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Chaska, MN, United States

Ellis R.T.,Questions and Solutions Engineering Inc.
Engineered Systems | Year: 2011

Several measures that need to be considered in defining measurable accessibility acceptance criteria early in the building design phase are presented. Most project specifications require that all equipment be installed per the manufacturer's installation instructions. It might be enough to define accessibility requirements in terms of clearances around the equipment. The manufacturer's installation manual should be able to define the accessibility requirements if the controls are manufacturer provided and factory-mounted. It is important to remember that if a device needs to be serviced from above or below, the side clearance is critical in order to allow a maintenance person to actually get to the above or below clear. A vertical clear path needs to be maintained for personnel to access the side of the device if a device only needs service from the side. Another quantitative requirement to consider is distance from the floor.


Ellis R.T.,Questions and Solutions Engineering Inc.
Engineered Systems | Year: 2011

Commissioning professional need to follow several measures to ensure that system function properly and are accurately documented at the end of construction. The commissioning professional focus on to demonstrate compliance with the design requirements, knowing that work may be of diminished value when the owner changes the system operation after accepting the building. The commissioning professional help the owner push for changeorders to achieve the preferred facility operations system performance. The operations department may need to defer their modifications until after accepting the systems as designed if the owner's project manager's main priority is an onbudget/on-schedule project. Commissioning of the modifications could help ensure that whatever changes the owner makes don't affect the performance of other integrated building systems.


Ellis R.T.,Questions and Solutions Engineering Inc.
Engineered Systems | Year: 2011

The role of several project team members responsible for commissioning testing or periodic maintenance and repair of an equipment is presented. The owner/operator needs to make sure that reasonable equipment accessibility is part of the owner's project requirements (OPR). The design team needs to specify accessibility in quantifiable, verifiable, and enforceable terms in the contract documents. The construction team needs to take accessibility seriously and work closely with each other to coordinate equipment and control device locations with ductwork, piping, conduit, and ceiling grids that surround the components need to be accessed. The commissioning professional should be responsible for observing and documenting accessibility issues as early in the construction process as possible. The owner/operator and design team should be responsible for rigorously enforcing the specified accessibility requirements.


Schlueter P.,Questions and Solutions Engineering Inc.
Engineered Systems | Year: 2011

The team with the best game plan and best execution of that plan usually wins in the market. Considerable effort occurs, sometimes many days in advance, reviewing scouting reports, analyzing game films, and putting together a customized strategy that will increase the chance for success. Bringing the commissioning team together early in the planning stage allows expertise from all fields to be involved in the design process. The contractors need to be brought up to speed on the design and encouraged to provide input and suggestions on how best to deliver that design. Having a commissioning team available to consult when difficult situations arise during construction is many times the most productive and effective way to resolve problems and keep the project moving forward.


Ellis R.T.,Questions and Solutions Engineering Inc.
Engineered Systems | Year: 2010

Some Building Commissioning Association's (BCxA) essential attributes of building commissioning are addressed. The Commissioning Authority (CA) recommends the commissioning roles and scope of all members of the design and construction terms. The roles and scope are defined in each design consultant's contract, the construction manager's contract, general conditions of the specification, and the specifications for each system and component for which the suppliers' support is required. If commissioning is introduced after the general contractor and subcontractors have been awarded the project, the owner faces a challenge of negotiating the value of services considered by the bidders. Each project is commissioned in accordance with a written commissioning plan that is updated as the project progresses. The commissioning plan identifies the systems to be commissioned, defines the scope of the commissioning process, and estimates the commissioning schedule.

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