Control Board, Mascot FT Wall 140 Replacement Part Board

Laars Mascot Combi FT140 – R2080601 Control Board (Version 22)

Replacement control board for Laars Mascot FT140 combination boilers manufactured prior to serial number F1800309. This board runs the Version 22 firmware and is engineered to interface with the Mascot FT140’s sensors, ignition, burner, and control logic.

• Part number: R2080601 (Mascot FT140 control board) :contentReference[oaicite:0]{index=0}
• Firmware / software version: Version 22 (intended for heaters with serial number < F1800309) :contentReference[oaicite:1]{index=1}
• Electrical / capacitor spec: 150 µF, 450 V (for the onboard DC link / smoothing cap) :contentReference[oaicite:2]{index=2}
• Operating temperature rating: (M)105 °C (capacitor rating) :contentReference[oaicite:3]{index=3}
• Dimensions (approx):
  • Length: 10.4 in (≈ 264.2 mm) :contentReference[oaicite:4]{index=4}
  • Width: 6.65 in (≈ 169 mm) :contentReference[oaicite:5]{index=5}
  • Height: 2.05 in (≈ 52 mm) :contentReference[oaicite:6]{index=6}
  • Weight: ~1.77 lb (≈ 0.80 kg) :contentReference[oaicite:7]{index=7}
• Application: Replacement PCB for Mascot FT140 combi boiler (wall-mounted, gas condensing) :contentReference[oaicite:8]{index=8}
• Compatibility note: Only appropriate for heaters with serial numbers prior to F1800309 (not for later serials) :contentReference[oaicite:9]{index=9}
• Functions controlled: ignition sequencing, burner modulation, sensor feedback, safety interlocks (flame detection, pressure, temperature limits), diagnostics, user panel interface, etc. :contentReference[oaicite:10]{index=10}

Technical Data & Performance

• Voltage / power source: (as mounted in boiler; interfaces to boiler’s internal power supply)
• Capacitor: 150 µF, 450 V (DC) smoothing capacitor, rated for 105 °C operating life :contentReference[oaicite:11]{index=11}
• Firmware behavior: includes gas modulation logic, safety fault detection, sensor calibration routines, error logging, and boiler operation control (as per Version 22) :contentReference[oaicite:12]{index=12}
• Diagnostic interface: supports reading fault codes, lockouts, and status indications from the Mascot FT boiler via user panel / display interface (or via service mode) (per boiler’s wiring and control manual) :contentReference[oaicite:13]{index=13}
• Safety protections:
  • Flame detection / flame failure interlock
  • Overtemperature / thermal limit shutoff
  • Sensor failure detection (temperature, pressure, flow sensors)
  • Lockouts with reset logic
• Board protection: conformal coating likely (on the boiler PCB) to resist moisture in boiler enclosure (typical in control boards) (deduced based on standard control board practices)
• Mounting: designed to fit in the Mascot FT140’s control compartment with standard screw standoffs and electrical connectors per original board footprint
• Environmental: typical operating range inside boiler enclosure; must be installed in manufacturer-specified ambient and ventilation conditions (per boiler manual) :contentReference[oaicite:14]{index=14}