System Overview
A simple and elegant design
1. Active Rear Door Heat Exchangers
As the variable speed fans pull the hot air from the servers inside the rack, the air is cooled by evaporator coils and blown out the rear doors. The air is then returned to the room at the ambient temperature. Completely dissipating the heat at the source so it doesn’t affect the rest of the space. It’s like having an air conditioner for each rack.
Rear doors are mounted externally to the rack so internal rack space is not affected. Racks up to a height of 52U are supported. Heat exchangers are hot-swappable.
2. Refrigerant Delivery Network
R-513A refrigerant circulates from the heat exchangers to the refrigerant pump via copper pipes. Because the pipes are overhead and not below, a raised floor is not needed. In the event of a puncture or leak, the low flow rate refrigerant instantly flashes into a gas and no liquid will impact the IT equipment in the racks.
A distance of up to 185 feet between the heat exchangers and the pump is supported, so the pump can be placed end-of-aisle or remotely in a mechanical room.
3. Refrigerant Pump
The pump circulates the refrigerant and transfers the heat from the heat exchangers to an external heat rejection system. Thanks to two-phase refrigerant cooling, a very low flow rate on the order of gallons per hour is needed – resulting in low power consumption and high reliability.
The pump features a 10” touchscreen control panel and integrates into building management systems (BMS).
4. External Heat Rejection
Heat is transferred from the fans to the pump, then from the pump to an external heat rejection system.
Options for connecting to the facilities chilled water system or to an OptiCool outdoor direct expansion (DX) unit are available.
System Features
Uses 90% less power compared to air-cooled systems for better ROI and sustainability
Pumps use 60% less floor space compared to CRAC/CRAH units, freeing up space for additional racks
Modular system that scales to the number of racks and total heat capacity required
Redundancy options for refrigerant distribution and power
Easily fits into existing data center environments for retrofit projects
