Digital Controller for Accurate Zone Comfort
The T158 microprocessor-controlled thermostat is a stand-alone digital controller that supplies 24 VAC output control for valves, dampers, relays and three-wire floating valves. The use of an advanced proportional-integral (PI) algorithm allows precise control of zone comfort under varying operational and environmental conditions.
Easy-to-Use Digital Display
The digital display, with easy-to-use adjustment buttons, allows convenient access to the current zone temperature, setpoint temperature and operating mode.
Adjustable for Application Requirements
Optional pipe sensor changeover, setback and staged heat functions are available, on selected models, for adapting to application requirements.
| Temperature Range | 50 to 90°F / 10 to 32°C |
| Operating Differential | 1°F / 0.5°C |
| Proportional Band | 2°F / 1°C |
| Maximum Ambient | 130°F / 54°C |
| Load Connections | Terminal blocks |
| Mounting | Installs on a standard 2″ x 4″ (50.8mm x 101.6 mm) device box |
| Agency Approvals | UL, UL Canada, CE |
MOUNTING INSTRUCTIONS
MODEL SELECTION GUIDE
| Model | Part Number | Description |
| TA158-100 | 68730 | Auto-Heat-Cool-Off, Off-Hi-Med-Lo Fan, On/Off Valves |
| TB158-100 | 68731 | Auto-Heat-Cool-Off, Off-Hi-Med-Lo Fan, 3-Wire or On/Off Valves |
| TC158-100 | 68732 | Auto-Heat-Off, On-Auto Fan |
| TH158-100 | 68733 | Heat Pump Control, Auto-Heat-Cool-Off, Auto-On Fan |
DOWNLOAD MANUALS:
PECO T158 Proportional Thermostats Product Specifications Guide
PECO T158 Proportional Thermostats Product Specifications Guide
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