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  Tekmar tekmarNet Thermostat 557 - Radiant Floor, 2 Heat Pump/Cool, Backup, Humidity
Tekmar tekmarNet Thermostat 557 - Radiant Floor, 2 Heat Pump/Cool, Backup, Humidity
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Tekmar tekmarNet Thermostat 557 - Radiant Floor, 2 Heat Pump/Cool, Backup, Humidity

The tekmarNet® Thermostat 557 is a communicating touchscreen thermostat designed to operate either: a hydronic radiant floor with a two stage heat pump (water-to-air or air-to-air) for heating & cooling and an emergency backup heating system; or two stages of heating and two stages of cooling. There are three auxiliary sensor inputs that can be used to measure room, floor, outdoor or duct temperature. The optional floor sensor allows precise heating of radiant floors. Relative humidity level can be measured and controlled using either the built-in or external humidity sensor. The large touchscreen display allows you to easily adjust 7-day programmable schedules and room temperatures to optimize comfort and energy savings. The 557 can connect to tekmarNet® controls using two or four wires or it can operate as a stand-alone device.

Features

  • 3 Auxiliary Sensor Inputs
  • Air Group Master
  • Auto Heating Cycle
  • Away Scene Key
  • Backlight
  • Daylight Savings Time
  • Exercising
  • Freeze Protection
  • Heat / Cool Priority
  • Network Schedule Master or Member
  • Optimum Start
  • Outdoor & Floor Temperature Display
  • Programmable Schedule
  • Radiant Floor Heating & Cooling
  • Relative Humidity Control
  • Room Temperature Limiting
  • Scenes
  • Temporary Hold
  • Touchscreen Technology
  • Warm Weather Shut Down
  • Zone Post Purge
  • Zone Synchronization
  • tekmarNet® Communication Compatible

Specifications

Control Microprocessor control. This is not a safety (limit) control
Packaged Weight 0.9 lb. (400 g)
Dimensions 4-1/2" H x 4-3/4" W x 7/8" D (114 x 120 x 22 mm)
Enclosure White PVC plastic, NEMA type 1
Approvals Meets Class B: ICES & FCC Part 15
Ambient conditions Indoor use only, 32 to 122ºF (0 to 50ºC), RH ≤90% non-condensing
Environmental Compatible with chlorinated swimming pool environments. Do not use in presence of ammonia (animal barns), methanol, ethanol, acetone.
Power Supply 24 V ±10%, 60 Hz, 2 VA standby, NEC / CEC Class 2
Relays 24 V (ac) 2A
0-10 V (dc) Output 3.3 V (dc) humidity sensor power, 3.0 mA maximum
Humidity Sensor 0 to 90% +/-3% RH
Temperature Sensor NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
-Included None
-Optional tekmar type # 070, 071, 072, 073, 076, 077, 078, 079, 082, 083, 084
Warranty Limited 3 Year Warranty

Current Literature

Product Submittal

Aug 2012 - Present

557_Cpdf

Installation & Operation Manual

Sep 2013 - Present (Dec 2012 and newer models)

557_Dpdf

Job Record

Aug 2013 - Present

557_Jpdf

Quick Setup Guide

Dec 2013 - Present

557_Qpdf

User Manual

Aug 2012 - Present

557_Updf



Part Number: 557

Quantity
Price
1$456.88
2 +$428.89


 
 
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