HVAC 155 Nitrogen test with MQ and Probes

[@musakavalci9470]

Just downloaded the MQ app. Will give it a go.

[@love2hvac]

It takes a bit of getting use to. Once your past the learning curve, it's a whole new world.

[@musakavalci9470]

@@love2hvac just got used to the testo app. The MQ one looks pretty decent. Thanks again for the vids. 👌🏼

[@UncleEarlHeatingAirCondition]

Thank you Ty

[@kevinhoronzy6011]

Don't go so fast with when pressing buttons on the app. Hover over the icon so we can see what u are touching on the app.

[@HVAC_Tips_Tricks_Calcs]

2 questions. What if you're doing a mini split. Do you crack open the liquid line to purge air? Also. Do you need to keep MQ running the entire time or will it run in the background. Thanks!

[@love2hvac]

I add a service port on the small line just for purging and pressure testing. I do leave MQ running.

[@HVAC_Tips_Tricks_Calcs]

thanks!

[@TheRealoldcar]

Is the test calculator set for nitrogen or the refrigerant entered in the system profile section of MQ?

[@love2hvac]

Preset for nitrogen

[@kevinhoronzy6011]

Could you also test the high side 300 psi or only limited to 150psi?

[@ihg91]

Where do you get a nitrogen tank that small ?

[@garypoplin4599]

3:35 - Every time I attempt a screenshot here, MQ forces a logout of my account! What am I doing wrong?!

[@love2hvac]

MQ has changed since this video was made. They no longer allow screenshots unless you pay the $5 per location. Now some people using MQ on a tablet then taking pictures of that with their phones.

[@matttzzz2]

What the fuk

[@Doe08]

Why does my liquid line probe spray refrigerant out can someone help is it the probes or the system

[@love2hvac]

The valve core in the system is probably backed out too far. Try tightening it up. You can also use Accutools S10767 Core Depressor Tool 1/4" x 1/4" It attached to the probe and allows you to disengage and engage the valve core manually.