Category: Product Feature

Hydronic Heater-Introducing the S3

Eberspaecher, the leading system developer and supplier of vehicle heaters, is expanding its product portfolio with the new Hydronic heater, the S3 Economy (5kW) pre-heater. The water heater impresses thanks to its compact dimensions and flexible installation options for simple retrofitting in a large number of vehicle models. As a ground-breaking all-in-one solution with comprehensive peripheral devices, it offers installation partners many practical advantages. With the new EasyScan, diagnostic and service tool, workshop staff can analyze the operating condition of the pre-heater easily and quickly.
• Compact, efficient water heater • Innovative peripheral devices and new diagnostic device • Simplified installation • CARB approved

Compact and robust water heater for simple installation

With the third generation of its Hydronic heaters, Eberspaecher is offering an easy-to-operate preheater with stepless heating power control. The coolant or hydronic heater works efficiently with all popular types of fuel. Due to its robust construction – with an encapsulated fan motor and the separation of cold and hot components – it is designed for longevity. A high IP protection class also secures the unit from the ingress of water during high-pressure or steam jet cleaning. The new water spigots are fully rotatable by 360 degrees and are fully replaceable, they ensure convenient and rapid fitting in a range of installation positions. Optimized brackets enable the pre-heater to be mounted anywhere in the smallest possible space and to be attached rapidly and permanently.

Click here to see how the Hydronic S3 works


Espar's new fuel fired coolant or Hydronic heater, the S3 economy

Arctic Traveler Canada (ATC) is proud to be an Eberspacher Master Stocking Distributor (MSD) and offers the complete range of products. Eberspaecher has the most comprehensive range of fuel operated air and coolant heater products available in today’s marketplace with affordable heating solutions for on & off-road equipment, small trucks, forestry, mining, military and so much more. Offering close attention to detail and technical design, Eberspacher leads the industry in Excellence in Supporting Product Applications and Reliability. 

For more info call 1-800-295-4156 our CSR’s are waiting to help or visit our website.  Arctic Traveler Canada (ATC), specialist in mobile climate control.

How to inspect an A/C Compressor

Before you pull the A/C compressor from a heavy-duty vehicle, take these steps to confirm that it really needs replacing:

1. Is The Compressor Rotation Smooth?
With the vehicle off, turn the compressor shaft with a 14-mm socket. If you feel grinding or hanging as you rotate the shaft, it’s probably due to broken components within the compressor. If the rotation is smooth, move on to Step 2.
2. Is The Coil Getting More Than 11.5 Volts?
Take a reading with the engine running and the clutch engaged. If there’s insufficient voltage, get to work on that. Otherwise, move on to Step 3.
3. Is The Coil Resistance Between 2.8 And 4.4 Ohms?
Any resistance outside this range will prevent the clutch from engaging or will cause used circuits to open. If the answer is yes, continue to Step 4.
4. Is The Compressor Able To Produce 350 Psig Or More?
If not, leave the compressor where it is. The system may have a low refrigerant charge because of a leak that needs repair, or a high-side blockage that limits refrigerant flow to the compressor.

Tech Tips from Red Dot
” We see lots of compressors that are returned fully functional and therefore not warrantable.
Get the diagnosis right. Perform a simple compressor function check before you pull the component from the vehicle.”

How to troubleshoot your A/C Electrical system

Tech Tips from Red Dot

On any vehicle, and virtually any system, electrical problems are among the hardest to troubleshoot. If you suspect an electrical problem with the A/C system, here’s a two-stage inspection routine that virtually anyone can do with no special tools or skills:

1. Inspect Electrical Connections

As you perform a visual inspection under the hood (cab) and/or at the rooftop condenser, take a moment to check all electrical connections both visually and by feel. Make sure all leads and wires are properly supported and securely connected, and that there’s no corrosion or grime on the leads or connectors.

2. Check Electrical Current Flow and Device Functions

Perform the following steps to check current flow and electrical device functions:

  • Turn on the ignition. 
  • Turn on the A/C system. This will power the thermostat and clutch. If it does not come on, use the A/C mode switch to check the leads to the switch. You should hear a “click” from the thermostat and hear the clutch drive plate “snap” against the clutch pulley. 
  • Check fuses. If all the connections are clean and tight and there’s still a failure, check the fuses in-cab as well as in-line.
  • Check A/C clutch engagement. Since you can’t see and may not hear the clutch engage, get out and look at the clutch. If it’s engaged, you will see that the drive plate is against the pulley and not slightly spaced from it. If you aren’t sure the clutch is engaged, look for the lead wire connector near the clutch. Break and close that connection. The clutch will disengage and engage again.
  • Test blower speed operation. Some systems have a common switch that turns on the air conditioner and powers the blower motor. Test blower speed operation by adjusting this or the separate blower control switch. Feeling the air flow from the ducts or note blower sound (speed) changes.
  • Inspect roof-mounted condensers. Don’t forget to inspect roof-mounted condensers and A/C units for dirt and debris. Be sure the condenser fan(s) are working properly and all parts and electrical connections are securely fastened. The roof-mounted condenser fans may come on when the system is turned on. Like the thermostat and most clutches, the normal on-off cycling action can not be observed until the engine is running with the A/C system on.

Once your visual inspection is complete, talk to a qualified A/C technician about what you found. Your troubleshooting efforts will be rewarded with a speedier repair and perhaps a lower repair bill.

Thermistor Kit

What is a Thermistor ?
An electrical resistor whose resistance is greatly reduced by heating, used for measurement and control. Thermistors, derived from the term THERMaIly sensitive reslSTORS, are a very accurate and cost- effective sensor for measuring temperature. 

Your HVAC Thermistor can be replaced with #1400K for Quicker Installation and Less Hassle! 
Our Kit contains “First Fit OE Products”  for longer life solutions to today’s A/C problems.
Check out the video courtsey of MEI here ….

International & Prostar HVAC Thermistor Kit for quick hassle free replacement of OEM part.

Cabin Air Filters – Increase A/C efficiency and Reduce dust, dirt and allergens

A relatively new feature in the heavy duty industry, the cabin air filter is often overlooked in regular vehicle maintenance. That’s unfortunate because the cabin air filter is just as important to the passengers as the engine air filter is to the vehicle and a likely cause of “A/C Not Blowing Cold“. A cabin filter processes the air that enters the passenger compartment via the vehicle’s heating and air conditioning system, increasing passenger comfort by trapping particulates, pollen, and other irritants.

For people with allergies and other sensitivities to airborne agents, the cabin filter represents a significant advance. Replacing the cabin air filter at the recommended interval, or sooner especially in areas of high particulate, allows the A/C system to run at optimal efficiency and passengers to breathe cleaner, fresher air, which makes any journey more enjoyable – Courtesy of Denso Corporation


Arctic Traveler Canada  carries a complete line of Off Road/Agricultural Cabin Air Filters. Call 1-800-295-4156 for more info.

A/C Preventative Maintenance Schedule

When it comes to Air Conditioning a good Preventative Maintenance program will increase operating time and save money by identifying concerns before they become problems. Once the hot weather hits, implementing planned maintenance allows you to schedule repairs versus reacting to sudden unexpected issues.
Remember to always use caution when performing preventative system maintenance, as ambient conditions (heat load) will increase refrigerant hose temperatures and don’t forget having the right quality parts on hand makes all the difference. See How To and Which Components to Inspect and watch this video to learn more about Basic A/C Troubleshooting.

A/C Preventative Maintenance - a regular HVAC PM program will save you money and decrease down time.