Danfoss BD350 350GH Direct Current Twin Compressor R134a 24V DC Datasheet
Summary
This comprehensive guide provides detailed specifications for the BD350/350GH dual compressor unit, designed for commercial refrigeration systems. The manual covers electrical parameters, operational performance curves, installation schematics, and detailed troubleshooting codes (including error types like Fan over-current or Thermostat failure). It is essential reading for HVAC technicians, engineers, and industry professionals responsible for the selection, optimal operation, maintenance, and commissioning of high-efficiency cooling equipment using 24V DC power.
Page 1 Text Content
BD350/350GH
Direct Current Twin Compressor Application BD350/350GH 102Z
Blue stripe
SUCTION
CONNECTOR
serial number
Approvals N 1297
General white background MADE IN GERMANY
Grey background
Code number (without electronic units) 102Z3017 Electronic unit (2 pcs. required) single: 101N0710, 36 pcs: 101N0711 Approvals e4, CE, C-Tick Compressors on pallet
Application
S = Static cooling normally sufficient
Application LBP/MBP/HBP
O = Oil cooling
Evaporating temperature °C -25 to 15 F1 = Fan cooling 1.5 m/s
Voltage range VDC 19.6-31.5 (compressor compartment temperature equal to ambient temperature)
Max. condensing temperature continuous (short) °C 60 (70)
F2 = Fan cooling 3.0 m/s necessary
Max. winding temperature continuous (short) °C 125 (135)
SG = Suction gas cooling normally sufficent – = not applicable in this area
Cooling requirements
Application LBP MBP HBP
38°C 43°C Remarks on application:
Motor Motor type Variable speed Resistance, all 3 windings (25°C) 0.1
Design Displacement cm3 2 x 5.08
Oil quantity (type) cm3 560 (polyolester) Maximum refrigerant charge Free gas volume in compressor cm3 2 x 1690
Weight - Compressor/Electronic unit kg 15.8/2 x 0.3
Battery protection settings
58Barcode on
Voltage Min. value Default Max. value Cut out (0.1 steps) VDC 19.0 21.1 27.0
Cut in diff. (0.1 steps) VDC 0.5 3.9 10.0
Dimensions Height mm
Suction connector location/I.D. mm | angle 6.2 | 90°
material | comment Cu-plated steel | Al caps
Process connector location/I.D. mm | angle 6.2 | 31.5°
material | comment Cu-plated steel | Al caps
Discharge connector location/I.D. mm | angle 5.0 | 28°
material | comment Cu-plated steel | Al caps
Connector tolerance I.D. mm ±0.09, on 5.0 +0.12/+0.20 Remarks
June 2008 DEHC.ED.100.P2.02 1/2
Page Summary Contents For Danfoss BD350 350GH Direct Current Twin Compressor R134a 24V DC Datasheet
Manual Details
| Brand | Current |
|---|---|
| Pages | 2 |
| File Size | 293.06 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What is the recommended voltage range for the unit to operate correctly?
The required DC voltage range is between 19.6V and 31.5V.
According to the manual, what might cause an 'Error type code 2,500'?
This error often indicates a problem with the NTC thermistor if it is short-circuited or disconnected.
What condition triggers another common error, 'Error type code 3,000'?
A 'Motor start error' (code 3,000) suggests the rotor is blocked or that the differential pressure in the refrigeration system is too high.