this is methodology for taking over new building

1. General Guidelines for Handing over
& Taking over

2. Utility requirement– Electrical systems.
Un interrupted power supply is a critical factor in any building
whether it is a residential building ,software hub or
commercial building for fail free operations
For achieving this the transformer capacity , DG set capacity
and LT panels to be designed such that there must not be any
power interruption at any time to the facility
Transformer and DG set to be designed for 200 % of load so
that standby equipment is always available
Critical panel supply to be supplied from 2 different sources

3. Other Utility requirement
Lifts
UPS
Plumbing system
HVAC system
STP, WTP
Waste management
Fire Hydrant system
Security surveillance system

4. What is building commissioning?
Commissioning is the process of ensuring that
systems are designed, installed, functionally tested,
and capable of being operated and maintained to
perform in conformity with the design intent.
Building Commissioning is a systematic and
documented process of ensuring that the owner’s
operational needs are met, building systems perform
efficiently, and building operators are properly
trained.

5. What is the goal of building commissioning
To deliver a facility that operates as it was intended.
To provide a facility that meets the needs of the building owner
To provide appropriate training for facility operators on the operation
Benefits of building commissioning process starts early
Design review.
Better building commissioning specifications.
Clear building commissioning expectations.
Better bids.

6. Commissioning agency selection
Commissioning agency experience
Their profile
Their exposure to same type of industry
Their previous record in same type of industry
Competitive pricing with out compromising on
quality
Quality of commissioning
Client list and client feed back

7. Commissioning agency requirement
Acted as the principal Commissioning Agent for at least three projects
of comparable size, type and scope.
Extensive experience in the operation and troubleshooting of HVAC
system
A minimum of five full years in this type of work is required.
Knowledgeable in building O&M training.
Knowledgeable in national building & fire codes
Experienced in energy-efficient equipment design and control strategy
optimization.

8. .
Commissioning Handover and take over
By external team By internal team
This will be done by
common guidelines and
standard procedure
This will done as per
requirement of the facility
team and more effective
and maintenance friendly
They may not be
understanding facility
requirement and
operational friendly
Hence our team is already
having operation exposer
they will demand what they
require
It is better to go with internal facility team if available
which has got familiarity in existing operation challenges

9. Both GSA & ORAT recommends the facility team
to be consulted at the design time itself
• Facility team to be consulted from design stage and there
after can be consulted if required by the design team
• Facility team or any other external team can be used for
commissioning and testing
• In normal cases if facility team available it is better to go with
internal team for commissioning & testing
• Facility should not involve in project activity and not to give
snag report until the project takes proper shape and nearing
completion
• But the pre commissioning, commissioning and testing should
only done with coordination with Facility only

10. Benefits of Commissioning of Buildings with
facility team and according to building
guidelines
• Improved building operation and maintenance
• Improved building occupant productivity
• Increased occupant safety
• Improved system and equipment function
• Better building documentation
• Shortened occupancy transition period

11. Commissioning and Testing
• Commissioning and testing to be done stage by stage with Facility
team
• Each component to be tested then and there it is completed, and not
to wait for all components to be completed (For ex. If Fire hydrant
system is completed that can be tested with commissioning team and
can be handover)
• Testing and commissioning to be done before vendor leaves the
project site for carrying out any modification. (For ex. Pipe line welding
or new drain line provision)
• Repeated test to be done till the facility team is satisfied and got
familiarized (For ex. LT panel auto change over & DG sync panel)

12. Commissioning stages
Pre-commissioning - Making the system and/or equipment's
ready for putting into service.
Commissioning - Is putting into service.
Testing -Performance as required by owner
Rectification - Minor changes ,modifications
Re-testing - After attending to issue
Documentation -Differed test ,snag points to
be signed by project and facility

13. Example for Commissioning stages
Here we have taken Commissioning of AHU as an
example for better understanding of Commissioning plan
AHU Commissioning can be easily understandable for all
people engaged in erection and Commissioning team
irrespective of their profile and area of work
And it has all components like mechanical ,electrical and
instruments and interlocks
It doesn't need spinalization any in a field to understand
the procedure

14. AHU Commissioning stages
PRE- COMMSIONING
Installation of AHU and positioning
Chilled water line connection including valves and actuator
Electrical connection and termination with VFD
BTU meter fixing and lining up
Actuator fixing and wiring with temperature control
Fresh air and exhaust air blowers lining up
Co2 detector fixing and lining up
All louvers checking

15. AHU Commissioning stages
COMMISSONING
Totally cleaning the surrounding area and filters
Switching on the power supply
Motor starting and speed checking
Opening the chilled water flow
Adjusting the dampers
Starting the fresh air and exhaust air blowers
Checking the temperature monitor and co2 level

16. TESTING RECORDS
Test data records capture outcomes of functional
performance testing including
• Test reference (number, specific identifier, etc.)
• Date and time of test
• First test or re-test following correction of an issue
• Identification of the systems under test including
location and construction document
• Conditions under which the test was conducted
• Expected performance
• Issues generated as a result of the test
• Dated signatures of those performing and witnessing the
test reports.

19. AHU Commissioning stages
TESTING
All test to be done with check list
Air flow velocity and adequacy
Vibration or noise in AHU
BTU meter temperature with actual temperature
BTU meter flow and actuator closing as per set temperature
AHU motor VFD speed as per the set temperature
Fresh air and exhaust air blower speed as per the CO2 level
Occupant area temperature is adequate
Temperature gauge & pressure gauge showing correct value

20. AHU Commissioning stages
Rectification
Any abnormalities to be set right like vibration to be
attended
Any deviation with normal parameter to be set right like
temperature flow and co2 level
Any non operating mechanism to be made functional like
louvers
Any control loop is not responding to be checked VFD
speed control and actuator controls

21. AHU Commissioning stages
Retesting
Observed Abnormalities to be rechecked after attending
the issue
Observed deviation to be rechecked after attending the
issue (temperature co2 level)
Observed non operating mechanism to be rechecked after
attending the issue (louvers)
Observed non responding control loop to be rechecked
after attending the issue (VFD speed control and actuator
controls)

22. DIFFERED TEST
• Due to weather conditions, not all systems can be tested at or
near full load
• Allow for testing of certain equipment under the best possible
conditions
• The initial testing for a number of reasons including
prerequisite activities not complete, phased occupancy issues
and improper testing conditions.
• Re-inspect/Review Performance before End of Warranty Period
• Identification of systems or assemblies that do not perform in
accordance with Project Requirements

23. AHU Commissioning stages
Differed Test
Differed test to be logged with reason
Seasonal test – can not be performed due to climate
condition (AHU full capacity can not be checked during
winter)
Occupancy capacity – C02 level and fresh air fan can not
be checked with out full occupancy
Requirements for deferred and seasonal testing must be
clearly defined in the contract documents as it will require
some contractor personnel to return to the site after the
project is completed.

24. AHU Commissioning stages
Documentation
After re testing documentation to be done with check list
Any parameter which is out of allowable tolerance limit to
be recorded
Differed test to be mentioned with reason
All the documents to be signed by project and
commissioning team.

25. Training must specifically address:
• Step-by-step procedures required for normal day-to-day
operation of the facility
• Adjustment instructions including information for
maintaining operational parameters
• Troubleshooting procedures including instructions for
diagnosing operating
• Maintenance and inspection procedures
• Repair procedures including disassembly, component
removal and replacement
• Emergency instructions for operating the facility during
various nonstandard

26. Statutory requirement
• All the statutory documents to be processed by
project team for operation before HOTO
• The documents to be for minimum one year of
operation
any statutory documents which or not obtained or
delayed to be informed to facility team
• The required fund for getting statutory approval to
be allotted from project funding
• Any statutory document to be done then and there
will be taken care of facility

27. Warranty
During the first year of the building’s operation it is important
to assure that the performance of the system is maintained,
particularly before the warranty period expires.
Facility to identify any items that must be repaired or
replaced under warranty.
Warranty items performance to be with Owner’s Project
Requirements.
Discrepancies between predicted performance and actual
performance if observed may indicate a need for minor
system modification.

28. Warranty
During the first year of the building’s operation it is important
to assure that the performance of the system is maintained,
particularly before the warranty period expires.
Facility to identify any items that must be repaired or
replaced under warranty.
Warranty items performance to be with Owner’s Project
Requirements.
Discrepancies between predicted performance and actual
performance if observed may indicate a need for minor
system modification.

29. Complete Final Commissioning Report
A statement that system completed in accordance with the contract
documents that the systems are performing in accordance with the
final owner's Project Requirements document
Identification and discussion of any substitutions, compromises
Description of components and systems that exceed Owner’s Project
requirements and those which do not meet the requirements
Summary of all issues resolved and unresolved and any
recommendations for resolution
Post-Construction activities and results including
Deferred & seasonal testing results,

30. Conclusion
When any building is to be handed over to facility all the
equipment's to be in good working condition
All the facility team to be trained and made familiar with the
system
Full vendor support must be available for the facility to
operate
The project to facility transition to be smooth and hassle free
Minimum required spares to be with facility for maintenance
Any differed test not completed to be finished before HOTO