Thermon Fastrax, Installation & Operation Manual

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TABLE OF CONTENTS
A. Energy Management System Overview 2
A.1 Overview ...............................................................................2
B. EMS Installation 3
B.1 Mounting EMS Control Box ..................................... 3
B.2 Mounting Precipitation Sensor ............................ 3
B.3 Mounting Rail Thermostat ...................................... 3
C. Electrical Connections Overview 5
C.1 Power ..................................................................................... 5
C.2 Control .................................................................................. 5
C.3 Alarm Indication ............................................................ 5
C.4 Aggressive Retry ........................................................... 5
C.5 Operation and Adjustments .................................. 5
C.6 Switches & Dials ..............................................................6
C.7 Status LEDs ........................................................................6
D. Spare Parts & Drawings 7
D.1 Schematic - EMS Board Single Unit ..................8
A. ENERGY MANAGEMENT SYSTEM OVERVIEW
A.1 Overview
1. The Energy Management System (EMS) allows
automatic control of a railway switch heater. It detects
moisture and senses ambient, and rail temperature,
turning the heater on when it snows and the rail is
cold.
2. The EMS provides an aggressive retry for heaters
equipped with the appropriate remote Flame Safety
Relay reset.
3. The EMS provides a low temperature cut out feature
for use with propane fired heaters that do not have
tank heaters and are located in cold environments
where the temperature drops below -30°C (-22°F) to
avoid nuisance shutdowns due to insufficient vapour
pressure.
4. There are two EMS versions, 17255-01 comes with a
precipitation sensor, ambient temperature sensor,
rail thermostat, and control box, as shown. Whereas
version 17255-02, does not include the rail thermostat.
Control Box
Rail Thermostat
ArcticSense
Precipitation Sensor