Fastrax Hellfire 900, Installation, Operation & Maintenance Instructions Manual

Page: 29 / 56

29 29
entrance panel and main disconnect. Observe primary surge
protector manufacturer’s instructions for installation and circuit
breaker protection (if required).
• Grounding of the switch heater 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.
G.8 Power Connections
1. Remove control cabinet lid and electrical sub component
cover plate.
2. Remove knockout plug. For conduit larger than ½”, punch
an appropriate size hole.
3. Terminate power cables to terminal block and ground wire
to grounding stud.
Ins
ta
lla
tio
n
Punch appropriate size
hole for power conduit
Terminal
Ground
4. Three Phase Systems Only
CAUTION
CAUTION. For three phase systems only - verify
correct fan rotation.
4.1 Three phase systems only – Place selector switch in
OFF position.
4.2 Turn service power on and close the motor breaker.
Open the combustion chamber access panel.
4.3 Note the fan rotation arrow.
WARNING
WARNING. Risk of cutting fingers or hand. Keep hands
clear of fan.
4.4 Manually close the motor contactor momentarily,
enough to spin the motor. Verify the correct rotation.
If the rotation needs to be reversed, open the
service breaker and interchange two of the supply
phase wires at the heaters power terminal block.