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Honeywell W7761A User Manual

Honeywell Remote control

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U.S. Registered Trademark

Copyright

1998 Honeywell Inc.

All Rights Reserved

LonWorks

LonMark

and LonMark

logo are Registered

Trademarks of Echelon

Corporation.

74-2699

CONTENTS

Table of Contents

Introduction

...........................................................................................................................

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

4

Control Application .............................................................................................

5

Control Provided.................................................................................................

5

Products Covered...............................................................................................

6

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

6

Applicable Literature ..........................................................................................

6

Product Names ..................................................................................................

6

Agency Listings ..................................................................................................

7

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

7

Construction .......................................................................................................

9

Controllers .....................................................................................................

9

Performance Specifications ...................................................................... 12

Wall Modules................................................................................................. 15

Configurations .................................................................................................... 16

Mixed-Output-Type Control ........................................................................... 17
Occupancy Sensor ........................................................................................ 17
Window Open/Closed Digital Input................................................................ 17
Wall Module Options ..................................................................................... 17
Dirty Filter Monitor ......................................................................................... 17
Indoor Air Quality (IAQ) Override................................................................... 17

Application Steps

...........................................................................................................................

Overview ............................................................................................................ 18
Step 1. Plan The System.................................................................................... 18
Step 2. Determine Other Bus Devices Required................................................ 19
Step 3. Lay Out Communications and Power Wiring ......................................... 19

E-Bus Layout ................................................................................................. 19
Power Wiring ................................................................................................. 21

Power Budget Calculation Example:......................................................... 21
Line Loss: ................................................................................................. 22

Step 4. Prepare Wiring Diagrams ...................................................................... 24

General Considerations................................................................................. 24
W7761A Devices........................................................................................... 24
E-Bus Termination Module ............................................................................ 30

Step 5. Order Equipment.................................................................................... 33
Step 6. Configure Devices.................................................................................. 36
Step 7. Troubleshooting ..................................................................................... 36

Troubleshooting Excel 10 Controllers and Wall Modules .............................. 36
Temperature Sensor and Setpoint Potentiometer Resistance Ranges......... 36
Alarms ........................................................................................................... 36
Broadcasting the Service Message ............................................................... 37
W7761A Controller Status LEDs ................................................................... 37
T7780 DDWM Bypass Pushbutton................................................................ 38

List of Figures

...........................................................................................................................

2

Fig. 1. Typical system overview. ........................................................................

4

Fig. 2. Typical W7761A control application. .......................................................

5

Fig. 3. Excel 10 W7761A Remote I/O Device. ................................................... 10
Fig. 4. W7761A construction. ............................................................................. 11

Excel 10 W7761A Remote Input/Output

Device