Water Source And Ground Source Heat Pump

Product Overview

Product Classification: Closed-Loop / Open-Loop Water Source Heat Pump (WSHP) and Ground Source Heat Pump (GSHP) Chiller Units.
Capacity Range: 50 kW to 1,200 kW (Cooling / Heating).
Compressor Technology: Semi-Hermetic Screw Compressors / High-Efficiency Scroll Compressors.
Refrigerant: R410A, R134a, R513A (Low-GWP options available upon request).
Primary Applications: Commercial HVAC centralized systems, industrial process cooling, district heating/cooling networks, and waste heat recovery.

Water Ground Source Heating And Cooling Heat Pump
This series of water and ground source heat pumps delivers high-efficiency central cooling and heating for commercial complexes, industrial plants, and district energy stations.
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Geothermal Heat Pump System
Commercial and industrial geothermal heat pump systems engineered for ground-source and water-source HVAC installations.
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Commercial Water Source Heat Pump
The Commercial Water Source Heat Pump (WSHP) series provides centralized and decentralized hydronic heating and cooling for commercial real estate, multi-family complexes, and industrial facilities.
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Ground Source Heat Pump
The GSHP-C Series provides commercial and industrial thermal management by utilizing shallow geothermal loops (soil, groundwater, or surface water) as a stable thermal reservoir.
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Water Loop Heat Pump System
Water Loop Heat Pump (WLHP) systems connect distributed terminal units to a closed-loop water circuit operating between 15°C and 32°C, providing simultaneous heating and cooling across multi-zone...
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Water Source Heat Pump
The water source heat pump provides simultaneous heating, cooling, and individual zone control for commercial closed-loop, open-loop, and geothermal HVAC applications.
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Product Range & Specifications Matrix

Series Code	Cooling Capacity (kW)	Heating Capacity (kW)	Compressor Type	Circuits	Nominal Water Flow (m3/h)	Dimensions (L x W x H, mm)
GSHP-S-100	105	120	Dual Scroll	2	18.1	1850 x 950 x 1600
GSHP-S-250	260	295	Dual Scroll	2	44.8	2200 x 1050 x 1750
WSHP-W-400	410	455	Semi-Hermetic Screw	2	70.6	2600 x 1200 x 1850
WSHP-W-800	820	910	Dual Screw (Inverter opt.)	4	141.2	3400 x 1400 x 1950
WSHP-W-1200	1250	1380	Dual Centrifugal / Screw	4	215.0	4100 x 1600 x 2100

Technical Specifications

Specification Category	Details
Operating Limits	Source Side (Ground loop / Water source) Entering Water Temperature: -5°C to +45°C
	Load Side (Chilled / Hot Water) Leaving Temperature: +4°C to +15°C (Cooling); +35°C to +55°C (Heating)
Electrical Data	Power Supply: 380V-415V / 3Ph / 50Hz; 440V-460V / 3Ph / 60Hz
	Control Voltage: 24V DC / AC for PLC digital and analog I/O isolation
Hydraulic Connections	Connection Type: Victaulic (Grooved) or Flanged connections complying with ASME / DIN standards
	Maximum Working Pressure: 1.6 MPa (Standard) / 2.4 MPa (High-pressure option for high-rise buildings)
Control System	Controller: Siemens / Carel programmable logic controller (PLC)
	Communication Protocol: Modbus RTU / BACnet IP communication protocol for Building Management System (BMS) integration

Key Features

01/

Dual-Source Thermal Adaptability
Engineered to operate on open-loop groundwater, closed-loop borehole fields (vertical U-tube), surface water bodies (lakes/rivers), or industrial waste heat streams.

02/

Shell-and-Tube / Plate Heat Exchangers
Evaporators and condensers utilize high-efficiency inner-grooved copper tubes or 316L stainless steel asymmetric plates, ensuring high heat transfer coefficients and fouling resistance.

03/

Multi-Compressor Staging
Multi-circuit design with independent refrigeration circuits improves part-load efficiency (IEER/IPLV) and ensures continuous redundancy if maintenance is required on a single circuit.

04/

Acoustic Isolation Enclosure
Hermetically sealed compressor compartments lined with 50mm high-density acoustic insulation foam, keeping sound pressure levels below 68 dB(A) at 1 meter.

Technology & Working Principle

The system operates on the standard vapor-compression refrigeration cycle, optimized for continuous thermal exchange with stable geological or water sources.

Source Side Heat Exchange
Water or glycol solution circulates through the ground loop or water source, absorbing or rejecting heat from the earth.

Evaporation / Condensation
In Heating Mode
The refrigerant absorbs heat from the source water via the evaporator, vaporizes, and passes through the compressor.
In Cooling Mode
The cycle reverses or redirects via a 4-way valve / external water circuit, rejecting heat from the building into the ground/water source.

Capacity Modulation
Electronic Expansion Valves (EEV) modulate refrigerant mass flow with 500 steps of precision, maintaining superheat control within +/- 0.5°C across variable loads.

Applications

Commercial Real Estate
Centralized HVAC for office complexes, shopping malls, and hotels requiring simultaneous heating and cooling zoning.

District Energy Networks (DEC)
Centralized energy plants utilizing municipal wastewater or large-scale borehole thermal energy storage (BTES).

Industrial Process Thermal Control
Cooling loops for data centers, chemical reactors, laser cutting equipment, and plastic injection molding lines.

Agricultural Greenhouses
Constant temperature regulation for winter crop heating and summer root-zone cooling.

Typical System Solutions

System Architecture Closed-Loop Borehole GSHP System
Configuration: Vertical HDPE U-tube ground exchangers + Plate heat exchanger intermediate loop + Modular WSHP units + Variable Primary Flow (VPF) chilled water distribution.
Best for: Greenfield commercial sites with available land area for vertical drilling.

System Architecture B: Open-Loop Groundwater / Surface Water WSHP System
Configuration: Extraction well / raw water intake -> Plate-and-frame titanium heat exchanger (fluid separation) -> Secondary clean water loop -> WSHP units.
Best for: Projects near rivers, lakes, or high-yield aquifers, minimizing drilling costs.

System Architecture C: Industrial Waste Heat Recovery Integration
Configuration: Industrial cooling water return (35°C to 45°C) -> WSHP evaporator -> High-temperature domestic hot water production (55°C to 60°C) + chilled water for process cooling.

OEM & ODM Customization

We provide comprehensive engineering collaboration for brand owners, system integrators, and mechanical contractors.

Structural Footprint Customization

Modular frame designs optimized for tight mechanical room layouts or containerized skid packages.

Hydraulic Material Upgrades

Titanium tube bundles or 316L stainless steel water circuits for corrosive groundwater, coastal brackish water, or swimming pool applications.

Refrigerant Customization

Factory pre-charging or nitrogen-holding charges for R134a, R410A, or low-GWP hydrofluoroolefins (HFOs).

Electrical & Control Integration

Custom PLC programming (Siemens, Schneider, or Carel), specific enclosure ratings (IP54 / IP55), and localized wiring schematics.

Quality Control & Factory Testing

Every unit undergoes rigorous factory acceptance testing (FAT) before dispatch.

Pressure & Leak Testing
Nitrogen pressure hold test at 2.8 MPa for 24 hours, followed by helium mass spectrometer leak detection on all brazed and welded refrigerant joints.
Electrical Safety Testing
Dielectric strength test (1800V for 1 min) and insulation resistance verification (>500 M ohms at 1000V DC).
Full-Load Performance Run Test
Units are connected to the factory dynamometer testing platform, running under simulated 100% and partial load conditions to record COP, power consumption, and vibration spectra.
Certifications
Manufactured under ISO 9001 Quality Management System, ISO 14001 Environmental Management, and CE / PED compliance directives.

FAQ

Q: What is the maximum water loop temperature tolerance for your standard heat exchangers?

A: Standard copper-tube shell-and-loop exchangers handle entering water temperatures from -5°C to 45°C. For corrosive water sources (TDS >1000 ppm or high chloride content), we specify titanium or 316L stainless steel materials.

Q: Can these units be configured for simultaneous heating and cooling?

A: Yes. For 4-pipe systems or multi-zone commercial buildings, we offer heat-recovery water source heat pump configurations that extract heat from spaces requiring cooling and redirect it to zones requiring heating.

Q: What is the minimum and maximum water flow rate fluctuation tolerated by the internal flow switch?

A: The system tolerates flow variations between 70% and 120% of nominal design flow. Factory-installed differential pressure switches protect against low-flow conditions to prevent evaporator freezing.

Q: What documentation is provided with each shipment?

A: Each unit includes the factory FAT test report, electrical wiring diagrams, P&ID schematics, user/commissioning manual, and material mill test certificates (MTC) for pressure vessels.

Request a Technical Proposal & Quote

To provide an accurate sizing calculation and commercial quotation, please share your project requirements:
Application type: Commercial building, industrial process, district energy
Required Cooling Capacity / Heating Capacity: kW or RT
Source side type: Ground loop, open groundwater, surface water and entering water temperatures
Load side required temperatures: Chilled water supply/return & Hot water supply/return
Electrical power supply: Voltage / Frequency / Phase
Target delivery timeline and specific certification requirements

As one of the most professional water source and ground source heat pump manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to wholesale customized water source and ground source heat pump from our factory.

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