Recent content by fitter30

HDPE polyethylene pipe is recommended. Geo system is the most efficient. 45-50° ground is is more efficient to pull heat out of the ground or tranfer it back into. Have tens of thousands ******* in this building spend the money for a manual j for the load and engineering.

Might want to pull the end bells blow out windings and centrifuge switch could be packed with saw dust.

I've got a 2- 24k 3head units. 5 - 9k wall and 1-9k duct. 1/4" and 3/8" lines For 1900 sqft house. Southern Missouri gets down to single temps. Can cool and heat with one unit till it get to extremes. Two systems were chosen for parts availability not to be left with nothing with a one system...

Most if not all electronic termostats have in their program a setting for 5 minute timer compressor off. Most scroll style compressors start unloaded. 5 minute dob relay if the thermostat doesn't have a timer is a good idea.

By pulling the intake filter and putting the palm of your hand blocking the port turn on the compressor just for a few seconds. This takes the load off the connecting rod if it starts to knock loudly bearings are starting to fail.

The equipment made today with enhanced coils both evap and condenser are critical charged. List the factory charge and extended line set so many ounces or tenths per foot they came up with that charge from testing in a lab. So my money is with the factory. Question i have was the high pressure...

Valves at the condenser are shipped closed. After lines are connected most manufacturers want 500-600 lbs of nitrogen pressure for 4 to 8 hours. Nitrogen is blown out, vacuum to under 500 microns. Install manual will list what the manufacturer wants. With a unit in a deep vacuum unit valve are...

Skidsteer with forks and rubber tires would fit inside a garage. Would have head room problem of a fork lift and with rubber tires wouldn't have the problem screwing up the pavers.

Shape and size of the same uf or voltage doesn't make one better than the other. Manufacturers use smaller caps to fit in a tight electrical space so you have to go back to them for a replacement. A 440 vac one can be used on a lower voltage . Lower voltage can't be used for a higher voltage...

Super heat only works with a expansion valve. Bulb has to tight ( stainless hose champ) to the suction line at horizontal line 10-2 o'clock and insulated. Just before equalizer line. Suction temp at bulb and pressure should be at the equalizer line which very few taking sh would cut in a fitting...

Still have one with 1/3 hp 1750 rpm has a handle made fron 1/2" rod stock that my older brother used after trade school in 1971. Used it about 7 years ago after flushing it with new oil pulled 600 microns Pump must weigh 50 lbs.

Who knows what's is in condensate? Mold spores from the pan and house dust. Wouldn't use it with out filtering something for the spores.

Have very rarely use coil cleaner of any type especially ones that brightens. The reason is every time its used just a little bit of fin thickness is lost till the fin as lost its strength and bends very easily.

Citric acid is the first ingredient in Lysol. Can do damage to aluminum fins just saying

Graduated in 1971 from two years hvac trade school day school. Mercury manometer for vacuum, gauge manifold with analog gauges. 12,22 500 for high temp ac. R11 for 95% of centrifugal chillers some were R12. Analog muilti meter amp probe and a Yew megger 1000 volt. Serviceman thermometers. 2012...