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552 | tekmarNet Thermostat - One Stage Heat | Tekmar

Brand: TekmarSKU: 552

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Overview Details for 552

tekmarNet Thermostat - One Stage Heat

The tekmarNet^® thermostat 552 is a communicating touchscreen thermostat designed for hydronic heating systems. The extra large touchscreen display allows you to easily adjust 7-day programmable schedules and room temperatures to optimize comfort and energy savings. It operates a single zone of heating and has two auxiliary sensor inputs that can be assigned to measure room, floor, or outdoor temperature. An optional floor sensor allows precise heating of radiant floors by controlling the floor temperature and maintaining the desired room air temperature. Alternatively the room air temperature sensor can also be disabled to solely maintain a minimum floor temperature. The 552 can be wired using 2 or 4 wires to connect to tekmarNet ^® zoning controls, or can be installed as a stand-alone thermostat using 3 wires.

Features

Pulse width modulation, outdoor temperature display
Away scene key, auto heating cycle
Exercising, room temperature limiting
Optional floor temperature display, air group member
2 Auxiliary sensor inputs, floor warming (with 079 slab sensor)
Backlight, freeze protection
tekmarNet^® communication compatible, touchscreen technology
Warm weather shut down, zone synchronization
Zone post purge, programmable setback schedule

Specifications

Item Number	552
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	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
Power Supply	24 V plus / minus 10 percent, 50/60 Hz, 1.8 VA Standby, 56 VA fully loaded, NEC / CEC Class 2
Relay	24 V (ac) 2 A
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