PT4e
For the automatic combustion of wood pellets (class A1 / D06):
- Retort with optimized silicon carbide combustion chamber, including a specially alloyed two-part combustion grate consisting of a fixed sliding grate and a 110° automatically tilting grate.
- Three-pass heat exchanger including fully automatic cleaning of the second and third pass heat exchanger surfaces; mechanical drive located in the “cold” zone.
- Automatic ash removal from the retort and heat exchanger into a mobile ash container with a capacity of 55 l for PT4e 120 and 75 l for PT4e 140–180.
- Automatic ignition using a ceramic igniter.
- Speed-controlled high-tech EC induced draft fan.
- Flue gas recirculation (FGR).
- Fixed integrated return temperature control with pump, mixer, shut-off and balancing valve.
- 2 multi-chamber rotary valve feeders.
- Pellet container (capacity 200 litres).
- Cleaning tool set.
Optional:
- Retrofit electrostatic particulate filter.
Control System H 3200 Touch
Microprocessor control system for optimizing the combustion process through precise boiler and flue gas temperature regulation, including primary and secondary air flap actuators, 7" color display for all important values and status messages with USB interface for updates; including lambda control.
Scope of Delivery
Basic module
- 2 heating circuits (with outdoor sensor)
- 1 speed-controlled pump output or changeover valve
Hydraulic module
- 2 speed-controlled outputs for pumps or changeover valves
- 6 sensor inputs
Included
- Outdoor sensor
- Flow temperature sensor for 1 heating circuit
(2nd heating circuit possible with additional sensor) - “Froling APP” for remote management
Optional
The control system can be expanded up to 18 heating zones (wall-mounted control boxes) and up to 8 hydraulic modules (wall-mounted control boxes), enabling numerous additional functions such as solar integration, oil/gas boiler integration, circulation control, differential control, etc.
