130823 discrepancies and mistakes in tenant mep design

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DISCREPANCIES AND MISTAKES IN

TENANT MEP DESIGN

By: David Hakim

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DISCREPANCIES AND MISTAKES IN TENANTS MEP DESIGN

HVAC COMMON ISSUES:

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• WRONG HVAC SYSTEM (RTU INSTEAD OF CHILLED WATER OR VAV, etc.)

• VAV SYSTEM DESIGN FLAWS:o IGNORING TRANSFER AIR OPENINGo REQUESTING MORE AIR THAN WHAT LOAD CALCS SUPPORT

• CHILLED AND CONDENSER WATER SYSTEMS: o AHU WRONG DELTA “T”.

• FC THERMAL EXHAUST SYSTEM, TENANT DESIGN COMPLICATION

• SPLIT SYSTEM (BASE BUILDING ISSUES)o REFRIGERANT LINE LENGTH PROBLEM (150 FT MAX)o OUT SIDE AIR ECONOMIZER MODE

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• WRONG HVAC SYSTEM (SPLIT INSTEAD OF CHILLED WATER).

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RTU IN STORE THAT IS LOCATED IN LOWER LEVEL

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TRANSFER AIR OPENINGS PROBLEMS

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DISCREPANCIES AND MISTAKES IN TENANT MEP DESIGN

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•CHILLED AND CONDENSER WATER SYSTEMS: AHU COIL WRONG DELTA “T”.

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04/12/23 7FC THERMAL EXHAUST SYSTEM, TENANT DESIGN COMPLICATION

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• SPLIT SYSTEM (BASE BUILDING ISSUES)o REFRIGERANT LINE LENGTH PROBLEM (150 FT MAX)o OUT SIDE AIR ECONOMIZER MODE

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ELECTRICAL SERVICE VOLTAGE:

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TWO ELECTRICAL SERVICES IN ONE SPACE:

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SECOND FLOOR RESTAURANTS START AFTER FIRST FLOOR RETAILERS OPENED FOR BUISINGESS

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DISCREPANCIES AND MISTAKES IN TENANTS MEP DESIGNCONCLUSION . . .

THANK YOU.

130823 discrepancies and mistakes in tenant mep design

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