Tekmar Thermostat 518 1 Stage Heat PWM Hydronic Heating

Description

From a contractor's closeout, this item has a "refurbished" sticker and appears to be in good condition but cannot be tested since it is a hard-wired thermostat.
The Thermostat 518 accurately controls the room temperature for a hydronic heating zone using Pulse Width Modulation (PWM) technology. Simple up and down buttons and a display with large type make this thermostat easy to read and use. The 518 automatically detects a single auxiliary sensor to measure either outdoor, floor or remote room temperature. This easy to install thermostat is a direct replacement for tekmar Thermostats 507 and 508. An optional Adaptor Plate 012 is available which allows the thermostat to be installed onto a single gang electrical box.
Features
Pulse width modulation
Allows auxiliary sensor input (optional slab sensor 079 not included)
Radiant floor heating
Backlight
Auto heating cycle
Freeze protection
Outdoor and floor temperature display
Specifications
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
3-11/16" H x 3" W x 15/16" D (94 x 76 x 24 mm)
Enclosure Material
White PVC plastic
Enclosure NEMA Rating
NEMA 1
Power Supply
10 to 30 V (ac/dc), 50/60 Hz, 1.8 VA standby, 56 VA max fully loaded, Class 2
Relay
30 V (ac/dc) 2 A, Class 2 circuits
Sensor
NTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta = 3892
Zoning - Thermostat Type
Thermostat
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We are also happy to combine shipping on multiple purchases.
Thanks for your interest!
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