Danfoss CKL Fact sheet

Fact sheet

CKL

District cooling substations for commercial, industrial and residential buildings

Designed for cooling application

District cooling substation is designed for industrial, commercial and residential building applications connected to a district cooling network. Building owners save space by using pre-fabricated skids compared to build-on-site solutions, and experience proves a lot lower investment costs. Further there is a complexity reduction as mechanically and electrically installations reduces the requirement to skills of workforce. Danfoss has more than 40 years of experience in production of substations, which guarantees great functionality.

High ΔT guaranteed

Smaller substations are designed with MicroPlate® brazed – and the larger equipped with gasket heat exchangers from the Danfoss XGF range. Both heat exchanger types ensure that substations will have high efficiency, reduced service cost and longer life time in compare with traditional cooling systems. The combination of Danfoss` ECL controller with differential pressure, temperature and flow control valves offers an excellent temperature control and hydronic balancing of the network. As result of using pressure independent control valves “low ΔT syndrome” is avoided, when Danfoss` guidance for the HVAC installations is followed.

Remote controlling and monitoring

Danfoss automatic controller ECL offers more possibilities for external communication. Traditional SCADA solutions can communicate with the controller via a Modbus protocol. Further Danfoss offers a web-based SCADA solution called ECL portal (ecl. portal.danfoss.com), which enables remote controlling, monitoring and alarming functionalities from the substation. Visualization of the ECL portal gives you easiness of use, and access via PC or Smartphone improves the level of service and reduce costs due to 24/7 access.

Prefabricated substations enable top quality and shorten installation work on the building site

District cooling substations are produced based on a 3D model prepared by our design department. Based on customer requirements all components like: heat exchangers, control valves, pumps and measuring equipment are virtually placed inside the technical room and connected with piping. Based on 3D-drawings pipes are bent, cut and welded with support of automated machines ensuring supreme quality and short delivery time. Large substations are designed as modular constructions,

FEATURES AND BENEFITS

••Substations with high quality components designed for cooling applications fully customized by use of 3D-tools to fit individual needs

••All control components in the substation are high quality Danfoss components like: heat exchanger, control valves, shut-off valves, energy meter, shut-

off valves and automatic controls

••Danfoss prefabricated substations reduces space demand approximately 30% compared to build-on-site solutions

••Easy to install and use with remote access via Internet or via other communication protocols like MODBUS or Danfoss free cloud based ECL Portal

••All Danfoss products are manufactured according PED 97/23/ EC European Pressure Directive, and Danfoss is compliant to ISO9001/ISO14001/ TS16949 automotive standards

to ensure error free products

which makes transportation and assembly easier. Substation includes an electrical wired panel, which is functionally tested and ready to use after connecting power supply to the cooling substation on site. Special pipe clamps prevent thermal bridges and condensation at support points. Danfoss substation is a complete product: designed, produced and tested – ready for use.

Need a design of substation? Just send us:

•Cooling demand

•Design temperatures

•Design pressures

•Space requirements and all other relevant information

www.danfoss.com

CIRCUIT DIAGRAM - EXAMPLE

Electric box

TE 2B

Possible extension

HEX 2

				PI	PI
FV			HEX 1	P2	PI
PI				PI
		E		P1	S3
PI	S	E		PI
	QQ
		PICV1	S5	FV
Technical parameters:
Nominal pressure:	up to PN 25
DC supply temp.:	≥ 3 °C
Electrical supply:	230 / 400 V AC
DN size:	up to DN 350
Piping:	carbon or				Height
	stainless steel
Additional accessories & options:
- Pumps cascade
- Double heat exchanger
- Thermometers and manometers
- Heatmeters
- Temperature sensors			Length		Width
				Example of a standard district cooling substation

CAPACITY AND APPROXIMATE DIMENSIONS

kW	Heat exchanger	Primary	Secondary	Length	Width	Height
100	XB59M-1-110	40	40	2350	420	1530
250	XB66H-SB-1-160	65	65	2640	600	1780
500	XGF100-094M-1-127	100	100	3180	600	1900
750	XGF150-172M-1-107	125	125	3410	600	2350
1000	XGF150-172M-1-143	150	150	3670	1160	2350
1250	XGF150-172M-1-181	150	150	4250	1260	2350
1500	XGF150-220L-1-163	200	200	4250	1260	2750
1750	XGF150-220L-1-193	200	200	4930	1460	2750
2000	XGF200-260L-1-169	200	200	4930	1460	2600

1) Maximum capacity is result of temperatures, allowable pressure drops and local regulations.

Tailored district cooling substations in all sizes

District cooling substations can be tailored to meet the desired capacities and dimensions.

Pipe connections:	DN 25	... DN 350
Capacities:	50 kW...	5 MW

Danfoss Poland Sp. z o.o. · Tuchom, ul. Tęczowa 46 · 80-209 Chwaszczyno · POLAND Tel.: [phone] · Fax: [phone] · [e-mail] · www.danfoss.com

© Danfoss | DHS-SRMT/PL | 2016.09

VL.CW.I3.02