A variety of hardware models are available, with different
power supplies.
Page 6 provides a detailed overview of the available models.
Select the model fitting your particular needs.
The application can be downloaded into the Excel 12's
FLASH memory.
Honeywell's LNS™ plug-in allows you to configure the
application to match your specific requirements (e.g. light
switching or constant light control [depending upon the
availability of daylight and/or the occupancy state]; sunblind
up/down depending upon daylight, occupancy, and wind
speed).
The Excel 12 Fan Coil Unit (FCU) + Light + Sunblind
application encompasses the entire room, including one fan
coil unit, two lights, and one sunblind.
The application is delivered together with the plug-in and must
be downloaded into the Excel 12 controller's flash memory
during start-up. Regardless of the given Excel 12 model, the
user has the option of choosing from among the many
different available Excel 12 applications. The user can
customize the application using Honeywell's LNS™ plug-in
with CARE or any LNS™ tool (e.g. LonMaker for Windows™).
Customizations can be saved / reloaded for easy
configuration of multiple devices.
Application Overview
One Fan-Coil Unit:
¾ Two sequences configurable for HEAT, COOL, and
CHANGEOVER.
¾ Support of thermal actuators, floating actuators, PWM,
0...10 Vdc, and staged output via triac outputs or relay
outputs.
¾ 3-stage fan via triac outputs or relay outputs.
¾ Binary inputs for condensation, occupancy sensor,
window contact, etc.
Two Lights:
¾ ON / OFF switching dependent on:
• Occupancy sensor.
• Three effective occupancy modes (occupied / standby
/ unoccupied). Effective occupancy is determined on
the basis of the occupancy sensor, the schedule, and
override input (if any).
• Light level (determined on the basis of data received
via the L
sensor).
• Manual switching (via hardwired switches or
L
¾ Dimming / constant light control for two lights with just one
sensor. Dimming / constant light control is performed via
analog outputs (this requires an HFD [High-Frequency
Device] for dimming with 1...10 Vdc input).
One Sunblind:
¾ Positioning dependent on:
• The effective occupancy mode (occupied / standby /
unoccupied) determined by occupancy sensor, the
schedule, and override input (if any).
• Light level (determined on the basis of data received
via the L
• Manual command.
• Building supervisor command.
¾ Safety position dependent on:
• Frost / rain from weather station or XL500, etc.
• Wind speed (determined on the basis of data received
via the L
• Open windows (determined on the basis of data
received via the L
hardwired sensor) inhibit moving of sunblind.
ONWORKS® network or read from a hardwired
ONWORKS® wall module).
ONWORKS® network).
ONWORKS® network).
ONWORKS® network or read from a
Occupancy Modes:
¾Occupied mode: The Excel 12 operates according to the
"occupied" heating and cooling set-points.
¾Bypass: After the bypass button of a hardwired wall
module has been pressed or when corresponding data is
received via the L
ONWORKS® network, the Excel 12
operates temporarily according to the "occupied" heating
and cooling set-points. When the bypass time has
elapsed, the controller reverts to the previous mode. The
bypass time can be configured via plug-in.
¾Standby mode: The Excel 12 operates according to the
"standby" heating and cooling set-points.
¾Unoccupied mode: The Excel 12 operates according to
the "unoccupied" heating and cooling set-points.
¾Occupancy sensor: The occupancy sensor is used for
FCU, light, and sunblind control. Hardwired and
L
ONWORKS® occupancy sensors are supported. The
occupancy sensor determines the effective occupancy
mode during scheduled occupied periods. Depending
upon the actual occupancy sensor state, the effective
mode will be either "occupied" or "standby."