The tag has no usage guidance.

learn more… | top users | synonyms

0
votes
1answer
17 views

What is required to recharge refrigerant in a built in ICE CAP Air conditioner that cannot be moved?

My apartment has a built in air conditioner unit. The brand is ICE CAP and it doesn't look like there is any way to remove it as its built into the cabinet frame that has an external exhaust outside. ...
0
votes
0answers
15 views

Central Air Conditioner coil cleaner

What is the best way to clean Air Conditioner could I bought two cans of web cool cleaner foamy thing http://m.homedepot.com/p/14-oz-Condenser-Coil-Cleaner-WCOIL/100351663 So I ended up using two ...
0
votes
1answer
41 views

My Air conditioner suddenly became defective after a power outage

So, these are the symptoms: 1] The big fan outside is taking a lot longer to start. 2] Within 2 minutes of start-up and cooling, it makes a growling/ rattling sound and 3] The power switch to start ...
0
votes
1answer
43 views

Foam board insulation over drywall

Guys I am living in a 500 sq ft apartment built in the 1950's and it has a south facing wall. I run the 10000 BTU AC almost 24/7 and in the afternoons the wall is very warm if not hot to the touch on ...
0
votes
1answer
97 views

How long does it take to add 1 lb. of refrigerant to an air conditioning unit?

My HVAC unit was running but not cooling properly. I called an HVAC guy who came to check. He came without a scale and told me he can fill the refrigerant and tell me how much he filled by just ...
1
vote
2answers
31 views

Replace manual thermostat with programmable

I have a Flair 3-wire thermostat, open common and closed, with 3 terminals marked 4.5.6. 4 black wire=open terminal, 5 white wire=common terminal, 6 red wire= closed. I want to replace with a ...
0
votes
2answers
30 views

Fridge is not cooling

When I was cleaning my fridge to remove the ice from the fridge, Accidentally my I made a hole in the bottom plate of the fridger and some liquid start leaking, I guess it's a coolant. After that my ...
1
vote
1answer
58 views

HVAC making sound even when off

At Thermostat Fan was on Auto Cooling was On Outside Unit was making noise. Outside Unit Fan not coming on at all Next to the compressor on the Wall there was On Off Switch, I turned off power ...
0
votes
3answers
152 views

In what circumstances would an AC produce no condensate but still cool the air?

In what circumstances would an AC produce no condensate but still cool the air?
0
votes
3answers
48 views

Cooling radiators in summer?

How efficient would it be to use radiators circulating with cold water, to cool house in summer? Wondering if anyone has tried this, and how well it works? I was thinking about H/AC in general, and ...
0
votes
1answer
56 views

How long should it take to a 1.5 tons AC to cool down a 2000sqf house from 80F to 77F?

I know that it might depend on a lot of things like: -how air tight is the house -how old it is (insulation, windows etc) -what windows are installed -BTW I have casement window -outdoor temp (...
0
votes
0answers
9 views

trouble shooting home AC

air conditioner unit outside only turns on when the thermostat is put in to the on fan position.and the heat/cool is in the off position it's a carrier It's had heat all winter long. and now won't ...
4
votes
4answers
127 views

How can I add thermal mass to my house?

We're part of a real-time pricing program with our electric utility company, and a good strategy for offsetting electricity use during peak demand times is to pre-cool the house. The more thermal ...
1
vote
1answer
51 views

Should storm windows be removed if AC will be on and windows rarely opened?

We generally run our AC most of the day. I am wondering if it is a detriment to leave the storm windows on (b/c they create a pocket of hot air) or a potential benefit (by reducing the escape of cold ...
-2
votes
4answers
70 views

Alternative ways to Cool body in hot apartment with many floors?

You are forbidden to build a cooling system and no big investment is allowed. Your room is about 27-30 celcius and it takes hours until the room temperature is about 25-26 celcius again, making ...
1
vote
2answers
40 views

What is the most efficient window design to maximise cooling in a tropical climate?

I am building in equatorial Indonesia. My building is roughly 10x4.5 metres in footprint, and it will be a two storey (3.5 metres each) concrete structure. The building backs directly onto a limestone ...
1
vote
0answers
76 views

AC capacitor testing with multimeter

When running through my check list to start the AC for the spring/summer I noticed the outdoor fan was not running, hence no cooling. I'm using a basic digital multimeter to test a capacitor with the ...
2
votes
3answers
180 views

Will a 2-stage heat pump cool my upstairs on low stage?

I am currently upgrading my furnace from an oil furnace/AC combination to all heat pump. I am considering two stage vs single stage heat pumps. I understand that two-stage will supposedly give me ...
1
vote
4answers
143 views

Is it crazy to put a hole on a fridge?

I want to buy a mini fridge, not for food storage, but for storing stuff I don't want to evaporate (gets hot in my room during summers) or preserve. I'm thinking maybe once in a while I want to make ...
0
votes
1answer
46 views

Improving insulation on windows and preventing heat loss

Here are the images of my window (currently it's 18F/-8C outside, 74F/23C inside): Now, this condensation / ice forming gets even worse - on some days whole bottom of the window from the first ...
0
votes
0answers
24 views

How do I wire a universal honeywell control board to a york LP gas package unit?

i bought this universal honeywell control board and I'm trying to figure out how to wire it up. I'm trying to wire it up to a York gas package unit. I have looked all over the web for pictures and ...
1
vote
2answers
603 views

Refrigerator big temperature difference between bottom and top shelf

I feel that my refrigerator is under-performing. I have the thermostat set to the coldest position, waited 24 hours, and with a thermometer it reads 4c on the lowest shelf, and between 8c and 9c at ...
2
votes
4answers
375 views

West facing master bedroom getting hot from afternoon sun

I am renting a townhouse where the master bedroom is always getting way hotter than the rest of the house. It's the only room on the top floor on the west side of the house and only has one window on ...
0
votes
1answer
45 views

Can I vent room air to the outside?

The building interior gets hot during the day and stays hot during the evening when it is much cooler outside. It would be a really great option to simply vent the hot air outside instead of having to ...
0
votes
1answer
20 views

humidifier trouble beware

Why would a humidifier with whirlpool action be pulling air through the floorboards of the lower flat in a two flat house built in the 20's with no insulation, bring fumes into the flat from the ...
0
votes
1answer
54 views

Should there be a cap next to my furnace ac drain?

In the picture below, the left side has a good amount of airflow while the ac/blower is running. The tube on the right is the drain that the condensation flows out of to the floor. Should there be a ...
2
votes
4answers
2k views

HVAC system that pulls-in cold air from outside?

My house has an existing forced-air heating system and I'm looking at getting central AC added in a few weeks' time (indeed, I've booked contractors for estimates next week). An AC system would keep ...
0
votes
1answer
3k views

Blower fan works w/ heat “auto”, not with a/c “auto” or on “on”

I've read the posts with the opposite issue, which have been helpful (you guys are amazing!) but still no solution. Problem is that the blower fan does not come on when system is on "Cool" and fan is ...
1
vote
1answer
89 views

Close Garage Door?

My wife insists the garage should be closed in the summer, because we run the AC inside. However - when leaving the garage closed, temperatures reach roasting levels better suited for cooking than ...
8
votes
1answer
380 views

Rheem Heat Pump A/C Mode Delay Cycle In Hot Weather

I have a Rheem 15PJL48A01 heat pump which has been working correctly for years, and is maintained properly. It is hot here currently and so it is operating in cooling mode. Yesterday and today, it ...
1
vote
0answers
11 views

How to add extra 24VAC wire (C wire) [duplicate]

I have recently bought a Honeywell rth9580 programmable WiFi thermostat. Unfortunately I have old electric heating/cooling system probably from 70's. The system is based on two relays (I guess ...
1
vote
1answer
80 views

What is causing this air-conditioning unit to cool on cold days?

This is a temperature log from a reverse cycle air conditioning system that has run fine for getting on for 30 years. It has suddenly started to blast out cold air on days when it should be heating. ...
0
votes
2answers
237 views

Changing from 2 ton to 2.5 ton AC

Friend wants to give me their puron systems 13 sear 2.5 ton AC that they replaced. It was still working fine but 10 years old they wanted to change it out. I currently have a York 2 ton unit that ...
4
votes
2answers
6k views

Does running a dehumidifier with an AC unit save money?

I've done as much research as i can an every site i hit seems to have a different story on my question: "Will a dehumidifier save energy while running your AC through the summer"? The ones that say "...
1
vote
2answers
589 views

Options for a small, single room AC with no windows, no drainage possibilities, and not water vapor based

There is a room in our apartment which we use as an office that is always 10 to 20 degrees warmer than the rest of the house. The apartment is cooled using a standard central AC, however the room in ...
0
votes
0answers
318 views

Would increasing the size of the A/C duct for my kitchen improve cooling?

As part of an ongoing kitchen project, I'd like to relocate the existing a/c register in the ceiling (which is located next to an interior wall) to the center of the room and upsize the duct (and ...
0
votes
2answers
32 views

add a temp gauge or “dimmer” to cabinet fan

I have an AC cabinet fan cooling a cabinet that warms with 2 CPUs and a couple external hard drives in it that are on 24/7. However, the fan runs furiously fast and loud and it only really needs to ...
0
votes
0answers
72 views

how to cool your roof naturally?

I live in the multi floored gated community house in South India with the ceiling exposed to sun.On addition to this my windows are not exposed to open air. In summer it gets really hot as the hot ...
0
votes
1answer
1k views

Central Air duct does not blow

We moved into a new house last year, the central A/C works great for all the rooms (even for closet) but we have a problem in just one room. There is almost no air flow coming from that room's air ...
1
vote
1answer
709 views

What could cause a heat pumps line sets to be the same temperature when running?

The symptom I'm dealing with is that the heat pump system isn't cooling as much as it should. Tested it today, was about 79°F inside and outside; system was blowing air at about 73°F. ...
1
vote
2answers
336 views

What are the external airflow requirements for portable and window AC units?

I have a window well in a basement where I'd like to setup a portable AC unit (~10000 BTUs). There is a cover that I need to keep in place to avoid water collecting in the window well, but I could ...
3
votes
4answers
4k views

Apartment on the top floor gets very hot - cheap, eco friendly ways to keep the place cool?

I have an apartment on the top floor of an apartment building (the community roof is right over us). In summer, the place gets very hot! I can't start a community garden upstairs and am dying with the ...
0
votes
1answer
1k views

Is it possible to use add-a-wire with my current configuration to add a C-Wire? [duplicate]

I only have four wires: Red, Blue, Yellow, and Green. My old thermostat jumps the R to RC and leaves C empty. I have a new thermostat that wants 5 wires, but I don't have C. I am not sure what the ...
2
votes
1answer
116 views

Is infrared blocking film effective in reducing temperature inside a room?

I was going to put a foil on windows, but found a film that is alleged to reflect rays from infrared spectrum, thus preventing 60% of sun heat of entering a room. Any criticism on it? Or personal ...
2
votes
8answers
14k views

How do I keep my house cool especially my terrace during summer?

I live in Bangalore in an apartment on the top floor and during summer, my terrace (built of concrete) absorbs a lot of heat. When I come home and switch on the fan, it ends warming my room and it is ...
0
votes
1answer
2k views

Need help running and connecting a 'C' wire to my new thermostat [duplicate]

I have a Laars gas boiler that has 3 heating zones; basement, 1st floor, and 2nd floor. I want to replace the old mercury honeywell tstats on the 1st and 2nd floor with newer honeywell RTH9580 wifi ...
2
votes
2answers
1k views

Does our main air intake need an electrostatic filter if our furnace already has one?

We have an electrostatic filter on our furnace right where in main air intake connects. We recently had our ducts cleaned and they told us we also needed to have our main air intake cleaned (an extra ...
2
votes
2answers
1k views

Why do air conditioners have thermostats, not humidistats?

I've noticed it over the years in various living quarters: an inside A/C temperature setting that's appropriate and comfortable for a given outside temperature is quite unbearable when the outside ...
1
vote
2answers
95 views

Finding the temperature sensors in a room [closed]

It feels very cold in my workplace. They set the temperature to 70F which is below the comfort level, and it is a nuisance to wear a jacket all the time. I am thinking of locating the temperature ...
0
votes
2answers
391 views

Why does my HVAC begin vibrating and stop cooling at night?

I am calling a HVAC technician since this is probably too complex a problem for me, but wanted to hear some possible diagnosis. The symptoms are as follows: The A/C is working well during the day (...