Description

• Projects in this scope area may include installing new heating, cooling and ventilation systems such as chilled water systems, cooling towers, direct expansion (DX) split air-cooled systems, packaged/rooftop units, water source heat pumps, central station air handlers, packaged terminal air conditioning, and window air conditioning units; and installing new indoor mounted variable refrigerant flow type air conditioning units and outdoor condensing units for both heating and cooling. The full, detailed scope of work for this project including any additional work areas will be updated here after alignment with project stakeholders through scoping and design activities. 

Baseline

• New heating, cooling and ventilation equipment shall be sized to meet the NYC Mechanical Code ventilation requirements and cooling and heating load calculations based on methods as recommended by ASHRAE handbooks   
• When sizing the HVAC Systems, designers shall calculate room by room heating and cooling loads for each space being air conditioned.  The calculations shall be utilized for equipment purchase. 

RAD Conversions 

• All residential units and community facilities should receive a space cooling system, whether a centralized system, or window or through-wall AC units. If window or through-wall AC units are selected, RAD Conversion Partners should provide dedicated 120V 20A outlets where not already present and should upgrade in-unit electrical capacity if required or indicated by NEC. For projects not utilizing heat pumps for heating and cooling, assume adequate cooling sized for the entire apartment, typically one AC unit per living area and bedroom. ACs must have a minimum CEER of 16. 

Strategies

Optimize Performance, Operation & Maintenance of Buildings, Systems & Assets

Prioritize Sustainable Materials, Technologies & Practices

Innovate Adaptive & Resilient Solutions

CompModRADSustainability AgendaCommercial BathroomsCommunity CentersCommercial Kitchens

Last Updated on January 10, 2026 at 8:47 am

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Specifications

23 05 00 - Common Work Results for HVAC

23 05 13 - Common Motor Requirements

23 05 29 - Hangers and Supports for HVAC Piping and Equipment

23 05 53 - Identification for HVAC Piping and Equipment

23 05 93 - Testing Adjusting and Balancing for HVAC

23 09 13 - Instrumentation and Control for HVAC

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Details

S-DT_S-101_CONCRETE PAD DETAILS AND NOTES_NEW HVAC