Product Details

The Fireye PPC4000 is a Nexus parallel positioning fuel-air ratio controller powered by 120 VAC, designed for gas-fired and oil-fired industrial burners. This fuel air ratio controller delivers accurate burner modulation and must cooperate with external Fireye flame safeguard devices such as BurnerLogix to maintain optimal fuel-air mixture, reduce fuel cost and cut exhaust emissions. As a reliable parallel positioning burner controller, it supports multi-point configurable combustion curves, high-precision servo positioning within ±0.1 degree, and CANbus communication for FX series servomotors. This Nexus combustion modulation module accepts feedback signals from PXMS pressure transmitters and optional NXCESO2 oxygen probe for continuous combustion trimming. It is widely installed on small and medium steam boilers, hot water boilers and process heaters, and stocked as genuine replacement spare part for Fireye Nexus combustion systems.

Basic Parameters

Brand: Fireye

Model: PPC4000

Type: Parallel positioning fuel-air ratio controller

Supply voltage: 120 VAC, 50 / 60 Hz

Power consumption: Approx. 15 VA with display and no extra loads

Communication: CANbus for servos, Modbus RTU

Supported servos: FX04, FX20, FX50 series 24 VAC servomotors

Compatible displays: NXTSD407, NXTSD413, NXD410 keypad / touchscreen

Analog inputs: Compatible with PXMS pressure transmitters and oxygen trim probe

Storage media: SD card for backup and restore of all combustion profiles

Branch circuit rating: 2000 VA

Product type: Original Fireye Nexus combustion controller

Supported Functions

This controller automatically adjusts fuel and air actuator positions following pre-calibrated combustion curves according to boiler load demand. It provides independent PID loops for pressure or temperature regulation, supports oxygen trim to correct excess oxygen, and integrates configurable safety interlock logic. It offers lockout alarm output, remote reset function and VFD fan speed control for smooth modulation across full firing range. Saved profiles can be quickly restored to shorten commissioning time during spare replacement.

Core Functions

The compact red enclosure features removable plug connectors for easy field wiring and maintenance. CANbus daisy-chain design greatly reduces wiring workload for multi-servo setups. It is programmed by dedicated Fireye configuration software and keeps stable low-hysteresis positioning for retrofit projects. It serves as direct drop‑in substitution for existing PPC4000 120VAC controllers.

Hardware Specifications & Environmental Features

Mounting: DIN rail installation inside control cabinet

Operating temperature: 0 °C to +60 °C

Storage temperature: -40 °C to +85 °C

Relative humidity: 5% – 85%, non‑condensing

Protection class: IP20 for controller module

Housing: Robust industrial plastic and metal enclosure

Condition: Original new Fireye combustion controller

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm 120V power supply, matched servomotors and external flame safeguard compatibility before ordering; PPC4000 is only a fuel-air positioning controller and cannot provide standalone flame safeguard protection.

This is from our current stock.

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