CCI Thermal Technologies Inc. 2721 Plymouth Drive, Oakville, ON L6H 5R5 Tel. (905) 829-4422 Fax (905) 829-4430
www.ccithermal.com
MI291 REV.3 Page 1 of 4
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS FOR
TYPE RXDF – EXPLOSION PROOF DUCT HEATER
1.0
SCOPE
This manual details the installation, operation, and maintenance
instructions for type RXDF explosion-proof duct heaters.
Your RXDF explosion-proof duct heater has been CSA C/US
Certified to meet the requirements for hazardous location equipment
for use in Canada and the United States. When properly maintained
and serviced, you can expect years of trouble free operation.
Carefully read and follow all instructions outlined in this manual to
ensure proper installation and safe operation of your heater.
2.0
GENERAL INFORMATION
2.1
DESCRIPTION
Type RXDF explosion-proof duct heaters are designed for heating
air or gases that contain potentially explosive substances. RXDF
heaters feature the unique approach to explosion-proof electric
heater design, which embodies safety and reliability.
The RXDF is a factory pre-wired explosion-proof duct heater.
Standard models are available in three duct sizes, with either a
single or double bank of heating modules. RXDF heaters are
available as standard units with T3B, T3A, or T2D hazardous area
temperature codes.
2.2
APPLICATION
The RXDF is designed specifically for heating industrial spaces
where potentially explosive substances are or may be present.
Typical hazardous location environments include:
•
Water and sewage treatment plants
•
Oil refineries
•
Pulp and paper mills
•
Petrochemical plants
•
Grain elevators
•
Paint storage booths
•
Cement plants
2.3
CONSTRUCTION
The RXDF explosion-proof duct heater features heavy-walled
carbon steel finned tubular heating elements with electroless nickel
plated finish to provide safe, efficient, low temperature heat transfer.
Standard units have a painted carbon steel duct section with
mounting holes provided for attachment to the duct section.
RXDF heaters feature the unique patented x-Max® copper-free
aluminum extruded terminal housing. A track-and-trolley system
and threaded covers on each end allow easy access to wiring
terminal connections.
Units are suitable for mounting in a horizontal duct section only.
2.4
STANDARD PRODUCT FEATURES
•
T2D, T3A, or T3B temperature code
•
CSA C/US Certified for use in hazardous areas. T2D units
Certified for use in Class I, Division 1 & 2, Group C & D
hazardous areas. T3A units Certified for use in Class I,
Division 1 & 2, Group C & D; Class II, Division 1 & 2, Group
E & F hazardous areas. T3B units Certified for use in Class
I, Division 1 & 2, Group C & D; Class II, Division 1 & 2,
Group E, F, & G hazardous areas.
•
Painted steel duct section
•
Differential pressure switch (supplied loose)
•
Factory installed high limit sensing thermocouple(s)
2.5
OPTIONAL PRODUCT FEATURES
•
Transition sections
•
Stainless steel duct section
•
Special temperature code
•
Outlet air thermostat
•
Outlet air thermocouple
3.0
SPECIAL NOTICES
The following special notices highlight important information in the
installation and maintenance sections. Each serves a special
purpose, and is displayed in the format shown:
This symbol indicates a potentially hazardous
situation, which, if not avoided, can result in
personal injury or damage to the equipment.
This symbol indicates a potentially hazardous
situation, which, if not avoided, may be a
shock hazard.
This symbol indicates an imminently
hazardous situation, which, if not avoided,
could result in death or serious injury.
4.0
PRE-INSTALLATION
4.1
Inspect the heater for possible damage due to shipping
and handling. Claims for shipping damages shall be placed with
the carrier.
4.2
Check the heater nameplates to ensure that the heater area
classification and temperature code are suitable for the hazardous
area classification.