Munters SyCool® Split - 250 kW

Munters SyCool Split provides an efficient cooling solution for new and retrofit installations where access to a suitable water supply may be limited, expensive or unreliable.

Advantages

• Split system eliminates duct penetrations
• No water consumption
• High-efficiency economization
• Factory-optimized controls

The system nominal cooling capacity is 250 kW. Thermosyphon heat exchangers move heat from the data center to ambient through the evaporation of liquid refrigerant in the SyCool evaporator, and condensing of the same refrigerant in the SyCool condenser. The evaporator is connected to the condenser with refrigerant piping allowing up to 500' of separation. As long as the condenser receives air cooler than the evaporator, heat is exchanged passively for "free cooling" of the data center. A simplified version of the system is schematically shown in Figure 1.

The SyCool 250 thermal effectiveness is nominally 65%, which greatly exceeds that of competing refrigerant based economizer systems. For example, with air delivered to servers at 75°F and a 20°F delta T across the servers, SyCool achieves 100% free cooling when the ambient dry bulb temperature is 62°F or lower (operating at 75% load). As ambient temperature rises, SyCool transitions from passive to active by staging/modulating compressors located in the condenser section. Data center heat is rejected by the thermosyphon, passively or actively without the need for diverting valves, allowing seamless transition from economizer to active cooling. As the ambient temperature approaches the temperature from the servers, SyCool finally loses free cooling capacity. The high heat exchange effectiveness coupled with the ability to economize simultaneously with active refrigeration, yields best-in-industry economizer capture efficiency.

SyCool 250 kW condenser

• Connects to 250 kW Down Flow Evaporator
• Options for single or dual electrical feed(s) located at the condenser or evaporator
• Approximate weight: 7,000 lbs

[Diagram: Elevation view and side elevation view of the SyCool 250 kW condenser unit, showing dimensions.]

SyCool 250 kW down flow evaporator

• Underfloor or flooded room configurations
• Blow through or draw through fan arrangements
• Optional floor stand (36" shown)
• Approximate weight, excluding floor stand: 4,400 lbs

[Diagram: Elevation view (face and side) of the SyCool 250 kW down flow evaporator, showing dimensions. Two configurations are shown: bottom supply and horizontal supply.]

System notes:

• Up to 500' separation
• Low pressure thermosyphon piping
• Refrigerant line sizes (per condenser): One (1) 3" or 4" vapor line*, One (1) 1.625" or 2" liquid line*

*depending on interconnecting piping vertical and horizontal separation, plus # elbows

Performance Data - SyCool 250 kW down flow evaporator

Notes: 1000' elevation, 0.2" W.C. external static and clean filters, 75°F supply air