Indirect economiser Product

Munters SyCool Split 250 kW

A thermosyphon economiser rated at 250 kW that moves heat to outside air without pumps and without using water.

thermosyphonwaterless250 kWfree cooling

Direct answer

What this record says

Munters SyCool Split 250 kW is a cooling product from Munters. The supplier publishes a capacity of 250 kW nominal, not yet reviewed as a normalized claim. Its lifecycle status is available. Last reviewed Sept. 4, 2026 against 1 source.

1 sourceReviewed Sept. 4, 2026
Manufacturer
Munters
Rated capacity
250 kW nominalNo duty point stated
Total flow
Not recorded
Status
Available

Product brief

What the record shows

SyCool Split rejects data hall heat to outside air using a thermosyphon rather than a pumped loop. Refrigerant evaporates in the indoor unit, rises to the outdoor condenser, gives up its heat and drains back by gravity. Nothing pumps it.

Munters presents that as fewer moving parts and fewer failure points, and it also means no water is consumed, which is the main reason a water-scarce site would consider it. Nominal capacity is 250 kW, and the range is built in blocks of 125, 250, 400 and 500 kW. Refrigerant piping allows up to 500 feet between the indoor and outdoor units, so the condenser can sit where there is space rather than directly above the hall.

The published performance table is rated at 1,000 feet elevation, 0.2 inches of water column external static pressure and 75 degrees Fahrenheit supply air, and capacity varies with ambient temperature across that table. The condenser weighs about 7,000 pounds and the indoor unit about 4,400 pounds excluding its floor stand. When outside air is warm enough that the passive cycle cannot carry the load, compressors stage on and the unit adds mechanical cooling.

Munters does not publish the ambient temperature at which that transition happens for a given supply-air target. Ask for the annual hours of compressor operation modelled for the site's own weather file, because the efficiency case rests on that number.

Capacity figures are supplier-reported unless the source says otherwise. Compare products at the same temperatures, flow, pressure, and redundancy state.

SpecificationSupplier-stated
Water use
NoneSupplier wording, not yet normalized
Module sizes
125, 250, 400 and 500 kW blocksSupplier wording, not yet normalized
Rated capacity
250 kW nominalSupplier wording, not yet normalized
Unit separation
Up to 500 ft of refrigerant pipingSupplier wording, not yet normalized
Condenser weight
About 7,000 lbSupplier wording, not yet normalized
Rating conditions
1,000 ft elevation, 0.2 in water column external static, 75°F supply airSupplier wording, not yet normalized
Indoor unit weight
About 4,400 lb excluding floor standSupplier wording, not yet normalized
Manufacturer
Munters

Connected records

Compatible architecture

Connected records

Equipment category

Evidence ledger

Sources and evidence

The links below show where the factual claims came from. Supplier specifications remain supplier-reported unless the record names independent operating evidence.

  1. 01
Record information
Record ID
DCC / PROD / MUNTERS-SYCO
Record reviewed
Sept. 4, 2026
Record first published
Sept. 4, 2026
External sources
1
Search visibility
Offered to search engines

Required fields this record has not addressed yet, most important first:

  • Rating conditions
  • Public deployment evidence
  • Stated application
  • Fluid or materials
  • Serviceability

Direct answers

Frequently asked questions

Direct answers drawn from the record, its comparison fields, and the evidence linked below.

What is the Munters SyCool Split 250 kW?

SyCool Split rejects data hall heat to outside air using a thermosyphon rather than a pumped loop. Refrigerant evaporates in the indoor unit, rises to the outdoor condenser, gives up its heat and drains back by gravity. Nothing pumps it. Munters presents that as fewer moving parts and fewer failure points, and it also means no water is consumed, which is the main reason a water-scarce site would consider it. Nominal capacity is 250 kW, and the range is built in blocks of 125, 250, 400 and 500 kW. Refrigerant piping allows up to 500 feet between the indoor and outdoor units, so the condenser can sit where there is space rather than directly above the hall. The published performance table is rated at 1,000 feet elevation, 0.2 inches of water column external static pressure and 75 degrees Fahrenheit supply air, and capacity varies with ambient temperature across that table. The condenser weighs about 7,000 pounds and the indoor unit about 4,400 pounds excluding its floor stand. When outside air is warm enough that the passive cycle cannot carry the load, compressors stage on and the unit adds mechanical cooling. Munters does not publish the ambient temperature at which that transition happens for a given supply-air target. Ask for the annual hours of compressor operation modelled for the site's own weather file, because the efficiency case rests on that number.

Who makes the Munters SyCool Split 250 kW?

Munters makes it. We file it under data center air handlers, and its status is available.

What are the key specifications for the Munters SyCool Split 250 kW?

Water use: None; Module sizes: 125, 250, 400 and 500 kW blocks; Rated capacity: 250 kW nominal. These figures come from the supplier. Before comparing two products, restate both at your own water temperatures, flow, pressure, and redundancy, because a rating measured under favorable conditions will not hold on site.