654
Tekmar Snow Melting Control 654 - tekmarNet® Electric or Hydronic Boiler / Mixing
654
Tekmar Snow Melting Control 654 - tekmarNet® Electric or Hydronic Boiler / Mixing
Tekmar Snow Melting Control 654 - tekmarNet® Electric or Hydronic Boiler / Mixing
Specifications
| Control | 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 | White PVC plastic, NEMA type 1 |
| Ambient conditions | -4 to 122°F (-20 to 50°C), <90% RH non-condensing, outdoor use permitted when installed inside a NEMA 3 enclosure |
| Power supply | 24 V (ac) ±10%, 60 Hz, Class 2, 16 VA standby, 100 VA fully loaded |
| Relay capacity | 24 V (ac) 2 A, 3.6 A combined |
| Modulating output | 0-10 V (dc), 500 ? minimum load impedance, 4-20 mA 1 k? max load impedance |
| Sensors | NTC thermistor, 10 k? @77°F (25°C ±0.2°C) ß=3892 |
| Included | Outdoor Sensor 070, Universal Sensor 082 |
| Optional | tekmar type #: 072, 073, 090, 091, 094, 095 |
| Warranty | Limited 3 Year Warranty |
The Snow Melting Control 654 is designed to operate electric or hydronic equipment to melt snow or ice from any surface including driveways, walkways, patios, business entrances, parking ramps, loading docks, hospital entrances, helipads or car wash bays. The surface temperature for snow melting is controlled automatically to reduce operating energy costs. The 654 has an automatic start and stop function when used with the Snow/Ice Sensor 090 or 094. Automatic start with a timed stop is available when used with the Snow Sensor 095. The 654 can operate a dedicated hydronic boiler or a mixing device. Isolation relays are required to operate line voltage pumps. Electric systems require a separate GFCI and electrical relay contactor.
- Automatic snow / ice detection, supports both in-slab and retrofit aerial sensors
- Manual start with timer, programmable schedule
- tekmarNet® communication compatible, warm weather shut down
- Cold weather cut-out, Idling
- Snow melt zoning with priority, tandem snow / ice detection
- Slab protection, storm
- EconoMelt , manual override
- Snow melt zone tracking, scenes
- Away key, exercising