Thermon Fastrax FEB Series Manual

Part No. M80000-004.Rev.1.02 July 2018 Printed in Canada
WARNING!
Read all important information notices on page 3. Please adhere to instructions published in this manual.
Failure to do so may be hazardous and may void certain provisions of your warranty.
Fastrax®is a registered trademark of Thermon Heating Systems Inc.
Copyright©2018. All rights reserved.
FEB - 20 208 1 - L A 01
AC Voltage
208, 240,
480, 600
DC Voltage*
600, 750
Phase
1
3
DC
Model Series
FEB – Fastrax® Electric
Hot Air Blower
Model Coding
Kilowatts
20, 40, 60
P r o  l e
Enclosure Material
Special
Construction
(if required)
A – Aluminum (Standard)
S – Stainless Steel
L – Standard
H – High
Fastrax®FEB Series
Electric Hot Air Blower
Installation, Maintenance, Repair &
Replacement Parts

TABLE OF CONTENTS
A. Important Notices 3
B. Installation 4
B.1 Recommended Tools & Equipment ............................................................................... 4
B.2 Torque Specifications .................................................................................................... 4
B.3 Site Preparation ............................................................................................................ 4
B.4 Distribution Duct Assembly ........................................................................................... 5
B.5 Distribution Duct Installation .......................................................................................... 6
B.6 Distribution Duct Installation For Concrete Ties.............................................................. 7
B.7 Discharge Nozzle Installation ......................................................................................... 8
B.8 Electric Blower Installation ............................................................................................. 9
B.9 Flexible Duct Installation .............................................................................................. 10
B.10 Ground Snow Sensor Installation .............................................................................. 10
B.11 Electrical Termination................................................................................................. 11
C. Wiring Schematics 12
C.1 Fastrax®FEB Electric Hot Air Blower - 20 kW Only, 240V, 1 Phase.............................. 12
C.2 Fastrax®FEB Electric Hot Air Blower - 20 kW, 40 kW & 60 kW, 480V, 3 Phase ........... 13
C.3 Fastrax®FEB Electric Hot Air Blower - 20 kW, 40 kW & 60 kW, 600V, 3 Phase ........... 14
D. Controls 15
D.1 Control Panel Features................................................................................................ 15
D.2 Control System Operating Modes .............................................................................. 15
D.3 User Interface ............................................................................................................. 16
D.4 Remote Signalling ....................................................................................................... 17
D.5 Smart Relay Operation ................................................................................................ 17
D.6 Smart Relay Display .................................................................................................... 17
D.7 Smart Relay Operation ................................................................................................ 20
D.8 Protection ................................................................................................................... 23
D.9 Smart Relay Inputs and Outputs ................................................................................. 23
D.10 Control Panel Layout................................................................................................. 24
E. Initial Startup/Commissioning 25
F. Quick Start Guide 25
G. Troubleshooting 26
H. Electric Blower Seasonal Maintenance 30
H.1 Fall Maintenance (Before Heating Season) ...............................................................................30
H.2 Spring Maintenance (After Heating Season)..............................................................................31
I. Part Assembly Diagrams 32
I.1 Fastrax®FEB Electric Hot Air Blower Parts List - 20 kW................................................ 32
I.2 Fastrax®FEB Electric Hot Air Blower Parts List - 40/60 kW........................................... 33
I.3 Control Panel Parts List ................................................................................................ 34
I.4 Fastrax®FEDP Duct Package ...................................................................................... 35
J. Warranty 36

3
Important Notices
Fastrax®is a leading manufacturer of complete engineered rail
heating packages for freight railroads and transit. We provide
the most efficient heat transfer products for rail track and switch
equipment. These products are designed for low maintenance
and long life for rugged use even in the harshest conditions. We
also custom design and manufacture energy saving automated
control packages to provide our customers with complete
heating solutions for rail industry applications.
The Fastrax®FEB Electric Hot Air Blower switch heater
prevents or removes ice and snow build up in the switch point
area by delivering high velocity heated air to nozzles located at
the switch point.
The Fastrax®FEB is assembled in a heavy-duty fully enclosed
housing with easily accessible internal components. These
components include a high velocity blower, rugged heating
module and advanced electronic controls. The Fastrax®
FEB comes standard with Fastrax®FEDP Duct Package
and Fastrax®automatic aerial and ground snow sensing
equipment.
A. IMPORTANT NOTICES
1. Read and follow all instructions in this manual.
2. Heater is to be connected and serviced only by a
qualified electrician.
3. Installation and wiring of the heater must adhere to all
applicable codes.
4. Disconnect heater from power supply at integral disconnect
or fuse box before opening enclosures or servicing heater.
IF INTEGRAL DISCONNECT IS BEING SERVICED, verify
power has been disconnected at fuse box or main panel.
Lock the switch in the “OFF” (open) position and tag the
switch to prevent unexpected power application.
5. This heater is equipped with a bimetal over temperature
high-limit. It is of the automatic reset type and therefore the
heater may restart without warning. The heater is not to be
operated with the high-limit disabled or disconnected from
the control circuit.
6. Operate the heater only while it is permanently mounted in
a horizontal position. Refer to Section B. Installation
for details.
7. Follow the recommended maintenance procedures in
Section H. Electric Blower Seasonal Maintenance.
8. Do not operate heater in ambient temperatures above
104°F (40°C).
9. Use factory approved replacement parts only.
10. See applicable electrical codes for seal requirements in
field installed conduits. Factory installed conduits require no
further sealing.
11. If there are any questions or concerns regarding the heater,
contact the factory. Refer to the last page of this manual
for details.
Read and adhere to the following. FAILURE TO DO
SO MAY RESULT IN SEVERE OR FATAL INJURY.
Warranty will be void.
WARNING
WARNING
CAUTION This symbol indicates a potentially hazardous
situation, which, if not avoided, may result in
personal injury or damage to the equipment.
CAUTION
This symbol indicates an imminently hazardous
situation, which, if not avoided, can result in serious
injury or damage to the equipment.
WARNING
WARNING

4
Installation
B. INSTALLATION
Read and adhere to the following installation
instructions. FAILURE TO DO SO MAY RESULT IN
SEVERE OR FATAL INJURY AND/OR POSSIBLE
VOIDING OF THE WARRANTY.
WARNING
WARNING
B.1 Recommended Tools & Equipment
• Picker truck or other means of lifting and placing the
electric blower unit (shipping weight with accessories is
585 lbs. (20 kW), 760 lbs. (40 kW), and 799 lbs. (60 kW).
• Electric impact wrench and sockets for running 9/16" lag
bolts
• 3/8" electric drill for pilot holes
• Portable generator for electric power tools
• Basic combination wrench set and basic socket wrench set
• Inch pounds torque wrench
• Tape measure
• Pry bar for the removal of crating materials
• Reciprocating saw for removal of crating materials and
trimming nozzles
• Shovel and rake for track ballast removal
• Lining and tamping bars
• Cold chisel and hammer
B.2 Torque Specifications
Electrical Equipment Torque Values
Part Type Description Torque
(in.lb.)
Terminals Control Circuits 9
Terminals Heater Load Circuits 27
Terminals Ground Block Terminals 14
Disconnect Up to 100A 50
Disconnect 100–200A 100
Contactors Pressure Plate Lugs 15–20
Contactors Box Lugs 40–45
Pwr. Dist. Block Primary 75
Pwr. Dist. Block Secondary 25–35
Circuit Breakers Heater and Control Loads 18
B.3 Site Preparation
1. The electric blower uses the FEDP Duct Package installed
between two permanent load bearing ties.
2. Refer to the duct layout diagram on page 5.
3. Take care not to damage aerial snow sensor when removing
the upper section of the shipping crate.
4. Remove the following and set aside for later assembly,
(refer to diagram on page 5):
Duct Pieces - Distribution Duct Sections, Isolation blocks
Discharge Nozzles
Flexible Duct
Hardware Kit
Rail Affixing Straps
Ensure all equipment and components delivered match
the shipping list provided. Notify Thermon Heating
Systems factory of any missing or damaged parts.
CAUTION
CAUTION
5. Carefully consider the placement of the distribution duct,
bearing in mind the length and angle of the discharge
nozzles and their proximity to the switch points.
5.1 Once the optimal position is identified, proceed with
ballast removal allowing extra clearance for isolators
and bolting flanges to pass underneath the rail. More
information can be found in the Distribution Duct
Installation section of this manual on page 6.
5.2 Nozzles can be trimmed if necessary. A reciprocating
saw with a fine metal blade can be used for this
operation. Maximum trim length is 3 inches.
6. Excavate the ballast from the predetermined area between
two load bearing ties.
6.1 Allow a minimum of 10" of clearance below the rail for
the entire width of the road bed.
Before testing tightness of any electrical connection,
disconnect, tag and lockout electrical feeder to
control panel to ensure entire panel is de-energized.
WARNING
WARNING
Aerial Snow Sensor

5
Installation
B.4 Distribution Duct Assembly
1. Assemble the distribution duct and electrical isolators as
detailed in the drawing below.
Item
#Qty Description Part Number
20 kW 40/60 kW
1 1 2 piece tie duct, 76" Fastrax®FEDP 12972 12984
2 1 Flex duct 60" - Fastrax®FEDP 12971-60 13031-60
324 Washer, 1/4 flat plated SAE 1516
424 Lockwasher 1/4" split 74 0 6
524 Nut-1/4-20 UNC-H-SZP A10 6 85 - 04
6 2 Isolation block c/w integrated bolts 12983 12986
2. Repeat the process for the attachment of the flexible duct
and the distribution duct using the hardware and isolation
block supplied as detailed in the drawing below.
P#7406
x6
P#1516
x12
P#4973
x6
P#A10685-04
x6
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x6
P#1516
x6
P#5113
x6
P#12934
x4
PER NOZZLE AND TIE STRAP
ITEM # PART # QTY DESCRIPTION
1 12972 1 2-PIECE TIE DUCT, 76" - FASTRAX EB
2 12973 2 POINT NOZZLE - FASTRAX EB
3 12971 1 FLEX DUCT 60" - FASTRAX EB
41516 48 WASHER, 1/4 FLAT PLATED SAE
57406 42 LOCKWASHER 1/4" SPLIT
6 A10685-04 30 Nut-1/4-20 UNC-H-SZP
74973 18 BOLT 1/4-20UNC x 3/4"LG, HEX HEAD
8 12934 8 LAG BOLT, 3/8" x 2"
9 12886 1 ELEMENT ENCL. c/w TIE DUCT BOLT PLATE - FASTRAX EB 20
10 12906 1 GASKET, TIE DUCT, GARLOCK 9850 - FASTRAX EB 20
11 12982 2 TIE STRAP - FASTRAX EB
12 12983 2 ISOLATION BLOCK c/w INTEGRATED BOLTS
x1
(NTS)
x1
(NTS)
x1
(NTS)
P#12983 / 12986
P#12983 / 12986
P#12906 / 13035
Do not exceed 50 in.lb. torque on the electrical
isolation joints or the isolation block will be damaged.
WARNING
WARNING
NOTE: Ducting connections are electrically isolated to
eliminate the possibility of short circuiting the rails.
Connections are designed and tested to withstand
3000 volts for a duration of 1 minute.
Automatic Aerial
Snow Sensor
Rail Affixing Straps
Isolation Blocks
Optional High
Profile Air Intake
Optional Adjustable Stand
Discharge Nozzles
Structurally Reinforced
Lifting Points
Automatic Ground
Snow Sensor
Flexible Duct
Distribution Duct
Sections
Main Electrical Wiring Entries
2
P#7406
x6
P#1516
x12
P#4973
x6
P#A10685-04
x6
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x6
P#1516
x6
P#5113
x6
P#12934
x4
PER NOZZLE AND TIE STRAP
ITEM # PART # QTY DESCRIPTION
1 12972 1 2-PIECE TIE DUCT, 76" - FASTRAX EB
2 12973 2 POINT NOZZLE - FASTRAX EB
3 12971 1 FLEX DUCT 60" - FASTRAX EB
41516 48 WASHER, 1/4 FLAT PLATED SAE
57406 42 LOCKWASHER 1/4" SPLIT
6 A10685-04 30 Nut-1/4-20 UNC-H-SZP
74973 18 BOLT 1/4-20UNC x 3/4"LG, HEX HEAD
8 12934 8 LAG BOLT, 3/8" x 2"
9 12886 1 ELEMENT ENCL. c/w TIE DUCT BOLT PLATE - FASTRAX EB 20
10 12906 1 GASKET, TIE DUCT, GARLOCK 9850 - FASTRAX EB 20
11 12982 2 TIE STRAP - FASTRAX EB
12 12983 2 ISOLATION BLOCK c/w INTEGRATED BOLTS
x1
(NTS)
x1
(NTS)
x1
(NTS)
P#12983 / 12986
P#12983 / 12986
P#12906 / 13035
1
4
3
5
6
4
53
1
4
35
6
4
5
3
P#7406
x6
P#1516
x12
P#4973
x6
P#A10685-04
x6
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x6
P#1516
x6
P#5113
x6
P#12934
x4
PER NOZZLE AND TIE STRAP
ITEM # PART # QTY DESCRIPTION
1 12972 1 2-PIECE TIE DUCT, 76" - FASTRAX EB
2 12973 2 POINT NOZZLE - FASTRAX EB
3 12971 1 FLEX DUCT 60" - FASTRAX EB
41516 48 WASHER, 1/4 FLAT PLATED SAE
57406 42 LOCKWASHER 1/4" SPLIT
6 A10685-04 30 Nut-1/4-20 UNC-H-SZP
74973 18 BOLT 1/4-20UNC x 3/4"LG, HEX HEAD
8 12934 8 LAG BOLT, 3/8" x 2"
9 12886 1 ELEMENT ENCL. c/w TIE DUCT BOLT PLATE - FASTRAX EB 20
10 12906 1 GASKET, TIE DUCT, GARLOCK 9850 - FASTRAX EB 20
11 12982 2 TIE STRAP - FASTRAX EB
12 12983 2 ISOLATION BLOCK c/w INTEGRATED BOLTS
x1
(NTS)
x1
(NTS)
x1
(NTS)
P#12983 / 12986
P#12983 / 12986
P#12906 / 13035
P#7406
x6
P#1516
x12
P#4973
x6
P#A10685-04
x6
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x6
P#1516
x6
P#5113
x6
P#12934
x4
PER NOZZLE AND TIE STRAP
ITEM # PART # QTY DESCRIPTION
1 12972 1 2-PIECE TIE DUCT, 76" - FASTRAX EB
2 12973 2 POINT NOZZLE - FASTRAX EB
3 12971 1 FLEX DUCT 60" - FASTRAX EB
41516 48 WASHER, 1/4 FLAT PLATED SAE
57406 42 LOCKWASHER 1/4" SPLIT
6 A10685-04 30 Nut-1/4-20 UNC-H-SZP
74973 18 BOLT 1/4-20UNC x 3/4"LG, HEX HEAD
8 12934 8 LAG BOLT, 3/8" x 2"
9 12886 1 ELEMENT ENCL. c/w TIE DUCT BOLT PLATE - FASTRAX EB 20
10 12906 1 GASKET, TIE DUCT, GARLOCK 9850 - FASTRAX EB 20
11 12982 2 TIE STRAP - FASTRAX EB
12 12983 2 ISOLATION BLOCK c/w INTEGRATED BOLTS
x1
(NTS)
x1
(NTS)
x1
(NTS)
P#12983 / 12986
P#12983 / 12986
P#12906 / 13035
Main Tie Duct

6
Installation
B.5 Distribution Duct Installation
1. Position the assembled distribution duct in the excavated
area between the ties by placing the closed end under the rail.
2. Slide the assembled distribution duct in the excavated area
until the nozzle discharge openings are at equal distances
between the rails.
3. Use temporary blocking to raise the distribution duct until it
is flush with the undersides of both rails.
4. Temporarily insert the discharge nozzles into their sockets
in the distribution duct and verify that the nozzle tips will
not interfere with the switch points. Leave a minimum of 2"
clearance between the end of the nozzle and the rail web.
5. Adjust the distribution duct position as necessary before
installing the tie straps as shown in the photo below. For
ease of installation, pre-drill pilot holes to facilitate threading
of the lag bolts into the railroad tie.
6. Carefully replace the ballast underneath and along each side
of the distribution duct. Ensure the duct remains level and
the discharge nozzles are aimed at the rail web of the switch
point, not above or below. Ensure the nozzle is positioned
correctly to remove snow between the switch points.
7. Remove the blocking and back fill with ballast as required.

7
Installation
B.6 Distribution Duct Installation For Concrete Ties
1. Position the assembled distribution duct in the excavated area
between the ties by placing the closed end under the rail.
2. Temporarily block up ducting to a height where tie straps
can be attached. Attach the Tie Straps and remove blocking.
Ducting should hang from the ties by the tie straps.
3. Turn each jack bolt out until the points are secure against
concrete wall of ties. Tighten with wrench until tool tight.
4. Turn keeper nut down to secure each jack bolt into place.
Duct should now be secure at the height desired.
5. Remove the tie straps and apply epoxy to both ends where
it will contact the ties.
6. Carefully place the tie straps back onto ties by aligning
bolting holes and securing with provided hardware.
7. Back fill with ballast as required.

8
Installation
B.7 Discharge Nozzle Installation
1. Complete the installation of the nozzles using the hardware
as detailed in the drawing below. Follow the precise
installation order to ensure proper assembly.
Item
#Qty Description Part Number
20 kW 40/60 kW
1 2 Discharge nozzle - Fastrax®FEDP 12973 12985
212 Washer, 1/4 flat plated SAE 1516
312 Lockwasher 1/4" split 74 0 6
412 Bolt 1/4-20UNC x 1" LG, Hex Head 5113
5 8 Lag bolt, 3/8" x 2" 12934
6 2 Tie strap - Fastrax®FEB 12982
2. Insert the discharge nozzles into their sockets. Aim the
nozzles at the rail web of the switch points and secure in
position.
2.1 Using a multimeter, verify the distribution duct sections
are electrically isolated from one another by checking
for lack of continuity.
P#7406
x6
P#1516
x12
P#4973
x6
P#A10685-04
x6
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x6
P#1516
x6
P#5113
x6
P#12934
x4
PER NOZZLE AND TIE STRAP
ITEM # PART # QTY DESCRIPTION
1 12972 1 2-PIECE TIE DUCT, 76" - FASTRAX EB
2 12973 2 POINT NOZZLE - FASTRAX EB
3 12971 1 FLEX DUCT 60" - FASTRAX EB
41516 48 WASHER, 1/4 FLAT PLATED SAE
57406 42 LOCKWASHER 1/4" SPLIT
6 A10685-04 30 Nut-1/4-20 UNC-H-SZP
74973 18 BOLT 1/4-20UNC x 3/4"LG, HEX HEAD
8 12934 8 LAG BOLT, 3/8" x 2"
9 12886 1 ELEMENT ENCL. c/w TIE DUCT BOLT PLATE - FASTRAX EB 20
10 12906 1 GASKET, TIE DUCT, GARLOCK 9850 - FASTRAX EB 20
11 12982 2 TIE STRAP - FASTRAX EB
12 12983 2 ISOLATION BLOCK c/w INTEGRATED BOLTS
x1
(NTS)
x1
(NTS)
x1
(NTS)
P#12983 / 12986
P#12983 / 12986
P#12906 / 13035
1
4
4
3
2
5
2
3
6

9
Installation
B.8 Electric Blower Installation
1. Prepare the area where the electric blower unit will be placed.
1.1 The area should be clear of any foliage or foreign
objects that might be drawn into the Fastrax®FEB ‘s air
intake.
2. Ensure the grade is level before installation. A thick layer of
ballast material providing good drainage is recommended.
3. The electric blower unit is shipped on pressure treated
wooden blocks which should be left in place to ensure
maximum protection from water ingress; an optional
adjustable metal stand is available.
Wood Stand
4. Using the four lifting points, lift the unit and place it
perpendicular or parallel to the track bed.
4.1 Ensure it is close enough for the flexible duct to
reach between the connecting flanges on the blower
discharge and the distribution duct inlet without
obstruction or pinching.
5. Once the electric blower unit is in position remove the
remaining exterior crating except for the wooden base
blocks attached to the unit.
5.1 Ensure no projections on the unit interfere with the rail
line foul zone.
Adjustable Stand
Ensure the unit is installed at least six inches above
the level at which ground water might accumulate.
Failure to do so could cause damage to the unit
and void the warranty.
WARNING
WARNING
6"
At least six inches
above grade

10
Installation
B.9 Flexible Duct Installation
Item
#Qty Description Part Number
20 kW 40/60 kW
1 1 Flex duct 60" - Fastrax®FEDP 12971-60 13031-60
212 Washer, 1/4 flat plated SAE 1516
3 6 Lockwasher 1/4" split 74 0 6
4 6 Nut-1/4-20 UNC-H-SZP A10 6 85 - 04
5 2 Bolt 1/4-20UNC x 3/4" LG,
Hex Head 4973
6 1 Element Encl. c/w tie duct bolt
plate - Fastrax®12886
7 1 Gasket, tie duct, garlock
9850 - Fastrax®12906 13035
8 4 Bolt 1/4-20UNC x 1" LG, Hex Head 5113 13033
1. Attach the flexible duct to the blower discharge flange
with the gasket and hardware provided as shown in
diagram above.
2. Draw the fasteners snug in an even diagonal pattern and
torque to 50 in.lb.
3. To eliminate excess strain on the duct and connections,
ballast may be used to support the flexible duct as required.
3.1 Additional ballast can be added around the perimeter of
the blower unit and between the blocking to keep the unit
firmly in place.
4. Using a multimeter, verify the flexible duct and distribution
duct sections are electrically isolated from one another by
checking to ensure there is no continuity.
B.10 Ground Snow Sensor Installation
1. Select an elevated location for the ground snow sensor.
Bolting the ground snow sensor to the end of the rail tie,
where possible, is recommended.
1.1 Secure in place, as depicted in the pictures below.
P#7406
x6
P#1516
x12
P#4973
x2
P#A10685-04
x6
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x6
P#1516
x6
P#5113
x6
P#12934
x4
PER NOZZLE AND TIE STRAP
ITEM # PART # QTY DESCRIPTION
112972 1 2-PIECE TIE DUCT, 76" - FASTRAX EB
212973 2 DISCHARGE NOZZLE - FASTRAX® FEDP
312971 1 FLEX DUCT 60" - FASTRAX EB
41516 48 WASHER, 1/4 FLAT PLATED SAE
57406 42 LOCKWASHER 1/4" SPLIT
6 A10685-04 30 Nut-1/4-20 UNC-H-SZP
74973 2 BOLT 1/4-20UNC x 3/4"LG, HEX HEAD
812934 8 LAG BOLT, 3/8" x 2"
912886 1 ELEMENT ENCL. c/w TIE DUCT BOLT
PLATE - FEB 20
10 12906 1 GASKET, TIE DUCT - FEB 20
11 5113 16 BOLT 1/4-20UNC x 1"LG, HEX HEAD
12 12982 2 TIE STRAP - FASTRAX EB
13 12983 2 ISOLATION BLOCK c/w INTEGRATED
BOLTS
1
2
3 5 4
4 5 6
4 5 6
6 5 4
P#12983
x1
(NTS)
P#12983
x1
(NTS)
11
5
4
11
5
4
8
13
13
12
P#12906
x1
(NTS)6
1
N/A
HARDWARE, DUCTING PACKAGE
ANGULAR
CHK'D BY:
APP'D. BY:
SCALE:
DRN BY:
±
DWG NO.:
TITLE:
SYTELINE NO.: METRIC
TOLERANCE UNLESS NOTED OTHERWISE
DECIMAL FRACTIONAL
REVISION DESCRIPTION
REV. BYDATE
1/2° 0.005" 1/16" 1 mm
SHEET:
GMillard 19 Feb 2016
±±±
EDMONTON, ALBERTA
1 OF 3
P#5113
x2
6
7
1
25
2
4
3
P#7406
x6
P#1516
x12
P#4973
x6
P#A10685-04
x6
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x12
P#1516
x12
P#A10685-04
x12
P#7406
x6
P#1516
x6
P#5113
x6
P#12934
x4
PER NOZZLE AND TIE STRAP
ITEM # PART # QTY DESCRIPTION
1 12972 1 2-PIECE TIE DUCT, 76" - FASTRAX EB
2 12973 2 POINT NOZZLE - FASTRAX EB
3 12971 1 FLEX DUCT 60" - FASTRAX EB
41516 48 WASHER, 1/4 FLAT PLATED SAE
57406 42 LOCKWASHER 1/4" SPLIT
6 A10685-04 30 Nut-1/4-20 UNC-H-SZP
74973 18 BOLT 1/4-20UNC x 3/4"LG, HEX HEAD
8 12934 8 LAG BOLT, 3/8" x 2"
9 12886 1 ELEMENT ENCL. c/w TIE DUCT BOLT PLATE - FASTRAX EB 20
10 12906 1 GASKET, TIE DUCT, GARLOCK 9850 - FASTRAX EB 20
11 12982 2 TIE STRAP - FASTRAX EB
12 12983 2 ISOLATION BLOCK c/w INTEGRATED BOLTS
x1
(NTS)
x1
(NTS)
x1
(NTS)
P#12983 / 12986
P#12983 / 12986
P#12906 / 13035
8

11
Installation
B.11 Electrical Termination
Surge Protection Recommendations
This electric blower utilizes a number of processor-based control
systems, all of which are susceptible to damage from lightning and
other electrical surges. While every effort has been made to ensure
that the control systems have been adequately ‘hardened’, Thermon
Heating System’s surge mitigation efforts can only be effective if ALL
external remote circuits connecting to the electric blower have been
protected by primary surge protection devices in accordance with
the following generally accepted requirements for surge protection of
wayside signal equipment:
• Provide primary surge protection devices (standard
signal air gap arresters) on all external electric blower
control I/O circuits. These arresters should be located
“upstream” of the electric blower housing (within the
signal housing, which interfaces to the electric blower).
It is essential to protect ALL circuits entering or leaving
the signal housing.
• Provide a primary surge protection device
(commercial high capacity MOV type) on the
external electric blower AC power feed. This surge
protection device should be located “upstream” of
the electric blower in conjunction with the electrical
service entrance panel and main disconnect.
Observe primary surge protector manufacturer’s
instructions for installation and circuit breaker
protection (if required).
• Grounding of the electric blower metal housing as
well as the ground terminals of the primary arresters
is essential for personnel protection as well as surge
protection. Grounding rods and conductors must
be installed in accordance with the AREMA Signal
Manual of Recommended Practice.
• Primary surge protection must be installed in
accordance with the AREMA Signal Manual of
Recommended Practice.
Electrical connections are to be performed by qualified
personnel and in accordance with the local electrical
code and the local electrical authority.
WARNING
WARNING
1. Connection entries for electrical conduits are located
on the right hand side of the discharge duct. The power
connection entry is 1 1/4" NPT and the remote signal entry
is 1/2" NPT.
2. The use of water tight connections for incoming conduits
is mandatory. See applicable electrical codes for seal
requirements of field installed conduits.
3. Conductors are to be sized in accordance with the electrical
code and the minimum circuit ampacity data as detailed on the
unit’s data plate.
Thermon Heating Systems Inc.
4. Incoming supply lines should be connected directly to
the main disconnect switch. Where applicable the neutral
should be connected to the neutral lug and grounded at
the source.
See photo detail below for electrical connection points.
Electrical Connection Points
5. The control chassis and the rest of the main unit must be
connected to ground.
6. The maximum allowable deviation from rated voltage to
supply line voltage is 5%. Verify voltage is present on all
three lines for three phase units and two lines for single
phase units.
7. Customer requested external low voltage signal inputs and
outputs shall be routed through the secondary connection
point adjacent to the main power connection. Termination of
remote operator controls is found in Section D. Controls of
this manual under D.4 Remote Signalling.
8. Manually spin the blower shaft to ensure the blower turns freely.
9. The electric blower unit is electrically isolated from the track
by the isolation block between the distribution duct and the
flexible duct.

12
Wiring Schematics
C. WIRING SCHEMATICS
C.1 Fastrax®FEB Electric Hot Air Blower - 20 kW Only, 240V, 1 Phase
Smart
Relay
EATON
Easy719-
AB-RC
Control Transformer 250 VA
L
Output 1
Q1-2
Output 1
Q1-1
Output 2
Q2-2
Output 2
Q2-1
Output 4
Q4-2
Output 4
Q4-1
Blower On
G
Control On
W
Elementary Wiring Diagram
Field Wiring
Aerial
Snow
Sensor
Snow
Sensed
L2 L1
Remote
Signals
G
Heat On
Output 3
Q3-2
Output 3
Q3-1
High Temperature
Limit
230V
N
C1
Blower
Contactor
C2
Heater
Contactor
Disconnect Switch
600 V, 200 A
240 V, 75 HP
CB240-2
Primary Control
Circuit Breaker
480Y/277V, 2 A
MS240-1/
Aux
CR1
Fault Feedback
Relay
R
C1/Aux/A
Run Feedback 120 VAC 10 A
C
NC
NO
CR1/B
Fault Feedback 120 VAC 10 A
C
NC
NO
AS24-1 AS24-2
SSA-1 SSA-2
A1 A2 A3 A4 A5 A6
RSS-2 RSS-1
Power
L1 L2
Ground
Snow
Sensor
Snow
Sensed
L2 L1
GS24-1 GS24-2
SSG-1 SSG-2
CR2/A CR3/A
System Fault
R
CR1/A
C
NC
NO
Manual Start
RSS-1 RSS-2
Manual Stop
Cold Air Mode
CR3/B
MS240-1/Aux
CB24-3/
Aux
CB24-2/
Aux
Remote Timeout
Mode
Blower Motor
3 HP, 3450 RPM,
1Φ, 60 Hz,
230 V, 14.5 FLA
M
Legend:
Panel Wiring Field Wiring
Terminal Block
C2
Heater Contactor
600 V, 105 A
Duct Heater
20 kW, 240 V, 1Φ
CB240-1
Heater Branch
Circuit Breaker
480Y/277V, 125 A
Remote Start/Stop
120 VAC
Remote Start: RSS-1 and RSS-2 closed Run Indication: A1 and A2 closed
A1 and A3 opened
Fault Indication: A4 and A6 closed
A4 and A5 opened
TSA-1 TSA-2
CR2
TSB-2 TSB-2
CR3
MS240-1
Combination Motor Controller
230 V, 5 HP
Setting: 15 A
C1
Blower Contactor
230 V, 7.5 HP
CR2/B
Primary High Temperature Limit
300 °F Setpoint, Auto Reset
Backup High Temperature Limit
400 °F Setpoint, Manual Reset
24V
CB24-1 Secondary Control Circuit Breaker
277 V, 3 A
CB24-2
Aerial Snow Sensor
Circuit Breaker
277 V, 2 A
CB24-3
Ground Snow Sensor
Circuit Breaker
277 V, 4 A
Input 2 I2 Input 3 I3 Input 1 I1 Input 4 I4 Input 5 I5 Input 6 I6 Input 7 I7 Input 8 I8 Input 9 I9 Input 11 I11 Input 10 I10
SSG-1 SSG-2
SSA-1 SSA-2
C1/
Aux/B

13
Wiring Schematics
Smart
Relay
EATON
Easy719-
AB-RC
L
Output 1
Q1-2
Output 1
Q1-1
Output 2
Q2-2
Output 2
Q2-1
Output 4
Q4-2
Output 4
Q4-1
Blower On
G
Control On
W
Field Wiring
Aerial
Snow
Sensor
Snow
Sensed
L2 L1
Remote
Signals
G
Heat On
Output 3
Q3-2
Output 3
Q3-1
High Temperature
Limit
N
C1
Blower
Contactor
C2
Heater
Contactor
Disconnect Switch
600 V, 40 A (40 kW Models: 80 A, 60 kW Models: 100 A)
480 V, 20 HP (40 kW Models: 40 HP, 60 kW Models: 50 HP)
MS480-1/
Aux
CR1
Fault Feedback
Relay
R
C1/Aux/A
Run Feedback 120 VAC 10 A
C
NC
NO
CR1/B
Fault Feedback 120 VAC 10 A
C
NC
NO
AS24-1 AS24-2
SSA-1 SSA-2
A1 A2 A3 A4 A5 A6
RSS-2 RSS-1
Power
L1 L2 L3
Ground
Snow
Sensor
Snow
Sensed
L2 L1
GS24-1 GS24-2
SSG-1 SSG-2
CR2/A CR3/A
System Fault
R
CR1/A
C
NC
NO
Input 2 I2
Manual Start
Input 3 I3
RSS-1 RSS-2
Input 1 I1
Manual Stop
Input 4 I4
Cold Air Mode
Input 5 I5 Input 6 I6
CR3/B
Input 7 I7
MS480-1/Aux
Input 8 I8 Input 9 I9
CB24-3/
Aux
CB24-2/
Aux
Remote Timeout
Mode Input 11
I11
Legend:
Panel Wiring Field Wiring
Terminal Block
Remote Start/Stop
120 VAC
Remote Start: RSS-1 and RSS-2 closed Run Indication: A1 and A2 closed
A1 and A3 opened
Fault Indication: A4 and A6 closed
A4 and A5 opened
CB24-2
Aerial Snow Sensor
Circuit Breaker
277 V, 2 A
CB24-3
Ground Snow Sensor
Circuit Breaker
277 V, 4 A
CR2/B
SSG-1 SSG-2
SSA-1 SSA-2
Input 10 I10
Control Transformer 250 VA
460V
CB480-2
Primary Control
Circuit Breaker
480Y/277V, 1 A
24V
CB24-1 Secondary Control Circuit Breaker
277 V, 3 A
C1/
Aux/B
TSA-1 TSA-2
CR2
TSB-2 TSB-2
CR3
Primary High Temperature Limit
300 °F Setpoint, Auto Reset
Backup High Temperature Limit
400 °F Setpoint, Manual Reset
Input 12 I12
Control Ambient
High Temperature Limit
40 kW and 60 kW
Models Only
Blower Motor
460 V, 3500 RPM,
3Φ, 60 Hz, 3 HP, 3.4 FLA
(7.5 HP, 9 FLA in
40 & 60 kW Models)
M
C2
Heater Contactor
480 V, 45 A
(55 A in 40 kW Model)
(105 A in 60 kW Model)
Duct Heater 1
20 kW, 480 V, 3Φ
CB480-1
Heater Branch
Circuit Breaker
480V, 25 A
(60 A in 40 kW Model) (90 A in 60 kW Model)
C1
Blower Contactor
460 V, 15 HP
Duct Heater 2
20 kW, 480 V, 3Φ
Duct Heater 3
20 kW, 480 V, 3Φ
40 kW and 60 kW
Models Only 60 kW Models Only
MS480-1
Combination Motor Controller
460 V, 3 HP, Setting: 4 A
(460 V, 7.5 HP, Setting: 11 A
in 40 & 60 kW Models)
C.2 Fastrax®FEB Electric Hot Air Blower - 20 kW, 40 kW & 60 kW, 480V, 3 Phase

14
Wiring Schematics
C.3 Fastrax®FEB Electric Hot Air Blower - 20 kW, 40 kW & 60 kW, 600V, 3 Phase
Smart
Relay
EATON
Easy719-
AB-RC
Control Transformer 250 VA
L
Output 1
Q1-2
Output 1
Q1-1
Output 2
Q2-2
Output 2
Q2-1
Output 4
Q4-2
Output 4
Q4-1
Blower On
G
Control On
W
Field Wiring
Aerial
Snow
Sensor
Snow
Sensed
L2 L1
Remote
Signals
G
Heat On
Output 3
Q3-2
Output 3
Q3-1
High Temperature
Limit
575V
N
C1
Blower
Contactor
C2
Heater
Contactor
MS600-1/
Aux
CR1
Fault Feedback
Relay
R
C1/Aux/A
Run Feedback 120 VAC 10 A
C
NC
NO
CR1/B
Fault Feedback 120 VAC 10 A
C
NC
NO
AS24-1 AS24-2
SSA-1 SSA-2
A1 A2 A3
A4
A5
A6
RSS-2 RSS-1
Power
L1 L2 L3
Ground
Snow
Sensor
Snow
Sensed
L2 L1
GS24-1 GS24-2
SSG-1 SSG-2
CR2/A CR3/A
System Fault
R
CR1/A
C
NC
NO
Manual Start
RSS-1 RSS-2
Manual Stop
Cold Air Mode
CR3/B
MS600-1/Aux
CB24-3/
Aux
CB24-2/
Aux
Remote Timeout
Mode
Blower Motor
575 V, 3500 RPM, 3Φ, 60 Hz, 3 HP, 2.7 FLA
(7.5 HP, 7.4 FLA in
40 & 60 kW Models)
M
Legend:
Panel Wiring Field Wiring
Terminal Block
C2
Heater Contactor
600 V, 45 A
(55 A in 40 kW Model)
(105 A in 60 kW Model)
Duct Heater 1
20 kW, 600 V, 3Φ
CB600-1
Heater Branch
Circuit Breaker
600V, 25 A
(50 A in 40 kW Model) (80 A in 60 kW Model)
Remote Start/Stop
120 VAC
Remote Start: RSS-1 and RSS-2 closed Run Indication: A1 and A2 closed
A1 and A3 opened
Fault Indication: A4 and A6 closed
A4 and A5 opened
TSA-1 TSA-2
CR2
TSB-2 TSB-2
CR3
C1
Blower Contactor
575 V, 20 HP
Duct Heater 2
20 kW, 600 V, 3Φ
Duct Heater 3
20 kW, 600 V, 3Φ
CR2/B
40 kW and 60 kW
Models Only 60 kW Models Only
Primary High Temperature Limit
300 °F Setpoint, Auto Reset
Backup High Temperature Limit
400 °F Setpoint, Manual Reset
MS600-1
Combination Motor Controller
575 V, 3 HP, Setting: 3 A
(575 V, 7.5 HP, Setting: 9 A
in 40 & 60 kW Models)
SSG-1 SSG-2
SSA-1 SSA-2 Input 2
I2 Input 3 I3 Input 1 I1 Input 4 I4 Input 5 I5 Input 6 I6 Input 7 I7 Input 8 I8 Input 9 I9 Input 11 I11 Input 10 I10
24V CB24-1
Secondary Control Circuit Breaker
277 V, 3 A
CB24-2
Aerial Snow Sensor
Circuit Breaker
277 V, 2 A
CB24-3
Ground Snow Sensor
Circuit Breaker
277 V, 4 A
MS600-2
Transformer Circuit Breaker
600 V, 1.6 A, Setting: 1.4 A
Disconnect Switch
600 V, 40 A (40 kW Models: 60 A, 60 kW Models: 80 A)
600 V, 25 HP (40 kW Models: 30 HP, 60 kW Models: 40 HP)
C1/
Aux/B
Input 12 I12
Control Ambient
High Temperature Limit
40 kW and 60 kW
Models Only

15
Controls
D. CONTROLS
The Fastrax®FEB electric blower control panel located inside the
unit incorporates modern technology including a smart relay to
ensure efficient and economical operation and is designed for
ease of operation and servicing. Each control panel is NEMA 4
rated for protection against moisture.
The controls have been preconfigured for optimal snow melting
operation with minimum user input. If desired, advanced
diagnostics, troubleshooting and timing/mode adjustment features
are readily available.
D.1 Control Panel Features
Control System Features
• Automatic snow clearing operation driven by ground and
aerial snow sensors
• Local manual start/stop
• Remote start/stop
• User adjustable preset run time (1 minute to 100 hours)
• Counts and displays total number of operating hours in
service
• Selectable modes
• Hot/cold air and Remote timeout on/off
User Friendly Interface Features
• User friendly door mounted operators and LED indicators
• Local run status and fault indication
• Remote run and fault indication
• Advanced diagnostics and troubleshooting displays
including fault history
Equipment Protection Features
• Overheat protection system including:
• Automatic fan shutdown delay
• High temperature limiting devices including
separate primary automatically reset
and backup manually reset bimetal disc
thermostats
• Motor protection including class 10 overload relay
• Coordinated overcurrent protection of all electrical components
by resettable circuit breakers and motor controllers
• User adjustable remote start delay prevents simultaneous
inrush of multiple units
• Staggered starting of motor and elements to minimize
peak current draw
• Self monitoring and automatic adjustment to minimize risk
of damage while maintaining a reduced but effective level
of snow clearing and sensing operation in the event of
some installation issues or equipment failures
D.2 Control System Operating Modes
1. Timed Local Run Mode: The Fastrax®FEB enters this mode
if the “MANUAL START” button is pushed for 3 seconds
or one of the snow sensors detects snow. The Fastrax®FEB
will run in this mode until the red “MANUAL START” button
is released and the snow sensors no longer detect snow, at
which point it will begin a timed run where it will continue to
run in this mode until the preset run time (2 hours by default)
has elapsed. The run timer will be reset if the “MANUAL
START” button is pushed or one of the snow sensors
detects snow again.
2. Timed Remote Run Mode: The Fastrax®FEB enters this mode
after the remote start/stop contacts are held closed while
“REMOTE TIMEOUT MODE” is on (default). The Fastrax®
FEB will begin a timed run and will continue to run until the
preset run time has elapsed or the remote start/stop contacts
are opened.
NOTE: Opening of the remote start/stop contacts will cancel
the timed run if the snow sensors are not currently
detecting snow.
3. Continuous Remote Run Mode: The Fastrax®FEB is in this
mode while the remote start/stop contacts are closed and
“REMOTE TIMEOUT MODE” is off. The Fastrax®FEB will
run in “CONTINUOUS REMOTE RUN MODE” until the
remote start/stop contacts are opened.
4. Cooldown Mode: If “COLD AIR MODE” is off, the Fastrax®
FEB enters “COOLDOWN MODE” after exiting the run
modes. The Fastrax®FEB will run in “COOLDOWN MODE”
where the duct heater is off and the blower continues to run
until the preset cooldown time (3 minutes) has elapsed or
the Fastrax®FEB is forced to re-enter a run mode.
5. Cold Air Mode: This mode increases energy efficiency
in exchange for reduced snow clearing capability. While
“COLD AIR MODE” is inactive (default), the Fastrax®FEB
discharges heated air while it is running. While “COLD AIR
MODE” is active, the Fastrax®FEB discharges cold air while
it is running.
The Fastrax®FEB may be forced to enter this mode
regardless of the setting of the “COLD AIR MODE” selector
switch if the primary high temperature limit trips repetitively
due to a serious issue with equipment or installation. In this
case, the Fastrax®FEB will remain in cold air mode until the
issue has been resolved and the unit has been manually
reset by pressing the “MANUAL START” button.
6. Remote Timeout Mode: This mode prevents the possibility
of the Fastrax®FEB running permanently if the remote start/
stop contacts are inadvertently left closed. While “REMOTE
TIMEOUT MODE” mode is active (default), closure of the
remote start/stop contacts will activate timed remote run
mode. While “REMOTE TIMEOUT MODE” is inactive,
closure of the remote start/stop contacts will activate
“CONTINUOUS REMOTE RUN MODE”.

16
Controls
D.3 User Interface
7. Blower On 8. Heat On 6. Control On 1. Manual Start
Hold 3 sec.
4. Cold Air Mode
Off/On
9. System Fault
10. High Temp Limit 2. Manual Stop
5. Remote Timeout OFF/ON
3. Disconnect Off/On
D.3.1 Panel Door Operators and Lights
1. Manual Start Button: Upon holding this button down for 3
seconds and releasing it, the Fastrax®FEB runs until the
preset run time has elapsed.
2. Manual Stop Button: Pushing this button will end any
currently active run mode, and force the Fastrax®FEB to
remain stopped for 5 seconds. This period may be used to
turn the disconnect switch to the “OFF” position and safely
disconnect the blower and duct heater element loads.
After this 5 second period the Fastrax®FEB may
restart if inputs such as the snow sensors or the
remote start signal are active.
WARNING
WARNING
3. Disconnect Switch: Turning the handle of this switch to
the “OFF” position will de-energize the entire Fastrax®FEB
including the control circuit. Before performing any work on
the electrical connections of the Fastrax®FEB, this switch
should be in the “OFF” position. The smart relay may be
rebooted by turning this switch to the “OFF” position and
then back to the “ON” position.
4. Cold Air Mode Selector Switch: In the “ON” position,
“COLD AIR MODE” is active. In the “OFF” position,
“COLD AIR MODE” is inactive (unless forced on by a
repetitive primary high temperature limit tripping event).
By default, this switch is in the “OFF” position.
5. Remote Timeout Mode Selector Switch: In the “ON”
position, “REMOTE TIMEOUT MODE” is active. In the
“OFF” position, “REMOTE TIMEOUT MODE” is inactive. By
default, this switch is in the “ON” position.
6. Control On Pilot Light: This white pilot light indicates the
control system is powered.
7. Blower On Pilot Light: This green pilot light indicates the
control system is attempting to run the blower.
8. Heat On Pilot Light: This green pilot light indicates the
control system is attempting to run the duct heater
elements.
9. System Fault Pilot Light: This pilot light indicates that one or
more of the system’s components are not working properly.
The system faults that can trigger this pilot light include:
9.1 Tripping of the primary high temperature limit
9.2 Past repetitive tripping event of the primary high
temperature limit (forced cold air mode)
9.3 Tripping of the backup high temperature limit
9.4 Tripping of the blower motor controller
9.5 Tripping of a snow sensor circuit breaker
9.6 Malfunction of a snow sensor
9.7 Malfunction of the smart relay
NOTE: The red “SYSTEM FAULT” pilot light is normally lit
immediately following power up during the booting
process of the smart relay.
10. High Temperature Limit Pilot Light: This red pilot light
indicates the backup high temperature limit thermostat has
tripped and needs to be manually reset.
Control Panel Interface

17
Controls
D.4 Remote Signalling
Remote Signalling Inputs
Remote Signal Terminal Block - Refer to Section C.
Wiring Schematics for Remote Signal Connections.
1. Remote Start/Stop Contacts: The Fastrax®FEB can be
started by closing TB2 terminals RSS-1 and RSS-2 using a
pair of remote dry contacts.
2. Remote Run Indication: The Fastrax®FEB indicates that it
is currently running by closing a pair of dry contacts, TB2
terminals A1 and A2, and by opening another pair of dry
contacts, TB2 terminals A1 and A3. Either of these pairs of
dry contacts can be monitored remotely.
3. Remote System Fault Indication: The Fastrax®FEB
indicates that it is experiencing a system fault by opening
a pair of dry contacts, TB2 terminals A4 and A5, and by
closing another pair of dry contacts, TB2 terminals A4 and
A6. Either of these pairs of dry contacts can be monitored
remotely. Any of the system faults that would trigger the
system fault pilot light would also trigger these contacts.
D.5 Smart Relay Operation
The EATON easy700 series smart relay is a rugged microprocessor
based programmable logic controller, which includes a myriad of
useful function blocks along with 12 inputs and 6 outputs that can
be used to achieve the same control functionality available with
traditional electromechanical relays and timers. There are many
advantages of the smart relay over traditional relay logic systems.
The system wiring using the smart relay is simpler and more
compact, which results in less risk of functionality issues caused
by wiring connections. The smart relay includes a built in display,
which shows diagnostic messages that are helpful in the event that
troubleshooting is required. If desired, the functionality of the smart
relay can be easily adjusted in the field using its display and buttons.
Finally, if desired, the smart relay can be reprogrammed to suit
application specific needs with little or no modification of wiring.
D.6 Smart Relay Display
1. Total Run Time: By default, while no run status, fault status
or fault history messages are active, the smart relay display
shows a status message similar to:
1.1 This message shows a count of the total number
of hours the Fastrax®FEB has been running in hot
air mode or cold air mode since the count was last
manually cleared.
1.2 If any run status, fault status or fault history messages
are active, the smart relay display will cycle through
them showing each message 5 seconds at a time.
D.6.1 Run Status Messages
1. Timed Run: While the Fastrax®FEB is running in timed local
or remote mode, the smart relay display shows a message
similar to:
1.1 The preset run time is shown in hours and minutes to
the right of the “SET” label.
1.2 The run timer’s actual elapsed time is shown in hours
and minutes to the right of the “ACT” label.
1.3 The timed run ends when the run timer’s elapsed run
time equals the preset run time.

18
Controls
2. Continuous Remote Run: While in continuous remote run
mode, the smart relay display shows a message similar to:
2.1 The total time that Fastrax®FEB has run in continuous
run mode is displayed. The value to the right of the
“DAY” label indicates the portion of the elapsed time
in days, while the value to the right of the “HR” label
indicates the remainder of the elapsed time in hours
and minutes. For instance, the message indicates that
the Fastrax®FEB has been running for 3 days, 8 hours,
and 10 minutes in continuous remote run mode.
3. Cool Down: While the Fastrax®FEB is running in cooldown
mode, the smart relay display shows a message similar to:
3.1 The preset cooldown time is shown in minutes and
seconds to the right of the “SET” label.
3.2 The run timer’s actual elapsed time is shown in minutes
and seconds to the right of the “ACT” label.
3.3 The cooldown ends when the cooldown timer’s
elapsed time equals 3 minutes.
D.6.2 Fault Status Messages
1. Primary High Temperature Limit Tripped: If the primary high
temperature limit thermostat has tripped, the smart relay
display shows:
1.1 This fault message indicates that the duct heater has
been disabled due to an over-temperature condition.
This condition may be a transient issue that happens
only in rare circumstances or a more serious issue
that happens regularly. If the primary high temperature
limit thermostat trips often enough, it will eventually
be forced into cold air mode and the snow clearing
performance of the Fastrax®FEB will be impaired.
Please see Section G. Troubleshooting for more
information.
2. Cold Air Mode Forced: If the primary high temperature limit
thermostat has tripped 10 times over the course of a day,
the smart relay display shows:
2.1 This fault message indicates that Fastrax®FEB has
been forced to run in “COLD AIR MODE” due to a
serious issue with the installation or the Fastrax®FEB
that caused the duct heater to repeatedly run at an
excessively high temperature. Potential causes for
this issue include a significant airflow restriction or a
malfunctioning blower. The snow clearing performance
of the Fastrax®FEB will continue to be impaired
until the issue is investigated and corrected and the
“MANUAL START” button is pressed.
NOTE: Do not simply reset this fault and walk away from the
unit without diagnosing and resolving this issue, as in
this case the fault will likely return.
3. Backup High Temperature Limit Tripped: If the backup high
temperature limit thermostat has tripped and needs to be
manually reset, the smart relay display shows:

19
Controls
3.1 This fault message may indicate an issue with the
installation or the Fastrax®FEB causing the duct
heater to run at an excessively high temperature,
which may result in damage to the equipment if left
unchecked. The duct heater elements will be disabled
and the snow clearing performance of the Fastrax®
FEB will continue to be impaired until the “HIGH
LIMIT RESET” button is pressed. The cause of
such an issue should be investigated and corrected.
“HIGH LIMIT RESET” Button
4. Motor Controller or Circuit Breaker Tripped: If the motor controller
has tripped, the smart relay display shows the message:
4.1 This fault message indicates an issue with the installation
or the Fastrax®FEB that causes the motor branch circuit
to draw an excessively high current, which may result in
damage to the equipment if left unchecked. If the blower
motor controller has tripped, the snow clearing operation
of the Fastrax®FEB will be disabled until the blower motor
controller is manually reset. Such an issue should be
investigated and corrected.
5. Snow Sensor Circuit Breaker Tripped: If either an installed
optional ground or aerial snow sensor circuit breaker has
tripped, the smart relay display shows:
5.1 This fault message indicates that one or both of the
snow sensors has been disabled for drawing excessively
high current and suggests that one or both of the snow
sensors has failed. The snow detection feature and
automatic snow clearing operation of the Fastrax®FEB
will continue to be impaired until the faulty sensor has
been replaced and the circuit breaker has been reset.
6. Snow Sensing Circuit Shorted: If the snow sensing circuit
of an installed optional aerial snow sensor or ground snow
sensor is shorted for a long period of time, the smart relay
display shows one of the following messages:
6.1 Each of these messages indicates that the snow sensor
it mentions is likely malfunctioning and has been disabled.
The snow detection feature and automatic snow clearing
operation of the Fastrax®FEB will continue to be impaired
until the issue has been resolved.
NOTE: Only the affected snow sensor(s) will be disabled. If
there is another connected snow sensor, it will continue
to be used by the Fastrax® FEB to sense snow.

20
Controls
D.6.1 Fault History Messages
1. Trip History: If the automatically reset primary high
temperature limit thermostat has tripped one or more times
since the trip history was last manually cleared, the smart
relay display shows a message similar to:
1.1 This particular message indicates the primary high
temperature limit has tripped three times since the trip
history was last manually cleared.
D.7 Smart Relay Operation
1. Manual Starting: Push and hold the “UP ARROW (^)” button
for 3 seconds to enter local timed run mode and set the
Fastrax®FEB to run until the preset run time has elapsed.
2. Showing Input/Output Status: Push and hold the “DOWN
ARROW (v)” button to hide any active messages and show
the smart relay input/output status, date/time and run status
on the smart relay display:
2.1 The top line indicates the currently active inputs. The
bottom line indicates the currently active outputs
and whether the program is running or stopped. This
particular message illustration indicates that currently
inputs #5, #7 and #8 and output #4 are active, it is 8:56
AM on Thursday and the program is running.
3. Clearing Total Run Time and Trip History: Push and hold the
Left Arrow (<) button for 5 seconds to reset the count of total
run time and number of high temperature limit trips stored in
the smart relay to zero.
4. Preset Run Time Adjustment: The preset run time is the
duration of the timed run as described in the “D.2 Control
System Operating Modes” section. The preset run time
can be set from 1 minute to 99 hours and 59 minutes. The
following example illustrates how one can change the preset
run time from 2 hours to 3 hours:
4.1 Push the “RIGHT ARROW (>)” button. The adjustment
menu appears.
4.2 Push the “ALT” button. A flashing solid cursor appears
over the left digit of the remote start delay field.
4.3 Press the “DOWN ARROW (v)” button. The flashing
solid cursor moves down to the left digit of the preset
run time field beside the “RUN” text.