⚠️ ASHRAE 15 & 34 (RCL Safety Limit 26.0 Lbs/1,000 CuFt R-410A / R-32 Smallest Space)

ASHRAE 15 VRF RCL Safety Calculator

Verify life safety compliance for VRF refrigerant piping passing through occupied building spaces under ASHRAE Standard 15 & 34: calculate Refrigerant Concentration Limit (RCL = 26.0 lbs/1,000 cu ft for R-410A in the smallest enclosed room volume), size automatic refrigerant leak detection sensors and motorized shutoff isolation valves, and VRF safety margins.

1. Project & Operating Inputs

Small Occupied Spaces Protected (Room Count e.g. 45 Executive Offices)

Smallest Room Net Volume (Cubic Feet e.g. 960 Cu Ft / 10'x12'x8' Room)

Customer Bid Price for Supplied Leak Detectors & Shutoff Valve Skid ($)

Infrared R-410A Leak Sensors, Motorized Isolation Ball Valves & Tech ($)

2. Financial Breakdown & Yield

ASHRAE 15 REFRIGERANT SAFETY

Turnkey VRF Safety Valve Package Profit

Life Safety HVAC Engineering Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost