Ouellet OPX - Manual

180, 3e avenue – PO Box 188, L'Islet, Qc, G0R 2C0
Tél. :(418)247-3947 ou 1-800-463-7043,
FAX: 418-247-7801
I. GENERAL
The Explosion-proof Heater is CSA and FM approved
for use in industrial areas that are classified as Class
I, Division 1, Groups. B, C & D, and Class II, Division
1, Groups E, F & G. The heaters are also available in
corrosion resistant construction, suitable for NEMA 3,
and corrosive environments. The specific heater
ratings are shown on the data plate. The heaters are
intended for horizontal wall or floor mounting in
industrial applications only. Surface temperatures
of the cabinet may exceed those normally expected
with residential equipment, so the heater should
never be installed in a residential or similar
environment where drapes or upholstery may come
into contact with the heater or where unintended
personnel contact may occur.
The maximum operating temperature ignition code is
stamped on the data plate. NEVER operate the heater
in an atmosphere with an ignition code temperature
lower than this rating. The heaters are designed for
convection airflow in a maximum ambient
temperature of 40°C, 104°F. NEVER operate the
heater in a vertical mounting orientation or where the
ambient temperature may exceed 40°C, 104°F.
For details on the particular hazardous environments
having the potential for explosion, refer to Section 18
of the Canadian Electrical Code, Part I.
A. The Explosion-proof Heater is intended to be
permanently mounted to a wall by mounting brackets
supplied with the heater or floor mounted with the
optional floor mounting brackets. A high temperature
limit control is built into the heater. All heaters
connected to a 3 phase voltage source and all single
phase heaters above 277 Volts or 25 amps will require
a control contactor, operated by the limit control, to
control the heater. Certain optional controls such as
a thermostat and/or contactor and control voltage
transformer are available and when supplied with the
heater they are supplied inside their own rated
enclosures mounted on the right side of the cabinet or
supplied as remotely mounted items. When mounted
on the cabinet the enclosures are connected to the
heater terminal box using rigid metal conduit and the
controls are factory wired. Remotely located controls,
outside the hazardous area, may be in a standard
enclosure, area permitting. All wiring connections to
the heater must be made using rigid metal conduit,
and an explosion-proof conduit seal must be located
immediately adjacent to the heater. All wiring must
comply with all national and local codes for equipment in
hazardous locations.
The heaters are specifically designed for each application
and should be properly installed, operated and
maintained for optimum service life.
B. Disassembly of the unit for installation is not required
or authorized. When installing:
1. Observe all heater nameplate ratings, warnings
and notes.
2. Follow the wiring diagram supplied with the heater
in making all electrical connections.
3. Keep all electrical connections tight.
4. Keep the heater terminal enclosure and heating
elements clean.
5. Never cover the heater while in operation.
6. Carefully read and comply with all warnings and
cautions.
II. INSTALLATION
A. Site Selection.
1.) The Explosion-proof Heater is designed for use
only while permanently mounted in a horizontal
orientation at a minimum of 6" (152mm) above the
floor.
2.) The site must allow sufficient free space around
the heater for safe and easy installation and
maintenance access. Workspace for heater
maintenance should be at least 3 feet (914mm) all
around the front of the heater cabinet and
terminal box.
3.) Airflow through the heater should not be restricted
or blocked in any manner.
4.) The site must have adequate means to support the
weight of the heater, and provide physical
protection to the heater.
=WARNING=
Ouellet strongly recommends this heater be installed by qualified
personnel familiar with the Canadian Electrical Code requirements for
hazardous locations as well as any local codes. It is the responsibility
of the installer to verify the safety and suitability of the installation.
=WARNING=
The heater must be mounted horizontally.
=WARNING=
Disassembly of the unit, for installation, is not required or authorized.
=WARNING=
Do not cover the heater or obstruct the free flow of air into or out of the
heater.
INSTALLATION, OPERATING AND
MAINTENANCE INSTRUCTIONS FOR
EXPLOSION-PROOF
HEATER "SERIES OPX"