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552 | tekmarNet Thermostat - One Stage Heat | Tekmar
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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 |
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