
Zone-Based port (details below)
Other
Microprocessor(s) Information not provided
Clock Type
Powered, battery-backed
Battery powered
Powered, no battery backing
None
Other
Clock Synchronization N.A.
Volatile Memory (RAM) Capacity N.A.
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
Others
Is Volatile Memory Supported By Battery? N.A.
Battery Type(s) None
Battery Life N.A.
Backup Battery Operating Time N.A.
Non-Volatile Memory Capacity (EEPROM/Flash)* N.A.
Non-Volatile Memory Uses
Data / Trends / Alarms / Calculation Storage
Configuration / Parameter Storage
Control Programming Storage
Controller Operating System
Other
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? None
What is the controllers role in trending? Provide data to SI unit for trending
Can controller be programmed to 'push' data to archive or are trends 'pulled' from controller? Yes, pushes data to SI
When full, does controller automatically send up trend data, overwrite data, or stop logging data? N.A.
Programming Method(s) N.A.
Resident vs Non-Resident Program Execution N.A.
Scheduling
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.
Other
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
Others
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.)
Other
Additional Energy Management functions are resident at SI
Additional Programming Functions
DDC Loops (P, PI, PID) PI
Automatic PID Tuning Feature N.A.
Automatical-Dial Alarm Support N.A.
Does controller perform multiple retries and buffer/store alarm until connection is made? N.A.
Are multiple destinations possible? N.A.
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
Other
Volatile memory functions?
Lost
Retained for life of backup battery
Other
Upon restoration of power does the controller:
Auto-reboot without operator intervention? Yes
Automatically reset/synchronize the clock? N.A.
Update all monitored functions? Yes
Generate an alarm if backup battery is dead? N.A.
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.)
Yes
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? N.A.
Others? N.A.
 
Control Enclosure NEMA-1 sheet metal
Power Supply Required
Voltage 18 - 32 VAC (24 VAC nominal)
VA 4 VA per controller + 12 VA per output utilized
Surge Protection Meets CE surge requirements for industrial environments
Underwriters Laboratories VV550:
• UL 873 and CSA C22.2 No. 24-93: Temperature Indicating and Regulating Equipment

VV551:
• UL and C-UL 916, Energy management equipment
• UL 94-5V (UL flammability rating for plenum use)
FCC VV551: Part 15, Class A
CE CE Marked
LonMark Certified
Yes Version 3.3
No
No - but LonWorks compatible
Information not provided
BACnet (BTL) Certified
Yes
No
Not submitted for testing
Information not provided
Other