Description
Tekmar 557 TekmarNet Thermostat – Radiant Floor – 2 Heat Pump/Cool – Backup – Humidity
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:
| 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 |
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