Ruffneck FX4 Series, Installation, Operation & Maintenance Instructions Manual

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WARNING
Read and adhere to the following. Failure to do so may result in severe or fatal injury.
1. Read and follow all instructions in this manual.
2. Heater is to be used only in atmospheres having an
ignition temperature higher than the heater’s maximum
rated operating temperature as shown on the heater data
plate. Refer to applicable electrical codes for additional
information.
3. Heater to be used only in the hazardous locations
indicated on the heater’s data plate.
4. Heater is for dry indoor use only. Do not immerse in
water. Do not store or use in areas exposed to rain or snow.
5. Heater is to be connected and serviced only by a qualified
electrician experienced with hazardous location equipment.
6. Installation and wiring of the heater must adhere to all
applicable codes.
7. Disconnect heater from power supply at integral
disconnect or fuse box before opening enclosures or
servicing heater. Lock the switch in the “OFF” (open)
position and/or tag the switch to prevent unexpected
power application.
8. This heater is equipped with a single bimetal
overtemperature 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.
9. Venting pressure of the pressure relief valve is factory set.
Do not tamper with lock nut.
10. Do not tamper or remove warning label indicator on the PRV
(figure 1).
11. Operate the heater only while it is permanently mounted in
an upright position. Refer to the “Installation - Mechanical”
section for details.
12. Heater must be kept clean. When operating in a dirty
environment, regularly clean the finned tubes, fan, and fan
guard. Follow the recommended maintenance procedures.
Refer to the “Heater Maintenance Checklist” section for
details.
13. The heater core is vacuum charged and contains propylene
glycol. If any fluid leakage occurs from the heater,
disconnect it from the power supply and have the core
replaced with a factory supplied core. Refer to the
“Repair and Replacement” section for details.
14. Do not operate the heater with any of the louvers fully closed
or overriding their stops.
15. Do not operate the heater in atmospheres corrosive to steel
or aluminum.
16. Do not operate heater in ambient temperatures above 40°C
(104°F).
17. Use factory approved replacement parts only.
18. See applicable electrical codes for seal requirements in
field installed conduits. Factory installed conduits require no
further sealing.
19. Crackling or pinging noises within the heater core during
start up may occur. This is normal.
20. Air discharge near the bottom of the heater may be warmer
than the top. This is normal.
21. If there are any questions or concerns regarding the heater,
contact the factory. Refer to the last page of this manual for
details.
I M P O R T A N T N O T I C E S
FIGURE 1
PRV PRV LOCK NUT
PRESSURE RELIEF
VALVE (PRV) LABEL
INDICATOR
□
Check the tightness of all hardware. All nuts and bolts, including mounting hardware, must be tight.
□
Turn heater on for a minimum of five minutes. Check for warm air exiting heater through louvers. Crackling
or pinging noises within heater during start-up are normal.
ANNUAL
(Continued)
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