**************************************************************************
USACE / NAVFAC / AFCEC / NASA UFGS-23 81 29 (February 2020)
------------------------------------
Preparing Activity: NAVFAC
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated October 2022
**************************************************************************
SECTION TABLE OF CONTENTS
DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)
SECTION 23 81 29
VARIABLE REFRIGERANT FLOW HVAC SYSTEMS
02/20
PART 1 GENERAL
1.1 SUMMARY
1.2 REFERENCES
1.3 SUBMITTALS
1.4 QUALITY ASSURANCE
1.4.1 VRF System Contractor Design Drawings
1.5 QUALITY CONTROL
1.5.1 Qualifications
1.5.1.1 Qualification Of Installer
1.5.1.2 Ozone Depleting Substances Technician Certification
1.5.2 Standard Products
1.5.3 Manufacturer's Engineering Data
1.5.4 Manufacturer's Instructions
1.6 PROJECT SEQUENCING
1.7 DELIVERY, STORAGE, AND HANDLING
1.8 WARRANTY
PART 2 PRODUCTS
2.1 MATERIALS
2.1.1 Performance Requirements
2.1.1.1 Energy Efficiency
2.1.1.1.1 Variable Refrigerant Flow Multi-Split Air Conditioners
2.1.1.1.2 Variable Refrigerant Flow Multi-Split Heat Pumps
2.1.1.2 Electrical Equipment / Motors
2.1.1.3 Refrigerant
2.1.2 Safety Devices
2.2 CONTROLS
2.2.1 Zone Control
2.3 INDOOR FAN COIL UNITS
2.3.1 Concealed-In-Ceiling Units
2.3.2 Recessed Ceiling Units
2.3.3 Wall Surface-Mounted Units
SECTION 23 81 29 Page 1
