Skip to Content

HVAC swimming pool design

Did you know that the HVAC equipment for indoor pool applications should not be installed directly above the swimming pool area? Warm moist air, which might contain airborne chemicals like chlorine, could migrate into the system causing operational problems and premature failure. For more information on HVAC swimming pool design, see the attached “Swimming Pool Design Guide”
Read More…

How do you select and design a custom coil replacement?

Here is a step-by-step process for replacing a custom coil and A) Making sure it fits and B) Making sure it works.Step #1: Gather the physical coil dimensions (more info will be needed at coil verification measure)Tube size (typical: 3/8″, 1/2″, 5/8″, or 1-1/8″)Number of Rows (1 or 2 rows typical for heating, 3-8 rows typical for cooling)Fins per
Read More…

How do you fix a humidity problem?

Humidity, the 8th wonder of the world, is a tough nut to crack. Unlike sensible heat transfer, it’s very difficult to measure its movement into buildings through cracks, doorways, and other openings.But, there are ways to combat these higher than expected humidity levels.Here are 11 ways to decrease the relative humidity in your space. The answer could be one of
Read More…

How many tons of air conditioning is this DX or Chilled Water coil?

If you are measuring a Direct Expansion (DX) or Chilled Water coil in the field, or just quoting a replacement coil, you can quickly estimate its nominal tonnage based on the square footage of the FIN area of the coil. This is a useful “rule of thumb”, which will help ensure that you have all the
Read More…

How much system water per ton of cooling for process chillers?

Did you know that York recommends a MINIMUM of 6 gallons of system water per ton of cooling for process chillers? This is double the amount of water that York recommends for standard air conditioning or comfort cooling applications. See the attached engineering supplement from York for more details!Related Posts:What type of chiller is ideal for
Read More…

Are rooftops a commodity? Maybe.

Are rooftops a commodity?Maybe.But there is a lot to think about when replacing an existing unit, or doing a design/build job.Is quick and easy access important? Maybe we should look at a unit with hinged and toolless access and a slide out blower. Is comfort critical? Maybe we should look at more cooling stages and
Read More…

EER, IEER, SEER, IPLV, HSPF… What do all of these efficiency terms REALLY mean

EER, IEER, SEER, IPLV, HSPF… You have probably seen all of these terms before and never even thought of what the heck they stand for, or why you would care to look at one over the other. In order to look out for the best interest of the building owner, however, it is important that
Read More…

2018 Show-Me Green Sales Tax Holiday

We are excited to announce Missouri’s 2018 Show-Me Green Sales Tax Holiday! The Show-Me Green Sales Tax Holiday runs from April 19th-25th. People who purchase new ENERGY STAR® qualified appliances in Missouri during the holiday will not have to pay STATE sales tax (4.225%) on their purchases. ENERGY STAR®-labeled appliances from cfm that qualify for
Read More…

cfm Tech Tips – Operating and Troubleshooting Furnace Pressure Switches

Beginning January 1, 1992, all furnaces were manufactured with an integrated furnace control board, often referred to as FCB (Furnace Control Board). The FCB manages all operation requirements of the furnace. Fault and Information codes are displayed by one or more LEDs on the board. The FCBs used by York/JCI have the ability to store
Read More…

This commercial energy management controller will blow your mind!

When building owners and operators are looking for a control system that will help their rooftops and split systems run more efficiently and will save them time & money, they are turning to ecobee. Ecobee has a very unique way of simplifying the user experience so much, that controlling your HVAC equipment has never been
Read More…
Back to blog
Back to top