Commissioning of a Keyter Chiller

Following recent instruction by a European chiller and air-conditioning hire company ACES – Advanced Compressor Engineering Services Ltd has successfully managed to design and specify the latest range of hire chillers due to land in the UK & EU market in the coming months.

Working with our Spanish partners Keyter https://www.keyter.com/portfolio/nemesis-units/ we have been able to find the perfect selection for our hire client.

Part of the scope was to ensure all chiller hire requirements were covered including but not limited to the following client limitations.

Limitation 1: We must ensure that the chiller can be operated at multiple duty points throughout its cooling capacity.

Chiller Solution: Multi scroll chiller with custom software to ensure duty can me altered by a minimum of 50% of full load capacity.

Limitation 2: The chiller selected must have the facility to reduce inrush current.

Chiller Solution: The chiller was designed with two power staged and safe isolation within the controller allowing start up one compressor power stage should site have power limitations.

Limitation 3: The chiller must be able to run in tandem operation with another hire chiller.

Chiller Solution: Using Keyter’s modular chiller we can connect a total of eight modules. Each module can be ordered in 100-208Kw cooling capacity duty stages with an impressive +18c to -12c chilled water operating range meaning it is suitable for a very vast range of hire chiller requirements.

Limitation 4: We plan to increase our chiller hire fleet dramatically but want to ensure that the selections we order cover a full range of duties which is difficult given we will not know what cooling capacity is required for our client on any given day.

Chiller Solution:  We offered the client what might seem a miracle solution to their cooling capacity requirement by offering them the potential to have a floating range of cooling capacities dependent on how many modules they have out on customer hire.

An example of a floating chiller fleet is as follows.

Total modules in stock and owned 20 Units @ 208KW each. With the Keyter NEMESIS you can connect 8 modules allowing for one hire unit of 8x208KW = 1664KW chiller cooling capacity at nominal conditions.  This would mean that even if 8 of 20 units were sent out on hire there would still be the following options available to hire out at the yard. 8x208KW + 2x 208KW + 1x208KW + 1x208KW or 12 individual hire operations of 208KW or Any arrangement up to the total cooling capacity of the chillers available in the yard as each module can operate as a complete unit.

Limitation 5: We plan to purchase the most robust chiller on the market and need to ensure both its physical footprint, weight and lifting points work for day to day movements.

Chiller Solution: The Keyter Nemesis chiller comes with forklift & frame lifting points as standard allowing for simple operations and limited requirements for hiab lifts. The chiller dimensions are also compacted as unlike conventional long and heavy 1664KW chillers each module could potentially be stored or transported separately adding to the flexibility of hire operations.

Limitation 6: Damage protection

Chiller Solution: Keyter have designed built in coil, panel, and compressor protection panels suitable for transport which also reducing noise whilst the equipment is in operation.

Limitation 7: Maintenance and Spares

Chiller Solution: By utilizing the modular format ALL critical spares can be kept in stock and purchased in bulk volumes to ensure value for money spares purchasing. Should a module fail later in operational life you can simply swap it out for another identical module ensuring your customers have no operational downtime.