Tag: HVAC Parts & Supplies

Heavy Duty Hvac News & Tech Tips

Heavy Duty HVAC Parts, Supplies, Solutions & Technical Tips

Spring is here and with it the return of warmer weather and the start of what we all hope will be, another busy A/C season. We want to take this opportunity to remind you of the following resources – ATCPARTS, ATC Connect, Catalogs and our blog ATCNEWS.

Ordering Parts – Important Please Note – While we do look forward to speaking with you, we know that sometimes you simply want to “place an order” rather than waiting in queue while we assist others. We trust you appreciate we can’t staff for unknown peaks and in an effort to better serve you, we encourage you to use atcparts@atc.ca .

ATC Connect – Parts Lookup and Cross Reference made easy
Arctic Traveler provides an exciting tool for HVAC components, ATC CONNECT. This tool provides OEM cross references, pictures, technical tips, on-hand inventory and so much more. Click here to get access or speak with our Customer Service Reps to start utilizing this exciting and very useful tool.
 
Catalogs – To ensure we’re all on the same page request your free catalogs here, or via email atcparts@atc.ca or speak with one of our Customer Service Reps at 1-800-295-4156.
 
*** Breaking News ***
ATC is now an authorized dealer of the SIGMA line of air conditioning, heating and filtration equipment. Developed to air condition operator cabins and control rooms, from drag lines to mining excavators, blasthole drills, haul trucks and mobile mining & construction machines, where absolute reliability is critical and performance cannot be compromised. See more here.

Our Blog ATCNEWS is how we share Best Practices and Technical Tips. With mechanical reliability at all time highs, heavy-duty A/C components rarely fail. In fact, components mainly fail because of contaminated refrigerant oil and general lack of preventive maintenance. In this edition we features 4 articles on A/C system maintenance and 2 best seller lists of components by Make.  
A/C Preventative Maintenance,
A/C Systems – How a simple inspection can save
How to inspect an A/C Compressor
How to troubleshoot your A/C Electrical system
Best selling mobile HVAC parts by Make

Completing the A/C Best Practices on our Youtube channel ATCTV, we feature
Basic Troubleshooting
How To and Which Components to Inspect
Examining Compressor Failures

Cabin Air Filters – Reduce dust, dirt and allergens – A relatively new feature on the automotive scene, the cabin air filter is often overlooked in regular vehicle maintenance. This 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. See more here

To view all our offerings, visit Product Lines to access catalog downloads or call us toll free at 1-800-295-4156, our Customer Service Representatives will be happy to assist you.

Replacement Coils & Heat Exchangers don’t have to be from the original manufacturer.
For over 30 years, Custom Coils Canada has produced replacement condensers, evaporators and heater cores for almost any mobile, commercial or industrial application. CCC services the replacement coil market in the GTA and specializes in building unique heat transfer coils and aftermarket drop in replacements. 
Visit Custom Coils Canada here or Call 905-789-8523 to hear what 30 years of heat exchanger experience can do for you.

A/C Hose repairs

Replacement A/C Hose lines don’t have to be from the Original Manufacturer!

In the past, it was difficult to find a supplier capable of doing AC hose repairs but with today’s wide selection of high-quality fittings and hose, your replacement could be right here at ATC. The Air Conditioning System provides the desired cabin temperatures to ensure operator comfort. The AC hose is used to effectively transfer both liquid and gas between the components and should be inspected for leaks and repaired or replaced ASAP, to ensure the system continues to perform as expected.

Today many hose sets come with metal tube sections, some of which we offer. If no suitable fitting is available, using a hose to replicate the metal tube is the next best thing.
Our experience suggests using Aeroquip hose and E-Z Clip may hold an advantage over crimp fittings for replacing metal tubes. Aeroquip EZ Clip & Hose fitting is a simple option for making or repairing Air Conditioning hose lines on heavy-duty trucks, agricultural, construction and other industrial applications. No hydraulic equipment is needed, rather a simple, easy to use Crimping pliers enables quick and easy Ac Hose repairs in the field.
Each Aeroquip fitting 
comes with 2 Clips which slide over the hose and a Cage which locks into the fitting, goes through the cages and is secured with crimper pliers.
AC Hose Repair with Aeroquip EZ Fittings - Clips and Cage - ATC Heavy Duty Parts & SuppliesAC Hose Repair with Aeroquip EZ Fittings - Clips and Cage - ATC Heavy Duty Parts & Supplies
This example shows an OE Hose at the top and using 4 Aeroquip fittings and hose, we can quickly provide a quality solution for your application.
AC Hose Repairs with quality fittings and hose. Call us today to see what our experience can do for you - 1-800-295-4156

The reduced diameter hose enables tighter turns, but not right angles, without concern for “kinks” which would compromise the hose and AC system.
AC Hose Repair using Aeroquip EZ Clip Fittings and Hose is a quick solution for the quick turn around needs and mobile technicians. Providing even greater flexibility, when the E-Z Clip fitting is lubricated with a slight amount of refrigerant oil before it’s inserted into the hose, the direction/index of the fitting can be changed by rotating the fitting in the hose. Once the refrigerant oil used has dried (1-2 hours) the fitting can no longer be turned or re-indexed.

Call ATC at 800-295-4156 for all your mobile heavy-duty HVAC parts, supplies and solutions – Burlington, Mississauga or Montreal.

Blower Motors by Make

Blower Motors and Wheels are integral parts in the delivery and circulation of air in your vehicles Air Conditioning system. An Electric DC motor is used to circulate warm and cool air inside the cabin and/or sleeper. The Blower Motor “blows” and circulates the warm air from the fins of the heater core or cools the air at it passes from the fins of the evaporator.
Without these components, the hot or cold air produced by your air conditioning system won’t circulate to reach your vehicle’s interior cabin and or sleeper. 
Blower Motors by Make - Freightliner, International, Kenworth, Navistar, Peterbilt, Sterling, Volvo - Arctic Traveler CanadaBlower Motors by Make - Freightliner, International, Kenworth, Navistar, Peterbilt, Sterling, Volvo - Arctic Traveler Canada

How to inspect an A/C Compressor

Take these steps to inspect an A/C compressor to ensure it really needs replacing before you pull it from a heavy-duty vehicle:

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. Inspect an A/C compressor before you pull the component from the vehicle.”


For expert insight into common failures and causes, watch Examining Compressor Failures on ATCTV
While there, check out
How To and Which Components to Inspect and Basic A/C Troubleshooting to further your understanding of A/C Systems.

For more information about AC Compressors or any HVAC component, call the mobile HVAC specialist Arctic Traveler Canada at 800-295-4156.

How to troubleshoot your A/C Electrical system

Tech Tips from Red Dot

On any vehicle and virtually any A/C 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 the 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 cannot 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.

Quick Heater Service Tip from Reddot
  • When the status is “heater fan doesn’t work,” check the ground connection for rust, paint, grime, or some other obstruction at the terminus.
  • If the motor doesn’t have a ground wire, its mount serves as a ground connection. Make sure nothing impedes the mount’s ground path.
  • Use a multimeter to make sure you’re getting full voltage to the motor. Once you know the voltage is adequate, you can then look for worn brushes, dirty squirrel-cage fans, damaged fan blades, and other more typical motor problems.

Arctic Traveler Canada
is an MSD/Master Stocking Distributor and Authorized Technical representative for many industry-leading products. Call us today at 1-800-295-4156 to see what 55 years of excellence can do to achieve your business objectives.