Open Coil Heaters

Thermolec Open Coil heaters are designed for use in all forced air commercial and industrial HVAC systems. Their applications vary from a partial or auxiliary nature to being the principal heat source...

AcuSteam Pro

Commercial Grade Steam Humidifier Acu-Steam Pro humidifiers produces humidity from steam dispersed directly into the air usingelectric elements immersed in water. By using resistive elements a wide r...

Application & Technical Notes

Plenum Heater

The Latest in Technology for Conversions to Electricity or DUAL-ENERGY The Thermolec Plenum Heaters are the result of several years of research and development. Their components have been carefully s...

AcuSteam Steam Humidifier

Acu-Steam Steam Humidifiers are another quality product by Thermolec, an industry leader in comfort heating products. Its compact size and standard features make it the easiest to install, operate and...

Boards Compatibility Chart

A chart showing the different boards we offer along with some key details for each one (input, compatibility, etc.)

Split Steam

Steam Humidifier for ductless locations Thermolec’s Acu-Steam humidifier line has a new companion. To be able to provide the power of steam for houses and condos without duct work, we developed the S...

Thermo-X-Air

Mini Fresh Air Make-up Today's airtight homes and offices beg for fresh air. When we trap the heat, excess humidity and indoor pollutants such as cleaning products, smoking and pets, will negatively ...

Mini boiler

High Performance, Compact Design The Thermolec TMB electric boiler is our newest and most affordable model. Without compromising quality, Thermolec has engineered the TMB with quality components and ...

Tubular Element Heaters

Thermolec manufactures tubular element heaters for applications which involve personnel safety or critical conditions in the duct such as high humidity level, combustible dust or corrosive atmosphere...

Thermo-Zone

Zone Heater The THERMO-ZONE heater provides accurate temperature control in every room. Equipped with the most advanced modulating controller and air sensor, the THERMO-ZONE heater will operate with ...

Thermo-Air

Fresh Air Heater Today's airtight homes and offices beg for fresh air. When we trap the heat, excess humidity and indoor pollutants such as cleaning products, smoking and pets, will negatively affec...

Mini Make Up Air

Today's airtight homes and offices beg for fresh air. When we trap the heat, excess humidity and indoor pollutants such as cleaning products, smoking and pets, will negatively affect the quality of th...

NER Fanless Make Up Air

Make-up Air units up to 2,500 cfm with the NEW Model NER from Thermolec. The NER unit provides a compact footprint making make-up air units easier to stock, handle and install - a convenience contract...

Standard Boiler

Dual-energy boilers for fossil fuel backup or standalone installations. Cozy comfort and improved efficiency while saving you money. Feel the comfort of hot water heating controlled by advanced elect...

Automatic Reset Cut-Out

The automatic reset thermal cut-out is a fixed temperature disc type safety device that opens the control circuit when it’s set point is reached. It automatically resets and returns the heater to oper...

Manual Reset Cut-Out

It offers additional protection against overheating. It is standard on heaters of 30 KW and less and not in excess of 300 volts, and optional on all others. This switch must be manually reset to make ...

Transformer

A built-in control transformer is required on most heaters to supply 24 volts to the control circuits. A Class II transformer has built-in safety protection and does not require primary fusing. Prim...

Magnetic Contactors

Magnetic contactors are used for stage switching and/or back-up for safety devices. Approved for 250,000 cycles. Magnetic contactors are cost effective and safe.

Load Fuse

Used to protect the total load or individual stages. High Rupture Capacity type (HRC Form 1).

Disconnect Switch

A built-in disconnect switch allows heaters to disconnect individually in order to perform maintenance tasks. It is a positive and inexpensive way to meet the safety rules. It also reduces the electri...

Air flow Sensor

Safety feature, monitors the quantity of air flowing through the heater, adjusts the heater’s capacity to match the air flow available and shuts the heater down in case of a total loss of air. This fe...

Air Flow Switch

A pressure differential switch is used to prevent a heater from operating if there is no airflow across the heating elements. The switch is provided with a pitot tube to be installed into the duct, wh...

Mercury Contactor

Mercury contactors are used for stage switching. Advantages: silent operation. Exceptionally reliable. Long life expectancy (Tested for 1,000,000 cycles) Note: Mercury contactors are position sensitiv...

Pilot Lights

Pilot lights are mounted on the control box to indicate that either a function of the heater is operating or a failure condition is present. The most commonly specified pilot lights functions are: pow...

Solid State Relays (SSR)

Solid State Relays are designed for controlling, silently and proportionally, a large amount of power in response to a pulsed signal (suitable for DDC, Direct Digital Control). They incorporate a dual...

D21-P

The D21-P electronic controller has been designed to take full advantage of our patented Air-Flow Sensor which modulates the heater’s capacity according to the quantity of air flowing through the heat...

D22-P

The D22-P electronic controller has been designed to take full advantage of our patented Air-Flow Sensor which modulates the heater’s capacity according to the quantity of air flowing through the heat...

D21-PS

The D21-PS electronic controller has been designed to take full advantage of our patented Air-Flow Sensor which modulates the heater’s capacity according to the quantity of air flowing through the hea...

D21-PSSR

The D21-PSSR electronic controller has been designed to be a compact solution to take full advantage of our patented Air-Flow Sensor which modulates the heater’s capacity according to the quantity of ...

D21-T

The D21-T electronic controller has been designed to take full advantage of our patented Air-Flow Sensor which modulates the heater’s capacity according to the quantity of air flowing through the heat...

D22-T

The D22-T electronic controller has been designed to take full advantage of our patented Air-Flow Sensor which modulates the heater’s capacity according to the quantity of air flowing through the heat...

D21-TS

The D21-TS electronic controller has been designed to take full advantage of our patented Air-Flow Sensor which modulates the heater’s capacity according to the quantity of air flowing through the hea...

D21-TSSR

The D21-TSSR electronic controller has been designed to be a compact solution that takes full advantage of our patented Air-Flow Sensor which modulates the heater’s capacity according to the quantity ...

D35

The D35 pre-calibrated electronic controller is Thermolec’s most flexible controller with four different input options on a single board. Jumper configurations are clearly indicated on the label and m...

D36

The D36 pre-calibrated electronic controller is the evolution of Thermolec’s most flexible controller with four different input options on a single board.

D46

Hybrid sequential Step Controller The D46 hybrid sequential step controller is designed to be used where fine control accuracy is required and the heater capacity is too high to be handled economical...

P37

Pneumatic-electronic transducer. The P37 is a Pneumatic-electronic transducer that converts a 2-13 psi input into a proportional Pulse or 0-10VDC output and therefore replaces both the P35 and P36. F...

TH34

Electronic Sequencer The TH34 electronic sequencer has been designed as a compact solution to replace bimetallic mechanical sequencers to split loads into smaller delayed sequences. When the thermost...

Thermolec CTH-291, 0-10 VDC Thermostat

0-10 VDC Thermostat This thermostat can be used as a room stat or a duct stat with the optional DS600 sensor.

Thermolec 2-Stage Thermostat

This thermostat can be used as a 1 or 2-stage duct stat with the DS600 sensor.

DS600

Duct sensor The DS-600 is a thermistor based duct sensor designed to work with Thermolec’s thermostats and electronic controllers to modulate the heater’s capacity according to the heat required. In ...

ACE sensor

AcuSteam High Limit cutoff Thermolec’s exclusive ACE SENSOR monitors the conditions in the duct to prevent excessive buildup of humidity. It is included with every AcuSteam Pro and may be used with t...

DCC-9

Electric Vehicle Energy Management System 30A/40A/50A/60A The DCC-9 is a patented Electric Vehicle Energy Management System (EVEMS) that allows a charger to be connected directly to the main power su...

DCC-10

Electric Vehicle Energy Management System 30A/40A/50A/60A The DCC-10 is a patented Electric Vehicle Energy Management System (EVEMS) that allows a charger to be connected directly to an electrical pa...

DCC-11

Electric Vehicle Energy Management System 30A/40A/50A/60A The DCC-11 is a patented Electric Vehicle Energy Management System (EVEMS) that allows a charger to be connected directly to the main power s...

DCC-12

Electric Vehicle Energy Management System The DCC-12 is a patented Electric Vehicle Energy Management System (EVEMS) that allows a charger to be connected directly to an electrical panel which would...

CTH-291, 0-10 VDC Thermostat

Flowchart - D21-PSSR

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Flowchart - D21-TSSR

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Flowchart - D21-TS

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Flowchart - D35

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Flowchart - D46

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Flowchart - TH400

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Flowchart - D22-TF

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Flowchart - D22-TFS

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Flowchart - D23TF

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Flowchart - TH22

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Flowchart - TH600

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Flowchart - D21-PS

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Flowchart - P37

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Flowchart - ACUSTEAM: Continuous Red Light Code

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Flowchart - ACUSTEAM: Error Code 1

Flowchart - ACUSTEAM: Error Code 3

Flowchart - ACUSTEAM: Error Code 4

Flowchart - ACUSTEAM: Error Code 4

Flowchart - ACUSTEAM: Error Code 5

Flowchart - ACUSTEAM: Error Code 5

Flowchart - SPLIT STEAM: Error Code 5

Flowchart - SPLIT STEAM: Error Code 5

Flowchart - ACUSTEAM: Error Code 6

Flowchart - ACUSTEAM: Error Code 6