Micronova Es99 User Manual Verified -

A critical verified step that many fake manuals omit: Before using the ES99 for living space heating, run it outside or in a garage for 24 hours on high heat. This burns off the protective oil applied to the ceramic core during manufacturing. The manual warns of a "non-toxic, harmless smoke" during this period.

Do not dispose of in household waste. The ES99 contains a non‑user‑serviceable lithium battery. Return to an electronic recycling center or to MicroNova via their take‑back program.


Document revision history


This manual is verified against production unit ES99 serial prefix MN-ES99-2025A and later.

Micronova ES99 is a widely used control board for pellet stoves and biomass heating systems. While "verified" physical manuals are often proprietary or distributed through authorized service centers, the following report synthesizes the core technical specifications and operational parameters found across reliable technical databases and user documentation. Core Technical Specifications

The ES99 controller is designed for high-efficiency management of pellet-burning systems. Operating Voltage: Typically 230V AC, 50Hz. Sensor Inputs:

Supports NTC temperature sensors for exhaust gas (high temperature) and ambient air.

Relay outputs for the induction fan, pellet auger, ignition heater (glow plug), and room fan. Communication:

Standard interface for external thermostats and remote control modules. Common Operating Modes The manual identifies several distinct operating phases: Ignition Phase:

The controller activates the intake fan and glow plug. Pellets are fed at a specific rate to establish the flame. Work/Modulation Phase: micronova es99 user manual verified

Once a set exhaust temperature is reached, the system enters normal operation. It adjusts the pellet feed and fan speed based on the desired ambient temperature. Modulation (Eco Mode):

If the set temperature is exceeded, the controller reduces the flame to a minimum power level to conserve fuel. Cleaning/Shutdown:

The auger stops, and the induction fan runs at maximum speed to clear the burn pot of ash and safely cool the unit. Programming & Dip Switch Settings A key feature of the ES99 is its adaptability via internal Dip Switches , which configure software behavior: Remote Control: Can be toggled on/off to allow external commands. Auto-Restart:

Determines if the stove restarts automatically after a power interruption. Software Activation:

Specific switches allow the hardware to run either ES99 or ES3000 software variants depending on the stove model. Error Codes (Verified Troubleshooting)

When the system detects an anomaly, it displays alphanumeric codes: Alar Depr:

Pressure alarm; typically caused by a blocked flue or open door. Over-temperature safety trip.

Ignition failure; occurs if the exhaust temperature doesn't rise within the allotted time.

Sensor failure; indicates a disconnected or faulty NTC probe. A critical verified step that many fake manuals

For a complete digital copy, you can find hosted versions on technical document repositories like Scribd - ES99 User Manual Google Docs Library parameter codes (UT04) used to adjust the pellet feed rates for your stove? Es99 Controller | PDF - Scribd

The Micronova ES99 is an electronic control board commonly used in industrial air compressors—specifically for Atlas Copco and Chicago Pneumatic models—rather than domestic pellet stoves. This "Energy Saving" control module (Part #ES99) manages essential compressor functions including timing selection, pressure monitoring, and emergency shutdowns. Technical Specifications & Power Energy Supply: 12 VAC, 50/60 Hz, 250 mA.

Operating Temperature Range: 0°C to +50°C (Storage: -20°C to +70°C).

Outputs: Contact relays rated at 5A and outlet current triacs rated at 5A.

Weight & Dimensions: Approximately 637g (2.2 lbs) with dimensions of 250mm x 155mm x 130mm. Control Board Connectivity (I/O Devices)

The ES99 board features 8 digital inputs for monitoring system status. Key terminal connections include:

Terminal 4–3 (CN1): Electric motor overload (Normally Closed).

Terminal 5–3 (CN1): Wrong rotation indicator (Normally Closed).

Terminal 6–3 (CN1): Oil over-temperature (Normally Closed). Document revision history

Terminal 7–3 (CN1): Timing selection (Open for standard timing; Closed for alternate stand-by timing).

Terminal 10–3 (CN1): Pressure switch (Open when P > Pmax; Closed when P < Pmin).

Terminal 12–3 (CN1): Emergency push button (Normally Closed). Operation & Menu Navigation

Verified manuals like those found on Scribd and Google Drive outline the following basic procedures:

System Monitoring: The board uses NTC100K sensors to track up to two temperature points and 4/20mA sensors for pressure.

Timing Selection: Unique to the ES99, users can toggle between different "stand-by" and "vuoto" (empty/unloaded) timing cycles depending on the contact status of Terminal 7.

Retrofitting: In some cases, the ES99 is replaced by modern "Base Control" units during compressor overhauls. Maintenance & Troubleshooting If the controller fails to operate, common issues include:

Input Faults: Verify that all "Normally Closed" (NC) loops (Emergency stop, oil temp, motor overload) are properly seated; a break in these circuits will prevent the compressor from starting.

Power Check: Ensure the 12 VAC supply is steady; dips in voltage can cause erratic behavior in the triacs or relays.

Parts Support: Since the ES99 is discontinued by some original manufacturers, retailers like Radwell International offer repaired units or equivalent warranties. ES95/ES96/ES99/ST71T - CNET Content Solutions


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