Tekmar 255 manual

temperature control is achieved by using either a conventional thermostat system or by connecting a tekmar Zone Control to the 262.View and Download Tekmar D 255 data brochure online. Two Stage Boiler Control 255. D 255 controller pdf manual download. adjusted manually by pressing key simultaneously with either keys "d" (14) for channel 1, "h" (15) for channel 2 for "m" (16) for channel 3. tekmar Timer. Optional Follow the sensor testing instructions in this brochure and Operating range — -60 to 255°F (-50 to 125°C). Installation & operation manual, D 256, Boiler control 256 • Read online or download PDF • tekmar 256 Boiler Control User Manual. 2016 tekmar 665_D - 06/16. 665_D. 06/16. Snow Melting Replaces: 04/12. Snow Detector & Melting Control 665. Installation & Operation Manual.