Description

Tekmar 680 Snow Melting Control - BAS - Boiler & Mixing
Features:
- Idling
 - Tandem snow/ice detection
 - Slab protection
 - Exercising
 - Automatic snow/ice detection, supports both in-slab and retrofit aerial sensors
 - EconoMelt
 - Storm
 - Energy monitoring, BACnet or Modbus communication
 - Warm weather shut down, cold weather cut off
 
Specifications:
- Agency Approvals - CSA C US, meets class B: ICES & FCC Part 15
 - Ambient Conditions - Indoor use only, 32 to 122 degree F (0 to 50 degree C), less than 90 percent RH non-condensing
 - Analog Mixing Output - 0-10 V (dc) 500 ohms min impedance / 4-20 mA 1 k ohms max impedance
 - Boiler Modulation Output - 0-10 V (dc) 500 ohms min impedance / 4-20 mA 1 k ohms max impedance
 - Boiler Pump Relay - 230 V (ac), 5 A, 1/3 hp
 - Boiler Stage Relay -230 V (ac), 5 A
 - Communications Type - BACnet IP, BACnet MSTP, Modbus MSTP
 - Control Type - Microprocessor control, this is not a safety (limit) control
 - Dimensions - 8-1/16" H x 11-1/8" W x 2-15/16" D (204 x 282 x 74 mm)
 - Display - 3-1/4" color touchscreen, 320 x 205 pixels
 - Enclosure Material - PC+ABS plastic with steel conduit connection walls
 - Enclosure NEMA Rating - NEMA 1
 - Floating Mixing Output - 230 V (ac), 5 A
 - Flow Sensor - 4-20 mA, 20 V (dc) power supply by control
 - Injection Mixing Pump - 230 V (ac), 2.4 A
 - Power Supply - 115 V (ac) plus / minus 10 percent, 60 Hz, 43 VA standby, 320 VA max
 - Pressure Sensor - 0.5 - 4.5 V (dc) ratiometric, 10k ohms min load, 5 V (dc) power supply by control
 - Primary - System Pump Relay - 230 V (ac), 10 A, 1/2 hp
 - Sensor - NTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta=3892
 - Snow Melting Control Type - Snow Melting Control
 
Installation Manual
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