Cleave rooks"

CB780KB784 Burner Control

Relay Module CB780

Flame Amplifier

Control Bus

ControlBus Module

Relay Module CB784

Purge Timer Card

Expanded Annunciator Module

Combustion System Management Software

(PC software)

Universal Wiring Subbase

Keyboard Display Module

Communication Interface

CB-7836

Application The CB780/CB784 Burner Control is a microprocessor

based integrated control for gas, oil or combination fuel single burner applications. The CB780/CB784 consists of a Relay Module, Subbase, Amplifier, Keyboard Display Mod- ule (CB780) and Purge Card. Options include Keyboard Display Module (CB784), Personal Computer Communi- cation Interface, ControlBus Module, Remote Display Mounting, First Out Expanded Annunciator, and Combus- tion System Management Software.

The CB780/CB784 is programmed to provide safety, functional capability and features beyond the capacity of conventional controls. The CB780/CB784 is Underwriters Laboratories Inc. listed, Canadian Standards Association certified, Factory Mutual approved, Federal Communica- tions System and Canadian Department of Communication approved.

Functions provided by the CB780/CB784 include auto- matic burner sequencing, flame supervision, system status indication, historical files (total cycles, total hours, last six lockouts), system or self-diagnostics and troubleshooting aids.

TheCB780/CB784CommunicationInterfaceoptionpro- vides local and remote monitoring and diagnostics of the CB780KB784 by using an DM@ equivalent personal com- puter and MicrosoftB WindowsTM 3.0 (or higher) software.

The First Out Expanded Annunciator provides system status indication for up to 21 points for system and self- diagnostics beyond standard CB780/CB784 functions.

The CB780KB784 Remote Keyboard Display Module mounting provides system status monitoring from mul- tiple locations.

FEATURES Dynamic self-check logic. Dynamic safety relay test. Tamper resistant timing and logic. Dynamic input check. First out annunciation and system diagnostics are pro- vided by a 40 character vacuum fluorescent display (VFD) located on the Keyboard Display Module (stan- dard with CB780, optional with CB784). Five LEDs for system sequence status. Five function Ruf les t switches. Nonvolatile memory (CB780KB784 retains history files and sequencing status after loss of power). Interchangeable plug-in flame amplifiers. Dependable, long term operating microcomputer technology. Communication interface capability. Local or remote annunciation of CB780/CB784 shut- downs. First out expanded annunciation with 24 LEDs for limit or interlock status with optional CB783. Application flexibility. Burner controller data. - Sequence status. - Sequence time. - Hold status. - Lockout/alarm status.

CB-7836

- Flame signal strength. - Expanded annunciator status. - Total hours of operation. - Total cycles of operation. - Fault history of the six most recent faults.

- Fault message and code. - Sequence status at the time of fault. - Sequence time of the fault. - Expanded annunciator data at the time of fault. - Cycles of operation at the time of fault. - Hours of operation at the time of fault.

- Diagnostic information. - Relay module type. - Software revision and version. - Odoff status of all digital inputs/outputs. - Status of configuration jumpers. - Selected prepurge time. - Flame failure response time. - Flame amplifier type. - Manufacturing code.

Off cycle flame signal check. Preignition interlock check. Airflow switch check. Configuration jumpers for sequence timings and tests. Interchangeable purge timers.

Specifications ELECTRICAL RATINGS:

Voltage and Frequency: Relay Module:

120 Vac (+lo/-15%). 50 or 60 Hz (+/-lo%).

Display Module:

Expanded Annunciator: 120 Vac (+lo/-15%). 50 or 60 Hz

Power Dissipation:

13 Vdc (+lo/-15%).

Relay Module: 10 watts maximum. Expanded Annunciator: 5 watts maximum. Keyboard Display Module: 3 watts maximum. Communication Interface: 5 watts maximum. Maximum Total Connected Load: 2000 VA.

CB780KB784:

Total System:

Fusing:

15A maximum, type FRN or equivalent.

20A maximum, type FRN or equivalent.

DIMENSIONS: 5 x 5 x 5-1/4 in. (Relay Module, Ampli- fier, Keyboard Display Module, Purge Timer and panel type mounting subbase).

ENVIRONMENTAL RATINGS: Ambient Temperature:

Operating -40°F to 140°F. Storage -40°F to 150°F.

Humidity: 85% RH continuous, noncondensing.

2

APPROVALS: Underwriters Laboratories Inc. listed. Canadian Standards certified.

Factory Mutual approved. Federal Communications Commission. Canadian Department of Communication.

Fig. 1-Single CB-HAWK or CB780 local and remote communications.

CB-HAWK CHASSIS AND PROGRAM MODULE

CB-HAWK KEYBOARD

I ,

1 1000 FT. MAXIMUM CONTROL BUS

COMMUNICATIONS 50' MAXIMUM INTERFACE

COMMUNICATIONS

RJll CONNECTOR

PHONE LINES

300 OR 1200 BAUD

M7645

3 CB-7836

Fig. 2-Multiple CB-HAWK or CB780 communications.

L

L

L

CB-HAWK CHASSIS AND

CB-HAWK KEYBOARD P R O G R ~ M . M ~ D U L E

M7646

Cleave rooks" Performance Proven Worldwide

Printed in U.S.A.