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HVAC and Refrigeration

HVAC and Refrigeration jobs can be easier when you shop Grainger first! Get all the heating and air conditioning systems and supplies you need from one convenient source. Find gas, hydronic, oil-burning and portable electric heaters for winter and window fans, refrigeration and air conditioners for summer. Grainger's huge selection of exhaust fans, thermostats, filters and controls will help keep your facility running efficiently year-round.

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HVAC and Refrigeration Q&A

HVAC and Refrigeration
(45 Questions : 69 Answers)

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I have two chillers and need fine glycol or antifreeze to put in then so dosnt take out the pump
1 year, 7 months ago
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Answer: 
There are different types of glycol for different applications. I recommend calling our HVAC tech team to discuss your application details to find the correct product. 800-472-4643

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1 year, 7 months ago
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Answer: 
You need to have a sample of the water tested to determine how much chemical and of what type to put in.
1 year, 7 months ago
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Answer: 
a water treatment like the one you mentioned or an additive that contains a lubricant for the seals and bearings. It also helps keep down oxidation on internal parts. Either is available at johnstone supply or maybe grainger
1 year, 7 months ago
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Is there an adapter or hose with th small end for the old F22 and the other for the new 134.
1 year, 4 months ago
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Answer: 
yes. It is available at most hvac supply stores.
A major note here. You are not only dealing with a different Freon but also a new type of oil. You really need new hoses so you don't mix oils. You may get by with it, but if you are working on a car it may cause problems
1 year, 4 months ago
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Answer: 
There are conversion kit for the automotive industry for R12 to 134A that might meet you requirement. Google R12 to R134 and select images. There quite a few to choose from. Might help ?
1 year, 4 months ago
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Answer: 
Yes. almost any refrigeration supply has them. the 134a is a quick connect chuck. Here in St. Louis, MO I got mine from United.
11 months ago
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Duo Therm Monel no 1460-5 Serial no 1658x56 Control SP I having a hard time finding replacing parts for it. I wish their is somebody to helppppppppp
1 year, 7 months ago
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Answer: 
In order to better assist you we will need additional information. Please call 1-800-Grainger Monday-Friday 7AM-7PM to speak with a Technical Product Support Specialist.
1 year, 7 months ago
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Answer: 
Their web site, or google the model number for parts.
1 year, 5 months ago
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Answer: 
Determine where the heater was purchased from and see if parts are still available for that model.
1 year, 7 months ago
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Replaced blower motor on AC 1100 rpm to 1600 ... Three speed motor on slowest speed Is ok, Med or high loud & shakey
9 months ago
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Answer: 
Although we can only speculate, it sounds as if the unit was balanced for a lower RPM at 1,100. Manufacturers do not suggest running at higher speeds than what they were engineered for. At low speed, that motor is running around 1,250 RPM.

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9 months ago
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Answer: 
Brat,
Probably you unbalance the wheel taking the motor out, or the wheel was unbalance, if the wheel is old or has corrosion may be was unbalance. Replace the wheel (blower) with the same size and kind, be sure is the same: rotation, single or double inlet, diametric, width, hub, max rpm above 1600rpm (1725rpm), number of blades. Be carefully taking or installing the wheel, if the wheel is metal and you want to clean it, do NOT use water unless is plastic, just dust it with a paint brush and blow with air compressor. If the hub was to hard to take it out the shaft, there is a tool extractor for that.
Don't feel bad, this is a very common problem with an amateurs hvac guys.
9 months ago
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Answer: 
--1) Fan blade is out of balance. 2) Motor mounts are loose or broken. 3) Motor mounts rubber vibration washers are missing. 4) New motor is defective.
9 months ago
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There are floor vents for my heating/cooling system. Do you have a HEPA filter for the incoming air vent which is located in the floor of my home.
Gender: Female
Field of Industry:: retired
Product used for:: My home.
Years purchasing from Grainger:: N/A
2 years, 7 months ago
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GA
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Answer: 
We would need more information regarding what size filter your floor vent will accept. Most high efficiency air filter systems will need to be ducted from the return air grille to a filter housing connected to the furnace or air handler. You may want to call our HVAC tech support department at
1-800-225-5994.

Disclaimer:

"The source for the answers given by Grainger in Ask and Answer are based on the information provided with the question, which may not be complete or may not apply to other situations, and based on product literature and informational materials, the content of which is provided by Grainger’s product suppliers. Grainger disclaims liability for any information it provides in Ask and Answer which later may be alleged or determined by a court of law to be inaccurate or incorrect. The answers given by Grainger in Ask and Answer are not intended to replace or supplement any professional, engineering or other consultation services available to its product users. Always read, understand, and follow the product information and instructions provided by the manufacturer.
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Age: 35 to 44
2 years, 6 months ago
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Lincolnshire, IL, USA
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Answer: 
Trying to filter the air at the supply grille is almost imposible without restricting the airflow and making your system run a lot longer.
HEPA filtering requires air being pushed or pulled through a HEPA type filter and is usually done in the return air of the Indoor unit. Thats the prime location due to the force of the air being drawn in by the blower is at its peak.
If you decide to have a HEPA filter installed, have your system checked and cleaned first. If you use disposable, check them weekly at first because they will fill up quickest at first. Then longer as time goes by, and as your home's air cleans up.
2 years, 2 months ago
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2 years, 3 months ago
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Answer: 
There is not enough information provided to assist in finding a correct fitting. I would recommend calling our plumbing tech team to discuss the application in detail.
800-472-4643

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2 years, 2 months ago
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Answer: 
I think you might have better luck having a short hose manufactured at a local hydraulic hose store or tractor shop. It would be near impossible to bush this conversion, as you are probably talking very nearly the exact outside pipe diameters. You could the hose made with a metric pipe fitting on one side and standard on the other. if both pipes are rigid and you don't have room, consider making the hose 10" long, or so, and you can loop it if you are able to manipulate the pipe from side to side.
2 years, 2 months ago
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2 years, 2 months ago
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Answer: 
They are avalable from any HVAC supply house. They are made of something similar to chlorine bleach or pool tablets. The strips are really not a good idea unless they are being put in a large package unit. If you can re-pipe the primary condensate drain and install a Tee fitting with a cap, you could pour a mix of half bleach and half hot water in it every couple of months during the cooling season. This will kill the krud that grows in most all condensate drains. Never use drain cleaner in an a/c drain. The fumes could find their way into your return air and cause major problems.
2 years, 2 months ago
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Answer: 
I found them, FINALLY. Part number 4PDC4.
2 years, 2 months ago
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050422
2 years, 1 month ago
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Answer: 
We will require more information in order to answer your question properly. You will want to know the "uF" or MFD" rating on the capacitor as well as the voltage rating. If size is an issue you should include the shape (round or oval) and the dimensions of the capacitor.

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2 years, 1 month ago
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Answer: 
You need more numbers off of the old part. All capacitors have a rating of mfd or something else. Example is 45/440 mfd. Without the exact numbers, you must check the equipment specs. The wrong capacitor is almost worse than using a bad one. Either one can damage equipment.
2 years ago
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1/2" inlet and outlet
2 years, 1 month ago
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Answer: 
We have some hot water coils in the Grainger catalog on page 4401 of catalog 403. You can search this page on grainger.com by typing "page 4401" in the keyword box. However, there are none that match your specifications exactly. Also the coils we offer have 3/4" pipe connections. If one of these coils will not work in your application you may want to consider calling our HVAC tech team. With some information from your existing coil we may be able to find a manufacture we can order from. 800-472-4643

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2 years, 1 month ago
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Answer: 
check with Water Furnace, or other manufacturer. If it is some kind of project, you may think about using an automotive application. Those exchangers get very pricey due to materials used such as nickel alloys.
2 years ago
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1 year, 10 months ago
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Answer: 
Call a grainger representative and talk with them.
1 year, 7 months ago
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Answer: 
Grainger does carry them. I don't work for Grainger. I am a career HVAC guy who answers technical questions for them from time to time. As far as residential boilers go, it all depends on what size you need and what type fuel you are using for it. I have seen people use everything from wood burning boilers to oil and gas. Those things will determine what type you need and where you can get one.
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