Solar Heat Pump For Greenhouse Heating

Your Professional Solar Heat Pump for Greenhouse Heating Supplier

 

Greenhouse climate control requires reliable, continuous thermal energy to maintain stable crop growth temperatures during cold weather cycles. This product category page details our commercial-grade, solar-assisted, and photovoltaic (PV)-powered heat pump systems engineered specifically for hydronic greenhouse heating networks.

 

Unlike standard residential space heating, agricultural facilities face distinct thermal load fluctuations driven by outdoor ambient drops, structural glazing types, ventilation rates, and nighttime minimum temperature thresholds. Our systems combine high-efficiency air-source heat pump technology with direct solar PV integration to significantly lower fossil-fuel dependency and operating electricity costs.

 

The product lineup features high-capacity units—such as the LSQS series—offering rated heating outputs ranging from 75.5 kW to 172.5 kW, designed to integrate seamlessly with underfloor heating pipes, fan coil units, radiators, and closed-loop agricultural water networks.

 

 
 
Key Technical Specifications
 

Technical Parameter

Model LSQS66R2/BP-CP

Model LSQS75R2/BP-CP

Model LSQS150R2/BP-CP

Model LSQS190R2/BP-CP

AC Power Input

380 V, 50/60 Hz, 3-Phase

380 V, 50/60 Hz, 3-Phase

380 V, 50/60 Hz, 3-Phase

380 V, 50/60 Hz, 3-Phase

Max. AC Input Power

23 kW

26 kW

48 kW

52 kW

Solar DC Input Range

200 to 560 V DC

200 to 560 V DC

200 to 560 V DC

200 to 560 V DC

Recommended PV Power

22 kW

24 kW

40 kW

48 kW

Rated Heating Capacity

75.5 kW

86.1 kW

143.3 kW

172.5 kW

Rated Heating Power Input

20.68 kW

24.46 kW

40.15 kW

49.15 kW

COP at Rated Heating

3.65

3.52

3.57

3.51

Rated Cooling Capacity

53.3 kW

58.5 kW

100 kW

115 kW

Compressor Technology

EVI DC Inverter

EVI DC Inverter

EVI DC Inverter

EVI DC Inverter

Refrigerant Type

R410A / R32

R410A / R32

R410A / R32

R410A / R32

Nominal Water Flow

13.0 m³/h

14.8 m³/h

24.6 m³/h

29.7 m³/h

Water Pipe Connection

DN50

DN50

DN65

DN80

Outdoor Unit Noise Level

Less than or equal to 71 dB

Less than or equal to 71 dB

Less than or equal to 73 dB

Less than or equal to 73 dB

 

Why Choose Us
 

In-House Manufacturing Infrastructure & Calibrated Testing Laboratories
We operate dedicated production lines featuring precision CNC sheet metal fabrication and multi-stage anti-corrosion powder coating designed specifically for humid agricultural environments. Every unit undergoes strict quality validation within fully calibrated psychrometric testing chambers—simulating ambient extremes from minus 25 degrees Celsius to 43 degrees Celsius—alongside automated helium mass spectrometer leak detection to ensure long-term hermetic and thermal reliability.

 

Specialized Hydraulic Integration & Advanced Thermal Architecture
Our systems are engineered for seamless balance within complex agricultural heating networks by integrating essential auxiliary components such as buffer tanks, plate heat exchangers, and variable-speed circulation pumps. Utilizing advanced EVI inverter compressors and smart bivalent control logic, the units maintain high-efficiency heating capacity and can automatically coordinate with existing backup boilers during severe sub-zero cold snaps.

 

Professional Export Logistics & Comprehensive Engineering Documentation
To protect heavy industrial equipment during international transit, we utilize reinforced wooden crating, internal shock-absorbing mounts, and moisture-barrier vacuum sealing optimized for standard container loading or open-top flat racks. Furthermore, each shipment is backed by a complete documentation package—including electrical schematics, hydraulic piping diagrams, factory test reports, and destination-specific compliance certificates—to facilitate smooth customs clearance and on-site commissioning.

 

Residential Solar Heat Pump for House

 

Target Greenhouse Applications

Commercial Vegetable Greenhouses: Maintains vital root-zone and ambient night temperatures for high-value crops (such as tomatoes, cucumbers, and peppers) across extended winter cycles.

 

Flower and Nursery Propagation Facilities: Provides precise temperature regulation necessary for delicate seedlings, ornamental plants, and multi-zone commercial nurseries.

 

Multi-Span Commercial Growing Structures: Large-scale footprints requiring high-capacity thermal outputs and balanced hydraulic pressure drops across extended pipe loops.

 

Cold-Climate Agricultural Projects: Engineered for regions experiencing severe sub-zero winter designs, utilizing EVI low-ambient performance curves to protect crops against sudden freezes.

 

Agricultural Research & Institutional Greenhouses: Integrated with advanced climate automation to support strict experimental temperature profiles and repeatable environmental conditions.

 

 

How the System Works in Greenhouse Environments

A utility-grade solar heat pump system integrates thermal generation, photovoltaic energy conversion, and hydraulic distribution across four primary stages:

 

Solar Photovoltaic Generation: Rooftop or ground-mounted PV arrays convert solar irradiance into DC electricity, feeding directly into the heat pump's internal DC bus within the specified voltage window.

 

Air-Source Thermal Extraction & Compression: The outdoor unit draws ambient air across evaporator coils, extracting latent heat. EVI DC inverter compressors elevate the refrigerant enthalpy, enabling efficient heat transfer even when external temperatures drop.

 

Hydronic Energy Transfer: Plate heat exchangers transfer thermal energy into the closed-loop water circuit. Heated water circulates through greenhouse distribution networks, such as underfloor PEX piping, low-level perimeter pipes, or forced-air fan coils.

 

Intelligent Hybrid Energy Coordination: Smart control systems balance power allocation between solar generation, battery storage systems, and the AC utility grid, ensuring uninterrupted nighttime heating and stable climate regulation.

Hybrid Solar Heat Pump System

 

Core Manufacturing, Quality Control, and Testing

Procuring equipment for commercial agricultural infrastructure demands strict adherence to international manufacturing and safety standards:

Performance Verification

Every compressor and heat exchanger assembly undergoes automated refrigerant pressure testing, vacuum decay checks, and calorimetric running evaluations.

Electrical Safety & EMC Testing

Units are tested for dielectric strength, insulation resistance, earth continuity, and harmonic suppression to comply with commercial grid interconnection standards.

Corrosion Resistance

Structural sheet metal features multi-layer electrostatic powder coating and anti-corrosion treatments designed to withstand humid, chemically treated greenhouse environments.

Global Compliance

Manufactured in ISO-certified facilities with electrical and mechanical configurations tailored to destination market safety directives (such as CE, CB, or regional equivalents as requested).

 

 

Frequently Asked Questions

 

Q: Can a solar heat pump maintain greenhouse temperatures during freezing winter nights?

A: Yes. While solar generation peaks during daylight hours, the heat pump continues operating overnight by drawing electrical power from the utility grid or an integrated battery storage bank. System sizing accounts for nighttime peak loads based on local winter design temperatures.

Q: What primary parameters must be submitted to receive an accurate project quotation?

A: To generate a precise engineering configuration, provide the greenhouse location, total growing area, structure type, target indoor day/night temperatures, local minimum winter design temperature, existing hydronic piping layout, available solar installation space (PV capacity), and local grid voltage specifications.

Q: Can these units integrate into an existing boiler or hydronic heating network?

A: Yes. The heat pump can act as the primary thermal source or operate in a bivalent hybrid system alongside existing biomass, gas, or oil boilers, utilizing automated 3-way valves controlled by water temperature sensors.

Q: How does photovoltaic integration affect daily power consumption?

A: Direct DC solar input and hybrid AC/DC operation offset a substantial percentage of compressor running energy during peak daylight hours, directly lowering daily operational electricity expenditure.

As one of the leading solar heat pump for greenhouse heating manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please feel free to wholesale customized solar heat pump for greenhouse heating from our factory. Welcome to view our website for more information.

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