Titus BAC-8007, BAC-8207 User Manual

Titus Alpha

BAC-8007, BAC-8207

Dual-Duct VAV Controllers

Installation Guide

BAC-8007 and BAC-8207 VAV Controllers

Section 1

About the controllers

Specifications ........................................................................................................................5

Safety considerations .......................................................................................................... 7

Section 2

Installing the controller

Setting the rotation limits ................................................................................................. ..9

Mounting ............................................................................................................................ ..9

Connecting inputs .............................................................................................................11

Connecting outputs ........................................................................................................... 13

Connecting to sensors ....................................................................................................... 15

Connecting to an MS/TP network .................................................................................. 16

Connecting an airflow sensor .......................................................................................... 19

Connecting power .............................................................................................................19

Dual-duct connections ...................................................................................................... 21

Section 3

Setting up dual-duct controllers

Network communications ................................................................................................ 22

Setting temperature setpoints .......................................................................................... 23

Setting airflow setpoints ................................................................................................... 24

Setting the VAV terminal unit parameters .................................................................... 25

Setting up local lighting control ...................................................................................... 26

Balancing airflow ............................................................................................................... 26

SECTION 1

About the controllers

This section provides a description of the Titus Alpha BAC-8007 and BAC-8207 VAV controllers. It also introduces safety information. Review this material before installing or operating the controllers.

BAC-8007 and BAC-8207

The designed for VAV terminal units. An integrated actuator and the supplied programs make these ideal controllers for temperature setback, overrides, reheat and other HVAC sequences. Install these versatile controllers in stand-alone environments or networked to other BACnet devices. As part of a complete facilities management system, the provide precise monitoring and control of connected points.

are native BACnet, direct digital controllers

BAC-8007 and BAC-8207

BACnet MS/TP compliant Standard VAV control sequences are incorporated to provide pressure independent control of a dual-duct VAV unit to control heating and cooling On-board airflow sensor for use with a single or multi-point differential pressure measuring station or pitot tube. Control indoor air quality and local lighting

controllers

Specifications

Analog inputs All inputs are configured as analog:

Active inputs 2 Passive inputs 4 Air flow sensor 1 Actuator position 1 Key features Standard units of measure.

Overvoltage input protection

Connector Spade connectors, 0.25 inch Conversion 12–bit analog–to–digital conversion Input range 0–12 volts DC

About the controllers

Specifications

Outputs, analog 2

Key features Output short protection

Configured as BACnet analog objects. Standard units of measure

Connector Spade connectors, 0.25 inch Conversion 12–bit analog–to–digital conversion Output voltage 0–10 volts DC Output current 30 mA per output, 30 mA total for all analog

outputs

Outputs, binary 4 triacs for external equipment

2 for the internal actuator

Key features Optically isolated triac output Conversion 12–bit analog–to–digital conversion Connector Spade connectors, 0.25 inch Output range Maximum switching 24 VAC at 3 amperes

Communications

BACnet MS/TP EIA–485 operating at rates up to 76.8 kilobaud.

Removable screw terminal block. Wire size 12–24 AWG

Sensor jack RJ-45 jack compatible with model STE-8000 and

STE-6000 models with RJ-45 jacks

Supported objects See PIC statement for supported BACnet objects

Control Basic 5 program areas in BAC-8007

6 program areas in BAC-8207

PID loop objects 8 Value objects 60 analog, 32 binary, and 12 multistate

Memory Programs and program parameters are stored in

nonvolatile memory. Auto restart on power failure

Applications programs

Titus Controls supply the BAC-8x07 with programming sequences for dual-duct VAV applications:

Dual-duct VAV heating and cooling Monitor CO2 to control indoor air quality Control local lighting with motion sensing Fan control Balancing UL 864 smoke controll (BAC-8207 only)

BAC-8007 and BAC-8207 VAV Controllers About the controllers

Specifications

Air flow sensor features Configured as BACnet analog input object.

CMOS differential pressure 0-2 inches of water (0-500 Pa) measurement range. Internally linearized and temperature compensated. Span accuracy 4.5% of reading. Barbed connections for 1/4 FR tubing. Range dependent upon DP pickup, tubing size/ length and connections.

Actuator specifications

Torque 40 in-lb. (4.5 N

•

Angular rotation 0 to 95°

Adjustable end stops at 45° and 60° rotation

Motor timing, BAC-8007 90 sec./90° at 60 Hz

108 sec./90° at 50 Hz

Motor timing, BAC-8207 60sec./90° at 60 Hz

72 sec./90° at 50 Hz

Shaft size Directly mounts on 3/8 to 5/8 inch (9.5 to 16 mm)

round or 3/8 to 7/16 inch (9.5 to 11 mm) square damper shafts.

Regulatory UL 916 Energy Management Equipment

FCC Class B, Part 15, Subpart B BACnet Testing Laboratory listed as an application specific controller (ASC). UL 864 smoke controls (BAC-8207 only)

Installation

Supply voltage 24 volts AC, -15%, +20% 5 VA Weight 13.2 ounces (376 grams) Case material Flame retardant plastic

Environmental limits

Operating 32 to 120° Shipping –40 to 140°

F (0 to 49° C)

F (–40 to 60° C)

Humidity 5–95% relative humidity (non-condensing)

Models

BAC-8007 Dual-duct VAV controller with 90 second actuator BAC-8207 Dual-duct VAV controller with 60 second actuator

and UL 864 smoke control application

About the controllers

Specifications

Dimensions

Table 1-1 BAC-8000 dimensions

ABCD EFG

6.53 in.4.89 in.4.25 in.0.77 in.6.00 in.2.14 in.1.92 in.

166 mm 124 mm 108 mm 19 mm 152 mm 54 mm 49 mm

About the controllers

Safety considerations

Titus assumes the responsibility for providing you a safe product and safety guidelines during its use. Safety means protection to all individuals who install, operate, and service the equipment as well as protection of the equipment itself. To promote safety, we use hazard alert labeling in this manual. Follow the associated guidelines to avoid hazards.

Danger

Danger represents the most severe hazard alert. Bodily harm or death will occur if danger guidelines are not followed.

Warning

Warning represents hazards that could result in severe injury or death.

Caution

Caution indicates potential personal injury or equipment or property damage if instructions are not followed.

Note

Notes provide additional information that is important.

Detail

Provides programing tips and shortcuts that may save time.

SECTION 2

Installing the controller

This section provides important instructions and guidelines for installing the BAC-8007 and BAC-8207 controllers. Carefully review this information before installing the controller.

Installing the VAV controller includes the following topics that are covered in this section.

In addition to the topics, see the section Dual-duct connections on page 24 for connecting the controllers to a TSP-8000 actuator for dual-duct operation.

Setting the rotation limits on page 12 Mounting on page 12 Connecting inputs on page 14 Connecting outputs on page 16 Connecting to an MS/TP network on page 19 Connecting an airflow sensor on page 22 Connecting power on page 22

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