The Honeywell R7849A1023, also cataloged as the R7849A1023 Flame Amplifier Module, operates as a dedicated hardware component for ultraviolet flame signal acquisition within 7800 SERIES relay module platforms.
Hardware Specifications
Parameter
Specification
Model
R7849A1023
Brand
Honeywell
Origin
USA
Weight
Standard Plug-In Module Weight
Dimensions
Standard 7800 Series Edge-Connector Module Footprint
Operating Temp
-40 to +60 deg C
Power Consumption
Powered via 7800 Series Relay Module Backplane
Sensor Type Compatibility
Ultraviolet (Minipeeper C7027A, C7035A, C7044)
Flame Failure Response Time
2.0 sec or 3.0 sec
Flame Signal Output Range
0.0 to 5.0 VDC
Self-Checking Capability
Standard (Non-self-checking)
Channel-to-Channel Isolation & Signal Processing
Designed for flame safeguard integration, the R7849A1023 solid-state plug-in amplifier interfaces directly with ultraviolet flame detectors to process raw sensor inputs. Circuitry within the module converts high-frequency optical pulses into a stabilized 0.0 to 5.0 VDC analog flame signal, featuring channel-to-channel isolation from primary control logic to prevent electrical noise propagation. Front-accessible flame signal test jacks allow real-time diagnostic voltage measurement using standard meter probes, while a keyed printed circuit board edge connector prevents improper mechanical insertion into the host 7800 Series chassis.
Frequently Asked Questions
Q: What specific flame detectors can be wired to the R7849A1023 amplifier?
A: The module is designed for use with Honeywell ultraviolet flame sensors, specifically models Minipeeper C7027A, C7035A, and C7044.
Q: How is the flame signal strength verified on the physical R7849A1023 module during commissioning?
A: Flame signal voltage (0.0 to 5.0 VDC) can be measured directly using standard test leads inserted into the front-panel flame signal test jacks.
Field Installation Guidelines
Power down the host 7800 Series relay module base before attempting module insertion or removal.
Align the keyed edge connector of the R7849A1023 with the designated amplifier slot on the relay control unit.
Press the module firmly into place until the circuit board edge connector seats fully against the receptacle.
Route ultraviolet detector wiring in dedicated conduit, keeping signal leads isolated from line-voltage ignition cables to prevent cross-talk.
Apply system power and measure DC voltage across the front test jacks to confirm stable flame signal output (> 1.25 VDC target) during burner firing cycles.
