❄️ AHRI 1230 VRF Piping (Max 540 ft Single Run / 3,280 ft Network, 164 ft Lift)

VRF Refrigerant Piping Length Calculator

Size multi-split Variable Refrigerant Flow (VRF / Daikin VRV / Mitsubishi City Multi) copper refrigerant piping networks under AHRI 1230: calculate longest equivalent piping length (up to 540 ft single run / 3,280 ft total network), apply vertical elevation lift capacity derates (up to 164 ft between outdoor and indoor fan coils), and VRF mechanical profits.

1. Project & Operating Inputs

Total VRF Indoor Units Connected (Fan Coil Count e.g. 45 VRF Fan Coils)

Longest Equivalent Pipe Run Length (Feet e.g. 380 ft to Furthest Evaporator)

Customer Bid Price for Supplied & Braze-Piped VRF Network ($)

Inverter Outdoor Units, ACR Copper Lines, Refnet Joints, Plumbers & Techs ($)

2. Financial Breakdown & Yield

AHRI 1230 VRF PIPING RULES

Turnkey VRF Piping & Equipment Profit

Commercial VRF Mechanical Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost