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557 | tekmarNet Thermostat - Radiant Floor, 2HP/Cool, Backup, Humidity | Tekmar

Brand: TekmarSKU: 557

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Overview Details for 557

tekmarNet Thermostat - Radiant Floor, 2HP/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

Optimum start, scenes
Radiant floor heating and cooling, outdoor and floor temperature display
Daylight savings time, backlight
Zone post purge, programmable schedule
Air group master, network schedule master or member
Auto heating cycle, tekmarNet^® communication compatible
Temporary hold, away scene key
Warm weather shut down, zone synchronization
Touchscreen technology, 3 Auxiliary sensor inputs

Specifications

Item Number	557
Brand	Tekmar
Category	tekmarNet Thermostats
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	4-1/2" H x 4-3/4" W x 7/8" D (114 x 120 x 22 mm)
Enclosure Material	White PVC 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, 2 VA standby, NEC / CEC Class 2
Relay	24 V (ac) 2A , 0-10 V (dc) Output
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