Overview
The document describes the features and specifications of Hengel's retarder prover chambers and tunnels, designed for various bread-making processes including slow rising, traditional rising, and proving. The chambers ensure optimal temperature and humidity control using the Bi-Tronic Control 2 system, guaranteeing fully developed and hydrated dough ready for baking.

Specifications
- Interior made of stainless steel with a white lacquered steel exterior, 6 cm thick.
- Electronic humidity probe adjustable from 45% to 90% for precise control.
- Automatic door closing system with standard right-side hinges (left-side available upon request).
- Ergonomic Bi-Tronic Control 2 interface for easy operation.
- Air mixing cycle during cooling to maintain uniform temperature.
- Adjustable ventilation during proving for improved results.
- Interior lighting and R404A remote refrigeration unit with anti-short cycle feature.
- Easy maintenance with vertical technique duct and removable gasket door.
- Various door options including larger, double, and additional doors.

Options
- Reinforced humidity options, stainless steel exterior and ceiling, ribbed floor, and tropicalized refrigeration units.
- Sizes available for trolleys with grids and baguette trays, with custom sizes available upon request.

Control System
The Bi-Tronic Control 2 system is user-friendly and ergonomic, offering:
- Easy and intuitive operation with clear cycle and temperature displays.
- Four different programs and clear messages.
- Three temperature rise options: Direct, Standard, and Linear proving cycles.
- Stepped proving cycle for enhanced aroma and dough consistency.
- Automatic return to cold after proving and automatic cycle resumption after power failure.

Conclusion
The Hengel retarder prover chambers are designed to meet the needs of professional bakers, offering flexibility, durability, and advanced control for superior bread quality.