C408.1
General. A building commissioning process led by a
certified commissioning professional and functional testing
requirements shall be completed for mechanical systems in Section C403; service
water heating systems in Section C404; controlled receptacle and lighting
control systems in Section C405; equipment, appliances and systems installed to
comply with Sections C406 or C407; energy metering in Section C409; and
refrigeration systems in Section C410.
EXCEPTION:
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Buildings, or portions thereof, which are exempt from
Sections C408.2 through C408.7 may be excluded from the commissioning
process.
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1. Mechanical systems that are not required to comply
with Section C403.3.5 are exempt from the commissioning process where the
installed total mechanical equipment capacity is less than 180,000 Btu/h (15
tons) cooling capacity and less than 240,000 Btu/h (20 tons) heating capacity
and energy recovery ventilation (ERV) equipment is less than 300 cfm
capacity.
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2. Service water heating systems are exempt from the
commissioning process in buildings where the largest service water heating
system capacity is less than 200,000 Btu/h and where there are any of the
following:
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2.1. No pools or permanent spas.
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2.2. No solar thermal water heating.
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2.3. No recirculation pumps.
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2.4. No heat pump water heaters, except fully-packaged
for individual residential dwelling unit use.
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3. Lighting control systems are exempt from the
commissioning process in buildings where both the total installed lighting load
is less than 10 kW and the lighting load controlled by occupancy sensors or
automatic daylighting controls is less than 5 kW.
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4. Refrigeration systems are exempt from the
commissioning process in buildings if they are limited to self-contained
units.
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C408.1.1
Commissioning in construction documents. Construction documents shall
clearly indicate provisions for commissioning process. The construction
documents shall minimally include the following:
1. A narrative description of the activities
that will be accomplished during the commissioning process. At a minimum, the
commissioning process is required to include:
1.1. Development and execution of the
commissioning plan, including all subsections of Section C408.1.2;
1.2. The certified commissioning
professional's review of the building documentation and close out
submittals in accordance with Section C103.6; and
1.3. The commissioning report in accordance
with Section C408.1.3.
2.
Roles, responsibilities, and required qualifications of the certified
commissioning professional.
3. A listing of the specific equipment,
appliances, or systems to be tested.
C408.1.2
Commissioning plan. A
commissioning plan shall be developed by the project's
certified
commissioning professional and shall outline the organization,
schedule, allocation of resources, and documentation requirements of the
commissioning process.
1. A narrative
description of the activities that will be accomplished during each phase of
commissioning, including the personnel intended to accomplish each of the
activities, systems testing and balancing, functional performance testing, and
verification of the building documentation requirements in Section
C103.6.
2. Roles and
responsibilities of the commissioning team, including the name and statement of
qualifications of the certified commissioning
professional.
3. A listing
of the specific equipment, appliances or systems to be tested and a description
of the tests to be performed.
C408.1.2.1
In-house commissioning
disclosure and conflict management plan. Where the certified
commissioning professional's contract or employment is other than
directly with the building owner, an in-house commissioning disclosure and
conflict management plan shall be a part of the commissioning process. A copy
shall be included in the commissioning plan. This plan shall disclose the
certified commissioning professional's contractual
relationship with other team members and provide a conflict management plan
demonstrating that the certified commissioning professional is
free to identify any issues discovered and report directly to the
owner.
C408.1.2.2
Functional
performance testing. Functional performance testing shall be conducted
for mechanical systems in Sections C403; service water heating systems in
Section C404; controlled receptacles and lighting control systems in Section
C405; equipment, appliances, systems installed to comply with Section C406 or
C407; energy metering in Section C409; and refrigeration systems in Section
C410. Written procedures which clearly describe the individual systematic test
procedures, the expected system response or acceptance criteria for each
procedure, the actual response or findings, and any pertinent discussion shall
be followed. This testing shall include control systems which will be tested to
document that control devices, components, equipment, and systems are
calibrated and adjusted to operate in accordance with approved construction
documents. Testing shall affirm the conditions required within Sections C408.2
through C408.7 under system testing.
C408.1.2.3
Functional performance
testing - Sampling. For projects with 7 or fewer similar systems, each
system shall be tested. For projects with more than 7 systems, testing shall be
done for each unique combination of control types. Where multiples of each
unique combination of control types exist, no fewer than 20 percent of each
combination shall be tested unless the code official or design professional
requires a higher percentage to be tested. Where 30 percent or more of the
tested system fail, all remaining identical combinations shall be
tested.
C408.1.2.4
Deficiencies. Deficiencies found during testing shall be resolved
including corrections and retesting.
C408.1.3
Commissioning report. A
commissioning report shall be completed and certified by the
certified
commissioning professional and delivered to the building owner or
owner's authorized agent. The report shall be organized with mechanical,
service water heating, controlled receptacle and lighting control systems,
energy metering, and refrigeration findings in separate sections to allow
independent review. The report shall record the activities and results of the
commissioning process and be developed from the final commissioning plan with
all of its attached appendices. The report shall include:
1. Results of functional performance
tests.
2. Disposition of
deficiencies found during testing, including details of corrective measures
used or proposed.
3. Functional
performance test procedures used during the commissioning process including
measurable criteria for test acceptance, provided herein for
repeatability.
4. Commissioning
plan.
5. Testing, adjusting and
balancing report.
EXCEPTION:
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Deferred tests which cannot be performed at the time of
report preparation due to climatic conditions.
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C408.1.4.
Commissioning process
completion requirements. Prior to the final mechanical, plumbing and
electrical inspections or obtaining a certificate of occupancy, the
certified commissioning professional shall provide evidence of
building commissioning in accordance with the provisions of
this section.
C408.1.4.1
Commissioning
compliance. Buildings, or portions thereof, shall not be considered
acceptable for a final inspection pursuant to Section C104.2.6 until the
code official has received a letter of transmittal from the
building owner acknowledging that the building owner or owner's authorized
agent has received the Commissioning Report. Completion of Commissioning
Compliance Checklist (Figure C408.1.4.1) is deemed to satisfy this requirement.
Phased acceptance of Commissioning Compliance Checklist for portions of the
work specific to the trade that is being inspected is permissible where
accepted by the code official and where the certified
commissioning professional remains responsible for completion of the
commissioning process. If there are unresolved deficiencies when the final
inspection is scheduled, the Commissioning Report shall be submitted and shall
describe the unresolved deficiencies.
C408.1.4.2
Copy of report. The
code official shall be permitted to require that a copy of the
Commissioning Report be made available for review by the code
official.