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  Tekmar tekmarNet® 4 One Stage Heat Thermostat
Tekmar tekmarNet® 4 One Stage Heat Thermostat
Click to enlarge

Tekmar tekmarNet® 4 One Stage Heat Thermostat

The tekmarNet® 4 Thermostat 538 is designed to operate mechanical equipment to deliver heat to a single zone within a hydronic heating system. It can be used with any terminal unit type, including radiant floor, baseboard, and fan coils. It is capable of controlling a zone valve or zone pump through a tekmarNet® 4 Wiring Center, Zone Manager, or directly from the thermostat in order to maintain air and an auxiliary temperature. That is typically a floor temperature, but could also be a remote air sensor. An optional Adaptor Plate 007 is available which allows the thermostat to be installed onto a single gang electrical box.

Features

  • 1 Auxiliary sensor input
  • Air Group member
  • Auto Heating Cycle
  • Backlight
  • CSA C US Approved for use in USA and Canada
  • Exercising
  • Floor warming (with 079 slab sensor)
  • Freeze Protection
  • Intelligent Setback (with tekmar 033 timer)
  • One touch overrides (with optional User Switch)
  • Outdoor temperature display
  • Pulse Width Modulation
  • Requires 4 wires
  • Room Temperature Limiting
  • Supports Radiant Floor Cooling
  • Zone Post Purge
  • Zone Synchronization
  • tekmarNet® 4 communication compatible

Specifications

Control Microprocessor control. This is not a safety (limit) control
Packaged weight 0.8 lb. (380 g)
Dimensions 2-7/8" H x 2-7/8" W x 13/16" D (73 x 73 x 21 mm)
Enclosure White PVC plastic, NEMA type 1
Approvals CSA C US, meets Class B: ICES & FCC Part 15
Ambient conditions Indoor use only, 32 to 122°F (0 to 50°C), RH ≤92% to 104°F (40°C), and 50% above 104°F (40°C), Altitude <9840 ft. (3000 m), Pollution Degree 2
Power supply 24 V ±10%, 50/60 Hz, 1.8 VA Standby, 56 VA fully loaded, NEC / CEC Class 2
Relay 24 V (ac) 2 A
Sensors NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
-Included None
-Optional tekmar type # 070, 072, 073, 076, 077, 079, 084
Warranty Limited 3 Year Warranty

Current Literature

Product Submittal

Nov 2011 - Present (2011 products and newer)

538_Cpdf

Installation & Operation Manual

Nov 2011 - Present (2011 products and newer)

538_Dpdf

Quick Setup Guide

Dec 2013 - Present

538_Qpdf

User Manual

Nov 2011 - Present (2011 products and newer)

538_Updf

Wiring Brochure

Dec 2008 - Present

538_Wpdf



Part Number: 538

Quantity
Price
1$124.32
2 +$115.57


 
 
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