Search Results for ‘hvac’

I have a 1960 two story colonial with an additional space off the back of the house. I am adding two Fujitsu minisplit heatpump systems to my home. The first system will be a 36k with extra low heating capability paired with 4 indoor units to heat and cool the main house. The second system will...

We have two bedrooms over the garage, one of them is always cold/hot depending on the season. It isn't that bad in the winter but in the summer its hot in there at night. I thought it was just the garage but I broke down yesterday and troubleshooted the venting and I think it is not connected at...

Hello everyone, new here. I have two questions. I recently purchased my first home (and its the first i've lived in that has central air so fairly newby when it comes to residential HVAC). The old HVAC system was in bad shape so I had both interior and exterior units replaced. I mistakenly...

Carrier Furnace Model:58SXC060-100GG When I power up my furnace it will run a full heating cycle and stop but then it won’t start a new heating cycle when the thermostat calls for it. I was getting a Pressure switch error code so I took the tubes off and blew threw them without any...

The bozos that installed the forced hot air heat in this house put in 48" long vent covers over a 12" vent opening - I'm thinking 48' is way too long and want to replace them with something smaller - any issues with doing that?

What is a good stand alone dehumidifier unit for a 15 x 20 basement? Needs pump built in. Tennessee, Chattanooga. Thanks

We noticed our boiler leaking today. It seems it is coming from the overflow of our expansion tank. Can anyone offer any assistance as to why this could be happening? To our knowledge, this has not happened with this boiler before. Our boiler is fairly new but they never replaced the expansion...

Hello, Does anyone recognize this Honeywell thermostat? Unfortunately, I have no idea what model this thermostat is or how to turn off the system. The screen is not touch enabled, and the up and down arrows simply adjust the temperature. There aren't any buttons or switches at the top or...

Folks, I'm doing a full renovation of the HVAC in my 2-story home. I've done the ACCA Manual J and Manual S calculations. As I was reading through Manual D, an example problem was provided for a zoned 2-story home (two zones, one for 1st floor, one for 2nd floor). Long story short, zoning in...

Looking for some advice/answers. I have a 36k outdoor unit with I believe 4 ports but currently only using 2. I have a ceiling mounted cassette that’s 15k and a wall mounted unit that is 9k. And have the heat pump option. My issue is with the big cassette. It doesn’t have automatic on or off...

Folks, I'm rebuilding my A/C recovery pump. I have never done one before but it seems pretty straightforward. Mine has the Robinair CP1320 compressor. Datasheets state that this machine is "oil-less." The rebuild instructions state to soak seals and o-rings in refrigerant oil. Other than...

Hi. I have a quote from a reputable HVAC company for complete system (A/C and gas furnace). System is a basic one. It's a Rheem and it includes a 2.5 ton condenser and a 3 ton evap coil. I looked it up at the ARHI web site and it is listed there: RHEEM RA1430AJ1 RCF3617STA...

Is there a trick to properly insulting rigid HVAC elbows with R8 duct wrap. I'm very good at insulating and sealing strait runs, but all my elbows are always cock-eyed. any help/advice is appreciated.

I have a 3/4" gas line coming off of my meter. It originally came in and fed a GFA then it split off and fed a 30 gallon water heater and a gas dryer and the other run went to a gas range. The prior owner got rid of the furnace and standing water heater used the feed that went to the water...

I've been having minor, periodic issues with my ac for a bit, but it always starts working right before I decide I need to call someone out. The gist of the issue is when the ac kicks on (typically in cooler weather or when it hasn't run in a while), the compressor starts then immediately...

Short and sweet - I'm replacing my hvac system and am not sure what I should get - Single stage or two stage? I got quotes for both and the two stage is $1500 more. I figure that would have to save me about $15 a month over 10 years to be close to worth it if the only benefit I'm going to see...

Anyone have any idea why my hardwired Safe Haven security and Honeywell Z wave thermostat are losing power momentarily multiple times a day? I’ve attempted to reset both to no avail….

All - Building a new home; a basement, main floor and an upstairs. Heated and cooled sq footage is about 4,200 total. Location is near SLC, UT. There is a utility closet for a furnace/AC/water heater in the basement. Thought that would be all we needed for hardware. Got a text from my...

Running into some complications trying to install a new Nest Learning Thermostat to our old house boiler/radiant heat furnace. No a/c connection to our old mercury Honeywell thermostat. The basic question I am wondering: which all wires should show hot/voltage at the thermostat end? Current...

I plan to install a new heat pump and plan to put the Eaton CHSPT2ULTRA as the surge protector on the disconnect. The CHSPT2ULTRA is rated for a 50 amp breaker. Our house currently has a 40 amp (2 pole) breaker. Is the functioning of the surge protector impacted negatively when the breaker...