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Progress has taken CAD drawings from an electronic extra to standard procedure. However, challenges -- and opportunities -- remain in the effort to make the most of the technology. In [...]

Helpful Hints * Consideration to equipment location should be given to locating onsite, possibly within a self-contained unit enclosure, vs. on the roof or within the building. * When considering [...]

Refer to this month and last month's 'Back to Basics' and 'HVACR Designer Tips' for additional information. Design Phase * Give consideration to completing a hydraulic model analysis of the [...]

The replacement and retrofit of a 400-bph hot water boiler with a 400-bhp firetube unit will be the focus of this month's 'Back to Basics' test and 'HVACR Designer Tips' [...]

Helpful Hints * Refer to this month's 'HVACR Designer Tips' for the project closeout checklist, as well as 'Application Checklist' for scoring the AHU replacement and retrofit sytem. * When [...]

* Refer to this month's 'HVACR Designer Tips' for the project closeout checklist, as well as 'Application Checklist' for scoring the chiller replacement system selection. * Most facilities do not [...]

* Integral to the long-term success of a building system is the initial commissioning process followed by proactive building management: The cornerstone to this-aggressive business plan is to have the [...]

Helpful Hints * Refer to this month's 'HVACR Designer Tips' associated with this chiller addition application. This month's 'Back to Basics' enhances April's test by focusing on how this new [...]

* Refer to this month's 'HVACR Designer Tips' for the central equipment checklist's assessment of a VAV (two-speed) exhaust system with gas-fired makeup air for heating and ventilating of the [...]

1 BAS COMPUTER TRENDING CHILLED WATER USAGE IN DOLLARS: The BAS computer shall collect pertinent electrical (energy, kWh, kW) consumption from electrical power panel EPPNL-1 and BAS control and metering [...]

1 HEAT RECOVERY UNIT (HRU-1) IN 'OFF' POSITION: OCCUPIED UNOCCUPIED CONTROL, IN THE 'OFF' POSITION: In classroom space with 100% outdoor air ventilation unit with energy recovery capabilities, HRU-1s and [...]

1 ENERGY CONSUMPTION TRENDING AT FANCOIL UNIT: The BAS computer shall provide energy consumption trending via energy meter transmitter EMT-1, located within fan-coil unit FCU-1 and shall send back (fan, [...]

Heating, ventilation and air conditioning repair (HVACR) managers must have good time management skills in order to manage a successful and profitable business. Only by minimizing trips to supply firms and service vans can a business achieve maximum profits. HVACR managers must be in control of both their own time and the time of others for whom they are responsible. There are a number of methods available to train HVACR service staff in time management skills including video and audio tapes., Successful hvacr management can be compared to directing traffic on a two-way street. The hvacr manager must keep the flow of traffic moving smoothly in both directions by directing from [...]

I have always and continue to enjoy Howard McKew's monthly contribution to Engineered Systems. The design-build articles he authored from the mid '90s through the early '00s remain informative for [...]

I'm a mechanical engineer currently working as the buildings management officer and deputy chief of plant engineering for the United Nations' New York headquarters facility. As a graduate of the [...]

I was watching a program on the Arts & Entertainment cable network recently, and the show highlighted Henry Ford's Fairlane Mansion. As I sat there with my laptop, getting ahead [...]

ANSWERS FOR HEAT RECOVERY OUTDOOR AIR VENTILATION UNIT IN CLASSROOM APPLICATION, BASIC SYSTEM--FUNCTIONAL PERFORMANCE TEST: increase; open; on; open; open; modulating speed; open; open; modulating [...]

This past year, our firm has had several requests to provide independent inspection of building systems. It seems to becoming a niche business for us, one based on client concern [...]

While providing commissioning services on a project recently, I took the opportunity to point out a few design issues to a couple of our 'younger' engineers relative to equipment room [...]

Time-of-day clock (TC-1) shall shutdown central AHU and its associated return fan during unoccupied cycle. Outdoor dampers D-1 (minimum ventilation) and D-4 (maximum ventilation) shall be closed, return air damper [...]

Focuses on William A. Berry & Son's facility audit in Sanford, Maine-based Goodall Hospital. Components of the audit format; Factors considered in assessing the operation and services department; Findings and recommendations; Benefits on hospital operation.

Discusses the application of computer maintenance management system (CMMS) and direct digital control (DDC) in facilities management. Obstacles preventing a CMMS from connecting to a BAS; Disadvantages of system integration.

Discusses the installation of a direct digital control (ddc) building automation system in the Majestic Theatre of Boston's Emerson College. Financial solution for the improvement of the mechanical and electrical building systems; Required documents to provide an acceptable proposal for the grant providers; Evaluation of the energy-conservation opportunities for the theater by Berry & Son. INSET: More about Majestic Theatre, Emerson College..