DDSM1 Quickly Diagnoses if Pressure Switch is Starting to Fail

Pressure switches are often out of calibration before they completely fail, and it is for a wide variety of reasons --  all of which can cause the furnace to operate in an unsafe manner.

The DDSM1 Draft Simulator creates a controlled vacuum to test pressure switches, so technicians can tell exactly when a pressure switch closes and opens.  This either proves that the switch is within specification, or identifies if the switch is starting to fail.  

Plus, the DDSM1 is the only tool able to calibrate adjustable pressure switches to manufacturers’ specifications.  This saves contractors from carrying a large inventory of pressure switches on their trucks, and from leaving the job site to buy pre-calibrated switches.

Competitive Advantages

A pressure switch is a safety device that prevents furnaces from running in unsafe conditions.  Until the DDSM1 Draft Simulator came to market, there were no safe, accurate, and reliable ways to test pressure switches.

Now HVACR professionals can test pressure switches to see if they are failing, and can calibrate adjustable pressure switches to furnace specifications, so there's no need to carry a wide variety of switches on their truck, or need to leave the job site to go purchase a pre-calibrated pressure switch.

• Engineered for service in the field –  With the Draft Simulator you can expect long battery life, sturdy controls, a rugged reinforced shell, and an overall shape that allows it to fit firmly in one hand.
• Precision controls –  allowing HVAC Technicians to fine-tune negative pressure and observe accurate results within minutes.
• Two Applications – Capable of both calibrating adjustable pressure switches and testing existing pressure switches in non-powered furnaces.