HVAC System Filtration
HVAC Filtration Return and outside air shall be provided with air filter. Filter type and efficiency shall be based on the required cleanliness of…
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HVAC Air System
Zoning of rooms/space within one group to be served by common air conditioning unit(s) due to similarity in rooms/space thermal load, load profile or…
Read articleHVAC Design Conditions
HVAC Load Calculations HVAC load calculations shall use HAP (Hourly Analysis Program) or Elite (CHVAC) load calculation software. Calculations shall be computer generated for…
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Fundamentals of HVAC Control Systems
This article describes the minimum requirements for HVAC control systems consisting of sensors, indicators, actuators, final control elements, interface equipment, other apparatus, accessories, and…
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Overcurrent Protection Devices | Electrical System Design
Overcurrent Protection Devices | Electrical System Design Overcurrent Protection Devices Operation of electrical equipment above rated current produces excessive heat and will result…
Read articleElectric Duct Mounted Heaters for HVAC System
This article describes the minimum requirements for electric duct mounted heaters. Duct heaters shall have components mounted and wired at the factory and terminated…
Read articleHumidifier For HVAC System | Air Conditioning Systems
This article describes the minimum requirements for humidifiers for use with HVAC systems, including in duct mounted and space mounted humidifiers. Humidifier Working Principle…
Read articleHVAC Chemical Filter Units
This article describes the minimum requirements for chemical filter units for use with HVAC systems. HVAC Chemical Filter Units Submittals Product Data shall include…
Read articleConductors & Overcurrent Protection | Electrical System Design
Conductors & Overcurrent Protection | Electrical System Design Conductor Sizes & Types The area of conductor is expressed in terms of Circular Mils.…
Read articleHVAC Fans Selection Guide | Axial Fans | Ventilators
This article describes the minimum requirements for fans for use with HVAC systems, including axial fans, centrifugal fans and ventilators. HVAC Fans Selection Guide…
Read articleHVAC Pump Selection and Types
This article describes the minimum requirements for hydronic pumps for use with HVAC systems, including in line circulators, vertical in line pumps, end suction…
Read articleAir Cooled Centrifugal Water Chillers | How Does A Chiller Work
This article describes the minimum requirements for factory assembled air cooled centrifugal water chillers including compressor motor, motor starter, lubrication system, evaporator, condenser, controls,…
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