Honeywell T7300F, Q7300H User Manual 2

T7300F/Q7300H Series 2000 Commercial

Thermostats and Communicating

Subbases

Contents

INTRODUCTION

CONSTRUCTION

APPLICATION STEPS

........................................................................................................................... 3

Description of Devices ....................................................................................... 3

Control Application............................................................................................. 3

Control Provided................................................................................................. 4

Product Names .................................................................................................. 4

Products Covered............................................................................................... 5

Organization of Manual...................................................................................... 5

Applicable Literature .......................................................................................... 6

Agency Listings.................................................................................................. 6

Abbreviations and Definitions............................................................................. 6

........................................................................................................................... 7

Performance Specifications ............................................................................... 8

Input/Output Summary .................................................................................. 8

Communications............................................................................................ 9

LonMark® Functional Profile.............................................................................. 10

Configurations.................................................................................................... 10

General.......................................................................................................... 10

........................................................................................................................... 11

Overview ............................................................................................................ 11

Step 1. Plan The System.................................................................................... 11

Step 2. Determine Required Network Devices................................................... 12

Step 3. Lay Out Communications and Power Wiring......................................... 12

LonWorks Bus Layout ................................................................................ 12

Cable Termination......................................................................................... 14

Singly Terminated Network Segment ....................................................... 14

Doubly Terminated Daisy-chain Network Segment.................................. 15

Wiring Details................................................................................................ 15

Step 4. Prepare Wiring Diagrams ...................................................................... 15

General Considerations................................................................................. 18

Step 5. Order Equipment.................................................................................... 19

Step 6. Configure T7300F/Q7300H.................................................................... 20

Step 7. Troubleshooting..................................................................................... 20

APPENDIX A

USER ADDRESS

NETWORK VARIABLES

........................................................................................................................... 20

Sequence of Operations.................................................................................... 20

See form number 63-4366, Q7300 Communicating Subbase System Integration User Address Manual.

63-4365

T7300F/Q7300H SERIES 2000 COMMERCIAL THERMOSTATS AND COMMUNICATING SUBBASES

LIST OF FIGURES

LIST OF TABLES

Fig. 1. Typical T7300F/Q7300H LonWorks® network diagram.......................... 3

Fig. 2. Typical T7300F/Q7300H application....................................................... 4

Fig. 3. T7300F/Q7300H dimensions in in. (mm)................................................ 8

Fig. 4. Functional Profile Number 8060LonMark® Thermostat Object

(Type 09) (Thermostat profile variables not used are grayed). ..................... 10

Fig. 5. Connecting personal computer to LonWorks® Bus................................ 11

Fig. 6. Typical topology for T7300F/Q7300H devices in

LonWorks® network..................................................................................... 13

Fig. 7. Wiring layout for two doubly terminated LonWorks® Bus segments...... 13

Fig. 8. Wiring layout for one doubly terminated daisy-chain

LonWorks® Bus segment. ............................................................................ 14

Fig. 9. Singly terminated LonWorks Bus termination module. ........................ 14

Fig. 10. Doubly terminated LonWorks® Bus termination modules. ................... 15

Fig. 11. Proper wiring technique. ....................................................................... 15

Fig. 12. Ferrite core wires from Q7300H to digital inputs and outputs............... 15

Fig. 13. Typical hookup of T7300F/Q7300H in three-stage heat,

two-stage cool heat pump system................................................................. 16

Fig. 14. Typical hookup of T7300F/Q7300H in three-stage heat,

two-stage cool heat pump system................................................................. 16

Fig. 15. Typical hookup of T7300F/Q7300H in three-stage heat,

three-stage cool conventional system........................................................... 17

Fig. 16. Typical hookup of T7300F/Q7300H in two-stage heat,

one-stage cool conventional system............................................................. 17

Table 1. Additional Products.............................................................................. 5

Table 2. Terminal descriptions and conditions................................................... 9

Table 3. Application Steps. ................................................................................ 11

Table 4. LonWorks® Configuration Rules and Device Node Numbers.............. 12

Table 5. Field Wiring Reference Table ............................................................... 18

Table 6. Ordering Information............................................................................ 19

63-4365 2

T7300F/Q7300H SERIES 2000 COMMERCIAL THERMOSTATS AND COMMUNICATING SUBBASES

INTRODUCTION

Description of Devices

The Q7300H Subbase is a LonMark® certified device that provides networking capability for the T7300F Thermostat in a LonWorks® system using a transformer-coupled Free Topology Transceiver (FTT). See Fig. 1.

The T7300F/Q7300H communicates with all LonMark® devices including the following:



Other T7300F/Q7300H Commercial

Thermostat/Communicating Subbases. — Excel 15 S7760A Command Display. — Excel 10 W7750A,B Constant Volume Air Handler

Unit (CVAHU) Controller. — Excel 15 W7760A Building Manager. — Excel 10 W7761A Remote Input/Output (RIO)

Controller.

BUILDING MANAGER

NOTEBOOK PC

RS-232 SERIAL PORT

SLTA

1 4 8 12 16

EXCEL 15 W7760

17 23

Control Application

The T7300F/Q7300H Series 2000 Commercial Thermostats and Communicating Subbases control 24 Vac commercial single zone heating, ventilating and air conditioning (HVAC) equipment. In addition, the Q7300H can communicate schedule information and system instructions to other devices in a LonWorks® network. Fig. 2 shows a typical T7300F/Q7300H application in a three-stage heat and two-stage cool heat pump system. For additional T7300F/Q7300H hookups, see Fig. 13, 15,

16.

WALL MODULE

EXCEL 10 CVAHU

30 31

S7760

LonWorks® BUS

T7300

MODEM

Select

Back

MODEM

BUILDING MANAGER

1 4 8 12 16

RS-232 SERIAL PORT

SLTA

EXCEL 15 W7760

17 23

30 31

S7760

Select

Back

EXCEL 10 CVAHU

LonWorks® BUS

Fig. 1. Typical T7300F/Q7300H LonWorks® network diagram.

WALL MODULE

T7300

M16083B

3 63-4365

T7300F/Q7300H SERIES 2000 COMMERCIAL THERMOSTATS AND COMMUNICATING SUBBASES

SUBBASE

AS AS

DISCHARGE AIR SENSOR

1 2

3 4

COMPRESSOR CONTACTOR 2

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION INSTRUCTIONS. USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED IN OCCUPIED MODE. CONNECT GND TO EARTH GROUND.

Y1 O G

COMPRESSOR CONTACTOR 1

COOL CHANGEOVER VALVE

EM. HT. RELAY

FAN RELAY

AUX. HEAT

HEAT CHANGEOVER VALVE

ECONOMIZER

Fig. 2. Typical T7300F/Q7300H application.

A2A1

C4 C3C5

CA4 CA3CA5

T7147 REMOTE COMFORT ADJUST MODULE

TRANSFORMER

CA2

L1 (HOT)

C1 T

CA1

GND

TEBEB

M16056

LonWorks® BUS

Communicating subbases for T7300F Thermostats add value by allowing remote-site access—via telephone lines—for diagnostics, maintenance and monitoring. In addition, the T7300F can act as the user interface for onsite Excel 10 Controllers (after initial installation with Excel LonSpec™) without the need for a personal computer workstation. Through the T7300F/Q7300H Thermostat/Communicating Subbase, a building operator can control Excel 10 devices by setting occupancy schedules, setpoints and additional features.

Control Provided

The Q7300H communicates with other network devices, or nodes, for the purpose of sharing data. Through the network, the T7300F/Q7300H sets and deletes schedules. Schedules can be bypassed by selecting Continuous Unoccupied or Temporary Override. By using network messaging, the Q7300H sets fan operation (ON, AUTO) and system mode (HEAT, COOL, AUTO, OFF, EM HEAT) designated by a remote T7300F. Schedules can be programmed for seven days with four designated periods per day; Occupied 1, Occupied 2, Unoccupied 1 and Unoccupied 2. In external schedule mode, the T7300F changes occupancy through a network-based scheduler. In local schedule mode, the T7300F changes occupancy through an internal scheduler. If the external schedule is not periodically updated, the T7300F defaults to the local schedule.

The T7300F/Q7300H is also able to provide time of day, temporary setpoint, bypass status and additional information to multiple Excel 10 devices by sending instructions from one T7300F/Q7300H to the Excel 10 devices. When the T7300F is configured to schedule temporary setpoint and effective bypass information for other devices, certain restrictions apply such as: — When the T7300F is scheduling temporary setpoints

for Excel 10 devices, the Excel 10 cannot adjust setpoints using the T7770 wall module.

— When the T7300F is providing effective bypass

information to Excel 10 devices, the Excel 10 cannot change the bypass status using the T7770 wall module.

63-4365 4

Product Names

When combined with the T7300F Series 2000 Commercial Thermostat, the Q7300H Communicating Subbase communicates with other devices in a LonWorks® network. The thermostat and subbase are available in the following models:

Part Number Product Description

Q7300H2003 Communicating subbase with O and B

terminals for three-sta cool heat pump system.

Q7300H2011 Communicating subbase without O and

B terminals for three-sta stage cool heat pump system.

Q7300H2029 Communicating subbase for three-stage

heat, three-sta

e cool conventional

system.

Q7300H2037 Communicating subbase for two-stage

heat, one-sta

e cool conventional system with valve two-position heat output.

T7300F2002 Series 2000 Commercial Electronic

Thermostat without system and fan switching.

T7300F2010 Series 2000 Commercial Electronic

Thermostat with system and fan switching.

e heat, two-stage

e heat, two-

T7300F/Q7300H SERIES 2000 COMMERCIAL THERMOSTATS AND COMMUNICATING SUBBASES

Products Covered

This System Engineering manual describes how to apply the T7300F Thermostat and Q7300H Communicating Subbase and related accessories to typical applications. Devices include:

T7300F Series 2000 Commercial Thermostat. Q7300H Series 2000 Communicating Subbase. Excel 15 W7760A Building Manager.

Excel 10 Controllers, as follows:

W7750A,B Constant Volume Air Handler Unit (CVAHU)

Controller.

W7761 Remote Input/Output (RIO) Controller.

Other products:

Q7751A,B Bus Router. Q7760A Serial LonTalk Adapter. Q7740A,B FTT Repeaters. 209541B FTT Termination Module.

See Table 1 for additional products.

Table 1. Additional Products.

Part Number Product Description Comments

R8242A Contactor, 24 Vac coil, DPDT. — AT72D, AT88A, etc. Transformers. — 4074EYD Wallplate for T7770 Wall Modules. For covering an existing hole in a

— Serial Interface Cable, male DB-9 to female DB-9 or

Honeywell (US only) AK3791 (one twisted pair) AK3792 (two twisted pairs).

Honeywell (US only) AK3781 (one twisted pair) AK3782 (two twisted pairs).

Honeywell AK3725 (US only), typical or equivalent.

Honeywell AK3752 (US only), typical or equivalent.

Honeywell AK3702 (US only), typical or equivalent.

Honeywell AK3712 (US only), typical or equivalent.

Honeywell AK3754 (US only), typical or equivalent.

female DB-25. LonWorks® Bus (plenum): 22 AWG (0.325 sq mm)

twisted pair solid conductor, nonshielded or Echelon approved shielded cable.

LonWorks® Bus (nonplenum): 22 AWG (0.325 sq mm) twisted pair solid conductor, nonshielded or Echelon approved shielded cable.

Inputs: 18 AWG (1.0 sq mm) five wire cable bundle. Standard thermostat wire.

Outputs/Power: 14 to 18 AWG (2.0 to 1.0 sq mm). NEC Class 2, 140°F (60°C) rating.

18 AWG (1.0 sq mm) twisted pair. Non-plenum.

16 AWG (1.3 sq mm) twisted pair. Non-plenum.

14 AWG (2.0 sq mm) two conductor. Non-plenum.

Organization of Manual

This manual is divided into four basic sections:

Introduction

T7300F/Q7300H, discusses related devices, lists additional literature, and provides a glossary of abbreviation and terms.

Construction

network connections and dimensions.

Application Steps

provides the information necessary to plan and lay out the T7300F/Q7300H application and accurately order materials.

Appendix

operations for configuring network controllers.

The organization of the manual assumes a project is being engineered from start to finish. If you are changing an existing system, refer to the Table of Contents for relevant sections.

. Provides an overview of the

. Describes T7300F/Q7300H features,

. A step-by-step procedure that

. Appendix A provides a sequence of

wall. Obtain locally from any computer

hardware vendor. Level IV, 140°F (60°C) rating.



Level IV, 140°F (60°C) rating.



5 63-4365

T7300F/Q7300H SERIES 2000 COMMERCIAL THERMOSTATS AND COMMUNICATING SUBBASES

Applicable Literature

The following list of documents contains general information related to the T7300F/Q7300H Series 2000 Commercial Thermostats and Communicating Subbases.

Form No. Title

62-0125 T7300F Series 2000 Commercial

Microelectronic Conventional or Heat Pump Thermostat Installation Instructions

62-0155 Q7300H Series 2000 Commercial

Thermostat Installation Instructions 74-2976 Excel LonSpec™ Specification Data 74-2977 Excel LonSpec™ Software Release

Bulletin 74-2937 Excel LonSpec™ User’s Guide 74-2982 Light Commercial Building Solutions

System Specification Data 74-2865 E-Bus Wiring Guidelines User’s Guide 74-2967 Excel 15 W7760A Building Manager

Specification Data 95-7565 Excel 15 W7760A Building Manager

Installation Instructions 74-2969 Excel 15 W7760A Building Manager

System Engineering 74-2956 Excel 10 W7750A,B CVAHU Controller

Specification Data 95-7521 Excel 10 W7750A,B CVAHU Controller

Installation Instructions 74-2958 Excel 10 W7750A,B CVAHU Controller

System Engineering 74-2698 Excel 10 W7761A RIO Controller

Specification Data 95-7539 Excel 10 W7761A RIO Controller

Installation Instructions 74-2699 Excel 10 W7761A RIO Controller System

Engineering 74-2697 T7770A, B, C, D, E, F, G Wall Module

Specification Data 95-7538 T7770A, B, C, D, E, F, G Wall Module

Installation Instructions 95-7554 209541B Termination Module Installation

Instructions

ABBREVIATIONS AND DEFINITIONS

Application Binding

variables in one node to network variable(s) in other node(s). Binding is performed by a network management node that writes the binding information into the EEPROM memory of all the neuron's involved. The binding information is saved in the network image of each neuron.

Building Manager

be used to monitor and control HVAC equipment and other miscellaneous loads in a distributed network.

Command Display

and change parameters.

Control Loop

function in a node that includes processes, loops and programs. A node can contain one or more control loops. (In Excel 10 class devices, the control loop occupies the entire node.)

CVAHU

Controller.

Excel 10s

controllers such as the Excel 10 CVAHU and Excel 10 RIO.

HVAC I/O

—Input/Output.

LonWorks® Network

communicating with each other using the LonTalk® protocol.

Mandatory Mechanisms/Objects/Network Variables

Mandatory mechanisms and network variables that are implemented in all the Excel 10 devices.

NamedObject

NamedObjects. These objects are visible on the network as functional independent entities and are accessed by name. Typical examples of NamedObjects are Controllers, ControlLoops and LogicFunction blocks.

Network Management Node

responsible for configuring the network, installing the nodes, binding the network variables between nodes, and general network diagnostics.

—A specific Building Control function.

—The process of logically connecting network

—A LonMark® certified device that can

—A device that can be used to monitor

—A primitive control function. A type of

—Excel 10 Constant Volume Air Handler Unit

—A family of application - specific HVAC

—Heating, Ventilating and Air Conditioning.

—A data network based on neurons

—

—Objects that have names are called

—A LonWorks® node that is

Agency Listings

European Community Mark (CE): Conforms to requirements of European Consortium Standards.

63-4365 6

T7300F/Q7300H SERIES 2000 COMMERCIAL THERMOSTATS AND COMMUNICATING SUBBASES

Network Variables

Neuron C that allows communication over the LonWorks® network to other nodes on the network. An output network variable in one node can be bound to corresponding input network variable(s) in other node(s). Changing the value of the output network variable in one node causes the new value to be automatically communicated to the bound input network variable(s) in other node(s). When an input network variable is updated, an nv_update_occurs event is posted at the receiving node(s) so that the application program can take action based on the change. A network management node that explicitly reads and/or writes the network variable can also poll network variables. Network variables can contain one data field (one or two bytes) or multiple data fields (a structure).

Node

—A device implementing layers one through six of the LonTalk® protocol including a Neuron® Chip, transceiver, memory, and support hardware.

Notebook PC Optional Mechanism/Object/Network Variables

Optional mechanisms and variables that shall be implemented on an as-needed basis. However, a different mechanism or network variable cannot be implemented if an existing optional mechanism or network variable can perform the same function.

Programmable Controller

variable number of control loops of different types and is user-programmed to execute an application. The user can select the number and type of control loops. The user also has the capability of generating new types of control loops.

Recovery Mode or Recovery Period

unoccupied periods when the temperature control is adjusting the control setpoint so that the space temperature reaches the occupied setpoint when the schedule change occurs.

—A class of variables defined in

—Portable personal computer.

—

—A controller that has a

—The time in

RIO

—Excel 10 Remote Input/Output device.

RTC

—Real Time Clock.

Schedule

states, setpoints and the time of the changes between these states.

SGPU

Periodic Update.

SGPUC

Periodic Update with Change Field.

SLTA

coupled LonTalk® messages to the RS-232 Serial Port.

SNVT SCPT

—The structure that defines the occupancy

—Significant Event Notification and Guaranteed

—Serial LonTalk® Adapter. Adapts the transformer

—Standard Network Variable Type. —Standard Configuration Parameter Type.

CONSTRUCTION

The T7300F Thermostat has a keypad for setting system parameters, a corresponding LCD display and a flip-down keypad cover. The T7300F Thermostat mounts on the Q7300H Subbase.

The Q7300H Communicating Subbase includes LonWorks® Bus terminals and a jack for temporary network connections to a personal computer. A service pin push button provides service messaging to physically locate the device on the LonWorks® network. The subbase mounts horizontally on the wall or on a 2 in. x 4 in. junction box.

Fig. 3 shows T7300F/Q7300H dimensions.

7 63-4365

T7300F/Q7300H SERIES 2000 COMMERCIAL THERMOSTATS AND COMMUNICATING SUBBASES

6-11/16 (170)

7-5/16 (186)

3-3/16 (77)

1-3/8 (35)

1/16 (2)

1-7/8

(47)

4-1/8 (105)

7/8

(22)

1-11/16

(43)

Occupied Start Time

Day/Time

Set Program

Unoccupied

Start Time

Clear

Start Time

Day

Copy

Run

Program

Temporary Occupied

Continous

Unoccupied

Set Current

Fig. 3. T7300F/Q7300H dimensions in in. (mm).

Performance Specifications

Electrical Ratings:

Power: 20 to 30 Vac, 50/60 Hz. System Current: 6 VA maximum at 30 Vac, 50 or 60 Hz.

Temperature Ratings:

Setpoint Range: Heating: 40°F to 90°F (4°C to 32°C;

Cooling: 45°F to 90°F (7°C to 32°C). Operating: 40°F to 110°F (4°C to 43°C). Shipping: -20°F to +130°F (-29°C to +54°C). Display Accuracy: ±1°F (+0.5°C).

Set Temperature

Occupied

Temp

System

Unoccupied

Temp

Heat/Cool

Settings

Fan

Change

Time/Temp

4-5/8 (117)

Differential:

2°F (1°C).

Humidity Ratings:

5% to 90% RH, noncondensing.

Input/Output Summary:

Table 2 summarizes the T7300F/Q7300H Thermostat/Subbase inputs and outputs.

M16086A

63-4365 8

+ 16 hidden pages