Group Co – Consultant Engineering
Solutions & Construction Management in
Nader Peyman is Principal Mechanical Engineer and founder of Peyman Group. He
has a Master’s degree in Mechanical Engineering from CSU Fullerton, and P.E.
license in the state of California. He is LEED AP BD+C with more than 20 years
of experience as a Mechanical Engineer. He is a member of American Society of
Heating Refrigeration, and Air-Conditioning (ASHRAE), and a member of United
States Green Building Council (USGBC).
He has designed and managed Mechanical Projects for various types of
buildings. He has held quality assurance, quality control for different
He has variety of design experiences for different Mechanical systems including
but not limited to the designs of:
Boilers; Chilled Water System; Chillers, including air cooled chillers and water
cooled chillers; Cooling Towers Including Closed loop and Open loop systems;
Different kinds of Air handling Units including: Multi-zone Air Handling Units,
Gas/ Electric AHUs, Variable Air Volume (VAV) Systems, Variable Valium Variable
Temperature (VVT) Systems; Direct Digital Control Systems (DDC); Energy
Management System (EMS) Controls; Evaporative Cooling Systems including Direct
and Indirect Evaporative Coolers; Flour Mounted Air conditioner unit; Heat
Pumps; Heating Hot Water System, and Boilers; Hydronic Systems; Package Unit Air
Conditioners; Title 24 and Load Calculations; Variable Refrigerant Flow (VRF)
Split Systems; Ventilation Systems; Wall Mounted Gas/Electric or Heat pump
Air conditioner; Water Source Heat Pump Systems; Booster Pumps;
Compressed Air Systems including different types of compressors, air
dryers, filters and piping; Condensate Drain Pumps; Domestic Water and
Reclaimed Water Systems Distribution; Domestic Water heaters, and
Boilers; Grease Interceptors; Grease waste Systems; Lint Interceptors;
Lubricant Oil Distribution; Misting Systems; Natural Gas Distribution;
Oil Water Separators; Pumps; Rainwater Systems; Sewage Ejectors;
Subsurface Drainage; Sump Pumps; Waste and Vent Systems; Air and water
balance; Developing Varies Mechanical and Plumbing Details; Fire
Protection Preliminary Design and Water Pressure Calculations; Fire Pump
Calculation and Selection; Piping Isometric and Riser Diagrams;
Preparing and modification of CSI Specification for Mechanical, Plumbing
and Fire Protection Systems;
Standard Urban Stormwater Mitigation Plan (SUSMP) design; and many other
Mechanical design services.
The followings are some sample projects Nader Peyman has designed,
developed, and has pier reviewed as a Mechanical Engineer:
such as design review of Anaheim Regional Transportation Intermodal Center
FACILITIES, such as LACDPW Olive View-UCLA Medical Center Pharmacy
FACILITIES, such as LAUSD James A. Foshay Learning Center Auditorium
Renovation, LAUSD Valley Region Elementary School #13, LAUSD Fulton College
Preparatory School, and LAUSD Central Region Early Education Center.
TRANSPORTATION FACILITIES, such as Amtrak
Southampton Drop Table Building, POLA Berth 200
Office and Yard Facilities (LEED Silver), SJRRC
Altamont Commuter Express Equipment Storage and
Maintenance Facility (LEED Silver), SCRRA
Metro-link Eastern Area Maintenance Facility.
TUNNELS, such as City of Long Beach Lakewood
Boulevard and Spring Street Tunnels renovation.
TRANSIT, such as NCTD Oceanside Transit
Center modifications, and modifications and
maintenance facility and CNG Fueling Station for
Omnitrans Bus Facility.
Fire-protection specification for 2012 Los
Angeles Metro System-wide.
RESTAURANTS, such as El Pollo Loco
Restaurants, Burger Kings, and custom made
such as different Laundromats.
such as LA Fashion Center located at Los
RETAIL STORES, such as Trimana
SINGLE FAMILY HOUSES, such as Beverly Ridge
MULTIFAMILY RESIDENTIAL, such as 94 Unit
Residential Building at 1700 SAWTELLE Street
Santa Monica, California.
OFFICE BUILDINGS such as St. Martha’s Offices.
Note: Most of the pictures on this website are taken at previous Companies
Nader Peyman has worked at them as a Mechanical Engineer.
Wagih S. Andraos, P.E.
We are pleased to have established a business
association with Mr. Wagih S. Andraos with
Mr. Andraos is a licensed
Civil Engineer in the
States of California, New York and six other
States with over 35 years of professional
Mr. Andraos is a Licensed Engineering
Contractor, Class “A", and General Building
Contractor, Class "B" in the State of
Please contact Mr. Andraos regarding
Construction Management inquiries at:
Phone: (310) 714-4414