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Thermal Products Inc is excited to introduce the new Indeeco "WET LOCATION" Ultra-Safe™ EXP explosion-proof unit heater is designed with both safety and versatility in mind.

Optional Wet Location Features:

Washable per IP55
IP55 Motor
Type 4 outdoor rated enclosure and optional features
Meets Rain Tight requirements of UL 1004-1

Unique ULTRA-SAFE™ EXP features include:

Industry’s Lowest Ignition Temperature Code Rating: T3C, 320°F (160°C)

Dual Overtemperature Protection: With both automatic and manual reset overtemperature cutouts for additional safety.

Nontoxic Propylene Glycol Heat Transfer Fluid

Low 70 PSIG Relief Valve Setting: This assures that in an emergency, the initial escaping vapor temperature remains below the 320°F (160°C) ignition temperature.

Corrosion Resistant Options: INDEECO offers three constructions suitable for most applications.

Standard construction for use in dry non-corrosive areas includes: welded steel heat exchanger; powder-coated cabinet.

A 316 stainless steel construction suitable for Waste Water Treatment Plants includes: 316 stainless steel heat exchanger, headers and tubes with aluminum fins; stainless steel cabinet; corrosion resistant hardware.

Third construction is suitable for use in Chemical Plants where chlorides are present and includes: Heresite® coated heat exchanger, cabinet, fan blade; corrosion resistant hardware.

Standard Construction Features

Heat Exchanger
Efficient liquid-to-air design utilizes an all welded steel headers and finned tube construction with spiral wound aluminum fins. Industrial grade INDEECO heating elements are immersed in a nontoxic, inhibited, propylene glycol heat transfer fluid that provides freeze protection down to -49°F (-45°C). The heat exchanger is hydrostatically tested at 350 psig. A pressure relief valve provides excess pressure protection and is set at 70 psig.

Fan Motor Assembly
Consists of an explosion-proof motor fitted with an aluminum fan blade. The motor has double- shielded, permanently lubricated ball bearings and automatic reset line breaking thermal overload protection. Motors furnished on standard units operate at line voltage and are prewired to the control enclosure so separate field wiring to the motor is not required. The standard motor is rated for Class I, Groups C and D, Class II, Groups F and G. The minimum operating temperature is -14°F (-25°C) and the minimum storage temperature is -49°F (-45°C). Download the product data sheet for optional motor ratings.

Cabinet/Louvers
Industrial grade, corrosion resistant construction fabricated from beige powder coated 14-gauge galvanized steel. The adjustable louvers have minimum opening safety stops.

Controls
Factory mounted on the unit heater. Standard built-in controls include automatic and manual reset overtemperature cutouts, controlling magnetic contactor, and 24-volt control circuit transformer housed in a NEMA 7, 9 cast aluminum enclosure.

Factory Built-in Options

316 Stainless Steel Corrosion-Resistant Construction (Waste Water Treatment Plants)
316 Stainless steel heat exchanger with aluminum fins, 316 stainless steel cabinet; aluminum fan blade; cast aluminum NEMA 4, 7, 9 control enclosure; corrosion-resistant hardware; corrosion-resistant protective coated motor, which has passed the ASTM B117 salt-spray test.

Dirty Duty Corrosion-Resistant Construction (Chemical Plants)
Heresite® coated heat exchanger, cabinet and fan blade; cast aluminum NEMA 4, 7, 9 control enclosure; corrosion-resistant hardware; corrosion-resistant protective coated motor which has passed the ASTM B117 salt-spray test.

Disconnect Switch
Factory installed on the unit heater above the control enclosure. This is an inexpensive and positive way to meet NEC/CEC requirements for a disconnecting means within sight of the heater.

Group E (Metal Dust) Construction
Class II, Group E (Metal Dust) Construction Temperature Code T3C, 320°F (160°C)

"Warning" Pilot Light
Indicates when the thermal cutouts have tripped and the unit heater needs servicing.

"Heater On" Pilot Light
Indicates when the electric heating elements are energized.

Manual Reset Thermal Cutout with Backup Contactor
A pilot duty manual reset thermal cutout with a backup contactor is provided for independent secondary overtemperature protection. This option cannot be provided if option Code S or V are also specified.

Auto/Fan Selector Switch
A two-position switch wired to the control circuit for auto (automatic heat) and fan only control. This selector switch cannot be provided if option Code M or V are also specified.

Adjustable Thermostat
Factory installed and prewired to the control enclosure. Thermostat is adjustable from 50° to 90°F (10° to 32°C) range.

120 Volt Control Circuit
Can be provided when required for special external thermostat circuit. This option cannot be provided if option Code S or M are also specified. Nor can both K and L be specified.

Accessories

Mounting Kit
These are available for ceiling, wall and pole mounting.

Remote Thermostat
A remote wall mounted thermostat is available.

CLASSIFICATIONS

Class I, Divisions 1 and 2, Groups C and D
Class II, Divisions 1 and 2, Groups E, F and G
Class I, Zones 1 and 2, Group IIB
Temperature Code T3C, 320°F (160°C)
APPROVALS

CSA - USA & CAN FM - USA & CAN

APPLICATIONS

Aircraft Hangars/Service Areas
Chemical Storage/Handling Areas
Coal Preparation Plants
Compressor Stations
Grain Elevators
Oil Refineries and Rigs
Paint Storage Areas
Petrochemical Plants
Sewage Pump Stations/ Treatment Plants
Spray Booths

UHIR Series Unit Heater

The UHIR unit heater is available in 50 standard models with ratings up to 50 KW at voltages of 208, 240, 277, and 480 single or three-phase. They are available with a wide variety of factory built-in or field-installed options.

Temperature Control: Single-stage or two-stage control with built-in or remote-mounted thermostats are available on all heaters.

Control Options: Available as factory built-in or field-installed to meet job specifications.

Custom KW's: Custom KW's are available up to 50 KW.

Discharge Direction: The UHIR heater can be mounted for horizontal or vertical discharge using an optional universal wall/ceiling mounting bracket or with field-furnished threaded rods for ceiling mounting.

Color Options: The standard color is camel. Six optional colors are available: grey, yellow, red, white, blue or textured beige. Heaters may also be supplied with unpainted corrosion resistant galvanized steel.

IUH Colors

Standard Construction Features

Heating Elements
Industrial grade, 0.475" diameter steel sheath with brazed copper plated steel fins and epoxy sealed ends. Draw-thru airflow design pulls air across the heating elements to ensure cool element operation and even air distribution resulting in long element life.

Housing
Heating elements and motor are enclosed in a heavy gauge galvanized steel cabinet with a durable camel polyester powder coat finish.

Outlet Grille
Individually adjustable louvers are provided to direct airflow. A protective outlet fan guard is provided to prevent insertion of foreign objects.

Fan Motor
Permanently lubricated and thermally protected motor.

Built-in Controls
All units include an automatic reset thermal cutout that will de-energize the heater if an overtemperature condition occurs. A manual reset thermal cutout, in addition to an automatic reset thermal cutout, is standard on heaters 10 KW and above. A fan relay is provided to allow the elements to heat up before fan startup and purges the heater of residual heat after shutdown. A 24-volt transformer and disconnecting contactor are provided on most heaters. Single-phase heaters rated at 5 KW or less have line voltage controls; 24-volt control and contactor are available. Power fusing is standard on all heaters rated over 48 amps.

Mounting
Universal horizontal or vertical discharge. Optional diffusers are available for vertical discharge. An Anemostat diffuser can be used to provide draft-free air movement at lower mounting heights. For higher mounting heights, radial diffuser with adjustable fins can be used to increase floor coverage or adjusted for a vertical down blast of air.

Factory Built-in Options

• Custom KW – Contact Thermal Products Inc
• Power disconnect switch
• Fusing under 48 Amps, not available on heaters 3 to 10 KW
• Manual Reset Cutout (In addition to automatic cutout) on heaters up to 10KW
• “Heater On” Pilot Light
• Built-in 24V transformer and contactor for 3 to 5 KW, single phase heaters.
• 120V Transformer to replace 24V Transformer
• Summer Fan Switch
• Summer Fan Switch: Remote Pilot Duty
• Built-in Thermostat: 1- or 2-Stage
• Anemostat (Cone) Diffuser
• Radial Diffuser
• 2-Stage Control
• Field-Installed Options
• Shipped loose for field installation into heater.
• Anemostat (Cone) Diffuser
• Radial Diffuser
• Horizontal Dust Shield
• Disconnect Switch
• Built-in Thermostat: 1- or 2-Stage
• “Heater On” Pilot Light
• Summer Fan Switch: Built-in or Remote

Contact Thermal Products Inc Today To Discuss Your Application!

Ultra-Safe™ EXP Explosion-proof Unit Heater

Thermal Products is happy to spotlight the Indeeco Ultra-Safe™ EXP explosion-proof unit heater is designed with both safety and versatility in mind. Unique ULTRA-SAFE™ EXP features include:

Industry’s Lowest Ignition Temperature Code Rating: T3C, 320°F (160°C)

Dual Overtemperature Protection: With both automatic and manual reset overtemperature cutouts for additional safety.

Nontoxic Propylene Glycol Heat Transfer Fluid

Low 70 PSIG Relief Valve Setting: This assures that in an emergency, the initial escaping vapor temperature remains below the 320°F (160°C) ignition temperature.

Corrosion Resistant Options: INDEECO offers three constructions suitable for most applications.

Standard construction for use in dry non-corrosive areas includes: welded steel heat exchanger; powder-coated cabinet.

A 316 stainless steel construction suitable for Waste Water Treatment Plants includes: 316 stainless steel heat exchanger, headers and tubes with aluminum fins; stainless steel cabinet; corrosion resistant hardware.

Third construction is suitable for use in Chemical Plants where chlorides are present and includes: Heresite® coated heat exchanger, cabinet, fan blade; corrosion resistant hardware.

Standard Construction Features

Heat Exchanger
Efficient liquid-to-air design utilizes an all welded steel headers and finned tube construction with spiral wound aluminum fins. Industrial grade INDEECO heating elements are immersed in a nontoxic, inhibited, propylene glycol heat transfer fluid that provides freeze protection down to -49°F (-45°C). The heat exchanger is hydrostatically tested at 350 psig. A pressure relief valve provides excess pressure protection and is set at 70 psig.

Fan Motor Assembly
Consists of an explosion-proof motor fitted with an aluminum fan blade. The motor has double- shielded, permanently lubricated ball bearings and automatic reset line breaking thermal overload protection. Motors furnished on standard units operate at line voltage and are prewired to the control enclosure so separate field wiring to the motor is not required. The standard motor is rated for Class I, Groups C and D, Class II, Groups F and G. The minimum operating temperature is -14°F (-25°C) and the minimum storage temperature is -49°F (-45°C). Download the product data sheet for optional motor ratings.

Cabinet/Louvers
Industrial grade, corrosion resistant construction fabricated from beige powder coated 14-gauge galvanized steel. The adjustable louvers have minimum opening safety stops.

Controls
Factory mounted on the unit heater. Standard built-in controls include automatic and manual reset overtemperature cutouts, controlling magnetic contactor, and 24-volt control circuit transformer housed in a NEMA 7, 9 cast aluminum enclosure.

Factory Built-in Options

316 Stainless Steel Corrosion-Resistant Construction (Waste Water Treatment Plants)
316 Stainless steel heat exchanger with aluminum fins, 316 stainless steel cabinet; aluminum fan blade; cast aluminum NEMA 4, 7, 9 control enclosure; corrosion-resistant hardware; corrosion-resistant protective coated motor, which has passed the ASTM B117 salt-spray test.

Dirty Duty Corrosion-Resistant Construction (Chemical Plants)
Heresite® coated heat exchanger, cabinet and fan blade; cast aluminum NEMA 4, 7, 9 control enclosure; corrosion-resistant hardware; corrosion-resistant protective coated motor which has passed the ASTM B117 salt-spray test.

Disconnect Switch
Factory installed on the unit heater above the control enclosure. This is an inexpensive and positive way to meet NEC/CEC requirements for a disconnecting means within sight of the heater.

Group E (Metal Dust) Construction
Class II, Group E (Metal Dust) Construction Temperature Code T3C, 320°F (160°C)

"Warning" Pilot Light
Indicates when the thermal cutouts have tripped and the unit heater needs servicing.

"Heater On" Pilot Light
Indicates when the electric heating elements are energized.

Manual Reset Thermal Cutout with Backup Contactor
A pilot duty manual reset thermal cutout with a backup contactor is provided for independent secondary overtemperature protection. This option cannot be provided if option Code S or V are also specified.

Auto/Fan Selector Switch
A two-position switch wired to the control circuit for auto (automatic heat) and fan only control. This selector switch cannot be provided if option Code M or V are also specified.

Adjustable Thermostat
Factory installed and prewired to the control enclosure. Thermostat is adjustable from 50° to 90°F (10° to 32°C) range.

120 Volt Control Circuit
Can be provided when required for special external thermostat circuit. This option cannot be provided if option Code S or M are also specified. Nor can both K and L be specified.

Accessories

Mounting Kit
These are available for ceiling, wall and pole mounting.

Remote Thermostat
A remote wall mounted thermostat is available.

CLASSIFICATIONS

Class I, Divisions 1 and 2, Groups C and D
Class II, Divisions 1 and 2, Groups E, F and G
Class I, Zones 1 and 2, Group IIB
Temperature Code T3C, 320°F (160°C)
APPROVALS

CSA - USA & CAN FM - USA & CAN


APPLICATIONS

Aircraft Hangars/Service Areas
Chemical Storage/Handling Areas
Coal Preparation Plants
Compressor Stations
Grain Elevators
Oil Refineries and Rigs
Paint Storage Areas
Petrochemical Plants
Sewage Pump Stations/ Treatment Plants
Spray Booths

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