PECO T158 Proportional Thermostats Product Specifications Guide

PECO T158 Proportional Thermostats

HIGHLIGHTS

• Microprocessor Control
• Local or Remote Sensing
• On/Off Temperature Control Output
• Three-Wire Floating Control Output (TB158)
• Three Speed Fan Switching
• 2-Pipe/4-Pipe Configuration
• Manual or Auto Changeover
• Setback Capability
• Staged Heat (TB158)
• Operates at 50 or 60 Hz
• Fahrenheit or Celsius Display

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.

TECHNICAL SPECIFICATIONS

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

WIRING DIAGRAM

MOUNTING INSTRUCTIONS

RATINGS

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

• Automation and Controls Division of PECO, Inc.
• PO Box 82189, Portland, OR 97282
• Phone: 800-874-8547 / 503-233-6401
• Email: sales@pecomanufacturing.com

Reference:

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PECO T158 Proportional Thermostats Product Specifications Guide

PECO T158 Proportional Thermostats Product Specifications Guide