Honeywell TB3026B, TB3026B-W Operation Manual

Installation and Operations Guide

31-00098-01

TB3026B, TB3026B-W

Important safety information and installation

!

precautions

Read all instructions

Failure to follow all instructions may result in equipment damage or a hazardous condition. Read all instructions carefully before installing equipment.

Local codes and practices

Always install equipment in accordance with the National Electric Code and in a manner acceptable to the local authority having jurisdiction.

Electrostatic sensitivity

This product and its components may be susceptible to electrostatic discharge (ESD). Use appropriate ESD grounding techniques while handling the product. When possible, always handle the product by its non-electrical components.

High voltage safety test

Experienced electricians, at first contact, always assume that hazardous voltages may exist in any wiring system. A safety check using a known, reliable voltage measurement or detection device should be made immediately before starting work and when work resumes.

Lightning and high-voltage danger

Most electrical injuries involving low-voltage wiring result from sudden, unexpected high voltages on normally low-voltage wiring. Low-voltage wiring can carry hazardous high voltages under unsafe conditions. Never install or connect wiring or equipment during electrical storms. Improperly protected wiring can carry a fatal lightning surge for many miles. All outdoor wiring must be equipped with properly grounded and listed signal circuit protectors, which must be installed in compliance with local, applicable codes. Never install wiring or equipment while standing in water.

Wiring and equipment separations

All wiring and controllers must be installed to minimize the possibility of accidental contact with other potentially hazardous and disruptive power and lighting wiring. Never place 24VAC or communications wiring near other bare power wires, lightning rods, antennas, transformers, or steam or hot water pipes. Never place wire in any conduit, box, channel, duct or other enclosure containing power or lighting circuits of any type. Always provide adequate separation of communications wiring and other electrical wiring according to code. Keep wiring and controllers at least six feet from large inductive loads (power distribution panels, lighting ballasts, motors, etc.). Failure to follow these guidelines can introduce electrical interference and cause the system to operate erratically.

Warning

This equipment has been tested and found to comply with the limits for a class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense.

By using this Honeywell literature, you agree that Honeywell will have no liability for any damages arising out of your use, or modification to, the literature. You will defend and indemnify Honeywell, its affiliates and subsidiaries, from and against any liability, cost, or damages, including attorneys’ fees, arising out of, or resulting from, any modification to the literature by you.

Questions, corrections, or comments?

To improve our information products and better serve our readers, your feedback is vital. If you have any questions, corrections, or comments about this publication or any other information products, please send e-mail to WEBsSquad@honeywell.com.

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Operational overview 25 Configuring a DDCMULTI application 27 Application Sequences and Configuration Settings 28 [AP] 0: Air-to-air heat pump 29 [AP] 1: Water-source heat pump 29 [AP] 2: Air-to-air heat pump 46 [AP] 3: Water source heat pump 46 [AP] 4: Air Conditioning Unit 63 [AP] 5: Air Conditioning Unit 79 [AP] 6: 4 Pipe Fan Coil Unit 96 [AP] 7: 4 Pipe Fan Coil Unit 112 [AP] 8: 4 Pipe Fan Coil Unit 128 [AP] 9: 4 Pipe Fan Coil Unit 146 [AP] 10: Air to Air Heat Pump 164 [AP] 11: 2 Pipe Fan Coil Unit 183 [AP] 12: 2 Pipe Fan Coil Unit 201 [AP] 13: 2 Pipe Fan Coil Unit with Change Over Control 219 [AP] 14: 2 Pipe Fan Coil Unit with Change Over Control 237 [AP] 15: 2 Pipe Fan Coil Unit 255 [AP] 16: 2 Pipe Fan Coil Unit with Change Over Control 272 [AP] 17: 4 Pipe Fan Coil Unit 290 [AP] 18: 2 Pipe Fan Coil Unit with Change Over Control 309 Appendix A: BACnet object and property reference 327 Appendix B: Ordered list of control points 343 Appendix C: Quick reference 347 Appendix D: Canadian conformance statements 348

Contents

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Installation and Operations Guide

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About the BACnet FF

The Honeywell BACnet FF (models TB3026B and TB3026B-W) is a communicating sensor/fixed application controller with built-in humidity sensor. The TB3026B-W is the wireless version with an onboard wireless receiver for wireless occupancy control.

Electrical inputs and outputs wire directly to field equipment. The BACnet FF comes pre-loaded with nineteen applications that support common uses. These applications can be selected and some of the parameters adjusted at the controller without the need for a BACnet front end.

Operational information and control data is available to other building controllers and systems through the BACnet protocol (ANSI/ASHRAE standard). This enables a BACnet FF to share data and execute commands initiated from other BACnet-compliant devices.

BACnet FF

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Installation and Operations Guide

About this document and related publications

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About this document and related publications

This document provides information about installing and wiring a BACnet FF to equipment, power, and communication channels. It also shows how to operate the user interface.

IMPORTANT Always install equipment in accordance with the National

Electric Code and in a manner acceptable to the local authority having jurisdiction (AHJ). No guidelines, instructions, installation practices, or other information presented in this guide may be interpreted to supersede or modify the local codes and practices of the AHJ.

Ta bl e 1 Other documentation related to BACnet FFs Document (ID) Contains

Installation Instructions (31-00093) Instructions on how to install, wire

and perform initial configuration for the BACnet FF

Product Data (31-00096)

WEBs-AX Configuration Wizard Guide (31-00097)

Summary of capabilities and specifications

Instructions on how to configure the BACnet FF through the WEBs based wizard

Installation and Operations Guide

BACnet FF

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BACnet FF dimensions

The BACnet FF consists of a mounting plate and a circuit board with a plastic cover. See the BACnet FF Installation Instructions (31-00093) for more information.

Figure 1 TB3026B and TB3026B-W dimensions

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Mounting guidelines

The BACnet FF is designed to be wall-mounted indoors, with dimensions ideal for mounting to a single-gang electrical box.

Mount in a clean, dry location away from windows, air ducts, and other places where environmental factors may affect temperature and humidity readings. If you mount the BACnet FF on the interior of an outside wall, thoroughly insulate so outside air behind the sensor does not affect the sensor reading.

To meet requirements of the Americans with Disabilities Act, mount no higher than 48" from the floor and with a minimum clear floor space of 30" X 48" (760 X 1220 mm).

CAUTION Thoroughly read all instructions before mounting and wiring.

Always install equipment in accordance with applicable electric codes and the instructions.

Installing the wallplate

The BACnet FF can be mounted horizontally on the wall or on a 4 in. x 2 in. (101.6 mm x 50.8 mm) wiring box.

Installation and Operations Guide

Mounting guidelines

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

To install the wallplate

1. Position and level the wallplate (for appearance only).

2. Use a pencil to mark the mounting holes.

Figure 2 Wallplate dimensions

3. Remove the wallplate from the wall and, if drywall, drill two 3/16-in.

holes in the wall, as marked. For firmer material such as plaster, drill

Installation and Operations Guide

Wiring the wallplate

CAUTION Disconnect power before wiring. Failure to do so may result in

electrical shock or equipment damage.



BACnet FF

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two 7/32-in. holes. Gently tap anchors (provided) into the drilled holes until flush with the wall.

4. Position the wallplate over the holes, pulling wires through the wiring

opening.

5. Insert the mounting screws into the holes and tighten.

To wire the wallplate

1. Connect wires to the terminal block using Figure 3 as a guide.

Figure 3 Terminal assignments and pin numbers

2. Securely tighten each screw.

3. Push excess wire back into the hole.

4. Plug the hole with nonflammable insulation to prevent drafts from

affecting the BACnet FF.

Note A jumper is pre-installed between pins 1 and 2 (24 VAC and

Relay 24 VAC). This supplies 24 VAC to BO 1, BO 3, and BO 4. It can be removed if you want to power these inputs from a separate power supply.

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Mounting the BACnet FF faceplate

To mount the BACnet FF faceplate, align the terminal blocks with the pins on the back of the BACnet FF and push the faceplate straight onto the wallplate.

Installation and Operations Guide

Mounting guidelines

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Figure 4 BACnet FF faceplate mounting

Mounting a door/window sensor

These instructions apply to the primary door sensor and an optional second door/window sensor, WSK-24.

Note The BACnet FF supports a maximum of 8 door/window sensors.



To mount a door sensor

1. Remove the battery tab.

Note Completely remove the battery tab or the BACnet FF will not

operate.

2. Remove the plastic mounting bracket from the door sensor housing.

3. Place the mounting bracket for the door sensor high on the frame of the

door. Secure the bracket to the door frame using the two screws or adhesive tape provided.

Installation and Operations Guide

BACnet FF

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4. Door sensor bracket mounting

5. Make sure the notched side of the door sensor is pointing in the

direction that you will mount the magnet.

6. Snap the sensor into the mounting bracket.

7. Align one end of the magnet with the notched side of the door sensor

housing.

8. Mount the magnet a maximum of 3/4 in. (19 mm) from the door sensor.

Figure 5 Maximum distance between door sensor and magnet

9. Secure the magnet to the door by using the two screws or adhesive tape

provided. An optional spacer is provided.

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10. Open and close the door to ensure that there is no interference.

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Installation and Operations Guide

Mounting a PIR occupancy motion sensor

Note The BACnet FF supports a maximum of 3 passive infrared (PIR) sensors.



To mount a PIR motion sensor

1. T ake off the cover by removing the cover release screw on the bottom of

the PIR backplate.

Mounting guidelines

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Figure 6 PIR occupancy motion sensor mounting options

2. Insert three AAA batteries.

3. Secure the PIR sensor to the wall using one of the following options:

• Wall Mount option 1: Use adhesive tape to secure the PIR backplate to the wall.

• Wall mount option 2: Using either the top or bottom two holes of the PIR backplate, insert the two long screws to secure the PIR backplate to the wall.

• Ceiling mount option: Align the m ounting bracket and PIR backplate. Insert the two small screws into the top holes of the backplate and secure it to the bracket. Use the two long screws (and, if necessary, the optional plastic anchors) to mount the bracket and PIR backplate to the ceiling.

4. Replace the PIR sensor cover and cover release screw.

Installation and Operations Guide

Terminals and wiring

The BACnet FF label identifies wiring terminals by number and function. T erminals are numbered from top to bottom, beginning with 1 on the upper right side of the wallplate and continuing top-to-bottom on the right side of the controller. I/O terminals carry an additional numeric identifier that corresponds to the software I/O. Use this section to identify terminals on the BACnet FF. See later sections for more specific instructions, cautions, and recommendations.

Power supply terminals

Use terminals 1 and 5 to connect the 24V AC power supply to the BACnet FF.

Ground terminals

These terminals are used for terminating the grounded leg of the 24VAC circuit and the return grounds of BOs.

COM terminals

These terminals are used for terminating the return grounds of AIs and AOs.

Universal inputs (AIs)

Use these terminals (in conjunction with adjacent GND terminals) to connect universal inputs. Input terminals accept a variety of signal types.

BACnet FF

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Binary outputs (BOs)

Use these terminals to connect BO loads (ON/OFF control). Terminate the BO return ground to the panel/enclosure ground or a GND terminal on the BACnet FF.

WARNING! Do not apply line voltage to source pins.

Analog outputs (AOs)

Use these terminals to connect AO-loads (modulating control). The AO-return ground must terminate to the nearest GND terminal.

MS/TP LAN terminals

Use terminals 11(MS/TP-) and 12 (MS/TP+) to connect the BACnet MS/TP LAN to the BACnet FF. Maintain polarity throughout the entire LAN. See “MS/TP LAN Wiring” on page 16 for more information.

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Using terminal blocks

Installation and Operations Guide

The BACnet FF uses header-style termination blocks to simplify field wiring of power, communications, and I/Os. Terminal blocks accept wire gage from 12–24AWG.



To terminate wire to a BACnet FF

1. Strip approximately 1/8” of the wire jacket from the end of the wire.

2. Use a small screwdriver (1/8” max) to turn the adjustment screw fully

counter-clockwise. The clamps in the wire slot separate as you turn the screw.

3. Insert the stripped end of the wire into it (try to get the jacket flush with

the terminal block). If using stranded wire, be sure to insert all strands into the wire slot. If terminating multiple wires, trim wires to same length and tightly twist exposed wire together.

4. Hold the wire in place and turn the adjustment screw clockwise to

tighten it until the clamps in the wire slot secure the wire.

5. Tug gently on the wire to ensure it is secure.

Terminals and wiring

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Installation and Operations Guide

BACnet FF

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Power supply guidelines and requirements

BACnet FF uses 24VAC power from a UL Listed Class 2 24VAC transformer (not provided). The BACnet FF uses a half-wave rectifier to convert the AC power supply to onboard power. This enables multiple BACnet FFs with half-wave power supplies to be powered from a single, grounded transformer.

CAUTION Half-wave devices and full-wave devices must not use the same AC

transformer. If a BACnet FF will share its power supply with another device, make sure that the other device utilizes a half-wave rectifier and that polarity of wiring is maintained. Failure to do so can result in equipm en t dam a ge.

Figure 7 Internal BACnet FF power wiring schematic, half-wave rectifier

BACnet FF power ratings

The BACnet FF minimum current draw is 24 VAC @50ma leading to ~1.2VA. The minimum applies when the BACnet FF supports no binary output (BO)

loads. If the BACnet FF supports AOs, the minimum VA rating includes the draw of all AO-loads energized at maximum rating. The maximum power draw is the minimum VA rating plus the power draw when all BOs are energized at maximum capacity .

Selecting a transformer

The safest way to size a transformer is to ensure that the maximum VA load rating of the BACnet FF is less than 85% of the Nameplate VA rating of the transformer. Even if all outputs are not presently used, this ensures that each BACnet FF has sufficient power for future equipment additions.

IMPORTANT Transformer sizing should never exceed the maximum UL Class

2 rating.

Power supply grounding and wiring

When connecting power to the BACnet FF, ensure that one leg of the VAC secondary circuit connects to a known earth ground. Also ensure that the GND terminal on the BACnet FF connects to the same known earth ground.

Supplying a high-quality ground connection to a BACnet FF and then properly connecting the BACnet FF to the ground is one of the most important things you can do to ensure a trouble-free installation.

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The 24VAC secondary leads are not interchangeable. Once a lead connects to the GND terminal on the BACnet FF, it is the grounded lead. Observe and maintain polarity for subsequent connections. The GND terminal provides a reference ground for the circuit board and communications wiring. Use 18 AWG cable for best results.

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Installation and Operations Guide

WARNING Ensure that all BACnet FF power, communications, and I/O

cabling are grounded according to these instructions. Failure to follow these instructions may result in BACnet FF operational and communication failures or equipment damage.

Power supply wire selection

If you are considering long power supply wiring runs, using the right wire size is critical. If the wire is too small, the resistance may be too high, resulting in a low voltage supply to the BACnet FF. This is known as line loss. The wire size is based on the length of the wire run and the current draw of the BACnet FF. Use Figure 8 to determine wire size; obtain additional information from the transformer manufacturer.

Power supply guidelines and requirements

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Figure 8 BACnet FF wiring recommendations

Backup power

The BACnet FF features a built-in supercapacitor that will run the on-board clock for ten days in the event of power loss.

Installation and Operations Guide

MS/TP LAN Wiring

The BACnet FF communicates on the site-wide BACnet system over a twisted-pair MS/TP LAN, which uses the EIA–485 signaling standard. BACnet FFs are master devices on the MS/TP LAN.

BACnet FF

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Each BACnet FF employs a high-quality EIA–485 transceiver and exerts load on the MS/TP LAN.

Ta bl e 2 MS/TP LAN facts

Transmission speed 9.6, 19.2, 38.4, 76.8Kbps (configured at global

controller). Layout Bus. Cabling BACnet specifies the following. Shielded, twisted-pair

cabling with characteristic impedance between 100 and

130W. Distributed capacitance between conductors

must be less than 30 pF/foot (100 pF/m). Distributed

capacitance between conductor and shield must be less

than 60 pF/foot (200 pF/m). Foil or braided shield

acceptable. Segment length 4000 ft. (1071 m.) per segment using recommended

wire. Maximum devices

overall

Depends on classification of devices as master or slave.

Maximum number of master devices is 128. Maximum

number of slave devices or devices overall (mixed

master and slave) is 255. This includes BACnet FFs,

BACnet global controllers (all are considered masters)

and any other devices, regardless of their relative unit

loads.

¼ unit

Maximum devices per segment

Repeaters Required when making runs longer than 4000 ft. Three

Terminating resistors

Shield grounding Ground shield drain wire at single point earth (panel)

Terminating MS/TP LAN cabling

MS/TP terminations are located on the lower left of the BACnet FF wallplate. Maintain polarity of the MS/TP wire run throughout the MS/TP LAN.

Depends on relative unit load of devices (see

“Terminating MS/TP LAN cabling” on page 16).

repeaters maximum between any two devices.

Matched resistors required at each end of segment bus

wired across (+) and (–). Use matched precision

resistors rated ¼W ±1% / 80 - 130 Ohms.

ground, not BACnet FF ground. Tape off shield drain

wire at other end. Tie shield drain wire through at each

BACnet FF.

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Grounding the MS/TP LAN shield

Proper shield grounding of the MS/TP cabling can help minimize the risk of communications problems and damage to equipment because of transient voltage spikes (for example, lightning strikes).

Follow these guidelines for grounding MS/TP cable shields:

• Each MS/TP segment should have a single point of shield ground, preferably as close to the middle of the cabling run as possible.

• Do not ground the MS/TP shield using a BACnet FF terminal.

• Never ground both ends of a shield; differences in potential between the grounds may induce current on the shield, causing interference.

• At termination conn ectin g points, tie the shield through with a wire nut.

• At ungrounded, exposed shield points (the end of a segment), tape back the shield to the wire jacket or, for optimum transient shunting, use 100V gas discharge tubes or 120V MOVs between shield and ground.

Terminating resistors

Matched terminating resistors wired across MS/TP+ and MS/TP– are required at the last device on each end of the MS/TP segment for signal integrity (Figure 9).

Installation and Operations Guide

MS/TP LAN Wiring

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Optimum segment performance typically requires “tuning,” a process by which the value of the terminating resistors is selected based on the wave form of signals on the segment. View wave forms using an industrial scope meter. The goal is to have as square a wave form as possible with an amplitude greater than 200 mV. Resistors affect the wave form as follows:

• When the resistance value decreases, the amplitude of the wave form decreases and becomes more square.

• When the resistance value increases, the amplitude of the wave form increases and becomes less square.

Typically, precision resistors in the range 80-130 Ohms (+ results. Ideally, the value of the terminating resistors should match the rated characteristic impedance of the installed cable. For example, if the installed MS/TP cable has a listed characteristic impedance of 100 Ohm, install 100 Ohm matched precision resistors.

CAUTION Do not mismatch terminating r e sistors. Ensure that both resistors

on a segment have the same value.

Note Typically, White is Data - and Black is Data +.

1%) yield acceptable

Figure 9 Terminating resistor detail

Installation and Operations Guide

BACnet FF

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Configuration

Once the BACnet FF is mounted and wired, configure it from the BACnet FF touchscreen.

Adjusting the date and time

When the controller is first powered up, you may need to set the date and time. These are set at the factory, but the on-board power supply may have run down. If this happens, adjust the date and time.



To adjust the time

1. Touch Clock at the bottom of the screen.

1. Use the arrows to adjust the year, month, and day.

2. Press DONE.

3. Adjust the time and press DONE.

T o manually adju st the date and ti me after initial setup, see “Clock operation” on page 25.

Setting the MAC address and device instance

The factory default MAC address is 0. Valid MAC addresses are 0-127. The default device instance is 0009999. Valid device instances are 0-4194302.

Note The device instance can also be set using a BACnet Supervisor



To set the MAC address and device instance at the display

1. From the home screen, press SYSTEM (left side of the screen).

Five blank touch keys will appear at the bottom of the screen.

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Installation and Operations Guide

E

CANC

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USASU

SYSTE

OFF

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Schedule

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Se

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M19923

Configuration

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2. Press and hold the two blank keys on either side of the center key for

approximately five seconds (see Figure 10).

T

Insi

DON

Figure 10 Entering ISU mode

t T

Followin

The installer setup (ISU) screen appears. An ISU code is displayed in the lower left. It is a four-digit code beginning with zero. The current setting is displayed in the lower right.

Figure 11 ISU screen

3. Use the down arrow next to the installer setup code to advance to ISU

code 800.

4. Use the up and down arrows next to the current setting to set ISU code

800 (MAC address) to a value between 0 and 127.

5. Set ISU code 801 (first digit of device instance) to a value between 0

and 4.

Note The device instance is set by entering values in four separate

ISU codes. See example on page 20.

Installation and Operations Guide

BACnet FF

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6. Set ISU code 802 (second and third digits of device instance) to a value

7. Set ISU code 803 (fourth and fifth digits of device instance) to a value

8. Set ISU code 804 (sixth and seventh digits of device instance) to a value

9. Press Done to exit installer setup.

Installer setup (ISU) codes

Installer setup mode provides access to functions specific to installation of a BACnet FF. Some BACnet FF configuration parameters can be altered from the ISU screens. The ISU parameters can also be accessed via BACnet.

between 00 and 99.

between 0 and 99.

For example, if you want to set the MAC address to 15 and the device instance to 1876, you would use these settings:

ISU code 800=15 ISU code 801=0 ISU code 802=00 ISU code 803=18 ISU code 804=76

You can require a PIN to access ISU mode by setting AV-133 to a non-zero, four-digit number.



To access the ISU screens

1. From the home screen, press SYSTEM (left side of the screen).

2. Five blank touch keys appear on the bottom of the screen between the Done and Cancel keys. Press and hold the two blank keys on either side

of the center key for approximately five seconds. See Figure 10.

3. If a PIN code is required, use the top arrows to select the first two digits of the code and the bottom arrows to select the third and fourth digits of the code, and then press DONE.

The ISU screen appears.

4. Use the arrows to select parameters and values. See Table 3 for details.

5. Press DONE.

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Installation and Operations Guide

Note After five minut es of inacti vit y, the ISU screen reverts to the

main screen. Table 3 provides a list of ISU param e ters

Ta bl e 3 ISU parameters

ISU Parameter Code

Description Allowed Values

120 Year, first 2 digits 19-21

Configuration

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130 Year, second 2

00-99 (00-54 if ISU 200=21)

digits 140 Month 1-12 150 Day 1-31 160 Schedule format

BV-133 280 Backlight control

BV-79 320 Swap

English/Metric

0 – not programmable (BV-133=0) 4 – 7 day programmable (BV-133=1)

0 – on for 20 seconds after keypress 1 – low always on, bright after keypress

1 – show opposite units to specified in DDC header

BV-69 330 Daylight saving

AV-127

500 Filter change

reminder

AV-124

0 – off; no automatic adjustments 1 – pre 2007 scheme 2 – 2007 and later scheme

0 – reminder not used 1 – 10 days 2 – 30 days 3 – 60 days 4 – 90 days 5 – 120 days 6 – 365 days

510 Hum pad change

reminder

AV-125

520 UV lamp change

reminder

0 – reminder not used 1 – 90 days 2 – 180 days 3 – 365 days

0 – reminder not used 1 – 365 days

AV-126 540 Program periods

AV-129 640 Clock format

BV-83 670 Keypad lock

AV-128

2 – Wake/Sleep 4 – Wake/Leave/Return/Sleep

12 – 12 hour (BV-83=0) 24 – 24 hour (BV-83=1)

0 – no lock 1 – access temperature settings only 2 – fully locked

Installation and Operations Guide

Ta bl e 3 ISU parameters

BACnet FF

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ISU Parameter Code

Description Allowed Values

700 Sensed room

temperature offset (AV-138)

701 Sensed room

humidity offset (AV-139)

702 Sensed outside air

temperature offset (AV-140)

703 Sensed outside

humidity offset

(AV-141) 800 MS/TP MAC 0-127 801 BACnet Device

Instance - first digit 802 BACnet Device

Instance second and

third digits 803 BACnet Device

Instance forth and

fifth digits

-4 to +4 degrees F

-5% TO +5% Humidity cannot be adjusted above 100% or below 0%.

-4 to +4 degrees F

-5% TO +5% Humidity cannot be adjusted above 100% or below 0%.

0-4

00-99

804 BACnet Device

Instance sixth and

seventh digits

Pairing a sensor to a wireless BACnet FF

The BACnet FF and wireless sensor kits (WSK-24) ship unpaired, verified by two dashes in the Sensor Status field on the BACnet FF’s Wireless Sensor Setup screen. To pair them, issue a pairing command from the BACnet FF and then activate the sensor.

Accessed from Field Service Mode, the BACnet FF’s W i reless Sensor Setup Mode includes diagnostic screens for configuration and checkout of associated sensors. With :UC displayed in Field Service Mode, press the blank key (blank area) just to the left of the blank center key, and then press the down arrow key next to the :UC parameter.

Door/window sensors may be paired to any available sensor number in the range 1-8. When cycling through sensor numbers on the Wireless Sensor Setup screen, unpaired sensor numbers show a status of --.

PIR sensors may be paired to any available sensor number in the range 1-3.

00-99

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Installation and Operations Guide

Figure 12 Wireless Sensor Setup screen

 To pair a sensor to a BACnet FF

1. Make sure the battery is installed and activated in the sensor.

2. If the sensor is a door/window switch, align the magnet so that the

sensor is in the closed position. If the sensor is a PIR sensor, cover the PIR. IMPORTANT! Verify that the sliding door/window contact is closed and cover all other PIRs to prevent interference during the pairing process.

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Configuration

3. On the BACnet FF select the sensor to pair and then press Reset.

The RESET key disappears and WAIT is displayed indicating that the BACnet FF is waiting to pair the sensor with the next device that receives a radio signal.

4. Activate the sensor you want to pair.

Note Pairing times out after 10 seconds of no pairing activity.

5. Verify that the BACnet FF and sensor successfully paired. Paired = sensor status is displayed, replacing --. Timed out = RESET is displayed and sensor status is --.

Figure 13 Door sensor number 1 paired and in closed status.

 To erase sensor-to-BACnet FF pairings

1. While viewing any sensor status screen while pairing is not taking place, press the blank key to the left of CANCEL.

2. Press the blank key to the right of DONE. The sensor status field displays --, indicating unpaired.

Installation and Operations Guide

Fixed field service codes

Field service mode enables technicians to query and command key operating variables in the BACnet FF while at the BACnet FF touchscreen. A technician presses a particular key sequence at the BACnet FF to enter field service mode. In field service mode a technician uses the left arrows to scroll through data codes and the right arrows to change the value associated with a code.

The lower left of the LCD shows the two-digit data code and the main area displays the data value. A pre-defined list of data codes is available within the description of each application. See Ta ble 8 as an example for applications 0 and

1. “Configuring a DDCMULTI application” on page 27 provides mo re information about these settings.

Note When using the local user interface to change applications (AV-49), the

application defaults will NOT change and must be changed manually.

You can deny users access to field service mode by setting BV-68 to ON. You can also require a PIN code in order to enter field service mode by setting AV-132 to the desired PIN number.

Field service mode ends automatically if there is no key activity for five minutes.

BACnet FF

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Setting field service codes

 To set field service codes

1. From the home screen, press SYSTEM (left side of the screen).

2. Press and hold the center bottom key (blank) for about five seconds. See

Figure 10.

3. If a PIN code is required, use the top arrows to select the first two digits

of the code and the bottom arrows to select the third and fourth digits of the code, and then press DONE.

The field service screen appears.

4. Press the left up or down arrows until the desired code appears. See

T able 8 on page 42 for the list of Setup Codes. NOTE: All applications use the same Setup Codes.

5. Press the right up or down arrows to adjust the value associated with the

code.

6. Press the left up or down arrows to accept the change and scroll to a

different code.

7. Press DONE to exit field service mode.

24

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Operational overview

The BACnet FF operates in one of three modes - Setpoint, Occupancy Single Setpoint, and Occupancy Dual Setpoint.

Common features

This section describes features common to all operating modes. For descriptions of mode-specific features, see “Checking MS/TP communication” on page 26 and “Checking MS/TP communication” on page 26.

LCD backlight operation

BV-79 controls backlight operation. If BV-79 is OFF, the backlight turns ON when any key is pressed and stays on for 20 seconds after there is no key activity. If BV-79 is ON, the backlight is ON continuously.

Clock operation

The BACnet FF’s real-time clock provides time and date for displaying the date and time, implementing daylight savings settings, and implementing schedules. If AC power is lost, a supercapacitor will power the clock for ten days. If the date and time are lost, the BACnet FF will display the set time and date screens when powered up.

Installation and Operations Guide

Operational overview

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Note The real-time clock is separate from the CPU time keeping utility. It only

affects the items listed in this section.

Daylight savings (DLS) settings can be controlled by a BACnet FF or by a BACnet Supervisor. If installer setup (ISU) parameter 330 is set to non-zero, the BACnet FF will control DLS settings. If ISU 330 is zero, DLS is controlled by a BACnet Supervisor.

The clock accepts time syncs from a BACnet Supervisor. If configured in DDC, the date and time can also be set manually using the display. To den y a user permission to set the clock, set BV-116 to 1.

The last time command, whether from the user screen or BACnet, takes precedence.



To adjust the real-time clock

1. Press CLOCK.

2. Use the arrow keys to select a year, month, and day.

3. Press DONE.

4. Select a time.

5. Press DONE.

Installation and Operations Guide

Baud rate

Requests seen

Headers seen

MAC address

BACnet FF

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MORE key navigation

The MORE key allows a programmer to make additional screens available to users. Enabling the display of one or more of these screens causes the MORE key to appear on the main screen. The screens that can be made available are:

• Outside air temperature

• Inside/outside humidity

When the user presses MORE, the first enabled screen appears. Pressing MORE again displays the next screen.

Touchscreen cleaning

If the display screen needs to be cleaned, the user presses SCREEN. The display will lock for 30 seconds allowing the user to wipe the screen without pressing any keys. When the display reads 0, press SCREEN to continue cleaning or DONE to quit. Use a non-abrasive glass cleaner.

Checking MS/TP communication

You can check MS/TP communication from the display. The BACnet FF will indicate if MS/TP packets and headers have been seen, the baud rate, and the MAC address.



To check MS/TP communication

1. Enter field service mode. See “To set field service codes” on page 24.

2. Ensure the UC code is displayed.

3. Press the blank key usually labeled MORE (bottom row, second from

right).

4. Press the down arrow near the UC code.

The MS/TP communication screen appears.

26

5. Press DONE twice to exit.

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Installation and Operations Guide

Configuring a DDCMULTI application

The BACnet FF is pre-loaded with DDC that lets you select one of multiple applications. Applications for heat pumps, A/C units, and fan coil units are all contained in the same DDC file. Using one of these applications, an installer can configure the controller in the field - just set the MS/TP parameters, device instance, and application [AP] (AV-49) parameters and it is ready to go.

Note When using the local user interface to change applications (AV-49), the

application defaults will NOT change and must be changed manually. However, The Niagara-based configuration wizard will change the application specific default values.

Advanced application settings will require a BACnet connection to a BACnet BMS. These detailed application settings need to be reviewed to ensure all are set correctly before enabling the device's outputs.

CAUTION Setting the [OE] field service code to ON powers up the outputs.

Ensure that the outputs are configured correctly before setting OE to ON.Failure to do so may result in equipment damage.

1. Set field service code [OE] (BV-2) to ON to power up the outputs.

Configuring a DDCMULTI application

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2. Press DONE.

Installation and Operations Guide

BACnet FF

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Application Sequences and Configuration Settings

Table 4 shows settings for all 19 applications and should be referenced accordingly

Ta bl e 4 Primary settings for the 19 apps

Code Point Value Default Options Units Notes

160 BV-133 Internal Sched

Enable 280 BV-79 Backlight ON Inactive 320 BV-69 Swap Eng -

Don't use this is

on custom

screen 330 AV-127 Day Light

Savings Option 500 AV-124 Filter Period 0 0 510 AV-125 Pad Period 0 0

Inactive Inactive/Active

2 0-2 0 - disable, 1 - pre 2007, 2 -

2007+

520 AV-126 UV Period 0 0 540 AV-129 Prog Periods 0 0 640 BV-83 Clock Fmt

Inactive 12 hr

Active 24 hr 670 AV-128 Keypad Lock

0-no lock,

1-temp settings

only, 2-locked 700 AV-138 Temp Offset 0 0 701 AV-139 Humidity Offset 0 0 702 AV-140 OA Temp Offset 0 0 703 AV-141 Humidity Offset 0 0

BV-141 Deny Schedule

Edits

BV-114 Deny Schedule

View

BV-115 Deny

Permanent Hold

BV-130 Deny Vacation

Hold

Inactive Inactive/Active

28

BV-116 Deny Clock

Adjust

AV-132 FS PIN 0 0 Pin locks field service

AV-133 ISU PIN 0 0 Pin locks ISU service access

Inactive Inactive/Active

access

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Installation and Operations Guide

Heat Pumps: Apps 0 and 1 [AP] 0: Air-to-air heat pump and [AP] 1:

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Heat Pumps: Apps 0 and 1

[AP] 0: Air-to-air heat pump and [AP] 1: Water-source heat pump

Single-speed fan with binary output start/stop. optional analog variable-speed fan control, 1-stage auxiliary heat, optional floating or analog economizer.

Fan mode control (AV-17)

• 1 = continuous

• 2 = cycle with heating

• 3 = cycle with heating/cooling

Configurable Occupancy Modes

• SYSTEM Block: AUTO/OFF selection (Occupied/Unoccupied)

• Occupancy mode (AV-123=0, default): Schedules Occupancy states

Inputs and Outputs

• Setpoint mode (AV-123=1): Schedules Setpoints

• Dual setpoint mode (AV-123=2): Dual setpoints when Occupied

• Internal schedules enabled when BV-133 is active or ISU 160=4

• BMS schedules enabled when BV-56 is active

Ta bl e 5 Inputs and Outputs: [AP] 0 and [AP] 1

Point Function

AI-0 Optional:

Use as space sensor in place of the internal space sensor AV-104 (Set BV-32 active and BV-47 inactive)

Use as an outdoor-air sensor; maps to display

AV-103 (Set BV-47 active and BV-32 inactive) BI-1 Optional standby input (for PIR/door/window sensor) AI-2 Supply-air sensor (optional, but required for

economizer option) BI-2 Normally-open condensate sensor (optional) BO-0 Fan BO-1 Heat-pump compressor BO-2 Reversing valve BO-3 Heating stage 1 (optional)

Installation and Operations Guide

Fan

HP Cmpr

Rev Vlv

Htg Stg 1

Econ Opn

Econ

Econ Cls

Controller Terminations

HPH1 AP 0

GND

5

BO 0

BO 1

BO 2

BO 3

BO 4

BO 5

AO 1

G

Y1

O/B

W1

EC

0-10Vdc

Com

14

AO 0

C

RC24VAC

1

24V

Com

BI/AI 1

COM

BI/AI 2

COM

BI/AI 0

Sensor *

SA Sensor

Optional Standby

N.C. or N.O.

Optional Condensate alarm or fail

VC

VFD /SCR

4-20ma

* Optional space or outside temperature sensor.

4-20ma

Ta bl e 5 Inputs and Outputs: [AP] 0 and [AP] 1

Point Function

BO-4 Economizer open (optional) BO-5 Economizer close (optional) AO-0 Economizer (optional) AO-1 Analog fan speed (optional)

Wiring diagrams

BACnet FF

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Controller Terminations

RC24VAC

C

G

Y1

O/B

W1

EC

VC

0-10Vdc 4-20ma

4-20ma

HPH1 AP 1

HP Cmpr

Rev Vlv

Htg Stg 1

Econ Opn

Econ Cls

Econ

VFD /SCR

Sensor *

SA Sensor

GND

BO 0

BO 1

BO 2

BO 3

BO 4

BO 5

AO 0

Com

14

AO 1

BI/AI 0

COM

BI/AI 1

COM

BI/AI 2

1

5

Fan

24V

Com

Optional Standby

N.C. or N.O.

Optional Condensate alarm or fail

Figure 14 Controller terminations: [AP] 0, [AP] 1

Sequences of Operation

SYSTEM Block Control (BV-102)

30

* Optional space or outside temperature sensor.

Controller outputs are disabled when Enable Outputs [OE] BV-2 OF/On is in the OF (inactive) state. Do not enable outputs until you are certain the wiring and configuration is correct and complete.

When the unit is configured to run in Occupancy Mode, the SYSTEM Block allows the user direct control of occupied or unoccupied state from the controller display. Selecting “Auto” places the controller in Occupied state. Selecting “OFF” places the controller in unoccupied state.

The SYSTEM Block can be hidden by setting BV-102 inactive. When the SYSTEM Block is hidden occupancy states are controlled exclusively by the onboard or BMS schedules.

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Installation and Operations Guide

If onboard or BMS schedules are enabled, the “OFF” selection will override the controller’s scheduled state and force the unit into Unoccupied state. If you do not want the user to have this ability, set BV-102 inactive to hide the SYSTEM Block.

You can optionally change the behavior of the SYSTEM Block “OFF” setting so that instead of placing the controller in the Unoccupied state, the controller will turn the fan off. Heating and cooling are disabled when the fan is off. The fan will remain off until the user changes the SYSTEM Block to “Auto.” Set BV-10 to active to allow this option.

Heat Pumps: Apps 0 and 1 [AP] 0: Air-to-air heat pump and [AP] 1:

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Figure 15 Display: SYSTEM Block OFF; SYSTEM Block AUTO

Configure schedules

The BACnet FF can be configured to follow an internal schedule by setting ISU parameter 160 or BV -133. The BACnet FF may also be scheduled by a BMS. Set BV-56 to active to enable BMS schedules. BV-133 changes to inactive when BV-56 is active.

If the internal schedule is OFF, the user can adjust the setpoint (within setpoint limits).

Schedules are stored in flash memory so they persist through power cycles.

Occupancy control (AV-123 = 0, default)

The controller operates in Occupied state when the Occupied Command (BV -64) is turned ON by any of the following:

• When the controller’s SYSTEM Block “AUTO” is selected by the user

• By local internal schedule, which writes to BV-40 at priority 16

• By a command sent from a BMS schedule or BMS operator override, writing to BV-40.

Note If the user is allowed to command the SYSTEM Block, this

command is at priority 10. BMS schedules should write to one of the BV-40 priorities 12-16 to avoid overriding the user command.

• When the occupant has initiated an aft er-hours override by pressing the override arrows on the touch screen.

The Unoccupied Setpoints are activated when the controller’s SYSTEM Block is set to “OFF” by the user.

Installation and Operations Guide

When operating in the Unoccupied state, the override up/down arrows can be pressed to force the controller into the Occupied state for up to 4 hours (default value). The override time limit (AV-97) is adjustable from a minimum of 0.2 hours to a maximum of 9.5 hours.

Setting BV-9 to active enables the controller to default to Occupied state whenever communication with the BMS is lost continuously for more than 5 minutes. The command to Occupied state is implemented by setting BV-64 to active.

Occupied, Unoccupied, and Standby Heating and Cooling Setpoints

When operating in the Unoccupied state, the cooling and heating setpoint revert to specific values:

When operating in the Occupied state, the cooling and heating setpoints are calculated as offsets from the user adjustable Space Setpoint (AV-90):

BACnet FF

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• Current Cooling Setpoi nt (AV-99) = Unoccupied Cooling Setpoint (AV-95)

• Current Heating Setpoint (AV-100) = Unoccupied Heating Setpoint (AV-96)

• Current Cooling Setpoint (AV-99) = AV-90 plus AV-93 plus Demand Offset (AV-106)

• Current Heating Setpoint (AV-100) = AV-90 minus AV-94 minus Demand Offset (AV-106)

When operating in the Standby mode, the Current Cooling Setpoint and Current Heating Setpoint are calculated as for occupied mode as described above. However the standby offset ([SO]:, AV-19) is transferred to the Demand Offset (AV-106) before the computations, resulting in relaxed setpoints during standby operation.

User adjustment of the Space Setpoint (AV-90) value is limited by the Setpoint High Limit (AV-91) and the Setpoint Low Limit (AV-92).

Ta bl e 6 Setpoint values in Occupancy control

Field Code De scription

[:SP] AV-90 Space Setpoint [:HI] AV-91 Setpoint High Limit [:LO] AV-92 Setpoint Low Limit [:CO] AV-93 Cooling Setpoint Offset

32

[:HO] AV-94 Heating Setpoint Offset [:UC] AV-95 Un occupied Cooling Setpoint [:UH] AV-96Unoccupied Heating Setpoint

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Installation and Operations Guide

Ta bl e 6 Setpoint values in Occupancy control

Field Code De scription

[CS] AV-99 current calculated Cooling Setpoint [HS] AV-100 current calculated Heating Setpoint

-- AV-106 demand offset (AV-106 value updates AV-99, AV-100) [SO] AV-19 standby offset; 0 minimum, 6 maximum degrees DDC transfers value to

AV-106

Setpoint control (AV-123 = 1)

In setpoint mode, the controller logically emulates residential thermostats. The space temperature is controlled to "SP Mode Cooling SP" (AV-108) and "SP Mode Heating SP" (AV-109). These setpoints are writable using BACnet. Each schedule period consists of a start time, a heating setpoint, and a cooling setpoint. The maximum number of periods per day is configured using ISU parameter 540 (AV-129). A value of 2 specifies two periods per day -- Wake and Sleep. A value of 4 specifies four periods per day -- Wake, Leave, Return, and Sleep. The scheduler selects the last valid period start before the present time as the period to use. Setpoint mode schedules are not accessible using BACnet. The only way to view, edit and save a schedule is from the unit's LCD screen.

Heat Pumps: Apps 0 and 1 [AP] 0: Air-to-air heat pump and [AP] 1:

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Note Setpoints are writable using BACnet but schedules are not accessible

using BACnet.

If the Standby mode is active, the heating and cooling setpoints are adjusted by the standby offset ([SO]:, AV-19).

Note The SYSTEM Block is hidden when the controller is in Setpoint control

mode.

Figure 16 Setpoint mode display: single-speed fan

Schedule setpoint overrides in Setpoint mode

An override is created using one of three modes. Temporary- press an arrow next to a setpoint. The words "Hold Temperature

Unit" appear above the time display, which shows the default ending time (the

Installation and Operations Guide

BACnet FF

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beginning of the next schedule transition). Use the arrows to adjust the ending time. Wait a few seconds. The arrows next to the ending time disappear and the override takes effect.

Permanent- press HOLD. The words “Permanent Hold" appear below the time display and the override takes effect.

Vacation- while in Permanent Hold, press HOLD. The words "Hold Temperature Unit" appear above the time display. Use the arrows to select the number of days (1-365) you want to override to last. Wait a few seconds. The arrows next to the ending time disappear and the override takes effect.

Pressing CANCEL returns the BACnet FF to the current schedule. The Setpoint mode override status (AV-113 and MV-13), hold until time

(AV-130), and the number of vacation days left (AV-130) can be adjusted remotely using BACnet or by DDC.

A user's ability to set Permanent or Vacation holds can be disallowed by setting BV-115 and BV-130, respectively.

Dual setpoint mode (AV-123 = 2)

In dual setpoint mode, the following quantities are used:

• Occupied Heating SP (AV-109)

• Occupied Cooling SP (AV-108)

• Unoccupied Heating SP (AV-96)

• Unoccupied Cooling SP (AV-95)

• Heating SP Limit (how high the heating setpoint can be set) (AV-92)

• Cooling SP Limit (how low the cooling setpoint can be set) (AV-91)

AV-109 and AV -108 are used to control Occupied Cooling and Occupied Heating Setpoints. Both are writable using BACnet or the device screen. When the space is occupied (BV-67 = Active), AV-109 and AV-108 are transferred to the current heating and cooling setpoints (AV-100 and AV-99).

IMPORTANT! DDC sh ould not use AV-109 or AV-108 directly. When the space is unoccupied, the Unoccupied Heating and Cooling Setpoints

(AV-96 and AV-95) get transferred to the current heating and cooling setpoints (AV-100 and AV-99). The Unoccupied heating and cooling setpoints are not user-adjustable but they are adjustable using field service mode or an operator

34

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Installation and Operations Guide

Figure 17 Dual setpoint display in Occupied mode: occupied heating setpoint AV-109, user-adjustable and occupied cooling setpoint AV-108, user-adjustable.

Heat Pumps: Apps 0 and 1 [AP] 0: Air-to-air heat pump and [AP] 1:

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workstation. Unoccupied heating and cooling setpoints are not transferred to AV-109 and AV-108 during unoccupied periods.

Note Use the MORE key to view OSA temperature and humidity values on

subsequent screens.

Fan mode control

Writes to AV-109 and AV-108 are limited by the Setpoint High and Low Limits (AV-91 and AV-92). Writes to AV-109 and AV-108 are also limited to the heating setpoint less than the cooling setpoint by a minimum of one degree.

Occupancy mode

During occupancy mode the fan operates based on the selected Fan Mode.

• Fan Control AV-17 = 1: Fan runs continuously for ventilation.

• Fan Control AV-17 = 2: Fan runs continuously for cooling and cycles on for heating demand. When in Cooling mode, the fan runs continuously. When in Heating mode, the fan cycles on only when the heating signal calls for the fan to run.

• Fan Control AV-17 = 3: Fan cycles on when cooling or heating is selected or during Unoccupied mode only when called to run by cooling or heating demand.

Setpoint mode

• AV-227 =1: Fan cycles on for cooling and for heating demand.

• AV-227 =2: Fan runs continuously.

Analog fan speed control (optional)

The fan speed analog output AO-1 will ramp from 0-100% based on the heating or cooling signal demand.

Note Variable speed drives run at minimum motor RPM even if AO-1 is zero

when in run mode.

Installation and Operations Guide

BACnet FF

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Standby Heating and Cooling setpoints

Standby state is a power-saving function of Occupancy mode. It occurs when the space is scheduled Occupied, but sensors detect there are no humans in the space. In this case the occupied heating and cooling setpoints are relaxed by the Standby Offset [SO]. When the Standby input is active, the economizer is controlled to its fully-closed position. The value of the Standby Offset [SO] may be set between a minimum of 0 and a maximum of 12 degrees.

Examples: If [:CS] = 72, [:HS] = 69, and [SO] = 4 then the setpoints are relaxed to [:CS] = 76, and [:HS] = 65.

Occupied Standby state, wired contacts

A door/window contact, light switch, or PIR is wired to the standby input BI-1. The switch polarity normally open/normally closed is configured by BV-3 [uL]. Set BV-3 inactive for normally open contacts, active for normally closed contacts. When the controller is in the Occupied state and the Standby input (BI-1) is triggered, the room status switches to Occupied Standby state (refer to Standby Heating and Cooling calculated Setpoints above). A BMS can also be configured to monitor BI-1 for door/window ajar alarms.

Standby logic: In Standby state, BI-1 is active (e.g. a window is open). BV-4 is active and the value of the Standby Offset, [SO] AV-19, is transferred to the Demand Offset, AV-106. The [SO] AV -19 default is 4, the minimum is 0, and the maximum is 12.

Occupied Standby state, wireless contacts (TB3026B-W only)

The wireless-controller interface sets BV-149 active. BV-149 in the active state overrides the wired input at BI-1, which no longer has standby control functionality. If normal standby operation is required, BV-148 should be set to inactive allowing BI-1 to have standby control as it does on the non-wireless version. Any of up to 3 wireless PIR motion sensors can be configured and paired to the controller to sense room occupancy. Any of up to 8 wireless Window/Door sensors can be configured and paired to the controller to monitor open/closed status of windows or doors. When the controller is scheduled Occupied, if any window or door is opened and closed with no motion detected after 180 seconds, the room status switches to Occupied Standby state. The controller returns to the Occupied state when motion is detected. If a door or window is left open for more than 180 seconds, the controller sets to Standby state.

Standby logic: In Standby state, BV-4 is active and the value of the Standby Offset, [SO] AV-19, is transferred to the Demand Offset, AV-106. The [SO] AV-19 default is 4, the minimum is 0, and the maximum is 12.

Optional BI-1 input configuration (TB3026B-W only)

Input BI-1 on the BACnet FF may be used for point monitoring by a BMS.

• A dry contact normally open (e.g., filter status DPS, etc.)

• Standby Offset AV-19 is used by the wireless standby monitoring logic. Do Not set to zero (0).

36

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Installation and Operations Guide

Heat Pumps: Apps 0 and 1 [AP] 0: Air-to-air heat pump and [AP] 1:

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Heating and Cooling Demand

Heating (AV-0) and Cooling (AV-1) signals are generated from the Space Temperature and the current Heating and Cooling Setpoints using a proportional-integral (PI) control algorithm. The two signals are compared, and the smaller one is set to zero to prevent any simultaneous heating and cooling. In the event of a Bad Space Sensor Alarm, both heating and cooling signals are set to zero.

Upon power-up or any transition to Occupied state, the integral component is re-initialized for both the Heating Signal and Cooling Signal PI control loops.

Heating and Cooling Signals — PI settings

The Heating signal PI settings are Heating Signal Kp (AV-41) and Heating Signal Ki (AV-42). The Cooling Signal PI settings are Cooling Signal Kp (AV-43) and Cooling Signal Ki (AV-44).

Compressor Control

Reversing Valve

The reversing valve does not change positions until the compressor has been OFF for at least 60 seconds. The reversing valve is set to the heating position (ON) when the heating signal exceeds 10 and the heating lockout is OFF. Otherwise the reversing valve is in the cooling position. Anti-cycle protection prevents the valve from changing positions more than once every two minutes. Some air-to-air heat pumps require the reversing valve to be activated in order to have the coil in Cooling mode. For cooling with the reversing valve active (ON), change [HC] or BV-21 to reverse the valve action.

AC-HP Control Mode (AV-40 set to 1)

The compressor commanded cycles ON when the current value of the compressor control signal is equal to or greater than the compressor start demand setpoint. The compressor command remains ON until the control signal drops below the stop setpoint. The compressor command setpoints are adjustable from the display . When the fan requests AC cooling, BV-7 is ON. When BV-7 is OFF, the fan stops after a short delay. The compressor will not start unless the fan is ON. An anti-cycle timer prevents short-cycling the compressor.

AV-68 AC-HP Compr Start Demand % (set at 20% default). AV-69 AC-HP CMPR Stop Deadband % (default set at 1%) AV-27 is minimum On time MON in minutes (anti-cycle). AV-57 is minimum OFF time MOF in seconds (anti-cycle).

AC-HP control mode (AV-40, default set at 2)

Note AC or HP mode 1= ON-OFF (Demand Compare Control), 2= Analog to

Binary Cycle Time Control.

The compressor control signal is selected between the Heating signal and the Cooling signal, depending on the status of the Heating/Cooling mode.

Installation and Operations Guide

For Heating mode, the compressor signal ranges 0-100 as the Heating signal ranges 0-65. The Heating signal range 65-100 is reserved for auxiliary heat control.

For Cooling mode, the compressor signal ranges 0-100 as the Cooling signal ranges 0-100.

The compressor cycles ON for a percentage of the Compressor Cycle Time [Cc] according to the current value of the compressor-control signal. The Compressor Cycle Time [Cc] is adjustable from the display. Recommended cycle time range is 6-12 minutes. The compressor does not start unless the fan is ON. When the reversing valve changes position, there is a short delay before compressor operation is allowed. The Cooling or Heating Signal is processed by an analog-to-binary timer that controls the BO’s ON/OFF duration. Runtime and compressor starts are accumulated.

When either the Cooling Lockout is ON or the Low-Supply-T emperature Alarm is ON, the compressor-control signal is set to zero, disabling the compressor without overriding the minimum ON time. The cooling lockout setting is controlled by [cL]. A normally-open condensate sensor can be connected across BI-2. If BI-2 is shorted (indicating condensate is sensed) AI-2 reads 572. Compressor operation is locked out until the condensate alarm lock out clears.

BACnet FF

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When the Heating Lockout is ON, the compressor control signal is set to zero. The heating lock out temperature is controlled by the [hL] setting.

Compressor timing

Cycle times and minimum on/off times need to be set for operation of the heat-pump compressor.

Water source [AP] 1

The compressor control (BV-31 WS HP Water Loop OK) must be enabled from the display or a BMS, ensuring that the water-source temperature is within the operating range for the heat pump and that water is flowing in the water-source loop. Heat Pump safeties need to be hard wired with the compressor’s binary output. The control sequence is identical to the air-to-air heat pump.

Staged auxiliary heating

Auxiliary heating is controlled by the upper portion of the Heating Signal range. The auxiliary heat signal ranges 0-100 as the Heating Signal ranges 65-100. Auxiliary heating is staged ON for a percentage of each set Heating-Cycle period [Hc] based on the value of the auxiliary heat signal. [Hc] operation is locked out when the outside-air temperature is above the Auxiliary Heating Lockout Temperature [hL]. Runtime is accumulated for auxiliary heating.

• AV-26 [Cc] AC-HP Compressor Cycle Time: (CYC) time in minutes (factory default = 12 minutes)

• AV-27 [cc] AC-HP Compressor Minimum ON-OFF: (MON) and (MOF) time in minutes (factory default = 3 minutes)

38

High and low refrigerant pressure cutouts must be separately provided, preferably hard-wired, to stop compressor operation in the event of these conditions. Outdoor coil defrost control and any provisions to allow oil sump

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Installation and Operations Guide

Heat Pumps: Apps 0 and 1 [AP] 0: Air-to-air heat pump and [AP] 1:

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heaters to be effective must also be included in the equipment manufacturer’s controls or otherwise provided for.

Single-stage auxiliary heating

Auxiliary heat responds to the range of 65-100 of the Heating signal.

Staged heating timing

Cycle times and minimum on/off times need to be set for operation of the electric heating stages. Staged heating will not run if either of the following two values are zero.

• A V-28 [Hc] Heating Stages Cycle Time: (CYC) time in minutes (factory default = 3 minutes)

• AV-29 [hc] Heating Stages Minimum ON-OFF: (MON) and (MOF ) time in minutes. (factory default = 1 minute)

Compressor and Heating-stages Binary Control

DDC cycles the output ON for a percentage of each cycle time (CYC), based on a 0.0 to 100.0 analog input control signal. For example, if the control signal is

75.0, then the output will be ON only for the first 75% of the cycle time. The minimum ON time (MON) and minimum OFF time (MOF) prevent short

cycling. The output turns ON only if the calculated ON time is greater than the MON. If the output is ON, it remains ON until it has been ON for the calculated ON time and the MON has expired. The output remains ON continuously if the calculated OFF time is less than the MOF.

• Inputs must be positive numbers.

• Time resolution is 1 second

• CalculatedOnTime = CycleTime (Input/100.0)

• CalculatedOffTime = CycleTime minus CalculatedOnTime

Air stratification and humidity control in Unoccupied state (optional)

Set BV-53 active to enable additional humidity control during Unoccupied Mode. A humidity trigger setpoint is entered as AV-30, with humidity dead band entered as AV-31. When sensed humidity equals or exceeds humidity trigger setpoint, the fan cycles ON/OFF at low speed until sensed humidity drops below the trigger setpoint minus the dead band.

Example: If AV-30 is set for 75 and AV-31 is set for 5: The fan will cycle when the space humidity is >= 75 and continue to cycle until the space humidity drops below 70.

The fan cycles ON for AV-48 seconds (default 1800) and OFF for AV-47 seconds (default 300) when stratification and humidity control is active.

Installation and Operations Guide

BACnet FF

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Ta bl e 7 Unoccupied air stratification and humidity controls

Enable RH Fan Circulation Cycle BV-53 Active Unoccupied state Fan ON Cycle Time Low Speed AV-48 1800 Seconds Fan OFF Cycle Time Low Speed AV-47 300 Seconds Sensed Space Humidity %RH AV-105 %RH Humidity Space Humidity %RH Setpoint AV-30 User Value Humi dity Space Humidity %RH Deadband AV-31 User Value Humidity

Economizer sequence (optional)

The economizer logic is enabled when Economizer Damper Stroke Time [ES] AV-63 is set to 5 seconds or above. If the economizer option will not be used, [ES] AV-63 should be set to 0 (factory default); this will prevent the economizer relays from clicking. If the analog modulating option is to be used, [ES] AV-63 should be set to 5. The economizer sequence requires that a supply air sensor be wired to AI-2.

Point Value Units

As the Cooling signal varies between 0 and 30, the economizer command varies between the current minimum position [AV-66] and full open position. When either the Occupied command or the After-hours Timer is ON, the current minimum position [AV-66] is set to the specified Economizer Minimum Position; otherwise it is zero. The default minimum position is 20. The Economizer Minimum Position is set to zero if the fan is OFF.

The economizer minimum position will only work when "Schedule Mode " is configured as "Setpoint Mode". It will be forced to the current minimum position when any of the following are true:

• Outside Air Temperature goes above the Economizer Lockout

• Supply Temperature goes below the Low Supply Temperature Limit

• the unit is in Heat Mode

The Economizer Damper Stroke Time [ES] is used in combination with the current economizer commanded position to estimate the actual current position of the economizer damper. A BMS is required to set the values for AV-60, AV-66, and AV-67.

Analog modulating economizer

The economizer is controlled directly by the economizer command output on AO-0.

Temperature [AV-67]

[AV-60]

3-point floating motor economizer

The economizer is controlled directly by the economizer command. As the command signal increases, BO-4 is active, driving the economizer open. As the command signal decreases, BO-5 is active, driving the economizer closed.

40

31-00098-01 © Ho neywell

Installation and Operations Guide

Heat Pump Alarms

If the Supply Temperature (AI-2) drops below the Supply Air Low Temp Limit [LL] for more than 20 seconds, the Lo Limit Alarm (BV-20) is triggered. The alarm automatically resets when the Supply T emperature exceeds the Supply Air Low Temp Limit [LL] by 7 degrees and the Supply Temperature remains above the Supply Air Low Temp Limit [LL] for 10 minutes. The Supply Air Low T emp Limit [LL] default is 40º F (5º C).

When condensate is sensed, e.g., BI-2 is shorted (active), AI-2 reads 572. Compressor operation is locked out until the condensate alarm lock out clears.

Space Temperature Alarms

A Bad Space-Sensor Alarm is activated if the room-temperature sensor indicates a temperature greater than 120°F/50°C or less than 40°F/5°C.

Runtimes

Separate runtimes are accumulated for the fan and the filter based on fan operation. The runtimes can be reset independently in the event of filter replacement. A filter alarm, BV-16, is triggered if the filter runtime exceeds the filter-alarm setpoint. AV-86 will reset the runtime on the filter.

Heat Pumps: Apps 0 and 1 [AP] 0: Air-to-air heat pump and [AP] 1:

|

English/Metric units configuration

The display contains adjustment arrows to change the controller’s main display for English “F” or Metric “C”. The controller internal units English or Metric are set by BV-71. BV-71 is set to inactive (default) for English or active for Metric. Selecting either adjustment arrow will update the display units F or C. Setting BV-8 (Lock Display Units Swap) to active will display the opposite units as indicated by BV-71 and will lock out changes to the display.

Figure 18 Display: Metric (C) or English (F); Fan Auto (Au) or Fan Manual (On)

Note BV-55 controls Fan Auto/Fan ON display. Setting BV-55 inactive hides

Fan Auto/Fan ON. Setting BV-55 active shows Fan Auto/Fan ON status. If BV-55 is inactive, BV-58 inactive/active control by BMS toggles Fan Auto/Fan/ON.

Installation and Operations Guide

Ta bl e 8 Setup codes: [AP] 0 or [AP] 1

Code Object Default Options Units Notes

AP AV-49 Application selection 0-1 0-18 OE BV-2 Outputs enable OFF OFF/ON Set to ON to enable outputs HC BV-21 Rev Vlv Action HP or

4PHTG

FC AV-17 Fan1=Cont 2=CycHtg

3=CycHtgClg CC AV-26 AC-HP Compr Cycle Time 12 Min C0 AV-27 AC-HP Compr Min ON 3 Min CF AV-18 AC-HP Compr Min OFF 3 Min hC AV-28 Heating Stages Cyc Time 12 Min h0 AV-29 Heating Stages Min ON 3 Min hF AV-80 Heating Stages Min OFF 3 Min 2C AV-37 2 Pos Valves Cyc Time 3 Min 2c AV-38 2 Pos Valves Min ON 1 Min c5 AV-64 Clg or 2-pipe Valve Stroke

Time

h5 AV-65 Htg Valve Stroke Time 3 Sec Heating Valve Stroke Time:

2P AV-34 2PVlvMode 1=ON-OFF

2=ABOT 3=TMV FA BV-55 Enable Fan CTL Display OFF OFF/ON cL AV-70 Cooling Lockout Temp 55 Deg

BACnet FF

|

OFF OFF/ON Apps 0-3, 6-9 & 17.

1 1,2,3

3 Sec Cooling Valve Stroke Time:

2 1,2,3

Value<=3 disables 3-point floating binary output

hL AV-72 Heating Lockout Temp 62 Deg P5 BV-47 Enable AI-0 Sensor OFF OFF/ON 5r BV-32 Enable Remote Space

Sensor F1 AV-46 Auto Fan Start Demand % 20 % Fan demand is based on AV-0 or

F5 AV-5 Fan Stop Delay Seconds SP15 Sec

F2 AV-85 Medium Speed Fan Start SP40 % Do not set less than AV-46 + 5

F3 AV-89 High Speed Fan Start SP 70 % Do not set less than AV-85 + 5 uL BV-3 Rev Standby Logic BI-1 OFF OFF/ON 50 AV-19 Standby Htg Offset Deg SP AV-90 Occupied Space Setpoint 70 70 Deg HI AV-91 Setpoint High Limit 78 78 Deg

42

OFF OFF/ON

AV-1 % signal

31-00098-01 © Ho neywell

Installation and Operations Guide

Ta bl e 8 Setup codes: [AP] 0 or [AP] 1

Code Object Default Options Units Notes

LO AV-92 Setpoint Low Limit 62 62 Deg CO AV-93 Cooling Offset 2 2 Deg HO AV-94 Heating Offset 1 1 Deg UC AV-95 Unoccupied Clg Setpoint 85 85 Deg UH AV-96 Unoccupied Htg Setpoint 55 55 Deg AL AV-97 After Hours Limit 4 4 Hours

Ta bl e 9 Requires BMS to set

Code Point Value Default Options Units Notes

BV-102 Show SYSTEM

control

Heat Pumps: Apps 0 and 1 [AP] 0: Air-to-air heat pump and [AP] 1:

|

Active Inactive/Active A visible SYSTEM Block may or

may not be required with schedules. SYSTEM Block “OFF” overrides scheduled occupied states to unoccupied.

AV-123 Schedule

Model

BV-12 Dehumidify

Mode On

BV-27 Heating

Lockout

BV-28 Cooling

Lockout

BV-31 WS HP Water

Loop OK

BV-53 Enable RH Fan

Circ Cycle

BV-71 English

(OFF)/Metric (ON)

AV-20 Standby Delay

Seconds

BV-56 Enable BMS

Scheduling

BV-53 Enable RH%

Fan Circ Cycle

AV-30 Dehumidify

Setpoint Trigger

0

Inactive Inactive/Active Enables dehumidification App 10

Inactive Inactive/Active

Active Inactive/Active BMS enable allows heat pumps to

OFF OFF/ON

OFF OFF/ON System level settings impact DDC

180 180 Sec

Inactive Inactive/Active Overrides BV-133 internal

Inactive Inactive/Active

100 30-100 %RH When set to a system set point

0 = Occupancy 1,2 = Setpoint

Sets mode as Occupancy or Setpoint.

or with BV-53 enables dehumidification setpoint control with unoccupied dehumidification fan cycles

run App 1 Active

temperature control settings and are not used for display settings.

schedules

usable value to enable dehumidification control when BV-12 or BV-12 & BV-55 are active

Installation and Operations Guide

Ta bl e 9 Requires BMS to set

Code Point Value Default Options Units Notes

AV-31 Humidity Reset DB5 5 %RH Works with AV-30and BV-53

BACnet FF

|

BV-9 Enable

Communication Failure

BV-10 Enable System

OFF

AV-40 AC HP Mode 2 1,2 Setting 1, emulates thermostat

AV-41 Heating Signal Kp20

AV-42 Heating Signal Ki1

AV-43 Cooling Signal Kp20

AV-44 Cooling Signal Ki1

AV-46 Auto Fan Start

Demand %

AV-47 RH Circ OFF

Time

AV-48 RH Circ ON

Time

AV-53 Auto Fan Stop

Deadband SP

AV-60 Supply Air Low

Temp Limit

Inactive Inactive/Active Set active to auto fail to occupie d

on MS/TP comm failure

Inactive Inactive/Active

control. Setting 2, analog to BIN control.

20 %

1800 Sec Unoccupied state fan

dehumidification OFF cycle time

300 Sec Unoccupied state fan

dehumidification ON cycle time

5 % Settings for all single speed fan

applications

45 Deg

44

AV-61 Supply Temp.

High Limit

AV-63 Econ. Damper

Stroke Time

AV-66 Economizer

Min Position

AV-67 Economizer

Lockout Temp AV-77 Filter Alarm SP 3000 Hours AV-78 2PVlvMode Set

DB% AV-79 2PVlvMode

Reset DB% BV-105 Show

Unoccupied

Htg/Clg SPs

78 Deg

0 6-nnn Sec AV-63 Set to zero (0) to stop relay

20 0-100 %

68 68 Deg

20 20-100

11-25

Active Active/Inactive

31-00098-01 © Ho neywell

outputs if BO not used.

Installation and Operations Guide

Ta bl e 9 Requires BMS to set

Code Point Value Default Options Units Notes

BV-210 Enable Custom

Screen BV-215 URHC Enable Active Inactive hides F/C sele ction BV-219 LLHC Enable Active Do Not

BV-222 LRHC Enable Active Do Not

Heat Pumps: Apps 0 and 1 [AP] 0: Air-to-air heat pump and [AP] 1:

|

Active Inactive hides custom screen

options

DDC control

Change

DDC control

Change

BV-262 URHC Adi

Arrows BV-276 LRHC Adi

Arrows MV-8 OFF 1 Do Not

MV-9 F1 5 Do Not

MV-10 F2 5 Do Not

MV-11 F3 4 Do Not

MV-21 Mode

1-Numeric,

2-Alpha

Numeric MV-22 Mode

1-Numeric,

2-Alpha

Numeric MV-23 Mode

1-Numeric,

2-Alpha

Numeric

Active Do Not

Change

Active Do Not

Change

2Do Not

Change

2Do Not

Change

2Do Not

Change

DDC control

AV-218 URHC delta 1 Do Not

Change

AV-216 URHC Up

Arrow Max AV-217 URHC Down

Arrow Min AV-230 LRHC Up

Arrow Max AV-231 LRHC Down

Arrow Min AV-232 LRHC Delta 1 Do Not

1Do Not

Change

2Do Not

Change

1Do Not

Change

2Do Not

Change

Installation and Operations Guide

BACnet FF

|

Heat Pumps: Apps 2 and 3

[AP] 2: Air-to-air heat pump and [AP] 3: Water source heat pump

Single-speed fan with binary output start/stop. optional analog variable-speed fan control, 2-stage auxiliary heat, and analog economizer.

Fan mode control (AV-17)

• 1 = continuous

• 2 = cycle with heating

• 3 = cycle with heating/cooling

Configurable Occupancy Modes

• SYSTEM Block: AUTO/OFF selection (Occupied/Unoccupied)

• Occupancy mode (AV-123=0, default): Schedules Occupancy states

Inputs and Outputs

• Setpoint mode (AV-123=1): Schedules Setpoints

• Dual setpoint mode (AV-123=2): Dual setpoints when Occupied

• Internal schedules enabled when BV-133 is active or ISU 160=4

• BMS schedules enabled when BV-56 is active

Table 10 Inputs and Outputs: [AP] 2 and [AP] 3

Point Function

AI-0 Optional:

Use as space sensor in place of the internal space sensor AV-104 (Set BV-32 active and BV-47 inactive)

Use as an outdoor-air sensor; maps to display

AV-103 (Set BV-47 active and BV-32 inactive) BI-1 Optional standby input (for PIR/door/window sensors) AI-2 Supply-air sensor (optional, but required for

economizer option) BI-2 Optional normally-open condensate sensor BO-0 Fan BO-1 Heat-pump compressor

46

BO-2 Reversing valve BO-3 Heating stage 1

31-00098-01 © Ho neywell

Installation and Operations Guide

Fan

HP Cmpr

Rev Vlv

Htg Stg 1

Htg Stg 2

Econ

Controller Terminations

HPH2 AP 3

GND

5

BO 0

BO 1

BO 2

BO 3

BO 4

BO 5

G

Y1

O/B

W1

W2

EC

0-10Vdc

4-20ma

AO 0

C

RC24VAC

1

24V

Com

EC

AO 1

Com

14

BI/AI 1

COM

BI/AI 2

COM

BI/AI 0

Sensor *

SA Sensor

Optional Standby

N.C. or N.O.

Optional

Condensate

alarm or fail

VC

VFD /SCR

4-20ma

* Optional space or outside temperature sensor.

Table 10 Inputs and Outputs: [AP] 2 and [AP] 3

Wiring diagrams

Controller Terminations

RC24VAC

C

O/B

W1

W2

G

Y1

EC

EC VC

0-10Vdc

4-20ma

HPH2 AP 2

Fan

HP Cmpr

Rev Vlv

Htg Stg 1

Htg Stg 2

Econ

VFD /SCR

Sensor *

SA Sensor

24V

Com

GND

BO 0

BO 1

BO 2

BO 3

BO 4

BO 5

AO 0 Com

14

AO 1

BI/AI 0

COM

BI/AI 1

COM

BI/AI 2

1

5

Heat Pumps: Apps 2 and 3 [AP] 2: Air-to-air heat pump and [AP] 3:

|

Point Function

BO-4 Heating stage 2 BO-5 Not used AO-0 Economizer (optional) AO-1 Analog fan speed (optional)

Optional Standby

N.C. or N.O.

Optional Condensate alarm or fail

* Optional space or outside temperature sensor.

Figure 19 Controller terminations: [AP] 2, [AP] 3

Sequences of Operation

Controller outputs are disabled when Enable Outputs [OE] BV-2 OFF/ON is in

SYSTEM Block Control (BV-102)

the OFF (inactive) state. Do not enable outputs until you are certain the wiring and configuration is correct and complete.

When the unit is configured to run in Occupancy Mode, the SYSTEM Block allows the user direct control of occupied or unoccupied state from the controller display. Selecting “Auto” places the controller in Occupied state. Selecting “OFF” places the controller in unoccupied state.

The SYSTEM Block can be hidden by setting BV-102 inactive. When the SYSTEM Block is hidden occupancy states are controlled exclusively by the onboard or BMS schedules.

Installation and Operations Guide

If onboard or BMS schedules are enabled, the “OFF” selection will override the controller’s scheduled state and force the unit into Unoccupied state. If you do not want the user to have this ability, set BV-102 inactive to hide the SYSTEM Block.

You can optionally change the behavior of the SYSTEM Block “OFF” setting so that instead of placing the controller in the Unoccupied state, the controller will turn the fan off. Heating and cooling are disabled when the fan is off. The fan will remain off until the user changes the SYSTEM Block to “Auto.” Set BV-10 to active to allow this option.

BACnet FF

|

Figure 20 Display: SYSTEM Block OFF; SYSTEM Block AUTO

Configure schedules

The BACnet FF can be configured to follow an internal schedule by setting ISU parameter 160 or BV -133. The BACnet FF may also be scheduled by a BMS. Set BV-56 to active to enable BMS schedules. BV-133 changes to inactive when BV-56 is active.

If the internal schedule is OFF, the user can adjust the setpoint (within setpoint limits).

Schedules are stored in flash memory so they persist through power cycles.

Occupancy control (AV-123 = 0, default)

The controller operates in Occupied state when the Occupied Command (BV -64) is turned ON by any of the following:

• When the controller’s SYSTEM Block “AUTO” is selected by the user

• By local internal schedule, which writes to BV-40 at priority 16

• By a command sent from a BMS schedule or BMS operator override, writing to BV-40.

Note If the user is allowed to command the SYSTEM Block, this

command is at priority 10. BMS schedules should write to one of the BV-40 priorities 12-16 to avoid overriding the user command.

48

• When the occupant has initiated an aft er-hours override by pressing the override arrows on the touch screen.

The Unoccupied Setpoints are activated when the controller’s SYSTEM Block is set to “OFF” by the user.

31-00098-01 © Ho neywell

Installation and Operations Guide

When operating in the Unoccupied state, the override up/down arrows can be pressed to force the controller into the Occupied state for up to 4 hours (default value). The override time limit (AV-97) is adjustable from a minimum of 0.2 hours to a maximum of 9.5 hours.

Setting BV-9 to active enables the controller to default to Occupied state whenever communication with the BMS is lost continuously for more than 5 minutes. The command to Occupied state is implemented by setting BV-64 to active.

Occupied, Unoccupied, and Standby Heating and Cooling Setpoints

When operating in the Unoccupied state, the cooling and heating setpoint revert to specific values:

When operating in the Occupied state, the cooling and heating setpoints are calculated as offsets from the user adjustable Space Setpoint (AV-90):

Heat Pumps: Apps 2 and 3 [AP] 2: Air-to-air heat pump and [AP] 3:

|

• Current Cooling Setpoi nt (AV-99) = Unoccupied Cooling Setpoint (AV-95)

• Current Heating Setpoint (AV-100) = Unoccupied Heating Setpoint (AV-96)

• Current Cooling Setpoi nt (AV-99) = AV-90 plus AV-93 plus Demand Offset (AV-106)

• Current Heating Setpoint (AV-100) = AV-90 minus AV-94 minus Demand Offset (AV-106)

When operating in the Standby mode, the Current Cooling Setpoint and Current Heating Setpoint are calculated as for occupied mode as described above. However the standby offset ([SO]:, AV-19) is transferred to the Demand Offset (AV-106) before the computations, resulting in relaxed setpoints during standby operation.

User adjustment of the Space Setpoint (AV -90) value is limited by the Setpoint High Limit (AV-91) and the Setpoint Low Limit (AV-92).

Ta bl e 11 Setpoint values in Occupancy control

Field Code De scription

[:SP] AV-90 Space Setpoint [:HI] AV-91 Setpoint High Limit [:LO] AV-92 Setpoint Low Limit [:CO] AV-93 Cooling Setpoint Offset [:HO] AV-94 Heating Setpoint Offset [:UC] AV-95 Un occupied Cooling Setpoint [:UH] AV-96Unoccupied Heating Setpoint

Installation and Operations Guide

Ta bl e 11 Setpoint values in Occupancy control

Field Code De scription

[CS] AV-99 current calculated Cooling Setpoint [HS] AV-100 current calculated Heating Setpoint

-- AV-106 demand offset (AV-106 value updates AV-99, AV-100) [SO] AV-19 standby offset; 0 minimum, 6 maximum degrees DDC transfers value to

AV-106

Setpoint control (AV-123 = 1)

In setpoint mode, the controller logically emulates residential thermostats. The space temperature is controlled to "SP Mode Cooling SP" (AV-108) and "SP Mode Heating SP" (AV-109). These setpoints are writable using BACnet. Each schedule period consists of a start time, a heating setpoint, and a cooling setpoint. The maximum number of periods per day is configured using ISU parameter 540 (AV-129). A value of 2 specifies two periods per day -- Wake and Sleep. A value of 4 specifies four periods per day -- Wake, Leave, Return, and Sleep. The scheduler selects the last valid period start before the present time as the period to use. Setpoint mode schedules are not accessible using BACnet. The only way to view, edit and save a schedule is from the unit's LCD screen.

BACnet FF

|

Note Setpoints are writable using BACnet but schedules are not accessible

using BACnet.

If the Standby mode is active, the heating and cooling setpoints are adjusted by the standby offset ([SO]:, AV-19).

Note The SYSTEM Block is hidden when the controller is in Setpoint control

mode.

Figure 21 Setpoint mode display: single-speed fan

50

Schedule setpoint overrides in Setpoint mode

An override is created using one of three modes. Temporary- press an arrow next to a setpoint. The words "Hold Temperature

Unit" appear above the time display, which shows the default ending time (the

31-00098-01 © Ho neywell

Installation and Operations Guide

beginning of the next schedule transition). Use the arrows to adjust the ending time. Wait a few seconds. The arrows next to the ending time disappear and the override takes effect.

Permanent- press HOLD. The words “Permanent Hold" appear below the time display and the override takes effect.

Vacation- while in Permanent Hold, press HOLD. The words "Hold Temperature Unit" appear above the time display. Use the arrows to select the number of days (1-365) you want to override to last. Wait a few seconds. The arrows next to the ending time disappear and the override takes effect.

Pressing CANCEL returns the BACnet FF to the current schedule. The Setpoint mode override status (AV-113 and MV-13), hold until time

(AV-130), and the number of vacation days left (AV-130) can be adjusted remotely using BACnet or by DDC.

Note A user's ability to set Permanent or Vacation holds can be disallowed by

setting BV-115 and BV-130, respectively.

Dual setpoint mode (AV-123 = 2)

In dual setpoint mode, the following quantities are used:

Heat Pumps: Apps 2 and 3 [AP] 2: Air-to-air heat pump and [AP] 3:

|

• Occupied Heating SP (AV-109)

• Occupied Cooling SP (AV-108)

• Unoccupied Heating SP (AV-96)

• Unoccupied Cooling SP (AV-95)

• Heating SP Limit (how high the heating setpoint can be set) (AV-92)

• Cooling SP Limit (how low the cooling setpoint can be set) (AV-91)

AV-109 and AV -108 are used to control Occupied Cooling and Occupied Heating Setpoints. Both are writable using BACnet or the device screen. When the space is occupied (BV-67 = Active), AV-109 and AV-108 are transferred to the current heating and cooling setpoints (AV-100 and AV-99).

IMPORTANT! DDC sh ould not use AV-109 or AV-108 directly. When the space is unoccupied, the Unoccupied Heating and Cooling Setpoints

(AV-96 and AV-95) get transferred to the current heating and cooling setpoints (AV-100 and AV-99). The Unoccupied heating and cooling setpoints are not user-adjustable but they are adjustable using field service mode or an operator

Installation and Operations Guide

Figure 22 Dual setpoint display in Occupied mode: occupied heating setpoint AV-109, user-adjustable and occupied cooling setpoint AV-108, user-adjustable.

BACnet FF

|

workstation. Unoccupied heating and cooling setpoints are not transferred to AV-109 and AV-108 during unoccupied periods.

Note Use the MORE key to view OSA temperature and humidity values on

subsequent screens.

Fan mode control

Writes to AV-109 and AV-108 are limited by the Setpoint High and Low Limits (AV-91 and AV-92). Writes to AV-109 and AV-108 are also limited to the heating setpoint less than the cooling setpoint by a minimum of one degree.

Figure 23 Setpoint mode display: single-speed fan

Occupancy mode

During occupancy mode the fan operates based on the select ed Fan Mode .

52

• Fan Control AV-17 = 1: Fan runs continuously for ventilation.

• Fan Control AV-17 = 2: Fan runs continuously for cooling and cycles on for heating demand. When in Cooling mode, the fan runs continuously.

31-00098-01 © Ho neywell

Installation and Operations Guide

Heat Pumps: Apps 2 and 3 [AP] 2: Air-to-air heat pump and [AP] 3:

|

When in Heating mode, the fan cycles on only when the heating signal calls for the fan to run.

• Fan Control AV-17 = 3: Fan cycles on when cooling or heating is selected or during Unoccupied mode only when called to run by cooling or heating demand.

Setpoint mode

• AV-227 =1: Fan cycles on for cooling and for heating demand.

• AV-227 =2: Fan runs continuously.

Analog fan speed control (optional)

The fan speed analog output AO-1 will ramp from 0-100% based on the heating or cooling signal demand.

Note Variable speed drives run at minimum motor RPM even if AO-1 is zero

when in run mode.

Standby Heating and Cooling setpoints

Standby state is a power-saving function of Occupancy mode. It occurs when the space is scheduled Occupied, but sensors detect there are no humans in the space. In this case the occupied heating and cooling setpoints are relaxed by the Standby Offset [SO]. When the Standby input is active, the economizer is controlled to its fully-closed position. The value of the Standby Offset [SO] may be set between a minimum of 0 and a maximum of 12 degrees.

Examples: If [:CS] = 72, [:HS] = 69, and [SO] = 4 then the setpoints are relaxed to [:CS] = 76, and [:HS] = 65.

Occupied Standby state, wired contacts

A door/window contact, light switch, or PIR is wired to the standby input BI-1. The switch polarity normally open/normally closed is configured by BV-3 [uL]. Set BV-3 inactive for normally open contacts, active for normally closed contacts. When the controller is in the Occupied state and the Standby input (BI-1) is triggered, the room status switches to Occupied Standby state (refer to Standby Heating and Cooling calculated Setpoints above). A BMS can also be configured to monitor BI-1 for door/window ajar alarms.

Standby logic: In Standby state, BI-1 is active (e.g. a window is open). BV-4 is active and the value of the Standby Offset, [SO] AV-19, is transferred to the Demand Offset, AV-106. The [SO] AV -19 default is 4, the minimum is 0, and the maximum is 12.

Occupied Standby state, wireless contacts (TB3026B-W only)

The wireless-controller interface sets BV-149 active. BV-149 in the active state overrides the wired input at BI-1, which no longer has standby control functionality. If normal standby operation is required, BV-148 should be set to inactive allowing BI-1 to have standby control as it does on the non-wireless version. Any of up to 3 wireless PIR motion sensors can be configured and paired to the controller to sense room occupancy. Any of up to 8 wireless Window/Door sensors can be configured and paired to the controller to monitor open/closed status of windows or doors. When the controller is scheduled Occupied, if any window or door is opened and closed with no motion detected

Installation and Operations Guide

after 180 seconds, the room status switches to Occupied Standby state. The controller returns to the Occupied state when motion is detected. If a door or window is left open for more than 180 seconds, the controller sets to Standby state.

Standby logic: In Standby state, BV-4 is active and the value of the Standby Offset, [SO] AV-19, is transferred to the Demand Offset, AV-106. The [SO] AV-19 default is 4, the minimum is 0, and the maximum is 12.

Optional BI-1 input configuration (TB3026B-W only)

Input BI-1 on the BACnet FF may be used for point monitoring by a BMS.

Heating and Cooling Demand

Heating (AV-0) and Cooling (AV-1) signals are generated from the Space Temperature and the current Heating and Cooling Setpoints using a proportional-integral (PI) control algorithm. The two signals are compared, and the smaller one is set to zero to prevent any simultaneous heating and cooling. In the event of a Bad Space Sensor Alarm, both heating and cooling signals are set to zero.

BACnet FF

|

• A dry contact normally open (e.g., filter status DPS, etc.)

• Standby Offset AV-19 is used by the wireless standby monitoring logic. Do Not set to zero (0).

Upon power-up or any transition to Occupied state, the integral component is re-initialized for both the Heating Signal and Cooling Signal PI control loops.

Heating and Cooling Signals — PI settings

The Heating signal PI settings are Heating Signal Kp (AV-41) and Heating Signal Ki (AV-42). The Cooling Signal PI settings are Cooling Signal Kp (AV-43) and Cooling Signal Ki (AV-44).

Compressor Control

Reversing Valve

The reversing valve does not change positions until the compressor has been OFF for at least 60 seconds. The reversing valve is set to the heating position (ON) when the heating signal exceeds 10 and the heating lockout is OFF. Otherwise the reversing valve is in the cooling position. Anti-cycle protection prevents the valve from changing positions more than once every two minutes. Some air-to-air heat pumps require the reversing valve to be activated in order to have the coil in Cooling mode. For cooling with the reversing valve active (ON), change [HC] or BV-21 to reverse the valve action.

AC-HP Control Mode (AV-40 set to 1)

The compressor commanded cycles ON when the current value of the compressor control signal is equal to or greater than the compressor start demand setpoint. The compressor command remains ON until the control signal drops below the stop setpoint. The compressor command setpoints are adjustable from the display . When the fan requests AC cooling, BV-7 is ON. When BV -7 is OFF, the fan stops after a short delay. The compressor will not start unless the fan is ON. An anti-cycle timer prevents short-cycling the compressor.

54

31-00098-01 © Ho neywell

Installation and Operations Guide

Heat Pumps: Apps 2 and 3 [AP] 2: Air-to-air heat pump and [AP] 3:

|

AV-68 AC-HP Compr Start Demand % (set at 20% default). AV-69 AC-HP CMPR Stop Deadband % (default set at 1%) AV-27 is minimum On time MON in minutes (anti-cycle). AV-57 is minimum OFF time MOF in seconds (anti-cycle).

AC-HP control mode (AV-40, default set at 2)

Note AC or HP mode 1= ON-OFF (Demand Compare Control), 2= Analog to

Binary Cycle Time Control.

The compressor control signal is selected between the Heating signal and the Cooling signal, depending on the status of the Heating/Cooling mode.

For Heating mode, the compressor signal ranges 0-100 as the Heating signal ranges 0-65. The Heating signal range 65-100 is reserved for auxiliary heat control.

For Cooling mode, the compressor signal ranges 0-100 as the Cooling signal ranges 0-100.

Compressor timing

The compressor cycles ON for a percentage of the Compressor Cycle Time [Cc] according to the current value of the compressor-control signal. The Compressor Cycle Time [Cc] is adjustable from the display. Recommended cycle time range is 6-12 minutes. The compressor does not start unless the fan is ON. When the reversing valve changes position, there is a short delay before compressor operation is allowed. The Cooling or Heating Signal is processed by an analog-to-binary timer that controls the BO’s ON/OFF duration. Runtime and compressor starts are accumulated.

When either the Cooling Lockout is ON or the Low-Supply-Temperature Alarm is ON, the compressor-control signal is set to zero, disabling the compressor without overriding the minimum ON time. The cooling lockout setting is controlled by [cL]. A normally-open condensate sensor can be connected across BI-2. If BI-2 is shorted (indicating condensate is sensed) AI-2 reads 572. Compressor operation is locked out until the condensate alarm lock out clears.

When the Heating Lockout is ON, the compressor control signal is set to zero. The heating lock out temperature is controlled by the [hL] setting.

Cycle times and minimum on/off times need to be set for operation of the heat-pump compressor.

• AV-26 [Cc] AC-HP Compressor Cycle Time: (CYC) time in minutes (factory default = 12 minutes)

• AV-27 [cc] AC-HP Compressor Minimum ON-OFF: (MON) and (MOF) time in minutes (factory default = 3 minutes)

Water source [App 3]

The compressor control (BV-31 WS HP Water Loop OK) must be enabled from the display or a BMS, ensuring that the water-source temperature is within the operating range for the heat pump and that water is flowing in the water-source

Installation and Operations Guide

loop. Heat Pump safeties need to be hard wired with the compressor’s binary output. The control sequence is identical to the air-to-air heat pump.

Staged auxiliary heating

Auxiliary heating is controlled by the upper portion of the Heating Signal range. The stage 1 auxiliary heat signal ranges 0-100 as the Heating Signal ranges 65-75. The stage 2 auxiliary heat signal ranges 0-100 as the Heating Signal ranges 75-100. Each auxiliary heating stage is turned ON for a percentage of each set Heating-Cycle period [Hc] based on the respective auxiliary heat stage signal. [Hc] operation is locked out when the outside-air temperature is above the Auxiliary Heating Lockout Temperature [hL]. Runtime is accumulated for each stage of auxiliary heating.

High and low refrigerant pressure cutouts must be separately provided, preferably hard-wired, to stop compressor operation in the event of these conditions. Outdoor coil defrost control and any provisions to allow oil sump heaters to be effective must also be included in the equipment manufacturer’s controls or otherwise provided for.

2-stage auxiliary heating

The first stage of heat responds to the range 65-75 of the Heating signal. The second state of heat responds to the range 75-100 of the Heating signal.

BACnet FF

|

Staged heating timing

Cycle times and minimum on/off times need to be set for operation of the electric heating stages. Staged heating will not run if either of the following two values are zero.

• A V-28 [Hc] Heating Stages Cycle Time: (CYC) time in minutes (factory default = 3 minutes)

• AV-29 [hc] Heating Stages Minimum ON-OFF: (MON) and (MOF ) time in minutes (factory default = 1 minute)

Compressor and Heating-stages Binary Control

DDC cycles the output ON for a percentage of each cycle time (CYC), based on a 0.0 to 100.0 analog input control signal.

Example: If the control signal is 75.0, then the output will be ON only for the first 75% of the cycle time.

The minimum ON time (MON) and minimum OFF time (MOF) prevent short cycling. The output turns ON only if the calculated ON time is greater than the MON. If the output is ON, it remains ON until it has been ON for the calculated ON time and the MON has expired. The output remains ON continuously if the calculated OFF time is less than the MOF.

• Inputs must be positive numbers.

56

• Time resolution is 1 second

• CalculatedOnTime = CycleTime (Input/100.0)

• CalculatedOffTime = CycleTime minus CalculatedOnTime

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Installation and Operations Guide

Heat Pumps: Apps 2 and 3 [AP] 2: Air-to-air heat pump and [AP] 3:

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Air stratification and humidity control in Unoccupied state (optional)

Set BV-53 active to enable additional humidity control during Unoccupied Mode. A humidity trigger setpoint is entered as AV-30, with humidity dead band entered as AV-31. When sensed humidity equals or exceeds the humidity trigger setpoint, the fan cycles ON/OFF at low speed until sensed humidity drops below the trigger setpoint minus the dead band.

Example: If AV-30 is set for 75 and AV-31 is set for 5: The fan will cycle when the space humidity is >= 75 and continue to cycle until the space humidity drops below 70.

The fan cycles ON for AV-48 seconds (default 1800) and OFF for AV-47 seconds (default 300) when stratification and humidity control is active.

Table 12 Unoccupied air stratification and humidity controls

Point Value Units

Enable RH Fan Circulation Cycle BV-53 Active Unoccupied state Fan ON Cycle Time Low Speed AV-48 1800 Seconds Fan OFF Cycle Time Low Speed AV-47 300 Seconds Sensed Space Humidity %RH AV-105 %RH Humidity Space Humidity %RH Setpoint AV-30 User Value Humi dity Space Humidity %RH Deadband AV-31 User Value Humidity

Economizer sequence (optional)

The economizer option is supported by a modulating analog economizer command signal on AO-0. The economizer sequence requires that a supply air sensor be wired to AI-2.

As the Cooling Signal varies between 0 and 30, the economizer command varies between the current minimum position [AV-66] and full open position. When either the Occupied command or the After-hours T imer is ON, the current minimum position [AV-66] is set to the specified Economizer Minimum Position; otherwise it is zero. The default minimum position is 20. The Economizer Minimum Position is set to zero if the fan is OFF.

The economizer minimum position will only work when "Schedule Mode" is configured as "Setpoint Mode". It will be forced to the current minimum position when any of the following are true:

• Outside Air Temperature goes above the Economizer Lockout Temperature [AV-67]

• Supply Temperature goes below the Low Supply Temperature Limit [AV-60]

• the unit is in Heat Mode

A BMS is required to set the values for AV-60, AV-66, and AV-67.

Installation and Operations Guide

BACnet FF

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Heat Pump Alarms

If the Supply Temperature (AI-2) drops below the Supply Air Low Temp Limit [LL] for more than 20 seconds, the Lo Limit Alarm (BV-20) is triggered. The alarm automatically resets when the Supply Temperature exceeds the Supply Air Low Temp Limit [LL] by 7 degrees and the Supply Temperature remains above the Supply Air Low Temp Limit [LL] for 10 minutes. The Supply Air Low T emp Limit [LL] default is 40º F (5º C).

When condensate is sensed, e.g., BI-2 is shorted (active), AI-2 reads 572. Compressor operation is locked out until the condensate alarm lock out clears.

Space Temperature Alarms

A Bad Space-Sensor Alarm is activated if the room-temperature sensor indicates a temperature greater than 120°F/50°C or less than 40°F/5°C.

Runtimes

Separate runtimes are accumulated for the fan and the filter based on fan operation. The runtimes can be reset independently in the event of filter replacement. A filter alarm, BV-16, is triggered if the filter runtime exceeds the filter-alarm setpoint. AV-86 will reset the runtime on the filter.

English/Metric units configuration

The display contains adjustment arrows to change the controller’s main display for English “F” or Metric “C.” The controller internal units English or Metric are set by BV-71. BV-71 is set to inactive (default) for English or active for Metric. Selecting either adjustment arrow will update the display units F or C. Setting BV-8 (Lock Display Units Swap) to active will display the opposite units as indicated by BV-71 and will lock out changes to the display.

Figure 24 Display: English (F) or Metric (C)

Note BV-55 controls Fan Auto/Fan On display. Setting BV-55 inactive hides

Fan Auto/Fan On. Setting BV-55 active shows Fan Auto/Fan On status. If BV-55 is inactive, BV-58 inactive/active control by BMS toggles Fan Auto/Fan/ON.

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Installation and Operations Guide

Table 13 Setup codes: [AP] 2 or [AP] 3

Code Object Default Options Units Notes

AP AV-49 Application selection 2 or 3 0-18 OE BV-2 Outputs enable OFF OFF/ON Set to ON to enable outputs HC BV-21 Rev Vlv Action HP or

4PHTG

FC AV-17 Fan1=Cont 2=CycHtg

3=CycHtgClg CC AV-26 AC-HP Compr Cycle Time 12 Min C0 AV-27 AC-HP Compr Min ON 3 Min CF AV-18 AC-HP Compr Min OFF 3 Min hC AV-28 Heating Stages Cyc Time 12 Min h0 AV-29 Heating Stages Min ON 3 Min hF AV-80 Heating Stages Min OFF 3 Min 2C AV-37 2 Pos Valves Cyc Time 3 Min 2c AV-38 2 Pos Valves Min ON 1 Min c5 AV-64 Clg or 2-pipe Valve Stroke

Time

h5 AV-65 Htg Valve Stroke Time 3 Sec Heating Valve Stroke Time:

2P AV-34 2PVlvMode 1=ON-OFF

2=ABOT 3=TMV FA BV-55 Enable Fan CTL Display OFF OFF/ON cL AV-70 Cooling Lockout Temp 55 Deg

Heat Pumps: Apps 2 and 3 [AP] 2: Air-to-air heat pump and [AP] 3:

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OFF OFF/ON Apps 0-3, 6-9 & 17.

1 1,2,3

3 Sec Cooling Valve Stroke Time:

Value<=3 disables 3-point floating binary output

2 1,2,3

hL AV-72 Heating Lockout Temp 62 Deg P5 BV-47 Enable AI-0 Sensor OFF OFF/ON 5r BV-32 Enable Remote Space

Sensor F1 AV-46 Auto Fan Start Demand % 20 % Fan demand is based on AV-0 or

F5 AV-5 Fan Stop Delay Seconds SP15 Sec

F2 AV-85 Medium Speed Fan Start SP40 % Do not set less than AV-46 + 5

F3 AV-89 High Speed Fan Start SP 70 % Do not set less than AV-85 + 5 uL BV-3 Rev Standby Logic BI-1 OFF OFF/ON 50 AV-19 Standby Htg Offset Deg SP AV-90 Occupi ed Space Setpoint 70 70 Deg HI AV-91 Setpoint High Limit 78 78 Deg

OFF OFF/ON

AV-1 % signal

Installation and Operations Guide

Table 13 Setup codes: [AP] 2 or [AP] 3

Code Object Default Options Units Notes

LO AV-92 Se tpoint Low Limit 62 62 Deg CO AV-93 Cooling Offset 2 2 Deg HO AV-94 Heating Offset 1 1 Deg UC AV-95 Unoccupied Clg Setpoint 85 85 Deg UH AV-96 Unoccupied Htg Setpoint 55 55 Deg AL AV-97 After Hours Limit 4 4 Hours

Table 14 Requires BMS to set

Code Point Value Default Options Units Notes

BV-102 Show SYSTEM

control

BACnet FF

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Active Inactive/Active A visible SYSTEM Block may or

may not be required with schedules. SYSTEM Block “OFF” overrides scheduled occupied states to unoccupied.

AV-123 Schedule

Model

BV-12 Dehumidify

Mode On

BV-27 Heating

Lockout

BV-28 Cooling

Lockout

BV-31 WS HP Water

Loop OK

AV-20 Standby Delay

Seconds

BV-56 Enable BMS

Scheduling

BV-53 Enable RH%

Fan Circ Cycle

AV-30 Dehumidify

Setpoint Trigger

AV-31 Humidity Reset DB5 5 %RH Works with AV-30and BV-53

0

Inactive Inactive/Active Enables dehumidification App 10

Inactive Inactive/Active

Active Inactive/Active BMS enable allows heat pumps to

180 180 Sec

Inactive Inactive/Active Overrides BV-133 internal

Inactive Inactive/Active

100 30-100 %RH When set to a system set point

0 = Occupancy 1,2 = Setpoint

Sets mode as Occupancy or Setpoint.

or with BV-53 enables dehumidification setpoint control with unoccupied dehumidification fan cycles

run. Active App 3.

schedules

usable value to enable dehumidification control when BV-12 or BV-12 & BV-55 are active

60

BV-9 Enable

Communication Failure

Inactive Inactive/Active Set active to auto fail to occupied

on MS/TP comm failure

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Installation and Operations Guide

Table 14 Requires BMS to set

Code Point Value Default Options Units Notes

BV-10 Enable System

OFF

AV-40 AC HP Mode 2 1,2 Setting 1, emulates thermostat

AV-41 Heating Signal Kp20

AV-42 Heating Signal Ki1

AV-43 Cooling Signal Kp20

AV-44 Cooling Signal Ki1

Heat Pumps: Apps 2 and 3 [AP] 2: Air-to-air heat pump and [AP] 3:

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Inactive Inactive/Active

control. Setting 2, analog to BIN control.

AV-46 Auto Fan Start

Demand %

AV-47 RH Circ OFF

Time

AV-48 RH Circ ON

Time

AV-53 Auto Fan Stop

Deadband SP

AV-60 Supply Air Low

Temp Limit

AV-61 Supply Temp

High Limit

AV-63 Econ. Damper

Stroke Time

AV-66 Economizer

Min Position

AV-67 Economizer

Lockout Temp AV-77 Filter Alarm SP 3000 Hours AV-78 2PVlvMode Set

DB%

20 %

1800 Sec Unoccupied state fan

300 Sec Unoccupied state fan

5 % Setting for all single speed fan

45 Deg

78 Deg

0 6-nnn Sec AV-63 Set to zero (0) to stop relay

20 0-100 %

68 68 Deg

20 20-100

dehumidification OFF cycle time

dehumidification ON cycle time

applications

outputs if BO not used.

AV-79 2PVlvMode

Reset DB% BV-105 Show

Unoccupied

Htg/Clg SPs BV-210 Enable Custom

Screen BV-215 URHC Enable Active Inactive hides F/C selection BV-219 LLHC Enable Active Do Not

11-25

Active Active/Inactive

Active Inactive hides custom screen

options

DDC control

Change

Installation and Operations Guide

Table 14 Requires BMS to set

Code Point Value Default Options Units Notes

BV-222 LRHC Enable Active Do Not

BACnet FF

|

DDC control

Change

BV-262 URHC Adi

Arrows

BV-276 LRHC Adi

Arrows

MV-8 OFF 1 Do Not

MV-9 F1 5 Do Not

MV-10 F2 5 Do Not

MV-11 F3 4 Do Not

MV-21 Mode

1-Numeric, 2-Alpha Numeric

MV-22 Mode

1-Numeric, 2-Alpha Numeric

MV-23 Mode

1-Numeric, 2-Alpha Numeric

AV-218 URHC delta 1 Do Not

Active Do Not

Change

Active Do Not

Change

2Do Not

Change

2Do Not

Change

2Do Not

Change

DDC control

62

AV-216 URHC Up

Arrow Max

AV-217 URHC Down

Arrow Min

AV-230 LRHC Up

Arrow Max

AV-231 LRHC Down

Arrow Min

AV-232 LRHC Delta 1 Do Not

1Do Not

Change

2Do Not

Change

1Do Not

Change

2Do Not

Change

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Installation and Operations Guide

Air Conditioning Unit: App 4

1-stage compressor, 1-stage heating, 3-point floating or analog economizer, analog variable-speed fan control.

Fan mode control (AV-17)

• 1 = continuous

• 2 = cycle with heating

• 3 = cycle with heating/cooling

Configurable Occupancy Modes

• SYSTEM Block: AUTO/OFF selection (Occupied/Unoccupied)

• Occupancy mode (AV-123=0, default): Schedules Occupancy states

• Setpoint mode (AV-123=1): Schedules Setpoints

• Dual setpoint mode (AV-123=2): Dual setpoints when Occupied

• Internal schedules enabled when BV-133 is active or ISU 160=4

• BMS schedules enabled when BV-56 is active

Air Conditioning Unit: App 4

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Inputs and Outputs

Table 15 Inputs and Outputs: [AP] 4

Point Function

AI-0 Optional:

Use as space sensor in place of the internal space sensor AV-104 (Set BV-32 active and BV-47 inactive)

Use as an outdoor-air sensor; maps to display

AV-103 (Set BV-47 active and BV-32 inactive) BI-1 Optional standby input (for PIR/door/window sensor) AI-2 Supply-air sensor (optional, but required for

economizer option) BI-2 Normally-open condensate sensor (optional) BO-0 Fan BO-1 Compressor stage 1 BO-2 Not used BO-3 Heating stage 1 (optional) BO-4 Economizer open (optional) BO-5 Economizer close (optional) AO-0 Economizer (optional) AO-1 Analog fan speed (optional)

Installation and Operations Guide

Wiring diagram

BI/AI 0

BI/AI 1

BI/AI 2

BACnet FF

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Controller Terminations

A1H1 AP 4

1

RC24VAC

5

GND

C

BO 0

G

BO 1

Y1

BO 2

BO 3

W1

BO 4

EC

BO 5

EC

VC

0-10Vdc 4-20ma

4-20ma

AO 0

Com

14

AO 1

COM

* Optional space or outside temperature sensor.

Fan

Cmp Stg 1

Htg Stg 1

Econ Opn

Econ Cls

Econ

VFD /SCR

Sensor *

SA Sensor

24V

Com

Optional Standby

N.C. or N.O.

Optional Condensate alarm or fail

Figure 25 Controller terminations: [AP] 4

Sequences of Operation

Controller outputs are disabled when Enable Outputs [OE] BV-2 OFF/ON is in the OFF (inactive) state. Do not enable outputs until you are certain the wiring and configuration is correct and complete.

SYSTEM Block Control (BV-102)

When the unit is configured to run in Occupancy Mode, the SYSTEM Block allows the user direct control of occupied or unoccupied state from the controller display. Selecting “Auto” places the controller in Occupied state. Selecting “OFF” places the controller in unoccupied state.

The SYSTEM Block can be hidden by setting BV-102 inactive. When the SYSTEM Block is hidden occupancy states are controlled exclusively by the onboard or BMS schedules.

If onboard or BMS schedules are enabled, the “OFF” selection will override the controller’s scheduled state and force the unit into Unoccupied state. If you do not want the user to have this ability, set BV-102 inactive to hide the SYSTEM Block.

You can optionally change the behavior of the SYSTEM Block “OFF” setting so that instead of placing the controller in the Unoccupied state, the controller will turn the fan off. Heating and cooling are disabled when the fan is off. The fan

64

31-00098-01 © Ho neywell

Installation and Operations Guide

will remain off until the user changes the SYSTEM Block to “Auto.” Set BV-10 to active to allow this option.

Figure 26 Display: SYSTEM Block OFF; SYSTEM Block AUTO

Configure schedules

The BACnet FF can be configured to follow an internal schedule by setting ISU parameter 160 or BV -133. The BACnet FF may also be scheduled by a BMS. Set BV-56 to active to enable BMS schedules. BV-133 changes to inactive when BV-56 is active.

Air Conditioning Unit: App 4

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If the internal schedule is OFF, the user can adjust the setpoint (within setpoint limits).

Schedules are stored in flash memory so they persist through power cycles.

Occupancy control (AV-123 = 0, default)

The controller operates in Occupied state when the Occupied Command (BV -64) is turned ON by any of the following:

• When the controller’s SYSTEM Block “AUTO” is selected by the user

• By local internal schedule, which writes to BV-40 at priority 16

• By a command sent from a BMS schedule or BMS operator override, writing to BV-43.

Note If the user is allowed to command the SYSTEM Block, this

command is at priority 10. BMS schedules should write to one of the BV-40 priorities 12-16 to avoid overriding the user command.

• When the occupant has initiated an aft er-hours override by pressing the override arrows on the touch screen.

The Unoccupied Setpoints are activated when the controller’s SYSTEM Block is set to “OFF” by the user.

When operating in the Unoccupied state, the override up/down arrows can be pressed to force the controller into the Occupied state for up to 4 hours (default value). The override time limit (AV-97) is adjustable from a minimum of 0.2 hours to a maximum of 9.5 hours.

Setting BV-9 to active enables the controller to default to Occupied state whenever communication with the BMS is lost continuously for more than 5

Installation and Operations Guide

minutes. The command to Occupied state is implemented by setting BV-64 to active.

Occupied, Unoccupied, and Standby Heating and Cooling Setpoints

When operating in the Unoccupied state, the cooling and heating setpoint revert to specific values:

When operating in the Occupied state, the cooling and heating setpoints are calculated as offsets from the user adjustable Space Setpoint (AV-90):

When operating in the Standby mode, the Current Cooling Setpoint and Current Heating Setpoint are calculated as for occupied mode as described above. However the standby offset ([SO]:, AV-19) is transferred to the Demand Offset (AV-106) before the computations, resulting in relaxed setpoints during standby operation.

BACnet FF

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• Current Cooling Setpoi nt (AV-99) = Unoccupied Cooling Setpoint (AV-95)

• Current Heating Setpoint (AV-100) = Unoccupied Heating Setpoint (AV-96)

• Current Cooling Setpoint (AV-99) = AV-90 plus AV-93 plus Demand Offset (AV-106)

• Current Heating Setpoint (AV-100) = AV-90 minus AV-94 minus Demand Offset (AV-106)

User adjustment of the Space Setpoint (AV-90) value is limited by the Setpoint High Limit (AV-91) and the Setpoint Low Limit (AV-92).

Table 16 Setpoint values in Occupancy control

Field Code De scription

[:SP] AV-90 Space Setpoint

[:HI] AV-91 Setpoint High Limit [:LO] AV-92 Setpoint Low Limit

[:CO] AV-93 Cooling Setpoint Offset [:HO] AV-94 Heating Setpoint Offset [:UC] AV-95 Un occupied Cooling Setpoint [:UH] AV-96Unoccupied Heating Setpoint [CS] AV-99 current calculated Cooling Setpoint [HS] AV-100 current calculated Heating Setpoint

-- AV-106 demand offset (AV-106 value updates AV-99, AV-100) [SO] AV-19 standby offset; 0 minimum, 6 maximum degrees DDC transfers value to

AV-106

66

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Setpoint control (AV-123 = 1)

In setpoint mode, the controller logically emulates residential thermostats. The space temperature is controlled to "SP Mode Cooling SP" (AV-108) and "SP Mode Heating SP" (AV-109). These setpoints are writable using BACnet. Each schedule period consists of a start time, a heating setpoint, and a cooling setpoint. The maximum number of periods per day is configured using ISU parameter 540 (AV-129). A value of 2 specifies two periods per day -- Wake and Sleep. A value of 4 specifies four periods per day -- Wake, Leave, Return, and Sleep. The scheduler selects the last valid period start before the present time as the period to use. Setpoint mode schedules are not accessible using BACnet. The only way to view, edit and save a schedule is from the unit's LCD screen.

Note Setpoints are writable using BACnet but schedules are not accessible

using BACnet.

If the Standby mode is active, the heating and cooling setpoints are adjusted by the standby offset ([SO]:, AV-19).

Note The SYSTEM Block is hidden when the controller is in Setpoint control

mode.

Installation and Operations Guide

Air Conditioning Unit: App 4

|

Figure 27 Setpoint mode display: single-speed fan

Schedule setpoint overrides in Setpoint mode

An override is created using one of three modes. Temporary- press an arrow next to a setpoint. The words "Hold Temperature

Unit" appear above the time display, which shows the default ending time (the beginning of the next schedule transition). Use the arrows to adjust the ending time. Wait a few seconds. The arrows next to the ending time disappear and the override takes effect.

Permanent- press HOLD. The words “Permanent Hold" appear below the time display and the override takes effect.

Vacation- while in Permanent Hold, press HOLD. The words "Hold Temperature Unit" appear above the time display. Use the arrows to select the number of days (1-365) you want to override to last. Wait a few seconds. The arrows next to the ending time disappear and the override takes effect.

Installation and Operations Guide

BACnet FF

|

Pressing CANCEL returns the BACnet FF to the current schedule. The Setpoint mode override status (AV-113 and MV-13), hold until time

(AV-130), and the number of vacation days left (AV-130) can be adjusted remotely using BACnet or by DDC.

A user's ability to set Permanent or Vacation holds can be disallowed by setting BV-115 and BV-130, respectively.

Dual setpoint mode (AV-123 = 2)

In dual setpoint mode, the following quantities are used:

• Occupied Heating SP (AV-109)

• Occupied Cooling SP (AV-108)

• Unoccupied Heating SP (AV-96)

• Unoccupied Cooling SP (AV-95)

• Heating SP Limit (how high the heating setpoint can be set) (AV-92)

• Cooling SP Limit (how low the cooling setpoint can be set) (AV-91)

AV-109 and AV -108 are used to control Occupied Cooling and Occupied Heating Setpoints. Both are writable using BACnet or the device screen. When the space is occupied (BV-67 = Active), AV-109 and AV-108 are transferred to the current heating and cooling setpoints (AV-100 and AV-99).

IMPORTANT! DDC sh ould not use AV-109 or AV-108 directly. When the space is unoccupied, the Unoccupied Heating and Cooling Setpoints

(AV-96 and AV-95) get transferred to the current heating and cooling setpoints (AV-100 and AV-99). The Unoccupied heating and cooling setpoints are not user-adjustable but they are adjustable using field service mode or an operator workstation. Unoccupied heating and cooling setpoints are not transferred to AV-109 and AV-108 during unoccupied periods.

Figure 28 Dual setpoint display in Occupied mode: occupied heating setpoint AV-109, user-adjustable and occupied cooling setpoint AV-108, user-adjustable.

68

Note Use the MORE key to view OSA temperature and humidity values on

subsequent screens.

31-00098-01 © Ho neywell

Fan mode control

Installation and Operations Guide

Writes to AV-109 and AV-108 are limited by the Setpoint High and Low Limits (AV-91 and AV-92). Writes to AV-109 and AV-108 are also limited to the heating setpoint less than the cooling setpoint by a minimum of one degree.

Air Conditioning Unit: App 4

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Occupancy mode

During occupancy mode the fan operates based on the selected Fan Mode.

• Fan Control AV-17 = 1: Fan runs continuously for ventilation.

• Fan Control AV-17 = 2: Fan runs continuously for cooling and cycles on for heating demand. When in Cooling mode, the fan runs continuously. When in Heating mode, the fan cycles on only when the heating signal calls for the fan to run.

• Fan Control AV-17 = 3: Fan cycles on when cooling or heating is selected or during Unoccupied mode only when called to run by cooling or heating demand.

Setpoint mode

• AV-227 =1: Fan cycles on for cooling and for heating demand.

• AV-227 =2: Fan runs continuously.

Analog fan speed control (optional)

The fan speed analog output AO-1 will ramp from 0-100% based on the heating or cooling signal demand.

Note Variable speed drives run at minimum motor RPM even if AO-1 is zero

when in run mode.

Standby Heating and Cooling setpoints

Standby state is a power-saving function of Occupancy mode. It occurs when the space is scheduled Occupied, but sensors detect there are no humans in the space. In this case the occupied heating and cooling setpoints are relaxed by the Standby Offset [SO]. When the Standby input is active, the economizer is controlled to its fully-closed position. The value of the Standby Offset [SO] may be set between a minimum of 0 and a maximum of 12 degrees.

Examples: If [:CS] = 72, [:HS] = 69, and [SO] = 4 then the setpoints are relaxed to [:CS] = 76, and [:HS] = 65.

Occupied Standby state, wired contacts

A door/window contact, light switch, or PIR is wired to the standby input BI-1. The switch polarity normally open/normally closed is configured by BV-3 [uL]. Set BV-3 inactive for normally open contacts, active for normally closed contacts. When the controller is in the Occupied state and the Standby input (BI-1) is triggered, the room status switches to Occupied Standby state (refer to Standby Heating and Cooling calculated Setpoints above). A BMS can also be configured to monitor BI-1 for door/window ajar alarms.

Standby logic: In Standby state, BI-1 is active (e.g. a window is open). BV-4 is active and the value of the Standby Offset, [SO] AV-19, is transferred to the

Installation and Operations Guide

Demand Offset, AV-106. The [SO] AV -19 default is 4, the minimum is 0, and the maximum is 12.

Occupied Standby state, wireless contacts (TB3026B-W only)

The wireless-controller interface sets BV-149 active. BV-149 in the active state overrides the wired input at BI-1, which no longer has standby control functionality. If normal standby operation is required, BV-148 should be set to inactive allowing BI-1 to have standby control as it does on the non-wireless version. Any of up to 3 wireless PIR motion sensors can be configured and paired to the controller to sense room occupancy. Any of up to 8 wireless Window/Door sensors can be configured and paired to the controller to monitor open/closed status of windows or doors. When the controller is scheduled Occupied, if any window or door is opened and closed with no motion detected after 180 seconds, the room status switches to Occupied Standby state. The controller returns to the Occupied state when motion is detected. If a door or window is left open for more than 180 seconds, the controller sets to Standby state.

Standby logic: In Standby state, BV-4 is active and the value of the Standby Offset, [SO] AV-19, is transferred to the Demand Offset, AV-106. The [SO] AV-19 default is 4, the minimum is 0, and the maximum is 12.

BACnet FF

|

Optional BI-1 input configuration (TB3026B-W only)

Input BI-1 on the BACnet FF may be used for point monitoring by a BMS.

Heating and Cooling Demand

Heating (AV-0) and Cooling (AV-1) signals are generated from the Space Temperature and the current Heating and Cooling Setpoints using a proportional-integral (PI) control algorithm. The two signals are compared, and the smaller one is set to zero to prevent any simultaneous heating and cooling. In the event of a Bad Space Sensor Alarm, both heating and cooling signals are set to zero.

Upon power-up or any transition to Occupied state, the integral component is re-initialized for both the Heating Signal and Cooling Signal PI control loops.

Heating and Cooling Signals — PI settings

The Heating signal PI settings are Heating Signal Kp (AV-41) and Heating Signal Ki (AV-42). The Cooling Signal PI settings are Cooling Signal Kp (AV-43) and Cooling Signal Ki (AV-44).

• A dry contact normally open (e.g., filter status DPS, etc.)

• Standby Offset AV-19 is used by the wireless standby monitoring logic. Do Not set to zero (0).

Compressor Control

AC-HP Control Mode (AV-40 set to 1)

The compressor commanded cycles ON when the current value of the compressor control signal is equal to or greater than the compressor start demand setpoint. The compressor command remains ON until the control signal drops below the stop setpoint. The compressor command setpoints are adjustable from

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Installation and Operations Guide

the display . When the fan requests AC cooling, BV-7 is ON. When BV-7 is OFF, the fan stops after a short delay. The compressor will not start unless the fan is ON. An anti-cycle timer prevents short-cycling the compressor.

AV-68 AC-HP Compr Start Demand % (set at 20% default). AV-69 AC-HP CMPR Stop Deadband % (default set at 1%) AV-27 is minimum On time MON in minutes (anti-cycle). AV-57 is minimum OFF time MOF in seconds (anti-cycle).

AC-HP control mode (AV-40, default set at 2)

The compressor control signal ranges 0-100 as the Cooling signal AV-1 ranges 0-100 if the economizer option is disabled. When the economizer option is enabled, the economizer utilizes the Cooling signal range 0-30, and the compressor control signal ranges 0-100 as the Cooling signal AV-1 ranges 30-100.

The compressor cycles ON for a percentage of the Compressor Cycle Time [Cc] according to the current value of the compressor-control signal. The Compressor Cycle Time [Cc] is adjustable from the display. Recommended cycle time range is 6-12 minutes. The compressor does not start unless the fan is ON. Runtime and compressor starts are accumulated.

Air Conditioning Unit: App 4

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Compressor timing

Auxiliary heating

• When either the Cooling Lockout is ON or the Low Supply Temperature Alarm is ON, the compressor-control signal is set to zero, disabling the compressor without overriding the minimum ON time. The cooling lockout setting is controlled by [cL]. A normally-open condensate sensor can be connected across BI-2. If BI-2 is shorted (indicating condensate is sensed) AI-2 reads 572. Compressor operation is locked out until the condensate alarm lock out clears.

Cycle times and minimum on/off times need to be set for operation of the heat-pump compressor.

• AV-26 [Cc] AC-HP Compressor Cycle Time: (CYC) time in minutes (factory default = 12 minutes)

• AV-27 [cc] AC-HP Compressor Minimum ON-OFF: (MON) and (MOF) time in minutes (factory default = 3 minutes)

Auxiliary heating is controlled by the upper portion of the Heating Signal range. The auxiliary heat signal ranges 0-100 as the Heating Signal ranges 65-100. Auxiliary heating is staged ON for a percentage of each set Heating-Cycle period [Hc] based on the value of the auxiliary heat signal. [Hc] operation is locked out when the outside-air temperature is above the Auxiliary Heating Lockout Temperature [hL]. Runtime is accumulated for auxiliary heating.

High and low refrigerant pressure cutouts must be separately provided, preferably hard-wired, to stop compressor operation in the event of these conditions. Outdoor coil defrost control and any provisions to allow oil sump

Installation and Operations Guide

heaters to be effective must also be included in the equipment manufacturer’s controls or otherwise provided for.

Staged heating timing

Cycle times and minimum on/off times need to be set for operation of the electric heating stages. Staged heating will not run if either of the following two values are zero.

Compressor and Heating-stages Binary Control

DDC cycles the output ON for a percentage of each cycle time (CYC), based on a 0.0 to 100.0 analog input control signal. For example, if the control signal is

75.0, then the output will be ON only for the first 75% of the cycle time. The minimum ON time (MON) and minimum OFF time (MOF) prevent short

cycling. The output turns ON only if the calculated ON time is greater than the MON. If the output is ON, it remains ON until it has been ON for the calculated ON time and the MON has expired. The output remains ON continuously if the calculated OFF time is less than the MOF.

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• AV-28 [Hc] Heating Stages Cycle Time: (CYC) time in minutes (factory default = 3 minutes)

• AV-29 [hc] Heating Stages Minimum ON: (MON) time in minutes. (factory default = 1 minute)

• AV-80 [?] Heating stages minimum OFF (MOF) 60 seconds

• Inputs must be positive numbers.

• Time resolution is 1 second

• CalculatedOnTime = CycleTime (Input/100.0)

• CalculatedOffTime = CycleTime minus CalculatedOnTime

Air stratification and humidity control in Unoccupied state (optional)

Set BV-53 active to enable additional humidity control during Unoccupied Mode. A humidity trigger setpoint is entered as AV-30, with humidity dead band entered as AV-31.When sensed humidity equals or exceeds humidity trigger setpoint, the fan cycles ON/OFF at low speed until sensed humidity drops below the trigger setpoint minus the dead band.

Example: If AV-30 is set for 75 and AV-31 is set for 5: The fan will cycle when the space humidity is >= 75 and continue to cycle until the space humidity drops below 70.

The fan cycles ON for AV-48 seconds (default 1800) and OFF for AV-47 seconds (default 300) when stratification and humidity control is active.

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Table 17 Unoccupied air stratification and humidity controls

Enable RH Fan Circulation Cycle BV-53 Active Unoccupied state Fan ON Cycle Time Low Speed AV-48 1800 Seconds Fan OFF Cycle Time Low Speed AV-47 300 Seconds Sensed Space Humidity %RH AV-105 %RH Humidity Space Humidity %RH Setpoint AV-30 User Value Humi dity Space Humidity %RH Deadband AV-31 User Value Humidity

Economizer sequence (optional)

The economizer logic is enabled when Economizer Damper Stroke Time [ES] AV-63 is set to 5 seconds or above. If the economizer option will not be used, [ES] AV-63 should be set to 0 (factory default); this will prevent the economizer relays from clicking. If the analog modulating option is to be used, [ES] AV-63 should be set to 5. The economizer sequence requires that a supply air sensor be wired to AI-2.

Air Conditioning Unit: App 4

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Point Value Units

As the Cooling signal varies between 0 and 30, the economizer command varies between the current minimum position [AV-66] and full open position. When either the Occupied command or the After-hours T imer is ON, the current minimum position [AV-66] is set to the specified Economizer Minimum Position; otherwise it is zero. The default minimum position is 20. The Economizer Minimum Position is set to zero if the fan is OFF.

The economizer minimum position will only work when "Schedule Mode" is configured as "Setpoint Mode". It will be forced to the current minimum position when any of the following are true:

• Outside Air Temperature goes above the Economizer Lockout

• Supply Temperature goes below the Low Supply Temperature Limit

• the unit is in Heat Mode

The Economizer Damper Stroke Time [ES] is used in combination with the current economizer commanded position to estimate the actual current position of the economizer damper. A BMS is required to set the values for AV-60, AV-66, and AV -67. The economizer sequence requires that a supply air sensor be wired to AI-2.

Analog modulating economizer

The economizer is controlled directly by the economizer command output on AO-0.

Temperature [AV-67]

[AV-60]

3-point floating motor economizer

The economizer is controlled directly by the economizer command. As the command signal increases, BO-4 is active, driving the economizer open. As the command signal decreases, BO-5 is active, driving the economizer closed.

Installation and Operations Guide

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AC Alarms

If the Supply Temperature (AI-2) drops below the Supply Air Low Temp Limit [LL] for more than 20 seconds, the Lo Limit Alarm (BV-20) is triggered. The alarm automatically resets when the Supply Temperature exceeds the Supply Air Low Temp Limit [LL] by 7 degrees and the Supply Temperature remains above the Supply Air Low Temp Limit [LL] for 10 minutes. The Supply Air Low T emp Limit [LL] default is 40º F (5º C).

When condensate is sensed, e.g., BI-2 is shorted (active), AI-2 reads 572. Compressor operation is locked out until the condensate alarm lock out clears.

Space Temperature Alarms

A Bad Space-Sensor Alarm is activated if the room-temperature sensor indicates a temperature greater than 120°F/50°C or less than 40°F/5°C.

Runtimes

Separate runtimes are accumulated for the fan and the filter based on fan operation. The runtimes can be reset independently in the event of filter replacement. A filter alarm, BV-16, is triggered if the filter runtime exceeds the filter-alarm setpoint. AV-86 will reset the runtime on the filter.

English/Metric units configuration

The display contains adjustment arrows to change the controller’s main display for English “F” or Metric “C”. The controller internal units English or Metric are set by BV-71. BV-71 is set to inactive (default) for English or active for Metric. Selecting either adjustment arrow will update the display units F or C. Setting BV-8 (Lock Display Units Swap) to active will display the opposite units as indicated by BV-71 and will lock out changes to the display.

Figure 29 Display: English (F) or Metric (C)

Note BV-55 controls Fan Auto/Fan On display. Setting BV-55 inactive hides

Fan Auto/Fan On. Setting BV-55 active shows Fan Auto/Fan On status. If BV-55 is inactive, BV-58 inactive/active control by BMS toggles Fan Auto/Fan/ON.

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Installation and Operations Guide

Table 18 Setup codes: [AP] 4

Code Object Default Options Units Notes

AP AV-49 Application selection 4 0-18 OE BV-2 Outputs enable OFF OFF/ON Set to ON to enable outputs HC BV-21 Rev Vlv Action HP or

4PHTG

FC AV-17 Fan1=Cont 2=CycHtg

3=CycHtgClg CC AV-26 AC-HP Compr Cycle Time 12 Min C0 AV-27 AC-HP Compr Min ON 3 Min CF AV-18 AC-HP Compr Min OFF 3 Min hC AV-28 Heating Stages Cyc Time 12 Min h0 AV-29 Heating Stages Min ON 3 Min hF AV-80 Heating Stages Min OFF 3 Min 2C AV-37 2 Pos Valves Cyc Time 3 Min 2c AV-38 2 Pos Valves Min ON 1 Min c5 AV-64 Clg or 2-pipe Valve Stroke

Time

h5 AV-65 Htg Valve Stroke Time 3 Sec Heating Valve Stroke Time:

2P AV-34 2PVlvMode 1=ON-OFF

2=ABOT 3=TMV FA BV-55 Enable Fan CTL Display OFF OFF/ON cL AV-70 Cooling Lockout Temp 55 Deg

OFF OFF/ON Apps 0-3, 6-9 & 17.

1 1,2,3

3 Sec Cooling Valve Stroke Time:

Value<=3 disables 3-point floating binary output

2 1,2,3

Air Conditioning Unit: App 4

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hL AV-72 Heating Lockout Temp 62 Deg P5 BV-47 Enable AI-0 Sensor OFF OFF/ON 5r BV-32 Enable Remote Space

Sensor F1 AV-46 Auto Fan Start Demand % 20 % Fan demand is based on AV-0 or

F5 AV-5 Fan Stop Delay Seconds SP15 Sec

F2 AV-85 Medium Speed Fan Start SP40 % Do not set less than AV-46 + 5

F3 AV-89 High Speed Fan Start SP 70 % Do not set less than AV-85 + 5 uL BV-3 Rev Standby Logic BI-1 OFF OFF/ON 50 AV-19 Standby Htg Offset Deg SP AV-90 Occupied Space Setpoint 70 70 Deg HI AV-91 Setpoint High Limit 78 78 Deg

OFF OFF/ON

AV-1 % signal

Installation and Operations Guide

Table 18 Setup codes: [AP] 4

Code Object Default Options Units Notes

LO AV-92 Setpoint Low Limit 62 62 Deg CO AV-93 Cooling Offset 2 2 Deg HO AV-94 Heating Offset 1 1 Deg UC AV-95 Unoccupied Clg Setpoint 85 85 Deg UH AV-96 Unoccupied Htg Setpoint 55 55 Deg AL AV-97 After Hours Limit 4 4 Hours

Table 19 Requires BMS to set

Code Point Value Default Options Units Notes

BV-102 Show SYSTEM

control

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Active Inactive/Active A visible SYSTEM Block may or

may not be required with schedules. SYSTEM Block “OFF” overrides scheduled occupied states to unoccupied.

AV-123 Schedule

Model

BV-12 Dehumidify

Mode On

BV-27 Heating

Lockout

BV-28 Cooling

Lockout

BV-31 WS HP Water

Loop OK

AV-20 Standby Delay

Seconds

BV-56 Enable BMS

Scheduling

BV-53 Enable RH%

Fan Circ Cycle

AV-30 Dehumidify

Setpoint Trigger

AV-31 Humidity Reset DB5 5 %RH Works with AV-30and BV-53

0

Inactive Inactive/Active Enables dehumidification App 10

Inactive Inactive/Active

Active Inactive/Active BMS enable allows heat pumps

180 180 Sec

Inactive Inactive/Active Overrides BV-133 internal

Inactive Inactive/Active

100 30-100 %RH When set to a system set point

0 = Occupancy 1,2 = Setpoint

Sets mode as Occupancy or Setpoint.

or with BV-53 enables dehumidification setpoint control with unoccupied dehumidification fan cycles

to run

schedules

usable value to enable dehumidification control when BV-12 or BV-12 & BV-55 are active

76

BV-9 Enable

Communication Failure

Inactive Inactive/Active Set active to auto fail to occupied

on MS/TP comm failure

Installation and Operations Guide

Table 19 Requires BMS to set

Code Point Value Default Options Units Notes

BV-10 Enable System

OFF

AV-40 AC HP Mode 2 1,2 Setting 1, emulates thermostat

AV-41 Heating Signal Kp20

AV-42 Heating Signal Ki1

AV-43 Cooling Signal Kp20

AV-44 Cooling Signal Ki1

Inactive Inactive/Active

control. Setting 2, analog to BIN control.

Air Conditioning Unit: App 4

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AV-46 Auto Fan Start

Demand %

AV-47 RH Circ OFF

Time

AV-48 RH Circ ON

Time

AV-53 Auto Fan Stop

Deadband SP

AV-60 Supply Air Low

Temp Limit

AV-61 Supply Temp.

High Limit

AV-63 Econ. Damper

Stroke Time

AV-66 Economizer

Min Position

AV-67 Economizer

Lockout Temp AV-77 Filter Alarm SP 3000 Hours AV-78 2PVlvMode Set

DB%

20 %

1800 Sec Unoccupied state fan

300 Sec Unoccupied state fan

5 % Setting for all si ngle speed fan

45 Deg

78 Deg

0 6-nnn Sec AV-63 Set to zero (0) to stop

20 0-100 %

68 68 Deg

20 20-100

dehumidification OFF cycle time

dehumidification ON cycle time

applications

relay outputs if BO not used.

AV-79 2PVlvMode

Reset DB% BV-105 Show

Unoccupied

Htg/Clg SPs BV-210 Enable Custom

Screen BV-215 URHC Enable Active Inactive hides F/C sele ction BV-219 LLHC Enable Active Do Not

11-25

Active Active/Inactive

Active Inactive hides custom screen

options

DDC control

Change

Installation and Operations Guide

Table 19 Requires BMS to set

Code Point Value Default Options Units Notes

BV-222 LRHC Enable Active Do Not

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DDC control

Change

BV-262 URHC Adi

Arrows

BV-276 LRHC Adi

Arrows

MV-8 OFF 1 Do Not

MV-9 F1 5 Do Not

MV-10 F2 5 Do Not

MV-11 F3 4 Do Not

MV-21 Mode

1-Numeric, 2-Alpha Numeric

MV-22 Mode

1-Numeric, 2-Alpha Numeric

MV-23 Mode

1-Numeric, 2-Alpha Numeric

AV-218 URHC delta 1 Do Not

Active Do Not

Change

Active Do Not

Change

2Do Not

Change

2Do Not

Change

2Do Not

Change

DDC control

78

AV-216 URHC Up

Arrow Max

AV-217 URHC Down

Arrow Min

AV-230 LRHC Up

Arrow Max

AV-231 LRHC Down

Arrow Min

AV-232 LRHC Delta 1 Do Not

1Do Not

Change

2Do Not

Change

1Do Not

Change

2Do Not

Change

Installation and Operations Guide

Air Conditioning Unit: App 5

2-stage compressor, 2-stage heating, analog economizer, single-speed fan, optional analog fan control.

Fan mode control (AV-17)

• 1 = continuous

• 2 = cycle with heating

• 3 = cycle with heating/cooling

Configurable Occupancy Modes

• SYSTEM Block: AUTO/OFF selection (Occupied/Unoccupied)

• Occupancy mode (AV-123=0, default): Schedules Occupancy states

• Setpoint mode (AV-123=1): Schedules Setpoints

• Dual setpoint mode (AV-123=2): Dual setpoints when Occupied

• Internal schedules enabled when BV-133 is active or ISU 160=4

• BMS schedules enabled when BV-56 is active

Air Conditioning Unit: App 5

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Inputs and Outputs

Table 20 Inputs and Outputs: [AP] 5

Point Function

AI-0 Optional:

Use as space sensor in place of the internal space sensor AV-104 (Set BV-32 active and BV-47 inactive)

Use as an outdoor-air sensor; maps to display

AV-103 (Set BV-47 active and BV-32 inactive) BI-1 Optional standby input (for PIR/door/window sensor) AI-2 Supply-air sensor (optional, but required for

economizer option) BI-2 Normally-open condensate sensor (optional) BO-0 Fan BO-1 Compressor stage 1 BO-2 Compressor stage 2 BO-3 Heating stage 1 (optional) BO-4 Heating stage 2 (optional) BO-5 Not used AO-0 Economizer (optional) AO-1 Analog fan speed (optional)

Installation and Operations Guide

Fan

Cmp Stg 1

Cmp Stg 2

Htg Stg 1

Htg Stg 2

Econ

Controller Terminations

A2H2 AP 5

GND

5

BO 0

BO 1

BO 2

BO 3

BO 4

BO 5

G

Y1

Y2

W1

W2

EC

0-10Vdc

AO 0

C

RC24VAC

1

24V

Com

AO 1

Com

14

BI/AI 1

COM

BI/AI 2

COM

BI/AI 0

Sensor *

SA Sensor

Optional Standby

N.C. or N.O.

Optional Condensate alarm or fail

VC

VFD /SCR

4-20ma

* Optional space or outside temperature sensor.

4-20ma

Wiring diagram

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Sequences of Operation

SYSTEM Block Control (BV-102)

80

Figure 30 Controller terminations: [AP] 5

Controller outputs are disabled when Enable Outputs [OE] BV-2 OFF/ON is in the OFF (inactive) state. Do not enable outputs until you are certain the wiring and configuration is correct and complete.

When the unit is configured to run in Occupancy Mode, the SYSTEM Block allows the user direct control of occupied or unoccupied state from the controller display. Selecting “Auto” places the controller in Occupied state. Selecting “OFF” places the controller in unoccupied state.

The SYSTEM Block can be hidden by setting BV-102 inactive. When the SYSTEM Block is hidden occupancy states are controlled exclusively by the onboard or BMS schedules.

If onboard or BMS schedules are enabled, the “OFF” selection will override the controller’s scheduled state and force the unit into Unoccupied state. If you do not want the user to have this ability, set BV-102 inactive to hide the SYSTEM Block.

You can optionally change the behavior of the SYSTEM Block “OFF” setting so that instead of placing the controller in the Unoccupied state, the controller will turn the fan off. Heating and cooling are disabled when the fan is off. The fan

Installation and Operations Guide

will remain off until the user changes the SYSTEM Block to “Auto.” Set BV-10 to active to allow this option.

Figure 31 Display: SYSTEM Block OFF; SYSTEM Block AUTO