Tekmar 553 - tekmarNet Thermostat, Two Stage Heat, One Stage Cool, Fan

In stock
SKU: 553
Regular price $382.14

Free Shipping on all orders over $89

Most orders ship same day!

Order by phone or Questions? (800) 468 5997

Customer Reviews

No reviews yet

Tekmar 553 Submittal

Tekmar 553 Installation & Operation Manual

Tekmar 553 User Manual

Tekmar 553 Application Brochure

Tekmar 553 Quick Setup Guide

Tekmar 553 - tekmarNet Thermostat, Two Stage Heat, One Stage Cool, Fan

The tekmarNet® Thermostat 553 is a communicating touchscreen thermostat designed to operate two heating stages, one cooling stage, a fan and relative humidity. The heating stages can be hydronic, forced air or a single stage heat pump. The cooling stage is either an air conditioner or heat pump. There are two auxiliary sensor inputs available to measure room, floor, outdoor, coil or duct temperature. The optional floor sensor allows precise heating of radiant floors by controlling the floor temperature and maintaining the desired room air temperature. Relative humidity level can be measured and controlled using the built-in humidity sensor. The large touchscreen allows you to easily adjust 7-day programmable schedules and room temperature to optimize comfort and energy savings. The 553 can connect to tekmarNet ® controls using two or four wires or it can operate as a stand-alone device.


  • Optimum start, scenes
  • Warm weather shut down, zone synchronization
  • Auto heating cycle, tekmarNet® communication compatible
  • Radiant floor heating and cooling, outdoor and floor temperature display
  • Touchscreen technology, 2 auxiliary sensor inputs
  • Daylight savings time, backlight
  • Temporary hold, away scene key
  • Air group master or member, network schedule master or member
  • Zone post purge, programmable schedule


  • Agency Approvals: Meets Class B: ICES & FCC Part 15
  • Ambient Conditions: Indoor use only, 32 to 122 degrees F (0 to 50 degrees C), RH less than or equal to 90 percent non-condensing
  • Control Type: Microprocessor control, this is not a safety (limit) control
  • Dimensions: 5" H x 3-1/4" W x 15/16" D (127 x 82 x 23 mm)
  • Enclosure Material: White ABS / PC plastic
  • Enclosure NEMA Rating: NEMA 1
  • Environmental Notice: Compatible with chlorinated swimming pool environments. Do not use in presence of ammonia (animal barns), methanol, ethanol, acetone.
  • Humidity Sensor: 0 to 90 percent plus / minus 3 percent RH
  • Power Supply: 24 V plus / minus 10 percent, 60 Hz, 1.8 VA standby, NEC / CEC Class 2
  • Relay: 24 V (ac 2 A)
  • Temperature Sensor: NTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta = 3892
  • Zoning - Thermostat Type: tekmarNet Thermostat


 Tekmar Zoning Solutions Video