Taco CLAR-ASC-1 Clarity 3 Programmable Controller Instruction Manual

: June 4, 2024
: TACO

Taco CLAR-ASC-1 Clarity 3 Programmable Controller

DESCRIPTION

Taco Clarity3™ ASC series controllers are designed to operate unitary and terminal equipment. The integrated alarming, scheduling, and trending enable these BACnet Advanced Application Controllers to be powerful edge devices for the modern smart building ecosystem.
The factory-supplied programming covers common unitary applications. The controllers feature simple, menu-driven setup choices using an NS-100/200series digital sensor, which can be installed permanently as the room sensor or used temporarily as a technician’s service tool.
Alternately, quick configuration of controller properties can be done using NFC (Near Field Communication) from a smart phone, tablet, or computer (using TacoVision Lite™ app) while the controller is unpowered.
The Ethernet-enabled models can also be configured by connecting an HTML5-compatible web browser to the built-in configuration web pages.
To meet the most demanding building automation custom requirements, these controllers are also fully programmable. Custom configuration and programming, with wizards for application programming selection/configuration, are enabled by Taco Vision software.
The Taco Programming software additionally provide the capability of creating custom graphical web pages (hosted on a remote web server) to use as a custom user-interface for the controllers.

APPLICATIONS

Can be used with the following types of unitary equipment:

Air handling units (AHU)
Chilled beams
Constant air volume (CAV) with external actuator
Fan coil units (FCU)
Heat pump units (HPU)
Roof top units (RTU)
Unit ventilators
Variable air volume (VAV) with external actuator
(Some applications require custom programming. See also Sample Installation on page 5.)

MODELS

SPECIFICATIONS

DIMENSIONS

A| 6.744 inches| 171 mm| D| 6.000 inches| 152 mm
B| 5.500 inches| 140 mm| E| 1.500 inches| 38 mm
C| 5.000 inches| 127 mm| F| 6.279 inches| 159 mm

Inputs and Outputs

Inputs, Universal (6 on Terminal Blocks)

Universal inputs Configurable as analog, binary, or accumulator objects
Termination 1K and 10K ohm sensors, 0–12 VDC, or 0–20 mA (without need for an external resistor)
Resolution 16-bit analog-to-digital conversion
Protection Overvoltage protection (24 VAC, continuous)
Wire size 12–24 AWG, copper, in removable screw terminal blocks

Input, Dedicated Room Sensor Port

Connector Modular connector for STE-9xx1 series digital wall sensors or STE- 6010/6014/6017 analog temperature sensors
Cable Uses standard Ethernet patch cable up to 150 feet (45 meters)

Input, Integrated Air Pressure Sensor (BAC-9311)

Pressure range 0 to 2″ wc (0 to 500 Pa)
Sensor accuracy ±4.5% of the reading or (when near zero) 0.0008″ wc (0.2 Pa), whichever is greater (@ 25° C); internally linearized and temperature compensated
Connections Barbed for 1/4 inch FR tubing

Outputs, Universal (4 on Terminal Blocks)

Universal outputs Configurable as an analog (0 to 12 VDC) or binary object (0 or 12 VDC, on/off)
Power/protection Each short-circuit protected universal output capable of driving up to 100 mA (at 0–12 VDC) or 100 mA total for all outputs
Resolution 12-bit digital-to-analog conversion
Wire size 12–24 AWG, copper, in removable screw terminal blocks

Outputs, Triac (6 Binary)

Triac outputs Optically isolated zero-crossing triac output configured as a binary object
Power Maximum switching 24 VAC at 1.0 A for each output; maximum total for controller is 3.0 A
Wire size 12–24 AWG, copper, in removable screw terminal blocks

Communication Ports

MS/TP (optional) One EIA-485 port (removable terminal block) for BACnet MS/TP, operating at 9.6, 19.2, 38.4, 57.6, or 76.8 kilobaud; max. length of up to 4,000 feet (1,200 meters) of 18 AWG shielded twisted-pair, no more than 51 pf/ft (167 pf/m); use repeaters for longer distances Ethernet (optional) On “E” models only, two 10/100BaseT Ethernet connectors for BACnet IP, Foreign Device, and Ethernet 802.3 (ISO 8802-3); segmentation supported; up to 328 ft (100 m) between controllers (using T568B Category 5 or better cable)
NFC NFC (Near Field Communication) up to 1 inch (2.54 cm) from the top of the enclosure
Room sensor Modular STE connection jack for STE-9000 series digital sensors and STE-6010/6014/6017 analog sensors
Auxiliary One serial port with mini Type B connector (reserved for future use)

Configurability

OBJECTS*	MAXIMUM #
Inputs and Outputs
Analog, binary, or accumulator input	8 for

CLAR-ASC-1

| 9 for

CLAR-ASC-1DP

of default objects depends on the selected application. See also

the PIC statement for all supported BACnet objects.

Configuring, Programming, and Designing

Hardware Features

Processor, Memory, and Clock

Processor 32-bit ARM® Cortex-M4
Memory Programs and configuration parameters are stored in nonvolatile memory; auto restart on power failure
RTC Real time clock with (capacitor) power backup for 72 hours (“C” model only) for network time synchronization or full stand-alone operation

Indicators and Isolation

LED indicators Power/status and MS/TP communication or Ethernet status
MS/TP bulbs One network bulb assembly indicates reversed polarity and isolates circuit
Switch EOL (end of line) for MS/TP

Installation

Power

Supply voltage 24 VAC (50/60 Hz) or 24 VDC; –15%, +20%; Class 2 only; non-supervised (all circuits, including supply voltage, are power limited circuits)
Required power 8 VA, plus external loads
Wire size 12–24 AWG, copper, in a removable screw terminal block

Enclosure and Mounting

Weight 14 ounces (0.4 kg)
Case material Green and black flame retardant plastic
Mounting Direct mounting to panels or on DIN rails

Environmental Limits

Operating 32 to 120° F (0 to 49° C)
Shipping –40 to 160° F (–40 to 71° C)
Humidity 0 to 95% relative humidity (non‑condensing)

Warranty, Protocol, and Approvals

Warranty
Taco Limited Warranty 5 years (from mfg. date code)

BACnet Protocol

Standard: Meets or exceeds the specifications in ANSI/ASHRAE BACnet Standard 135-2010 for Advanced Application Controllers
Type: BTL-certified as a B-AAC controller type

Regulatory Approvals

UL UL 916 Energy Management Equip-ment listed
CE CE compliant
RoHS 2 RoHS 2 compliant (pending)
FCC FCC Class A, Part 15, Subpart B and complies with Canadian ICES-003 Class A*

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. (NFC operation meets FCC compliance while the controller is in an unpowered state.)

ACCESSORIES

NOTE: For accessory details, see the respective product data sheets and installation guides.

Network Communications

Room Sensors, Analog

CLAR-RS-W Temperature sensor, white
CLAR-RS-W-SP Sensor with rotary setpoint dial, white Sensor with rotary setpoint dial and
CLAR-RS-W-SP/OR override button, white

Room Sensors, Digital (LCD Display)

NS-100/200 Series Taco Clarity NetSensor digital room temp. sensors for viewing and configuration and optional humidity, occupancy, and CO2 sensing (see STE-9000 series data sheet for op-tions)
HPO-9001 NetSensor distribution module (future release)

SUPPORT

Additional resources for installation, configuration, application, operation, programming, upgrading, and much more are available on the web at www.tacocomfort.com.