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Frequently Asked Questions

Question: What's the big deal about 160°F temperature rise/discharge temperature?

Cambridge Engineering FAQs | Gas-Fired Heaters
Answer: It is the industry's highest rating for this type of space heating equipment and allows us to deliver the maximum amount of heat with the minimum amount of outside air. The maximum 160°F temperature rise/discharge temperature rating is crucial because it translates into lower horsepower motors, less outside air and reduced energy costs.

Question: Will 160°F discharge air stratify?

Cambridge Engineering FAQs | Gas-Fired Heaters
Answer: Due to our high velocity discharge air, we are able to drive the heat to the floor resulting in a rapid mixing with surrounding air. Floor to ceiling variation typically does not exceed 3° F to 7° F. Our Building Study Program has confirmed this with real data at existing Cambridge installations.

Question #4: What is a temperature rise door?

Untitled Document
Answer: Temperature rise doors are used in stairwells. In the case of fire on one side of the door, the unexposed side of the door must remain below 450 degrees F for 30 minutes. This type of door is required on all fire rated stairwell doors (SBC 705.1.3.4). The reason for this requirement is to protect escaping occupants. A standard metal door exposed to fire can reach 1200 degrees F on the unexposed side, and this amount of heat could cause clothes on an exiting occupant to catch on fire.

If the fluid temperature exceeds 150°F what pump should be used?

All-Flo Pumps | Frequently Asked Questions
ANSWER: Pumps that are rated up to 200°F are the PVDF models and all of the metal pumps. Check your chemical compatibility chart for compatibility.

QUESTION #7: How long do I treat very cold water (35° F for example)?

FAQ
ANSWER: Lower temperature water treatment times have not been determined for EPA approval at this time for any chemical water disinfectant products. Our suggestion is to warm the water to be treated to 68° F if possible. When camping in cold conditions, water to be treated can be warmed by keeping the bottle close to your body, either in your jacket or sleeping bag.

All of my ovens read very low, about 34°F to 45°F. Why?

Digitry Company - Temperature Controllers
Answer: A GB4 or GB5 has an internal power supply for its Sending Units. This power supply protects itself from external short circuits by shutting down almost completely, causing a low reading on all channels, even though only one may be shorted out. Since this reading is below any reasonable setpoint, a running unit would remain on continuously, trying to attain its setpoint.

Why does the system (and component) temperature sometimes rise?

Acousti Products - FAQ's
Acoustic foams, which are thermally insulating - may act to insulate components so that heat is not so easily transmitted to the case sides and top and bottom for dissipation to the outside. This may cause slight increases in temperature. The configuration of the materials around the case interior and components may also be such that airflow pathways become more tortuous. This is only likely where materials have been fitted incorrectly so that they obstruct airflow - which is NOT recommended.

What is meant by a transformer's temperature rise?

Frequently Asked Questions - Jefferson Electric
A transformer’s rated temperature rise (degrees Celsius) is the average temperature of the transformer’s windings over an ambient temperature of 40°C. In other words, the average winding temperature = ambient temperature rise.

How do I know when the temperature rise is too high?

Frequently Asked Questions - Jefferson Electric
Touch is a poor indicator of proper transformer operating temperature. Properly designed transformers can reach 50°C (122°F) above ambient temperature. In an ambient temperature of 20°C (60°F), the total temperature can reach 70°C (190°F), which is too hot to touch. Thermometers are the best way to determine the temperature.

How many states have never recorded a temperature below 0°?

USATODAY.com
Just one – Hawaii. The lowest temperature ever recorded in Hawaii was 12°, measured on May 17, 1979, at the Mauna Kea Observatory on the Big Island. Most states have record lows well below 0°, except for Florida, which has an all-time low of -2°. That record was set in Tallahassee on Feb. 13, 1899. For each state's all-time low temperature record, check out this USA TODAY resource page. Another good reference for weather records is Christopher Burt's book Extreme Weather.

Q.    Question 10 on the review sheet is referring to which diseases specifically?

MBI 111 FAQ (Frequently Asked Questions)
A.    I would know what each microbe is is doing to cause damage. Is there a toxin, what does it do, is the organism invasive, etc.

F.  Is Crouzon Syndrome fatal?

Crouzon Support at AboutFace USA - FAQ
Not as such.  The premature fusion of sutures can cause life-threatening damage, but advances in surgical technique have significantly reduced the inherent dangers.  With rare exceptions, Crouzon Syndrome does not interfere with basic body processes and should not reduce one's lifespan.

How can I convert degrees Celsius (°C) to degrees Fahrenheit (°F) or vice versa?

Weatheroffice Frequently Asked Questions - Environment Canad...
The conversion formula is ?F = ?C x 9/5 + 32 or, in reverse, ?C = (?F - 32) X 5/9 . The formula also appears on this page. The "knot" is the unit used to describe the speed of the wind in Canadian marine forecasts. It is a measure of the wind speed in nautical miles per hour. One nautical mile is equal in distance to 1.852 kilometres.

Why is stroke such a big deal?

Sandy Simon - Frequently Asked Questions About Stroke
Stroke will cost an estimated $54 Billion this year in America alone in direct costs for the more than 4 million Americans who live with stroke, and costs for the 750,000 who will suffer a severe stroke. Loss of jobs, productivity and impact on businesses, colleagues, friends and increase the costs even further.

Is oral health really that big a deal?

Health Fund Oral Health Grants Availability and Information
Those that do not realize what a toll poor oral health takes on a community probably have either not ever endured severe dental problems, or have always had dental services readily available. That just isn't the case for way too many. Oral health problems affect the ability of children to learn, for example. On a national basis, 52 million school day hours are lost annually because of dental issues. And in the workplace, adults triple that amount of lost time due to poor oral health.

Why is this such a big deal?

Incoming President's Address, presented at MUWAA Business Me...
It may sound simple, but autonomy is important to any alumni group. The university should not have the right to choose the officers or tell the association how to conduct its business. Yet that's just what Limbert is doing.

What is a temperature rise door?

Georgia-Pacific Building Products FAQ - Frequently Asked Que...
A fire door that by code, meets a maximum unexposed surface temperature requirement at a specified time interval during the fire test. (i.e. 250 deg @ 30 minutes)

My unit burns low or won't burn long when it is below 40°F outside. Why is this?

Portable Heater Frequently Asked Questions: PatioHeater.info
Propane needs to be at its boiling point to give the best output. At or below 40°F propane starts to liquefy and will not give good performance.

All of a sudden one of my ovens reads 32°F. Why?

Digitry Company - Temperature Controllers
Answer: Assuming the other channels are working correctly, the most likely cause is that one or more of the wires between the Sending Unit and the GB4 or GB5 is either broken or disconnected. A less likely possibility is that the Sending Unit itself is defective.
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