Monthly Archives: November 2012

PROPER START-UP OF ROOFTOP UNITS

It has been proven that a well performed start-up (1) instills confidence in your customers, (2)identifies installation and application problems, and (3) reduces call backs and consumer complaints. Too often, contractors just set a roof top unit and walk away without … Continue reading

Posted in Commentary, HVAC Tech Support | 3 Comments

TWAS THE NIGHT AFTER THANKSGIVING — AGAIN

TWAS THE NIGHT AFTER THANKSGIVING, AND I JUST COULDN’T SLEEP I TRIED COUNTING BACKWARDS, I TRIED COUNTING SHEEP. THE LEFTOVERS BECKONED – THE DARK MEAT AND WHITE BUT I FOUGHT THE TEMPTATION WITH ALL OF MY MIGHT TOSSING AND TURNING … Continue reading

Posted in Just for Fun | 2 Comments

Heating Basics — Limit Switches

Limit switches are one of the primary safeties in any piece of heating equipment, regardless of whether it is a furnace, air handler with electric heat, or packaged unit.  Anytime there is heat as part of a system, there is going … Continue reading

Posted in HVAC Tech Support | 3 Comments

Flame Sensors — Revisited

Today’s units react to unsafe conditions in less than a second. This is accomplished through the use of “computerized control modules” and a flame sensing control system known as flame rectification. The safety used in today’s furnaces that accomplishes flame rectification is … Continue reading

Posted in HVAC Tech Support | 46 Comments

X-13 Motor Troubleshooting

In a previous post , I explained what an X-13 (constant torque) motor is and how they operate.  Now that you understand what it is, now we can discuss how to properly troubleshoot the X-13 motor. Troubleshooting/Repair Before troubleshooting any HVAC system, … Continue reading

Posted in HVAC Tech Support | 56 Comments

Hurricane Sandy and Flood Damaged Equipment

None of us like to hear about disasters like the recent damage caused by hurricane Sandy along the east coast. Our hearts and prayers go out to everyone affected by this disaster. Now, as the clean up begins, the damage created … Continue reading

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