Selecting Air Vents For Hydronic Systems With Glycol
Sometimes simple things can slow you down in the design of hydronic heating and cooling systems. Air vents for use in water and glycol systems …
HVAC Magnetic Meters and Pipe Diameters: Installation Tip
Mechanical rooms seem to get tighter every year. The engineer begs for space, but in the end, the mechanical room piping is very tight. Now …
Variable Speed Hydronic Pump Selection – Should I Specify the Largest Impeller?
We recently received an inquiry from an engineering firm deciding whether to change their pump schedule. They currently select the pumps at design capacity and …
A Mobile App for Domestic Hot Water Recirc. & Residential Circulators
Someday, there will be a mobile app that can provide a warning when your domestic water and/or residential heating pumps stop working. For smaller gallon …
Boiler Safety: CSD-1 Emergency Shut-off Switches
The ASME CSD-1 Controls and Safety Devices for Automatically Fired Boilers is a standard for many State codes including Michigan and Ohio. This standard exists …
Variable Speed Chilled Water Systems: Demand Reset
There are multiple methods to vary pump speed in HVAC chilled water systems. A common method is the use of a differential pressure transmitter at …
Shell & Tube Heat Exchanger – Leaking Gaskets
Shell and tube heat exchanger leaks can be very frustrating. Occasionally we receive a call from a frustrated contractor who swears he installed the heat …
Cooling Tower Design to Save the Planet: Part 4 of 4 – Something for Everyone
New water-saving and energy-saving cooling tower designs come with concerns about change. From the owner to the engineer to the contractor, the question becomes, “Why …
Cooling Tower Design to Save the Planet: Part 3 of 4 – Save Energy
We understand the tremendous water savings available with the information provided in Part 1 & Part 2 of this cooling tower series. There is more …
Cooling Tower Design to Save the Planet: Part 2 of 4 – Cycles of Concentration
The combination of water usage and energy usage in open loop cooling towers are a significant cost to owners. Owners are faced with tremendous water …