Temperature Control

Seawater-Source Heat Pumps

Heat and cool aquaculture water through a purpose-designed water-source thermal system.

Series / configuration: NXR-HS brochure range; final model by technical offer
Heat exchanger in company brochure: Titanium tubes / PP shell
Operating mode: Heating / cooling

Request a technical offer View specifications

Seawater-Source Heat Pumps — image in supplied company material — Equipment illustrationImage from supplied company materials. Final configuration may differ.

Technical information

Specifications

Figures below are transcribed from the stated brochure, where available. Confirm the selected model, conditions and scope in the final technical offer.

Item	Documented information
Heat exchanger in company brochure	Titanium tubes / PP shell
Operating mode	Heating / cooling
Selection inputs	Source and load temperatures, salinity and flow

Source: 山东纳鑫新能源有限公司.pdf p. 24. Brochure information; final scope is agreed in the technical offer.

Specialist brochure schedule

NXR-HS nominal performance

Quoted figures require the stated operating conditions and final model confirmation.

Model	Heating capacity (kW)	Heating input (kW)	Cooling capacity (kW)	Cooling input (kW)
NXR-80HS	92	18.7	81	13.7
NXR-120HS	138	27.6	121	20.6
NXR-160HS	184	37.9	162	27.5
NXR-200HS	193	38.3	170	28.9
NXR-240HS	276	55.1	242	41.2
NXR-300HS	289	57.5	256	43.4
NXR-400HS	385	76.6	341	57.8
NXR-500HS	481.5	95.8	427	72.2
NXR-600HS	576	114.6	511	86.5
NXR-800HS	770	153.2	682	115.6

Source: 养殖专用海水源热泵机组简介.pdf p. 4 and its English counterpart p. 4. Manufacturer nominal data; no independent test report supplied. Heating: Hot-water outlet 45°C; hot-water flow equals the nominal cooling chilled-water flow; cold-water inlet 15°C; cold-water flow equals the nominal cooling cooling-water flow. Cooling: Chilled-water outlet 7°C; chilled-water flow 0.172 m³/(h·kW); cooling-water inlet 18°C; cooling-water flow 0.103 m³/(h·kW). Conflicting dimensions, connections and weight fields are omitted.

Equipment selection guide

Prepare the selection brief

Define the load

Provide both source and load water temperatures, seasonal ambient conditions and the required heating or cooling duty.

Confirm the interfaces

Agree piping or service connections, electrical supply, control interfaces, installation access and the routine cleaning method.

Agree the scope

Specify the included equipment, optional configurations, commissioning tasks, acceptance conditions and documentation required.

Operating principle

How it works

A refrigerant circuit transfers heat between the source-water side and the load-water side. Source temperature, water flow and required outlet temperature determine the capacity and electrical demand.

Technical approach

Key considerations

The company brochure describes U-shaped titanium heat-transfer tubes.
A polypropylene shell is described for the seawater-facing exchanger.
Modular operation allows staged capacity to follow demand.

Equipment selection guide

Where it fits

Temperature Control

Equipment selection guide

Questions & answers

How is the final model selected?

Provide the design duty, water or air conditions and seasonal operating points. The technical offer must establish the selected model, available capacity and electrical input at those conditions.

What options are included as standard?

Materials, controls, interfaces and accessories are confirmed in the technical offer. Illustrated equipment and optional functions are not automatically included.

Can this equipment be integrated into an existing site?

A retrofit review needs the existing hydraulic layout, utilities, available space and operating constraints. Provide photographs and current operating data with your enquiry.

Product brochures