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Sample Application Drawings
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© 2015 P10052
Electric
A snow melting system is heated using
electric cables. The control connects
to an electrical contactor, which in turn
energizes the electric cables. The control
communicates with a building automation
system using BACnet or Modbus for remote
monitoring and adjustment.
Snow Melting Control 680
Outdoor
Sensor
Building Automation System
Electric Cables
Contactor
Electric Power
Supply
Snow
/Ice
Sensor
Optional
Tandem
Sensor
Hydronic Boiler and Mixing
A snow melting system is heated using a
hydronic boiler and mixing valve. When
snow or ice is detected, the control operates
the boiler and mixing valve to heat the slab
to the melting temperature. The mixing valve
protects the boiler from damage caused
by cold return temperatures. The control
communicates with a building automation
system using BACnet or Modbus for remote
monitoring and adjustment.
Steam-to-Glycol Heat Exchanger
A snow melting sytem is heated using a
modulating steam valve and steam-to-
glycol heat exchanger. When snow or ice is
detected, the control modulates the steam
valve position to heat the slab to the melting
temperature. The control communicates
with a building automation system using
BACnet or Modbus for remote monitoring
and adjustment.
Snow Melting Control 680
Building Automation System
Outdoor
Sensor
Snow
/Ice
Sensor
Optional
Tandem
Sensor
Boiler
Mixing
Valve
Flow
Sensor
Snow Melting Control 680
Building Automation System
Outdoor
Sensor
Snow
/Ice
Sensor
Optional
Tandem
Sensor
Steam
System
Steam
Valve
Flow
Sensor
Heat
Exchanger