Pre-Built Applications for BAScontrol

Pre-Built Sedona Application Selection Guides

Pre-Built applications make it easy to utilize Contemporary Controls' BACnet/IP and MS/TP Sedona Unitary controllers in constant volume air-handling, fan coil, and heat pump applications.

Although all controller models are freely programmable using Sedona as the control language, they can be made into configurable controllers by installing one of the pre-built applications found in the following selection guides.

• Constant Volume Air Handlers
• 2-Pipe or 4-Pipe Fan Coils
• Constant Volume Heat Pumps

Each pre-built application is fully supported with complete documentation. Using the BAScontrol Toolset, the systems integrator can modify the sequence and the underlaying control code to meet the needs of the application. Once developed and tested, a complete project backup can be made using BASbackup.

Constant Volume Air Handlers

Contemporary Controls has replaced the constant volume CvRTU series of pre-built applications with a new CvAHU series which includes three new macros—Staged Heat/Cool, Wall Setter, and Economizer. The targeted constant volume applications have not changed.

Not all AHU applications are the same, so several application versions exist based upon a modular design where only those sub-systems necessary for specific applications are used. Intended for constant volume (Cv) supply fan applications, the series supports one or two-stages of direct expansion (DX) cooling, one or two-stages of gas or electric heating, and analog heating or cooling. Optional provisions include powered exhaust (PE) with or without variable speed fan motor, air-filter status, local occupancy switch/sensor, fixed or CO2 demand control ventilation (DCV), and dry-bulb or enthalpy control of economizer.

Constant Volume Air Handlers
Controller Model Air Handler Application	Supply Fan	Powered Exhaust	Cooling	Heating	Economizer	Ventilation
BASC-22R, CR, DR, SR CvAHU1	Single speed	Single speed or variable speed	CHW analog	HW analog	Single/dual dry bulb or single enthalpy	Fixed (%) or demand control DCV – CO2 sense
BASC-22R, CR, DR, SR CvAHU2	Single speed	Single speed or variable speed	DX single or dual stage	Electric or gas single or dual stage	Single/dual dry bulb or single enthalpy	Fixed (%) or demand control DCV – CO2 sense
BASC-22R, CR, DR, SR CvAHU3	Single speed	Single speed or variable speed	DX single or dual stage	Electric or gas single or dual stage	Single/dual dry bulb or single enthalpy	Fixed (%) No DCV
BASC-22R, CR, DR, SR CvAHU4	Single speed	None or barometric	DX single or dual stage	Electric or gas single or dual stage	Single/dual dry bulb or single enthalpy	Fixed (%) No DCV
BASC-22R, CR, DR, SR CvAHU5	Single speed	None or barometric	DX single or dual stage or CHW analog	Electric or gas single or dual stage or HW analog	None	None

Occupied/unoccupied modes are supported by commands from a BACnet client, local occupancy sensor or switch, or a temporary occupied push button. Operating modes are standby, ventilation, heating, and cooling. If an analog wall-setter is present, local setpoint control is invoked, otherwise network control from a BACnet client is used. Configurable settings are managed via a common web browser using custom Sedona components called web components (WC). The reading and writing of BACnet points is accomplished with custom Sedona components called virtual components (VT).

2-Pipe or 4-Pipe Fan Coils

One of the most common HVAC applications is the fan coil. There are three applications that support a 20-point controller, a 22-point controller, and 12-point cloud connected controller. The supply fan can be single speed, multi-speed, or variable speed. Dependent upon the piping, the fan coil can be dedicated to either chilled water cooling or hot water heating, or simultaneous heating and cooling. There is a choice of modulating or staged heating/cooling up to two stages. An output exists for binary ventilation control.

2-Pipe or 4-Pipe Fan Coils
Controller Model Fan Coil Application	Supply Fan	Powered Exhaust	Cooling	Heating	Economizer	Ventilation
BASC-20R, CR, T FCU1	Single speed DO or variable speed AO	None	CHW analog	HW analog and dual stage DO	None	Fixed % two-position spring return
BASC-22R, CR, DR, SR FCU2	1, 2, 3 speed DO or variable speed AO	None	CHW analog	HW analog and dual stage DO	None	Fixed % two-position spring return
BASCPI-E6U4R2A FCU3	Single speed DO	None	CHW analog	HW analog and dual stage DO	None	Fixed % two-position spring return

Constant Volume Heat Pumps

For a decarbonization strategy, heat pumps are attractive. There are four possible applications with the fourth one designed for a 20-point controller. All are intended for a single-speed supply fan. The exhaust port can be barometric, powered, or none at all. There is a single stage of DX heating or cooling. If auxiliary heating is required in colder climates, it can be accomplished with modulating or dual-staged heating. An output exists for binary ventilation control.

Constant Volume Heat Pumps
Controller Model Heat Pump Application	Supply Fan	Powered Exhaust	DX Cooling/Heating	Auxiliary Heating	Economizer	Ventilation
BASC-22R, CR, DR, SR HeatPumpHP1	Single speed	Single speed or variable speed	Single stage	Dual stage DO and 0-10vdc AO	Single/dual dry bulb or single enthalpy	Fixed (%) or demand control DCV - CO2 Sense
BASC-22R, CR, DR, SR HeatPumpHP2	Single speed	None or barometric	Single stage	Dual stage DO and 0-10vdc AO	Single/dual dry bulb or single/dual enthalpy	Fixed (%) No DCV
BASC-22R, CR, DR, SR HeatPumpHP3	Single speed	None	Single stage	Dual stage DO and 0-10vdc AO	None	None
BASC-20R, CR, T HeatPumpHP4	Single speed	None	Single stage	Single stage DO and 0-10vdc AO	None	None

Application Package Contents

Each of the application versions is delivered as a zip file via download. The zip file contains all the documentation, schematics and application files needed to implement the project. Each zip file contains enough information to assist in making a controls submittal and implementing the HVAC sequence. The contents of the package can be customized to handle most constant volume applications. Questions regarding the sequences can be directed to Contemporary Controls' technical support. The following documents are provided in each zip file:

• Application Notes — A Word document that contains useful information on implementing the application and configuring the points.
• System Schematic — A .pdf file, and dxf version that contains the schematic (frequently called the "H" diagram) which documents the air-flow and identifies the location of the sensors and actuators required to implement the sequence.
• Points List — An Excel file that lists the BACnet names, variable types, BACnet object IDs, the Sedona tags, and a notes field with relevant information about the point. All real and virtual BACnet points along with web component points are listed. This file can be edited.
• Sequence of Operation (SOO) — A Word document that provides a programmer's SOO making references to some of the BACnet and Sedona tags used in the application. This document can be edited if necessary.
• Wiring Diagram — A .pdf file that contains a sample wiring diagram which includes wiring between sensors, actuators, and a controller to assist in control panel design.

Each application zip file contains a nested BASbackup zip file that bundles the Sedona application.

• BASbackup file — A zip file that captures the complete project. It includes BACnet configuration data, web component configuration data, controller configuration data, and the actual Sedona application. When using BASbackup, click the "Choose File" button and select the zip file named such as "BASc22 CvAHUx Backup.zip." Do not unzip this file, BASbackup uses it in zip format.

For more installation instructions, please read the BAScontrol Applications Reference Manual.

The Generic CvAHU, FCU, and HeatPumpHP application packages are free to systems integrators and controls contractors who register with Contemporary Controls attesting that they are skilled in implementing HVAC sequences in programmable controllers and understand that the sequences are provided as-is and that Contemporary Controls makes no guarantee that the sequences are suitable for any AHU application. The responsibility for suitability rests with the systems integrator and controls contractor.