Thermon HELLFIRE 400, Installation, Operation & Maintenance Instructions Manual

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E.10 Activating MODE Parameter
NOTE:
Read and understand the following procedure before
starting.
1. The controller must be powered on for a minimum of
60 seconds, the mode selector switch toggled OFF,
and terminals A1 A2 open (i.e. no RTC request).
2. Short jumper JP1. The RUN indication relay and LED
pulses on and off. After five RUN indication pulses,
the red ALARM LED lights for 3 seconds. This cycle
continues as long as the jumper, JP1, is shorted.
3. Count the number of times the red ALARM LED lights.
4. Once the count equals the parameter number,
remove the jumper before the ALARM LED turns off.
For
5. I.e. when the ALARM LED lights for the second
time removing the jumper will activate FAN MODE
DISABLE, parameter #2.
6. Function performed.
7. Parameter or new address is stored on the EEPROM.
8. Repeat sequence as required to activate other
parameters.
E.11 Fan Mode
1. When enabled for continuous operation, this mode
can be beneficial for locations with difficult to
detect drifting snow conditions that cause snow
accumulation in the turnout and or in the duct
system.
2. When enabled, and with the mode selector switch in
either the MANUAL or REMOTE/AUTO position, the
fan will run continuously, with heating requested or
not.
NOTE:
The fan will stop when the mode selector switch is in
the OFF position.
3. This parameter can be set, either, locally, or remotely
by the RCMS software.
4. Refer to RCMS documentation for remote activation.
E.12 Local EMS Mode
1. This parameter enables the locally installed EMS
module to control the heater according to the
module set points. If connected to a SCADA system,
all weather data will be transmitted to the system. No
other functions are affected by this mode.
2. The HEAT LED pulses to indicate that the local EMS
module can turn on the heater.
3. When disabled, the HEAT LED will not pulse. It will
light up when conditions are met, but it will not turn
on the heater.
E.13 RAIL THERMOSTAT Mode, Normal
1. With the introduction of the 2014 model Hellfire,
the rail thermostat operation was reversed. The
thermostat now opens when cold and closes when
warm.
2. When enabled, the controller is configured to operate
with the new, close on rise, COR, thermostat.
E.14 RAIL THERMOSTAT Mode, Reverse
1. When enabled, the controller is configured to
operate with the previous, open on rise, OOR,
thermostat.
E.15 Failure Shutdowns and Alarm Indications
1. In the event of a failure, the controller ceases the
heater operation and indicates alarm.
2. While the heater is shutdown and indicating alarm
the controller continues communications with the
RCMS software. All start requests, local or through
the RCMS software, are ignored until the problem is
resolved.
3. The controller indicates the nature of the failure in
three ways. LED’s on the controller, an alarm contact
closure, and error codes communicated via the RS-
485 serial port when under RCMS control.
NOTE:
With the exception of the communications TD, RD, and
TX LED’s. Solid green, solid green with a red pulse, or
yellow LED’s indicates normal status. Solid red and
alternating LED’s indicate a failure. This is true for the
controller only, not the EMS module.
4. There are two types of failure alarms, minor and major.
Both cease the heater operation, however, minor
alarms clear when the condition that caused the
failure rectifies itself. Major alarms, which are more
serious and require inspection, must be manually
reset.
E.16 Indications and Conditions
1. A failure exists when the STATUS and the ALARM
LED’s are solid red.
2. In addition, an alternating LED of equal duration
on and off, or red and green indicates the failure
condition.
3. Heaters connected via the RS-485 port to a network
and RCMS software will communicate fault codes.