Mechanical/Electrical Library

Mechanical/Electrical Library


Written by professional engineers, this library of over 455 sections offers you a single source for the technical specifications and reference materials to specify:

  • Fire suppression systems
  • Plumbing
  • HVAC
  • Building electrical power distribution systems
  • Lighting and controls
  • Communications cabling and equipment for data, voice, and video
  • Detection and alarm systems, including fire, intrusion, access, and security systems

Endorsed by ACEC and NSPE, the Mechanical/Electrical Engineering Specifications Library is compliant with building codes such as the International Building Code, Uniform Plumbing Code, and National Electrical Code. Integrate your projects easily with specifications that complement project drawing information, specifications used by architects, and coordinate with standard AIA and EJCDC contract documents.

With MasterSpec®, everyone in your office can access the most thoroughly written master specifications, extensive background research (including key industry standards and their impact on product selection, installation, and testing), and editing software — all from ONE, user-friendly screen.



Consulting engineers, E/A, multi-discipline engineering, or design build firms, owners, and other design professionals rely on MasterSpec for:
  • Code Compliance and Background Information — The Mechanical/Electrical Specifications Library meets or exceeds building code compliance requirements, and where applicable, provides background information and advice in the Supporting Documents.
  • Standards Discussions — MasterSpec incorporates or references standards published by AHRI, AMCA, ANSI, ASCE, ASHRAE, ASTM, AWS, CSA, FMG, ICC-ES, IEC, IES, IEEE, MSS, NFPA, NEMA, NETA, NSF, UL, SMACNA, and TIA, among others, to make sure that you are specifying the proper products, installations, and testing.
  • Cloud-based Background Research — Enjoy 24/7/365 access to MasterSpec’s industry-recognized Supporting Documents.
  • Scalable Solutions — Accommodate the full range of projects your firm encounters — from airports and hospitals to apartment complexes and retail centers — with format and package choices for varied project sizes, types, and complexities.
  • Sustainable Design Information — Easily access and select ASHRAE 189.1, Green Globes, the International Green Construction Code (IgCC), LEED v4, and LEED 2009 information and discussion.
  • A Formal Peer and Technical Review Process — MasterSpec is the only commercial specification system reviewed by a committee of practicing engineers and specification experts.
With the Mechanical/Electrical Specifications Library, you can specify:
  • Fire-suppression systems
    • Fire-suppression commissioning
    • Fire pumps and controls
    • Water-based standpipes and sprinklers
    • Fire-extinguishing systems including clean agent, dry chemical, and carbon dioxide
  • Plumbing Systems
    • Plumbing equipment and piping insulation
    • Plumbing commissioning
    • Potable and non-potable water piping and storage
    • Sanitary and storm water piping
    • Compressed-air systems
    • Medical gases
    • Plumbing equipment
      • Commercial and residential plumbing fixtures
      • Water heaters and heat exchangers
      • Water softeners and filtration equipment
      • Sanitary waste equipment
  • Electrical Systems
    • Medium- and low-voltage power distribution and control equipment
      • Substations
      • Switchgear
      • Transformers (low and medium voltage only)
      • Short-circuit, coordination, and arc-flash studies
      • Electrical metering, monitoring, and control
    • Indoor and outdoor lighting and controls
    • Theatrical and sports field lighting and control
    • Lightning protection systems
    • Electrical power generation equipment
      • Generator sets and transfer equipment
      • Wind turbines and solar collectors
      • Power conditioning and backup units
  • Electronic Safety and Security Systems
    • Electronic surveillance systems and equipment
      • Security cameras
      • Access control
      • Intrusion detection
      • Perimeter security
    • Electronic detection and alarm
      • Fire detection and alarms
      • Gas and refrigerant detection and alarms
    • Local-area mass notification
  • Communications Systems
    • Structured cabling, including equipment room fittings and backbone and horizontal cabling
    • Data and voice communication systems and equipment
    • Healthcare communications and monitoring systems
  • HVAC Systems
    • Mechanical insulation systems for ducts, equipment, and piping
    • HVAC commissioning
    • Control systems
      • Operator work stations
      • Cabling, sensors, and control devices
      • Sequences of operation
    • Heating and cooling piping
      • Fuel-supply systems, including gas and oil piping and oil storage tanks
      • Steam and condensate
      • Hydronic (heating, cooling, and condenser water)
      • Refrigerant
    • Air-distribution systems, including metal and non-metal ducts, plenums, and casings
    • Air-handling equipment
      • Fans
      • Hoods
      • Unitary and modular air-handling units
      • Central station and terminal air-handling units (heating, cooling, and ventilating — singularly and in combination)
      • Air-cleaning equipment
    • Central heating and cooling plant
      • Boilers, feedwater equipment, and pumps
      • Furnaces (commercial and residential)
      • Chillers (water and air cooled) and pumps
      • Cooling towers and air-cooled condensers
    • Decentralized heating and cooling equipment
      • Unitary heating and cooling units
      • Terminal heating and cooling units

Table of Contents:

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Explore MasterSpec Mechanical/Electrical Specifications Library sample sections and Supporting Documents:
Sample Section – 238219 Fan Coil Units

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View Supporting Documents for Section 1238219, Fan Coil Units


MasterSpec Supporting Documents include:

  • Summary
  • Evaluations
  • Drawing Coordination Checklist
  • Specification Coordination Checklist


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