A Trusted
Steam Specialist

Success Story

Precision Equipment Improves Air Handling Unit

Correct Steam Traps & Pressure Power Pumps Keeps the OR AHU Running at Royal Columbian Hospital.

The Royal Columbian Hospital is the oldest hospital in the Canadian province of British Columbia and one of the busiest in the Fraser Health Authority. Royal Columbian Hospital is a major tertiary care facility known for trauma care, neurosurgery, and open-heart surgery.

The operating rooms require 100% make up air and a project to upgrade the air system with a new energy efficient one was undertaken with a new rooftop AHU installed. Problems arose on the shoulder seasons with the freeze stats shutting down the air handler under certain outside air conditions. A call was made to Andrew Reynolds to investigate and provide a solution. Upon investigation two major issues were discovered. The steam coil selection was correctly chosen to be freeze proof tube with a tube design, however the 1 ¼” tubes as per the performance data were actually constructed as 5/8” tubes. Secondly, the condensate would backup in the tubes due to lack of vacuum breakers, undersized steam traps and back pressure on the condensate system.

The solution was to replace the freeze proof tube with the correct size, install vacuum breakers, correctly size the steam traps and have a steam powered condensate pump return condensate back to the boiler room.

The results are the AHU now runs under all load conditions and the freeze stats not locking out the system. Chris Nicol from Fraser Health reports the system is performing consistently and reliably.


Did You Know?
Benchmark the Fuel Cost of Steam Generation

Benchmarking the fuel cost of steam generation, in dollars per 1,000 pounds ($/1,000 lb) of steam, is an effective way to assess the efficiency of your steam system. This cost is dependent upon fuel type, unit fuel cost, boiler efficiency, feedwater temperature, and steam pressure. This calculation provides a good first approximation for the cost of generating steam and serves as a tracking device to allow for boiler performance monitoring.

About Us

Client Testimonial

I have worked with Andrew for a number of years on many successful steam heating and condensate recovery projects in the Fraser Health Authority. I have found him to be an excellent resource on steam systems and he is always willing to share his knowledge. He presented a full day seminar on steam topics to our operating engineers which was well received. Andrew has participated in many BC CHES Trade Shows and has also been a guest speaker. I would not hesitate to recommend Andrew to help you with any of your steam system requirements.