As much as I would like to say I am an expert, I am not when it comes to the actual performance and settings of a residential gas furnace and air conditioning unit. So I am hoping some would be…Continue
Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment you have to sell, trade or wish to purchase.Please post the equipment age, serial numbers, condition, warranties and asking price.See More
"I see it as another program to verify improved performance of the existing infrastructure without the membership cost such as LEED or Passive House. What really drew me in was the opportunity to get recognized for the work we have been…"
"this is what I do for 25 yr. I find most res unit are mid .8" water Col. The tag on side of air mover says .5 or .4
you can look at SP or feet per min or temp, you get the same model. This is big, very big"
"A quick static pressure test would help you determine if you're getting the flow you need over the coil. You should be able to reference your manufacturer's documentation for the TESP. If it's too high, then it would be…"
"I'm always amused by HVAC contractors who blame 410a for whatever woes are at hand.
The cost delta for an ECM blower equipped air handler is now about $300, and for another $200 deploy a thermostat that senses and signals the air handler that…"
"I have tryed that but with the new R-410A I now get higher temps than ever. To get very high RH humid removal I all so put smaller coils in so the coil gets very coil, but the EER goes low at same time. I have been adding a…"
"Ideally you would set the blower up as a "2 speed" with a humidity controlled blower speed. Run 350CFM/ton during humid weather and 450CFM/ton during dry weather. Get the coil down to 35-40 degrees in humid weather for maximum humidity…"
"You are correct in stating that the blower fan is set to different speeds for heating and cooling. For cooling the evaporator coil is designed to operate at peak efficiency with between 350 and 450 CFM per ton of cooing capacity. Most…"
"The fan speed needs to be set to provide the air flow to each room calculated by the Manual J. It was rare to have a contractor do a manual J or adjust the fan speed until recently. The City of Austin (Texas) required thru the energy…"
"ask a test and ballance HVAC person. look up the factory CFM, or can be called fan performance data, or called SP chart. It comes with the new funace its part of the paper work that you use for knee pad. I use a water collume gage…"
"Yeah that is a big issue, especially with the improvements made to not only the equipment but what people have done to their houses. Per the HAC board down here everyone has supposed to have been doing them for years (even for replacements), but…"