is a high-performance, 48x48 mm dual-display engineered for precise industrial heating and cooling applications . This guide provides the complete layout for configuring your device, resolving "hot" overshoots, and wiring your sensors correctly to prevent system faults. Technical Specifications
While you wait for your exact manual, the following general principles apply to most underfloor heating controls. Treat these as a starting point to help you confidently adjust your settings.
: If the heat is overshooting the target, the PID parameters (Proportional, Integral, Derivative) may need adjustment or a new auto-tuning session. pid temperature controller - INSTRUCTION SHEET thermotech tt91 manual hot
Have a specific "hot" error code? Leave a comment below with the exact display reading.
In the modern home, comfort isn’t a luxury—it’s the backbone of good living. Whether you’re hosting a movie night, enjoying a quiet morning with coffee, or winding down for an evening of gaming, the right temperature sets the mood. The programmable thermostat puts that control in your hands. But without a clear understanding of its features, you’re missing half the benefit. Let’s bridge the gap between manual settings and seamless living. is a high-performance, 48x48 mm dual-display engineered for
Connect to sensor inputs, ensuring correct polarity (RTD Pt100 for higher precision, Thermocouple for wider range). Control Output (Heater):
Before modifying any wiring or programming parameters, verify your hardware footprint and electrical limitations against the manufacturer standard specifications: Specification Details 48 x 48 mm (Standard DIN size) Power Input 220 VAC ± 15% at 50/60 Hz Primary Control Types PID (with Auto-Tune) or ON/OFF Compatible Sensors J, K, R, and S Thermocouples; RTD (Pt100) Control Outputs 5A Relay Output or Solid State Relay (SSR) Drive Display Layout Dual 4-Digit 7-Segment LED (Process Value & Set Value) Safety and Installation Guidelines Treat these as a starting point to help
The unit fits standardized panel layouts and integrates with multiple industrial sensors. Specification 48 x 48 mm panel cutout Power Supply 220 VAC ± 15%, 50/60 Hz Input Sensors J, K, R, S Thermocouples / RTD Pt100 (Selectable) Control Modes ON/OFF or Time-Proportional (PID) Control Output Relay Output (5A) or SSR Output drive Display Dual 7-segment Red (PV) & Green (SV) LED Safety and Installation Precautions
The Thermotech TT91 is designed for reliability and ease of use. It commonly features dual 4-digit, 7-segment displays (Process Value - PV and Set Value - SV). Key features include: