CCI Thermal Technologies PXFT - Natural Convection Heater - Manuel

ISO 9001
MI184 REV. 8.02
MI182 REV.8 Page 1 of 2
CCI Thermal Technologies Inc. 2721 Plymouth Drive, Oakville, ON L6H 5R5 Tel. (905) 829-4422 Fax (905) 829-4430
www.ccithermal.com
ISO 9001:2000
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS FOR
SERIES OK3 – INFRARED RADIANT HEATERS
FIRE/EXPLOSION HAZARD WARNING - During operation, take precautions to ensure that
combustible materials are always kept at a safe distance from the radiant energy. This heater is
not intended for use in hazardous areas where flammable vapours, gases or liquids or other
combustibles are present. Remember that objects placed under an infrared heater can take a while
to reach stabilized temperatures. If you are unsure of the suitability of the heater for the intended
application, check with the factory for recommendations. Failure to comply can result in personal
injury and/or property damage.
DESCRIPTION
1.0 The OK3 radiant heaters are suitable for comfort heating
use in non-hazardous areas protected from rain, snow or splashing,
where heating element temperatures in excess of 750°C(1382°F)
will not present the risk of fire or explosion. The heater does not
present a safety hazard when it is installed, operated and maintained
in accordance with these instructions.
2.0 The OK3 heater has two U-shaped metal sheath heating
elements factory interconnected in series or parallel depending on
voltage. Never change heaters which have been factory series
connected to a parallel connection.
3.0 Minimum space clearances from combustibles, when
heaters are horizontally mounted and installed, as listed in Table 1
following.
Table 1
Min. Spacing
From nearest wall 600 mm (24”)
From the ceiling 300 mm (12”)
INSTALLATION
The system designer is responsible for
the safety of this equipment and
adequate back-up controls and safety
devices must be installed. Failure to
comply could result in personal injury
and/or property damage.
Heaters must be wired by qualified
personnel in compliance with local
codes.
5.0 Verify that the nameplate voltage and wattage are suitable
for use on the available electrical power supply. Do not connect
the heater to an electrical supply voltage other than shown on the
product label.
Insulation contamination or moisture
accumulation can cause fault to the
element sheath generating arcing and
releasing molten metal. Install proper
ground fault protection to prevent
personal injury and/or property
damage.
6.0 The connection box volume is 3100 cm³(190 in³).
7.0 Supply conductors to the heater must be suitable for
110°C(230°C). The ground wire from the supply shall be connected
to the grounding connection located in the connection box.
8.0 The connection box has eight dual knockouts, ½" or ¾"
and two dual knockouts ¾" or 1". The standard Type 1 enclosure
is suitable for dry, indoor locations only in non-corrosive
environments.
9.0 For short circuit protection, heaters must be installed with
proper fast acting fuses or breakers as close as possible to the
ratings indicated on the nameplates, in compliance with the local
electrical codes.
4.0 To facilitate mounting, the heater has four ¼"-20 mounting
holes located at each top corner of the housing. Either chain
mounting (use eye bolts) or bolting to a non-combustible sliding
support (slotted holes) is adequate provided that the spacing
instructions as given in 3.0 are followed. Chain mounting is preferred
since rigidly mounted heaters are susceptible to warping.
38 cm
[15”]
60 cm
[24”]
30
cm
[12”
]
FIG. 1 – MOUNTING CLEARANCES
Operating surface temperature of the heater
is sufficient to cause burns upon contact with
bare skin. Before servicing, allow sufficient time
for the heater to cool.
1.1 The PXF heater is designed to maintain a suitable temperature
inside a control enclosure, pump house or a similar space. The
PXF is not designed for use in wooden cabinets or enclosures.
The heavy duty industrial grade design, with its high surface area
aluminum emitter, eliminates the need for a fan while providing low
radiation and high convection heating to the enclosure or space.
1.2 Type PXF heaters are available with or without a built-in
thermostat. Units with thermostat have a “T” following the PXF
catalog designation.
1.3 The PXF has a general purpose terminal enclosure which is
not suitable for wet or hazardous locations.
1.4 Use the mounting bracket supplied to ensure that the minimum
spacing between the heater and adjacent walls or floor is
maintained. If mounted vertically, the terminal box must be located
at the bottom.
1.5 To attach the mounting bracket, slide the bracket between the
two rear fins. Tighten the mounting screw such that it squeezes
the head of the mounting screw tight against the heatsink fin,
preventing movement.
1.6 In control enclosures, the spacing between the heater and
temperature sensitive components should be 4” minimum around
all sides.
INSTALLATION
1.7 Heaters without a factory installed temperature control
thermostat that are to be installed in UL Listed Industrial Control
Panels, must be used in conjunction with a UL Recognized
thermostat suitable for use in UL508A Industrial Control Panels,
and installed per the requirements of UL 508A.
2.1 DISCONNECT POWER BEFORE INSTALLATION OR
SERVICING.
2.2 Heaters must be wired by qualified personnel to electrical code
requirements.
2.3 Check supply voltage for compliance with heater nameplate
voltage.
2.4 A 7/8” diameter hole in the terminal box is provided to allow
wiring through a ½” conduit fitting. Use supply wires suitable for
90°C.
2.5 When temperature regulation is required, the PXFT (with built-
in thermostat) can be wired to control itself plus one or more ba
ensure the maximum current rating of the thermostat, 25 Amps, is
not exceeded.
2.6 The thermostat is a single pole device and cannot be used for
disconnecting means.
WIRING
INSTALLATION, WIRING, AND OPERATING INSTRUCTIONS
TYPE PXF & PXFT CONTROL PANEL AND PUMP HOUSE HEATER
MI184 REV. 8.01
INSTALLATION, WIRING, AND OPERATING INSTRUCTIONS
TYPE PXF & PXFT CONTROL PANEL AND PUMP HOUSE HEATER
INSTALLATION
1.1 The PXF heater is designed to maintain a suitable
temperature inside a control enclosure, pump house or a
similar space. The PXF is not designed for use in wooden
cabinets or enclosures. The heavy duty industrial grade
design, with its high surface area aluminum emitter,
eliminates the need for a fan while providing low radiation
and high convection heating to the enclosure or space.
1.2 Type PXF heaters are available with or without a built-in
thermostat. Units with thermostat have a "T" following the PXF
catalog designation.
1.3 The PXF has a general purpose terminal enclosure which
is not suitable for wet or hazardous locations.
1.4 Use the mounting bracket supplied to ensure that the
minimum spacing between the heater and adjacent walls or
floor is maintained. If mounted vertically, the terminal box must
be located at the bottom.
1.5 To attach the mounting bracket, slide the bracket between
the two rear fins. Tighten the mounting screw such that it
squeezes the head of the mounting screw tight against the
heatsink fin, preventing movement.
1.6 In control enclosures, the spacing between the heater
and temperature sensitive components should be 4” minimum
around all sides.
Operating surface temperature of the heater
is sufficient to cause burns upon contact with
bare skin. Before servicing, allow sufficient
time for the heater to cool.
WIRING
2.1 DISCONNECT POWER BEFORE INSTALLATION OR
SERVICING.
2.2 Heaters must be wired by qualified personnel to electrical
code requirements.
2.3 Check supply voltage for compliance with heater
nameplate voltage.
2.4 A 7/8" diameter hole in the terminal box is provided to allow
wiring through a ½" conduit fitting.
Use supply wires suitable for 90°C
2.5 When temperature regulation is required, the PXFT (with
built- in thermostat) can be wired to control itself plus one or
more basic PXF heaters. In multiple heater installations
ensure the maximum current rating of the thermostat, 25
Amps, is not exceeded.
2.6 The thermostat is a single pole device and cannot be
used for disconnecting means.
OPERATION & MAINTENANCE
3.1 Apply power to the circuit.
3.2 Set the thermostat to the desired space temperature.
3.3 Allow suitable time for the thermostat to cycle and the
space temperature to stabilize.
3.4 Due to system variances you may have to readjust the
thermostat and repeat 3.3 to achieve the desired steady state
temperature.
3.5 Periodically check mounting hardware and electrical
connectors for tightness.
3.6 Keep heater clean to maintain efficient heat transfer.
Figure 1: Mounting Detail
1.7 Heaters without a factory installed temperature control
thermostat that are to be installed in UL Listed Industrial
Control Panels, must be used in conjunction with a UL
Recognized thermostat suitable for use in UL508A Industrial
Control Panels, and installed per the requirements of UL 508A.
CCI Thermal Technologies Inc. 2721 Plymouth Drive, Oakville, ON L6H 5R5 Tel. (905) 829-4422 Fax (905) 829-4430
www.ccithermal.com
®
ISO 9001
CAUTION
FLOOR
FLOOR
3.1 Apply power to the circuit.
3.2 Set the thermostat to the desired space temperature.
3.3 Allow suitable time for the thermostat to cycle and the space
temperature to stabilize.
3.4 Due to system variances you may have to readjust the
thermostat and repeat 3.3 to achieve the desired steady state
temperature.
3.5 Periodically check mounting hardware and electrical connectors
for tightness.
3.6 Keep heater clean to maintain efficient heat transfer.
OPERATION & MAINTENANCE
®