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Sorry didn't pay attention when I grabbed the Grainger link.

Ok now with the same size and Merv filters

http://https://www.grainger.com/product/AIR-HANDLER-Pleated-Air-Filter-20x24x4-11C887
...

I tried to insert a pic but I don't have a URL to upload the pic to at work. Couldn't post pics so I posted catalog links.

The OEM filters that came with the units were Koch MicroMax High Effiency...

Anyone familiar with these? Basically it is a flying saucer looking unit suspended from the ceiling in our vehicle shop. Heat is supplied by piping from the boiler.

The problem they are...

Think I got misunderstood. Lines for the mini-split can easily be run at a later date. I was talking about roughing in the piping for hydronic radiators.

I'll probably just rough in the piping and make up my mind what I'm gonna do when the time comes. It's a lot easier before the sheetrock goes up.

In the process of building a house. Heat for the first floor will be hot water. My original plan is to install a multizone ductless mini-split heat pump when I finish the attic.

Do any of the...

Management just wants to replace what's there, not upgrade or change.

This building isn't in my territory, but since the chuckelhead that is supposed to maintain this complex is doing good to...

Thanks.
I was trying to do it from my work computer. May have been a feature on the page govt computers didn't like. Will try again from my home one.

Hoping someone can give me a hand.

Normally I'm just repairing our broken units or swapping parts. I haven't had to calculate and size from scratch.

About a year ago one of my knuckle headed...

Trying to upgrade to pro getting following message with the link

This site can’t be reachedThe webpage at https://goo.gl/forms/GccWXLl8mO might be temporarily down or it may have moved permanently...

I didn't think it would work but just making a wild assed guess I'd figure the system would pay for itself in 3-5 years in energy savings. Figured it wouldn't hurt to check. The radiators are the...

Existing heating system in the house is an oil fired hot water boiler with fin type radiators. Boiler is about 40 years old and still working fine. Uses about 800-900 gallon of oil for heat and...

It will be replacing a worn out Hilti 36V SDS hammer drill.

Does it do a better job than the standard 20V twist/hammer drill? Do you get a decent number of holes per charge?

Do you have the 1"...

Has anyone used the Dewalt 20V or 60V SDS hammer drill?

I'm not interested in other brands because I want to keep battery interchangeability.

Typical holes are 1/2" or 3/8" diameter 6" deep.

I'd say I probably take it in on the initial walk in about 60" of the time. It depends on the office.

Our buildings are supposed to be 65deg heat 78deg cool. Some of our buildings have a...

Just checking. IIRC the supply house I usually deal with told me 125

Where did you see it for $80?

Real easy. Tie rope around box of filters before going up ladder. Pull box up to roof untie. Climb down and tie next box on. Repeat as necessary.

That's what a 1/4" rope is for.

He got back to that office yesterday. If I understood what he told me on the phone this morning, the contactor had fried and was feeding voltage into the common side. He replaced the contactor and...

IIRC, been too many years, a bronze rod and flux is what is usually used for brazing cast iron.

Depending on what part of the pump you are working on brazing may work fine. I'd recommend taking...

Blower motor not running. Cap giving an 0L when tested.

I had to go out of state for 2 weeks so I'm not able to get back to it. My coworker is supposed to keep me updated.

An extendable paint pole with 4" roller handle works good for this.

That's what we did.




There was no easy way to do this. The transfomer had pigtails attached at the factory which went to crimp splices in the harness. We inserted probe from multimeter into...

This transformer was pigtailed from the factory. Had 248 going in. On the 24V side the black/red wire went to the red terminal on the terminal board and showed 0V. The black/blue wire went to a...

Primary was 248V

Looks like a bunch of open panels and dangling wires in a location I'm not used to seeing. THen again I haven't had to work on any gas units so I'm not sure if it should look like that.

I had to leave to get back to the office (2 hrs away) before going into double time and causing the boss to have a stroke. My coworker, who has been considerably more HVAC experience than me went to...

Does something look funny about the bottom of that hot water heater? Did they tie the exhaust for that into the 8" pipe?

Try http://www.mouser.com/

A little background first.

Responded to a call at one of our offices for a no heat condition.
Unit is a 85 vintage small Trane unit <3 ton.
Determined blower motor was not working. Replaced a...

Depending on how the connections are made in the motor, some motors can be made to run in either direction. Had this happen with the burner motor on a furnace. I had replaced pump and motor, I...

Looks like it might be dryer duct

Couple of our 350 Transits have over 70000 and mine is close to 40 with no rear end problems. I think every one we have had a throttle body problem within the first 10000 miles.

There is a recall...

I'm pretty sure the one I drive every day has a 25 gallon tank. I know I've put 22 gallon in it. I wouldn't call it thimble sized.

Looks like a hydraulic velocity fuse.

There is a closet I could come back later and run a chase up or I could always run a chase up the outside like this one.
http://www.use.com/media/2013/0129/3099268/p_035.jpg

Not the brightest design when 50% of the time you snag it on your pants leg when you get out of the van.

Sometimes you can't get OEM. Had one rooftop unit last summer that had a pair of dual 7.5uf caps from the factory, each cap served 2 condenser fans.

Carrier counterman looked at my like I had 2...

Not picking at you install but asking for my knowledge.

With the blue 1895 farm house, wouldn't it have been better to install the condenser on the other side of the conduit leading to the second...

Thanks, I'll probably follow thermofridge's suggestion about putting in a conduit to pull the wire later.

I was assuming the indoor units pulled juice from the breaker panel and were triggered to...

Maybe I could have been more clear.

I'm looking at a multi-zone system with 1 outdoor unit supplying 4 different inside zones which each have 1 air handler.

Mikel I'll take a look at that...

I am currently building a house. At the present time the attic will be unfinished but I plan to finish it at some time in the future. I am planning on installing a Mini-Split system, probably...

I plan on it. The instructor for most of the HVAC classes at our National Center for Employee Development highly recommends the site and to get Pro membership.

I just joined and would like to introduce myself.

I am a Area Maintenance Technician with the US Postal Service. In the area which I work we primarily have package rooftop units and heatpumps. We...