Submittal Sheet

control your environment
© Copyright 2005. PECO Inc. All Rights Reserved.
PECO is a registered trademark of PECO, Inc. The PECO logo is a trademark and/or service mark of PECO, Inc.
Automation and Controls
Division of PECO, Inc.
PO Box 82189, Portland, OR 97282
Phone: [phone]
Email: [e-mail]
www.pecomanufacturing.com
H i g h l i g h t s :
• Microprocessor Control
• LCD Display
• On/Off Temperature Control
Output
• Three-Wire Floating Control
Output
• Multi Speed Fan Switching
• 2-Pipe / 4-Pipe Configuration
• Summer/Winter Changeover
Option
• Setback Capability
• Staged Heat Option
• Operates at 50 or 60 Hz
• Fahrenheit or Celsius Display
A p p l i c a t i o n s :
• Three-Wire Floating Valves
• On/Off Valves, Damper, Relay
and Fan Systems
Temperature Range:
• Setpoint 50 to 90ºF /
10 to 32ºC
TB158 PROPORTIONAL THERMOSTAT –
ON/OFF AND THREE-WIRE FLOATING CONTROL
The TB158 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.
The digital display, with easy-to-use adjustment buttons, allows convenient access to current zone
temperature, setpoint temperature and operating mode. Optional pipe sensor changeover, setback and
auxiliary heat functions are available, on selected models, for adapting to application requirements.
Technical Specifications:
Temperature Range: 50 to 90ºF / 10 to 32ºC
Maximum Ambient: 130ºF / 54°C
Load Connections: Terminal blocks
Mounting: Installs on a standard 2”x 4” horizontal junction box
Agency Approvals: UL, UL Canada, CE