Excel 12
INTEGRATED ROOM CONTROL SOLUTIONS: FCU + LIGHT + SUNBLIND
PRODUCT DATA
FEATURES
Three-in-one controller for HVAC, Light, and Sunblind applications reduces hardware costs and engineering effort (one LONWORKS® node instead of three).
Additional energy savings due to integrated room control, e.g. use of sunlight to heat unoccupied rooms.
Increased comfort due to automatic light and sunblind control depending on available light and occupancy.
LonMark® certified.
Flash memory for downloading applications (thus increasing flexibility and facilitating future upgrading).
Easily-accessible service button and service LED.
DIN rail (wiring cabinet / fuse box) mounting and wallmounting supported.
230 Vac, 100 Vac, or 24 Vac power supply (depending upon model).
Optional terminal protection covers for wall mounting.Optional swivel label holders for wiring information.
2-wire FTT-10A LONWORKS® bus interface.
Application can be configured to user-specific needs via LNS™-based plug-in.
SUNBLIND
Light
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LIGHT SENSOR |
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WINDOW 
CONTACT 
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ON/OFF |
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HVAC |
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HEATING |
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COOLING |
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ON/OFF |
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VENTILATION
WALL MODULE
OCCUPANCY
CONDENSATION
Fig. 1. Functional overview
® U.S. Registered Trademark
Copyright © 2010 Honeywell Inc. • All Rights Reserved
GENERAL
Excel 12 controllers are LONMARK® certified devices, and can thus be used in all open LONWORKS® environments.
Excel 12 supports the following LONMARK® objects:
1 Node Object (LONMARK® object #0).
1 Space Comfort Controller Fan Coil Object (profile #8501).
2 Lamp Actuator Objects (profile #3040).
1 Occupancy Sensor Object (profile #1060).
1 Sunblind Actuator Object (object #4).
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 unit'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 controller is designed for maintained zones.
EN0B-0367GE51 R0110
EXCEL 12 FCU + LIGHT + SUNBLIND
APPLICATION
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 unit'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:
Two sequences configurable for HEAT, COOL, and CHANGEOVER.
Support of thermal actuators, floating actuators, PWM, 0...10 Vdc, and staged output via triac outputs or relay outputs.
3-stage fan via triac outputs or relay outputs.
Binary inputs for condensation, occupancy sensor, window contact, etc.
Two Lights:
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 LONWORKS® network or read from a hardwired sensor).
Manual switching (via hardwired switches or LONWORKS® wall module).
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:
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 LONWORKS® network).
Manual command.
Building supervisor command.
Safety position dependent on:
Frost / rain from weather station or XL500, etc.
Wind speed (determined on the basis of data received via the LONWORKS® network).
Open windows (determined on the basis of data received via the LONWORKS® network or read from a hardwired sensor) inhibit moving of sunblind.
Occupancy Modes:
Occupied mode: The Excel 12 operates according to the "occupied" heating and cooling set-points.
Bypass: After the bypass button of a hardwired wall module has been pressed or when corresponding data is received via the LONWORKS® 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.
Standby mode: The Excel 12 operates according to the "standby" heating and cooling set-points.
Unoccupied mode: The Excel 12 operates according to the "unoccupied" heating and cooling set-points.
Occupancy sensor: The occupancy sensor is used for FCU, light, and sunblind control. Hardwired and LONWORKS® 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."
Wall Modules:
LONWORKS® wall modules.
Hardwired wall modules (e.g. T7460, T7560).
Wireless wall modules (e.g. W7070+T7270 or RT7070).
Master / Slave Functionality:
The master / slave functionality allows easy adaptation to changed room usage.
nviEnergyHoldOff
SEQUENCE 0, POSITION *1
SEQUENCE 1, POSITION *1
master |
slave |
nvoEnergyHoldOff |
Excel 12 FANSPEED, POSITION *2 |
Excel 12 |
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OCCUPANCY MODE |
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HEATING/COOLING POSITION *3 |
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WINDOW CONTACT
*1: ONLY IF SEQUENCE IS CONFIGURED *2: ONLY IF FAN IS CONFIGURED
*3: ONLY IF CHANGEOVER SEQUENCE IS CONFIGURED
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SLAVE |
nvoSequence [0] |
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nviSequence [0] |
nvoSequence [1] |
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nviSequence [1] |
nvoFanSpeed |
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nvoFanSpeedCmd |
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nvoEffectOcc |
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nviOccManCmd |
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nvoHeatCool |
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nviApplicMode |
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nvoEnergyHoldOff
THIS NV ALWAYS BINDS THE MASTER XL12 TO THE FINAL SLAVE XL12.
WINDOW CONTACT
slave nviEnergyHoldOff
Excel 12
WINDOW CONTACT
Fig. 2. Master/slave functionality and window contact
EN0B-0367GE51 R0110 |
2 |
EXCEL 12 FCU + LIGHT + SUNBLIND
master |
nvoLampValue |
nviLampValue |
slave |
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LIGHT |
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nviLampValue |
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Fig. 3. All lights switched via master pushbutton
NOTE: Binding via LONWORKS results in a short delay between the switching of the different lamps.
nviLampValue |
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master |
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nvoLampValue |
nviLampValue |
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nvoLampValue |
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THIS NV ALWAYS BINDS THE MASTER XL12 TO THE FINAL SLAVE XL12. |
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LIGHT
Fig. 4. All lights switched on via any pushbutton
NOTE: This binding shall not be used for applications involving dimming or constant light control. Binding via LONWORKS results in a short delay between the switching of the different lamps. Pressing the pushbutton repeatedly and rapidly may cause toggle effects.
master |
nvoSblndSetting |
nviSblndSetting |
slave |
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LIGHT |
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nviSblndSetting |
slave |
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Excel 12 |
Fig. 5. All sunblinds controlled via master pushbuttons
NOTE: Binding via LONWORKS results in a short delay between the switching of the different sunblinds.
Benefits of Integrated Room Control
The Excel 12's light management functionality provides you with a number of significant advantages:
Considerable Reduction in Energy Consumption:
25...75% savings on electrical energy consumption for illumination.
Decreased heat generated by electric lights or incoming solar radiation (by closing sunblind), thus reducing cooling energy requirements.
Decreased electrical energy consumption due to constant light control (see section "Constant Light Control" on page 7).
Sunlight can be used to heat the room (sunblind up) if the room is unoccupied and to avoid unnecessary cooling demands (sunblind down), as needed.
Increased Convenience:
Occupancy sensor switches the light ON/OFF automatically.
Constant light control always provides the correct lighting.
The sunblind is lowered if the current outdoor light level exceeds a configurable limit and is raised if the current light outdoor level drops below the desired limit, or in case of strong winds.
Usage styles (e.g. presentation, working, etc.) can be configured in conjunction with the Web Office Console.
Wireless control via ZAPP (see ZAPP System Engineering, EN0B-0286GE51).
Increased Flexibility:
Flexible room usage if a LONWORKS® wall module or ZAPP (wireless remote control) is used.
Reduced Engineering Effort / Expenses:
Just one LONWORKS® node (instead of three) is required to cover HVAC, Light, and Sunblind.
reduced engineering and installation effort (e.g. wiring, binding, commissioning, etc.)
lower cost due to reduced number of LNS™ credits
lower hardware total loop costs
Interoperability
See also section “Approvals, Certifications, and Standards” on page 8.
Device Configuration
The controller is configured using Honeywell's LNS™ plug-in. The plug-in can be started from CARE 4.0 or any LNS™ tool (e.g. LonMaker for Windows™).
LONMARK® Objects Network Variables
The Excel 12 supports the following LONMARK® objects:
1 node object (see Fig. 8)
1 space comfort controller object (#8501 SCC – Fan Coil) (see Fig. 6)
2 lamp actuator objects (#3040) (see Fig. 9)
1 occupancy sensor object (#1060) (see Fig. 7)
1 sunblind / closed-loop actuator object (#4) (see Fig. 10). Insofar as a generally agreed-upon LonMark® object is not yet available, sunblind control is achieved in a generic fashion.
See also Table 6 through Table 10 in section "Network Interface" on page 8.
3 |
EN0B-0367GE51 R0110 |
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