Principal Technical Features; Installation - Honeywell 7800 SERIES Product Data

7800 SERIES S7830 EXPANDED ANNUNCIATOR

PRINCIPAL TECHNICAL FEATURES

The S7830 Expanded Annunciator is an enhancement
module for use with 7800 SERIES Relay Modules. The S7830
is a microprocessor-based device designed to monitor the
status of a series string of limit, control and interlock contacts
for a commercial or industrial burner. The S7830 acts as a
system monitor and enhances fault and status messages for
the 7800 SERIES burner control.
ControlBus Communications
The S7830 provides interfaces with the 7800 SERIES Relay
module through a three-wire RS-485 interface. Using this
communications bus, the S7830 provides additional first-out
annunciation, burner hold, and current status information for
the control, limit and interlock string of the burner equipment.
LED Array
The S7830 provides visual indication of the status of the
burner equipment control, limit and interlock string. The string
of contact and switch points are individually identified with a
colored LED. When power is present at the contact point, the
LED is lighted. When the contact point is de-energized, the
LED is dark. If the contact or switch is identified as the first-out
annunciation point, the LED flashes if the RM78X0L,
RM7838B,C with the Lockout Feature is used or if the feature
is enabled (RM7895, 6, 7, or 8 with JR2 configuration resistor
removed).
Opto-Isolator Coupling
The S7830 uses opto-isolators to monitor the limit string and
couple the line voltage input to the microprocessor. An opto-
isolator allows a microprocessor to determine the status of
line voltage at control, limit or interlock switch points. Using
this capability, the microprocessor is able to determine the
current as well as first-out status of 23 digital points, each
representing specific burner control, limit or interlock switches.
65-0101—03

INSTALLATION

WARNING
Fire or Explosion Hazard.
Can cause severe injury, death or property
damage.
Verification of safety requirements must be performed
each time a control is installed on a burner to prevent
possible hazardous burner operation.
When Installing This Product...
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced flame
safeguard technician.
4. After installation is complete, check out the product
operation as provided in these instruction.
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or equipment
damage.
1. Disconnect the power supply before beginning
installation to prevent electrical shock and
equipment damage. More than one power supply
disconnect can be involved.
2. Wiring connections for the S7830 are unique;
therefore, refer to Fig. 3, 4, 5 for proper subbase
wiring.
3. Wiring must comply with all applicable codes,
ordinances and regulations.
4. Wiring must comply with NEC Class 1 (Line
Voltage) wiring.
5. The S7830 should not interfere with the proper
safety operation of the controls, limits and interlocks
it is monitoring. After installation, check each
control, limit and interlock to ensure that it is
operating properly. DO NOT PLACE JUMPER
WIRES ACROSS THE INSTALLATION
CONTROLS, LIMITS AND INTERLOCKS.
4