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Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Specifications
Condenser type :
Air Cooled
Certification :
CE
Compressor Type :
Semi Hermetic
Model Number :
SP4H3500, SP4H350E
Application :
HVAC,Cold Room,Condensing Unit,Air Conditioning
MOQ :
1
Delivery Time :
1 Month
Payment Terms :
T/T,Western Union
Exhaust volume 50/60Hz :
102.9/123.5 m³/hr
Price :
Discussed
Supply Ability :
100000Pcs/Year
Refrigerant :
R22, R407C, R134a, R404A, R507
Place of Origin :
China
Horse Power :
35HP
Brand Name :
Refcomp
Packaging Details :
Wooden Case
Description
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Product Overview
High-performance semi-hermetic compressor engineered for demanding commercial and industrial applications.
  • High-Pressure Casing & Compact Integrated Layout: Engineered to withstand working pressures up to 28 bar, the casing features optimized internal suction gas channels that minimize pressure drops and clearance volume losses. Its compact outer frame integrates internal suction filters, shut-off valves, and protective thermistor sensors into a single body, saving skid footprint and simplifying field installation.
  • Flexible Step Capacity Modulation for Energy Efficiency: To match dynamic cooling demand in multi-circuit chilling plants and cold storage rooms, the semi hermetic type compressor provides 2-stage step capacity regulation (50% and 100%). Unloading cylinder pairs during partial load conditions prevents short-cycling, maintains stable system suction pressure, and optimizes power usage.
  • High-Efficiency Motor & Multi-Refrigerant Versatility: The integrated 3-phase motor supports Part-Winding (PW) and Direct-On-Line (DOL) starting modes to manage electrical starting surges. Cooled directly by returning suction gas before compression, the motor operates efficiently across global supply voltages (400V/50Hz, 460V/60Hz) with full support for R22, R134a, R407C, R404A, and R507 refrigerants.
Applications
  • High-Tonnage Commercial HVAC & Chillers: Ideal for large air-cooled and water-cooled liquid chiller plants supplying central climate control in commercial buildings.
  • Large Commercial Cold Storage Facilities: Delivers reliable cooling for regional food distribution centers, high-capacity cold rooms, and agricultural processing hubs.
  • Industrial Process Chilling: Provides precise fluid temperature management for chemical processing, commercial beverage manufacturing, and industrial manufacturing lines.
Product Image
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Technical Parameters
Model SP4H3500/SP4H350E
Rated power 35HP/26.1KW
Exhaust volume(50/60Hz) 102.9/123.5 m³/hr
Standard motor 400V/3/50Hz,460V/3/60Hz PW
Cylinders 4
Oil Charge 3.7L
Weight 238KG
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Manufacturer Profile
Coolstart is a global manufacturer and supplier of commercial and industrial refrigeration equipment, specializing in high-performance reciprocating, scroll, and screw compressor technologies. Engineered to meet strict international standards for energy efficiency and operational reliability, our products feature automated precision manufacturing and flexible OEM/ODM integration capabilities. Coolstart serves engineering contractors, equipment OEMs, and distributor networks across Europe, North America, the Middle East, and Asia-Pacific.
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Frequently Asked Questions
Q1: How does the SP4H3500 handle severe thermal load fluctuations in central water chillers during off-peak hours?
A1: With 2-stage step capacity modulation (50% and 100%), the compressor automatically unloads cylinder pairs when cooling demand drops. This stabilizes chilled water outlet temperatures, prevents motor short-cycling, and cuts operating power costs during low-demand periods.
Q2: What feature prevents main electrical panel tripping when starting this heavy-duty 35 HP compressor on-site?
A2: The unit supports Part-Winding (PW) starting, which energizes the motor windings sequentially to keep locked-rotor inrush current manageable (178 A vs 290 A under Direct-On-Line start). This minimizes voltage dips on commercial power grids during start-up.
Q3: Can the SP4H3500 be retrofitted into existing refrigeration systems using eco-friendly medium-pressure refrigerants?
A3: Yes. Suction gas passes directly across the internal motor chamber to cool the windings before compression. This thermal management design allows safe and efficient operation across R22, R134a, R407C, R404A, and R507 without extra cooling accessories.
Q4: What is the standard lead time for sample and volume production orders?
A4: In-stock sample units ship within 3 business days, while standard mass production orders take 10 to 15 working days.
Q5: What commercial terms and warranty does Coolstart offer?
A5: All compressors include a 1-year standard factory warranty. Orders are fulfilled under FOB Shenzhen or EXW terms, with payment accepted via TT or Western Union in USD.
Request a Technical Quote for SP4H3500
Our application engineering team provides custom technical proposals and direct factory quotes within 8 hours of receiving your inquiry. Contact Coolstart today to optimize your system performance and receive a competitive quotation.
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Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System

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Product Detail
Condenser type :
Air Cooled
Certification :
CE
Compressor Type :
Semi Hermetic
Model Number :
SP4H3500, SP4H350E
Application :
HVAC,Cold Room,Condensing Unit,Air Conditioning
MOQ :
1
Contact Supplier
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System
Refcomp SP4H3500 SP4H350E 35HP Air Cooled Semi Hermetic Type Compressor for AC System

Shenzhen Coolstart Refrigeration Equipment Co., Ltd

Verified Supplier
1 Years
guangdong, shenzhen
Since 2001
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Trading Company
Main Products :
Air Cooled Condenser, Refrigeration Semi Hermetic Compressor, Scroll Compressor
Total Annual :
50000000-10000000
Employee Number :
80~100
Certification Level :
Verified Supplier
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