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Search: Posts Made By: HVACGuy
Showing results 1 to 25 of 134
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Forum: Air Conditioning and Cooling Systems
05-18-08, 02:12 PM
Replies: 5
Views: 19,712
Posted By HVACGuy

25 ohms is probably about right for a 1/4 or 1/3...

25 ohms is probably about right for a 1/4 or 1/3 HP motor.
Forum: Heat Pumps and Electric Home Heating
05-18-08, 02:04 PM
Replies: 2
Views: 1,202
Posted By HVACGuy

you would also need a multi speed motor to begin...

you would also need a multi speed motor to begin with. The true variable speed systems today use DC motors with a built in AC/DC inverter, this allows for true variable speed rather than just multi...
Forum: Gas and Oil Home Heating Furnaces
05-18-08, 01:55 PM
Replies: 5
Views: 2,176
Posted By HVACGuy

Also give a look at: ...

Also give a look at:

http://www.goheil.com/go/index.asp

under product information, click on HVAC cost calculator, it will let you try a few options to get a good idea.
Forum: Gas and Oil Home Heating Furnaces
05-18-08, 01:49 PM
Replies: 5
Views: 1,613
Posted By HVACGuy

Good point, just would like to add: In you...

Good point, just would like to add:
In you climate a 13 or better heat pump system would be best. Many 14 SEER units are now comp in price to the 13 SEERs, but when you get higher, the price...
Forum: Air Conditioning and Cooling Systems
05-18-08, 01:34 PM
Replies: 5
Views: 19,712
Posted By HVACGuy

Could be a failure in the circuit board. Hard to...

Could be a failure in the circuit board. Hard to tell without knowing more about the unit Make, Model # voltage etc.

Does the condenser come on with a call for a/c, if so then you have 24V?
Forum: Air Conditioning and Cooling Systems
05-18-08, 01:28 PM
Replies: 4
Views: 1,479
Posted By HVACGuy

With the info you provided, my guess is a bad...

With the info you provided, my guess is a bad capacitor. The give away to me is that your compressor is tripping its overload AND the fan won't work. Your outdoor unit usually has a "dual capacitor"...
Forum: Air Conditioning and Cooling Systems
07-26-07, 08:09 PM
Replies: 2
Views: 1,093
Posted By HVACGuy

Sounds as if the blown fuse was just a symptom of...

Sounds as if the blown fuse was just a symptom of the true problem. The capacitor can be tested by an experienced tech. If the fan motor needs replacing, make sure the capacitor gets replaced as...
Forum: Air Conditioning and Cooling Systems
07-26-07, 08:05 PM
Replies: 2
Views: 1,309
Posted By HVACGuy

It sounds like the fan switch and the cool relay...

It sounds like the fan switch and the cool relay are using two different fan speeds. If you reconfigure them to use the same speed then the changeover should be seamless.
Forum: Air Conditioning and Cooling Systems
07-26-07, 08:02 PM
Replies: 14
Views: 3,290
Posted By HVACGuy

Unhappy Sorry I just re read your post. Now I get it,...

Sorry I just re read your post. Now I get it, it's on the bottom......I really should pay more attention.

If your furnace has multiple speeds for the blower, try jumping down a speed to see if...
Forum: Air Conditioning and Cooling Systems
07-26-07, 07:56 PM
Replies: 14
Views: 3,290
Posted By HVACGuy

Red face If your coil is mounted on top of a downflow...

If your coil is mounted on top of a downflow furnace, it's on the return side and needs a trap. If there is no trap, it pulls air in through the drain and won't release the condensate until the unit...
Forum: Air Conditioning and Cooling Systems
07-26-07, 07:53 PM
Replies: 10
Views: 2,731
Posted By HVACGuy

Freezing is caused by the evaporator temp going...

Freezing is caused by the evaporator temp going below 32 degrees. Seems obvious, but why?

1. Evaporator pressure is too low due to problem in the refrigerant system.
Low charge
Restriction (txv...
Forum: Air Conditioning and Cooling Systems
07-26-07, 07:39 PM
Replies: 6
Views: 2,379
Posted By HVACGuy

Love that dual cap. Looks like a can of soda that...

Love that dual cap. Looks like a can of soda that froze! He He
Forum: Boilers - Home Heating Steam and Hot Water Systems
03-01-07, 06:42 PM
Replies: 8
Views: 1,224
Posted By HVACGuy

There are a few boiler/hot water combo units out...

There are a few boiler/hot water combo units out there. The Teledyne Endurance is one of them. It's a good option if you have a space issue. If you have the room, go for the indirect w/h. You can...
Forum: Air Conditioning and Cooling Systems
03-01-07, 06:34 PM
Replies: 7
Views: 1,378
Posted By HVACGuy

Unhappy Wow, you're up to your keester now. I'll...

Wow, you're up to your keester now.
I'll apologize for my self gratifying smirk now. Nobody is going to get more enjoyment from a failed DIY job than a prof. Just remember it the next time someone...
Forum: Boilers - Home Heating Steam and Hot Water Systems
02-28-07, 02:17 PM
Replies: 13
Views: 6,719
Posted By HVACGuy

Smile Sounds like you have the right idea. I have alot...

Sounds like you have the right idea. I have alot of different brushes. For the peerless I use a 3/4" tapered brush and a soot saw if it's clogged. A long piece of flat metal like a slim jim works...
Forum: Boilers - Home Heating Steam and Hot Water Systems
02-28-07, 04:57 AM
Replies: 7
Views: 1,785
Posted By HVACGuy

Smile How are you going to purge it? You should add a...

How are you going to purge it? You should add a boiler drain & Tee on the return just before the ball valve to act as a purge station. The fish would like that.
Forum: Heat Pumps and Electric Home Heating
02-28-07, 04:37 AM
Replies: 4
Views: 1,456
Posted By HVACGuy

Post I wanted to get back to you on this. Here's a...

I wanted to get back to you on this. Here's a paragraph out of an intro to heat pump training class that I teach locally:


"The Coefficient of Performance of a heat pump is the measurement of how...
Forum: Heat Pumps and Electric Home Heating
02-28-07, 04:30 AM
Replies: 11
Views: 1,425
Posted By HVACGuy

Wink check this about sizing your humidifier: ...

check this about sizing your humidifier:

http://www.just-humidifiers.com/humidifier-sizing.php
Forum: Heat Pumps and Electric Home Heating
02-28-07, 04:24 AM
Replies: 5
Views: 786
Posted By HVACGuy

Smile It may be failing to start back up after a shut...

It may be failing to start back up after a shut down. That is the most common. The hardest thing for a motor is to start. Once it's running it'll usually stay running. Here's the most common causes...
Forum: Heat Pumps and Electric Home Heating
02-28-07, 04:14 AM
Replies: 1
Views: 1,312
Posted By HVACGuy

This is probably the one you need: ...

This is probably the one you need:

http://shortyshvac.com/index.php?main_page=product_info&cPath=27&products_id=31
Forum: Boilers - Home Heating Steam and Hot Water Systems
02-27-07, 04:42 PM
Replies: 13
Views: 6,719
Posted By HVACGuy

Smile You're getting back pressure from the chamber,...

You're getting back pressure from the chamber, which means the boiler is plugged. You need to remove the top and brush & vacuum out the cast iron sections. Be careful of the chamber liner, you can...
Forum: Boilers - Home Heating Steam and Hot Water Systems
02-27-07, 04:34 PM
Replies: 3
Views: 897
Posted By HVACGuy

I'm guessing you have zone valves controlling...

I'm guessing you have zone valves controlling your zones. If so, your downstairs valve probably has a bad end switch.
That's a small "micro switch" that's inside the valve body. The switch is...
Forum: Heat Pumps and Electric Home Heating
02-26-07, 07:25 PM
Replies: 4
Views: 1,456
Posted By HVACGuy

Cool Today's heat pumps are about 2 to 2 1/2 times as...

Today's heat pumps are about 2 to 2 1/2 times as efficient as electric heat at 17 degrees. (with a COP of 2.2, where electric resistance heat is a COP of 1)
Forum: Heat Pumps and Electric Home Heating
02-26-07, 07:20 PM
Replies: 11
Views: 1,425
Posted By HVACGuy

Smile Of course a bypass humidifier will work with a...

Of course a bypass humidifier will work with a heat pump. The air doesn't need to be hot, just dry.
Here's some information about humidity & humidifiers

...
Forum: Heat Pumps and Electric Home Heating
02-26-07, 07:12 PM
Replies: 9
Views: 4,082
Posted By HVACGuy

Cool Yeah, you're going to want that back up heat...

Yeah, you're going to want that back up heat during the defrost cycle.
When the system is config correctly, just let it do its job. For mor information on heat pumps, here's a good source I found:
...
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