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WEBVISION™
95-7769—01 34
APPENDIX A – SUPPORTED DEVICES
This appendix provides configuration information for the
following controllers and devices:
• W7763C/D/E Chilled Ceiling Controller (CHC) ....page 34
• Constant Volume Air Handling Unit Controller
(CVAHU) ..............................................................page 43
• Fan Coil Unit Controller (FCU) ............................page 54
• Hydronic Controller (HYD) ..................................page 64
• Excel 10 Remote Input/Output Device (RIO) ......page 73
• Vacon NX Frequency Converter (NXVFD) ..........page 89
• T7350 Thermostat (T7350) .................................page 97
• Unit Ventilator (UV) .............................................page 74
• Excel 10 VAV II Controller (VAV II) ......................page 82
• XL15C Plant Controller (XL15C) .........................page 91
Configuring Chilled Ceiling
Controllers (CHC)
Description
The W7763C, D and E Controllers are Chilled Ceiling
Controllers in the Excel 10 product line. They cover a wide
range of control applications including radiators, induction
units, and fan coil units with manual fan switching, chilled
ceiling and chilled beam and are suitable for either wall
mounting or unit mounting. The controllers can operate as
stand-alone units or networked using the standard Echelon
®
L
ONWORKS bus. Interfaces are provided for a wide range of
actuator types. Heating systems can be water or electric, and
cooling systems can be chilled water supply or compressors.
Extensive timing and interlock features make the W7763
especially suitable for systems using electric heat and
compressors.
Navigating to CHC Pages
Go to the Devices tab. Expand the list of devices on the left
pane (listed under WebVision). Select a device to view its
properties.
Features
• LonMark
®
HVAC profile 8020
• Stand-alone operation or on high speed 78 kilobit LON
®
network.
• Uses Echelon LonTalk protocol.
• Direct connection of thermal actuators.
• Factory-configured default parameters.
• Wide range of supported valves and actuators.
• Available with setpoint knob for wall mounting.
• Built-in LON jack for easy network access.
• LON service pin and LED accessible without disassembly.
The W7763C, D and E are LonMark-compliant Chilled Ceiling
Controllers in the Excel 10 family product line. These
controllers provide room temperature control using different
heating and cooling sequences. The controller is provided
with default configuration settings from the factory and is fully
operable on installation. Using standard Echelon configuration
tools, the controller can be configured with job-specific
settings. The TR21 and TR23 wall modules interface with the
Chilled Ceiling Controllers and provide the following options:
setpoint adjustment, an occupancy bypass button and LED,
and an LON jack. All wall modules include a space
temperature sensor, however a remote C7068A return air
sensor can also be used.
Supported Output Types
Table 5 lists the supported output types.
Chilled Ceiling Controller Models
Table 6 lists the Chilled Ceiling Controller models.
Sequences
Heat and cool sequences can be selected to be active or not
active, giving a total of four different sequence options:
• Heat only
• Cool only
• Heat/cool changeover
• Heat and cool sequence
The controller automatically disables heat and cool control
until the window is closed again. Frost protection remains
active.
Modes of Operation
The controller has the following modes of operation:
Occupied mode This is the normal operating condition for a
room or zone when it is occupied. The controller can be
switched into this mode by a network command, by the room
occupancy sensor, or by a bypass button on the wall module.
Standby mode The standby mode saves energy by reducing
heating or cooling demand during periods where the room is
temporarily unoccupied.
Unoccupied mode This mode is used for longer unoccupied
periods, such as at night or during weekends and holidays.
Window open If the controller is configured for window open
detection, the controller automatically disables heat and cool
control until the window is closed again. Frost protection
remains active.
Frost protection If the temperature drops below 46 °F
(8 °C), the controller enables the heating circuit as frost
protection.
Table 5. Supported Output Types.
Output Options
Heating Floating, thermal, PWM, on/off, multi-stage
electric
Cooling Floating, thermal, PWM, on/off, multi-stage
compressor
Table 6. Chilled Ceiling Controller Models.
Model Inputs Outputs
Setpoint
Knob Sensor Bypass
W7763C 3 2 X X X
W7763D 4 2 X
W7763E 4 2