Commercial and industrial geothermal heat pump systems engineered for ground-source and water-source HVAC installations. Utilizing stable subterranean temperatures, these closed-loop units deliver space heating, cooling, and domestic hot water for commercial buildings and multi-family complexes. Built with heavy structural steel frames and high-performance compressors to minimize lifecycle operating costs and carbon emissions.
Key Features
High COP/EER: Refrigeration circuits leverage stable ground temperatures (10°C to 20°C) to maintain operational efficiency across seasonal loads.
Dual-Circuit Redundancy: Multi-compressor configurations on independent circuits ensure partial load modulation and continuous operation during maintenance.
Corrosion-Resistant Exchangers: Coaxial tube-in-tube or brazed plate heat exchangers built from 316L stainless steel or titanium to withstand aggressive loop water chemistry.
BMS Integration: PLC controllers support standard Modbus and BACnet communication protocols for building management systems.
Acoustic Enclosure: Galvanized steel panels lined with high-density acoustic fiberglass limit mechanical noise and vibration below 65 dB(A).
Technical Specifications
|
Parameter |
Unit |
Model: GTHP-100C |
Model: GTHP-200C |
Model: GTHP-350C |
|
Nominal Heating Capacity |
KW (BTU/h) |
105 (358,000) |
210 (716,000) |
365 (1,245,000) |
|
Nominal Cooling Capacity |
KW (BTU/h) |
98 (334,000) |
195 (665,000) |
340 (1,160,000) |
|
COP |
W/W |
4.65 |
4.58 |
4.70 |
|
EER |
W/W |
5.42 |
5.35 |
5.50 |
|
Compressor Type |
- |
Hermetic Scroll (Dual) |
Semi-Hermetic Screw |
Dual Semi-Hermetic Screw |
|
Refrigerant Charge |
Type / kg |
R410A / 18.5 kg |
R410A / 36.0 kg |
R410A / 62.0 kg |
|
Source Side Water Flow Rate |
M3/h (GPM) |
22.0 (96.8) |
44.0 (193.7) |
78.0 (343.4) |
|
Load Side Water Flow Rate |
M3/h (GPM) |
20.0 (88.1) |
40.0 (176.1) |
72.0 (317.0) |
|
Max Water Pressure Drop |
KPa |
45 |
55 |
68 |
|
Power Supply |
V/Ph/Hz |
380-415V / 3Ph / 50Hz* |
380-415V / 3Ph / 50Hz* |
380-415V / 3Ph / 50Hz* |
|
Sound Pressure Level (1m) |
DB(A) |
62 |
65 |
68 |
|
Dimensions (L × W × H) |
Mm |
2100 × 950 × 1750 |
2800 × 1100 × 1850 |
3400 × 1300 × 1950 |
|
Operating Weight |
Kg |
1150 |
2100 |
3450 |
Technology & Performance
Thermodynamic Regulation: Electronic Expansion Valves (EEVs) adjust refrigerant mass flow across 500 steps to maintain stable superheat under fluctuating ground loads.
Thermal Range: Operates in entering water temperatures from -5°C to 45°C for heating and 10°C to 45°C for cooling, supporting vertical boreholes, horizontal loops, and open wells.
Variable Speed Pumping: Optional inverter-driven pumps controlled via 0-10V signals reduce parasitic power consumption at part-load.
Applications
Commercial Offices: Centralized climate control via 4-pipe fan coil unit networks driven by water source chillers.
Healthcare & Hospitality: Continuous domestic hot water generation paired with precise zone temperature control.
Educational Campuses: District heating and cooling integration across multi-building developments using shared borehole fields.
Residential Complexes: Basement mechanical room installations replacing traditional boilers and chillers to meet low-carbon building codes.
OEM & ODM Customization
Refrigerant Options: Configurations for alternative low-GWP refrigerants including R32 or R1234ze.
Structural Adaptation: Split systems, modular skid-mounted frames, or custom footprints for retrofitting mechanical rooms.
Control Customization: PLC software adjustments and enclosure layouts matching specific BMS standards.
Private Labeling: Laser-etched nameplates, custom sheet metal branding, and multilingual operation manuals.
Quality Control
Material Verification: Copper tubes tested via eddy current per ASTM B75; pressure vessels inspected with ultrasonic weld analysis.
Leak & Pressure Testing: Circuits tested using helium mass-spectrometers (threshold 1 x 10^-7 Pa·m³/s) and hydrostatically tested at 1.5x operating pressure.
Run Testing: 4-hour computerized performance test on dynamometer test benches verifying current, pressures, and COP.
Compliance: ISO 9001 and ISO 14001 manufacturing; certified to CE, ETL (UL 1995 / CSA C22.2), and PED standards.
Packaging & Shipping
Export Crating: ISPM 15 compliant heat-treated solid wood with vacuum foil moisture barriers and shock-absorbing foam.
Component Security: Threaded plastic caps seal water ports; electrical panels secured against vibration and moisture.
Logistics: Skids engineered for forklift and crane handling, equipped with tipping and shock indicators.
FAQ
Request a Quote
Provide the following parameters for a technical and commercial proposal:
- Heating and Cooling Capacity (kW or BTU/h)
- Source Side Configuration (Borehole, Open Well, or Surface Water)
- Entering Water Temperature (EWT) Range (Min/Max)
- Load Side Water Temperature Requirements
- Power Supply Specifications (Voltage / Phase / Frequency)
- Required Certifications and Delivery Destination
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