Semi-Hermetic Condensing Unit — Bitzer Piston Compressor Series
【Dual Control System for Precise Operation】
Dual-Control System: Mechanical/electronic hybrid control guarantees precise compressor performance across diverse working conditions.
【High Protection, Safe and Reliable】
Enhanced Protection: Equipped with liquid separators, oil separators, and high/low pressure safeguards for secure and reliable operation.
【Multiple Voltage and Refrigerant Options】
Voltage & Refrigerant Options: Compatible with 380V-50/60Hz or 220V-50/60Hz and R404A/R449A/R448A/R507A/R452A refrigerants.
【Flexible Structure, Field-Serviceable】
Flexible Design: Semi-hermetic piston design with field-serviceable components. Modular structure enables multi-unit parallel operation.
| Technical parameters of semi-hermetic piston compressor box-type integrated unit (R404A) | |||||||
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Unit Structure |
Side Blowing Air |
Type Top Discharge Air |
Type Top Discharge Air |
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Power Supply |
Hz/60Hz |
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Category |
Single Fan |
Dual Fans |
Single Fan |
Dual Fans |
Multiple fans |
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Unit Corresponding Horsepower |
Below 4HP |
5-7HP |
9-12HP |
10-20HP |
20-40HP |
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Refrigerant |
R404A/R449A/R448A/R507A/R452A |
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Evap. Temp |
-40-+10℃ |
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Ambient Temp |
-25-+48℃ |
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Compressor |
Model |
Bitzer Semi-Hermetic Piston |
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Cooling Method |
Low Temperature with Head Fan |
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Motor Protection Module |
Standard Configuration |
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Crankcase Heater |
PTC Standard Configuration, PTC |
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Refrigeration Oil |
Type |
BSE32, Ester Oil |
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Charge Quantity |
Oil Separator/Gas Separator Pre-Charged. |
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Condenser |
Number of Fans |
1 |
2 |
1 |
2 |
2 to 4 |
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Fan Blade Diameter |
450 mm |
450 mm |
630 mm |
550 mm |
630 mm |
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Fan Power |
180W |
180W |
800W |
600W*2 |
1100W*2 |
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Heat Exchange Area㎡ |
34/46 |
54/63/74 |
95/128/143 |
136/166/197 |
200-500 |
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Structure and Material |
mm Internal Thread Copper Tube + Hydrophilic Aluminum Foil. |
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System Components |
Oil Separator |
Y |
Y |
Y |
Y |
Y |
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Gas-Liquid Separator |
Y |
Y |
Y |
Y |
Y |
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Receiver |
6L |
8L |
16L |
16L |
29L |
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Sight Glass |
Y |
Y |
Y |
Y |
Y |
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Dry Filter |
Y |
Y |
Y |
Y |
Y |
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High and Low Pressure Gauge |
Y |
Y |
Y |
Y |
Y |
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High and Low Pressure Controller |
Saginomiya, manual reset, high pressure 30 bar protection. |
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Electrical Control |
Circuit Breaker |
Chint/Schneider |
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AC Contactor |
Schneider, LC1D series, with thermal relay. |
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Control Component |
Phase sequence protector, time delay relay, adjustable and optional, condensing fan control, and supporting electrical parts. |
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Valve Size (Liquid Pipe/Gas Pipe) |
1/2", 7/8" |
5/8", 1-1/8" |
5/8", 1-3/8" |
5/8", 1-5/8" |
7/8", 2-1/8" |
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Outer Dimensions (mm) |
1450*760*850/1280 |
1090*980*1480 |
1500*900*1380 |
2400*1000*2350 |
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Unit Weight |
180 kg |
260 kg |
320 kg |
350 kg |
750 kg |
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Unit Operating Noise @1m |
63 dB |
66 dB |
67 dB |
69 dB |
69 dB |
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Cooling Capacity |
Evaporation Temperature |
Condensation temperature +45℃, subcooling temperature 0K, refrigerated suction temperature +5℃, frozen suction temperature 0℃. |
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Calculated Based on Equipment Load |
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This series includes 5 models:
• Side blowing, single fan — ≤4HP, 180 kg
• Side blowing, dual fans — 5-7HP, 260 kg
• U-type top discharge, single fan — 9-12HP, 320 kg
• U-type top discharge, dual fans — 10-20HP, 350 kg
• V-type top discharge — 20-40HP, 750 kg
• Large cold rooms / cold chain logistics — 20-40HP for large cold room clusters
• Large supermarket refrigeration systems — Central cooling main units
• Industrial refrigeration in food processing plants — 24/7 heavy-duty operation
• Blast freezing / quick freezing — Low-temp high-power applications
• Refrigerant: R404A / R449A / R448A / R507A / R452A optional
• Structure: Side / top discharge, U-type or V-type selectable by installation environment
• Voltage: 380V / 220V, 50/60Hz
• Remote monitoring: IoT remote monitoring optional
• Oil separator / accumulator: Selected per operating conditions
