❄️ Rear Door Heat Exchangers (Motivair / Coolcentric RDHx, 75 kW Passive vs Active Fans)

Rear Door Heat Exchanger (RDHx) Cooling Calculator

Size rear door heat exchangers (RDHx / Motivair ChilledDoor / Coolcentric): compare passive doors (server fan driven up to 35 kW) versus active EC fan-assisted doors (up to 75 kW per rack), neutralize server hot exhaust air directly at rack rear, achieving room-neutral white space ($22^circ ext{C}$), and data center profits.

1. Project & Operating Inputs

Rack IT Thermal Load (kW e.g. 55.0 kW High-Density Compute Rack)

Chilled Water Supply Temp (°C e.g. 18.0°C Warm Water Cooling)

Customer Bid Price for Supplied Active RDHx Units ($)

Active RDHx Coil Doors, EC Fan Matrix, Chilled Water Quick Disconnects ($)

2. Financial Breakdown & Yield

75 KW ACTIVE REAR DOORS

Turnkey Rear Door Heat Exchanger Array Profit

Rack-Mounted Heat Extraction Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost