Secop BDN50K Direct Current Compressor R600a 12/24V DC
General
Code number (without electronic unit): 109Z0420
Electronic unit - Leisure: 1012740, 40 pcs: 101N2741
Compressors on pallet: 240
Application
Application range: LBP/MBP
Voltage range: 9.6 - 17 / 19 - 34 VDC
Cooling requirements
Application: LBP / MBP
| °C | LBP | MBP |
| 32°C / 38°C / 43°C | S | S |
Absolute maximum ratings
| °C | ||
| Machine compartment temperature for compressor operation | -10 to 50 | |
| Max. compressor tilt angle for temporary operation | ±30° | |
| Operating pressure range | see diagram to the right | |
Any levels of stress exceeding the absolute maximum value of machine compartment temperature range or operating pressure range or tilt angle may damage the device. Prolonged exposure to stress above the recommended operating conditions may also affect the device's reliability.
Motor
Motor type: permanent magnet, brushless DC
Speed: variable speed
Resistance, each of the three windings (25°C): 3.1 Ω
Design
| cm³ | ||
| Displacement | 2.60 | |
| Oil quantity (type) | 53 (polyolester) | |
| Maximum refrigerant charge | 70 g | |
| Free gas volume in compressor | 472 cm³ | |
| Weight - Compressor/Electronic unit | 1.37/0.14 kg |
Standard battery protection settings
| Voltage (0.1 steps) | Default | Min. value | Max. value | ||
| 12V ± 0.3V DC, all values | Cut out level | VDC | 10.4 | 9.6 | 17 |
| 24V ± 0.3V DC, all values | Cut out level | VDC | 22.8 | 19 | 32 |
| Battery cut-in difference | VDC | 1.3 | 0.5 | 10 |
Dimensions
| mm | angle | ||
| Height | A 89.0 | ||
| B 82.4 | |||
| B1 48.7 | |||
| B2 45.8 | |||
| Suction connector | C 6.25° | location/I.D. mm | material comment |
| Copper | Rubber plug | |||
| Process connector | D 6.2 | 77.9° | location/I.D. mm | material comment |
| Copper | Rubber plug | |||
| Discharge connector | E 5.0 | 86.9° | location/I.D. mm | material comment |
| Cu-plated steel | Rubber plug | |||
| Connector tolerance | I.D. mm ±0.09, on 5.0 +0.12/+0.20 |
Remarks: Please follow the brazing instructions on page 3 (Product Bulletin DES.N.101.M).
Capacity (EN 12900 Household/CECOMAF)
12V DC, static cooling
| rpm \ °C | -30 | -25 | -23.3 | -20 | -15 | -10 | -5 | 0 | 5 |
| 2,300 | 16.8 | 23.3 | 25.9 | 31.3 | 40.9 | 52.2 | 65.4 | 80.5 | 97.7 |
| 3,000 | 23.8 | 32.6 | 35.9 | 43.0 | 55.4 | 70.0 | 87.0 | 106.8 | |
| 4,000 | 32.5 | 44.7 | 49.2 | 58.9 | 75.8 | 95.7 | 119.1 | 146.4 | |
| 4,500 | 36.0 | 50.2 | 55.3 | 65.5 | 82.8 | 103.2 | 127.9 |
Capacity (ASHRAE LBP)
12V DC, static cooling
| rpm \ °C | -30 | -25 | -23.3 | -20 | -15 | -10 | -5 | 0 | 5 |
| 2,300 | 20.6 | 28.5 | 31.6 | 38.3 | 50.0 | 63.8 | 79.9 | 98.4 | 119.4 |
| 3,000 | 29.3 | 39.9 | 43.9 | 52.6 | 67.6 | 85.4 | 106.2 | 130.4 | |
| 4,000 | 39.8 | 54.6 | 60.2 | 72.0 | 92.6 | 116.9 | 145.5 | 178.9 | |
| 4,500 | 44.6 | 62.0 | 68.1 | 80.6 | 101.6 | 126.5 | 156.4 |
Power consumption
12V DC, static cooling
| rpm \ °C | -30 | -25 | -23.3 | -20 | -15 | -10 | -5 | 0 | 5 |
| 2,300 | 16.8 | 20.2 | 21.4 | 24.0 | 28.2 | 32.5 | 36.8 | 41.1 | 45.1 |
| 3,000 | 21.9 | 26.6 | 28.2 | 31.3 | 36.1 | 40.9 | 45.6 | 50.2 | |
| 4,000 | 30.1 | 36.9 | 39.3 | 43.8 | 50.6 | 57.4 | 64.3 | 71.2 | |
| 4,500 | 34.4 | 41.8 | 44.3 | 49.0 | 56.0 | 62.9 | 69.7 |
Current consumption (for 24V applications the following must be halved)
12V DC, static cooling
| rpm \ °C | -30 | -25 | -23.3 | -20 | -15 | -10 | -5 | 0 | 5 |
| 2,300 | 1.40 | 1.68 | 1.79 | 2.00 | 2.35 | 2.71 | 3.07 | 3.42 | 3.76 |
| 3,000 | 1.82 | 2.22 | 2.35 | 2.61 | 3.01 | 3.41 | 3.80 | 4.19 | |
| 4,000 | 2.51 | 3.08 | 3.27 | 3.65 | 4.22 | 4.79 | 5.36 | 5.93 | |
| 4,500 | 2.87 | 3.49 | 3.69 | 4.09 | 4.67 | 5.24 | 5.80 |
COP (EN 12900 Household/CECOMAF)
12V DC, static cooling
| rpm \ °C | -30 | -25 | -23.3 | -20 | -15 | -10 | -5 | 0 | 5 |
| 2,300 | 1.00 | 1.16 | 1.21 | 1.30 | 1.45 | 1.61 | 1.78 | 1.96 | 2.17 |
| 3,000 | 1.09 | 1.23 | 1.27 | 1.37 | 1.53 | 1.71 | 1.91 | 2.13 | |
| 4,000 | 1.08 | 1.21 | 1.25 | 1.35 | 1.50 | 1.67 | 1.85 | 2.06 | |
| 4,500 | 1.05 | 1.20 | 1.25 | 1.34 | 1.48 | 1.64 | 1.84 |
COP (ASHRAE LBP)
12V DC, static cooling
| rpm \ °C | -30 | -25 | -23.3 | -20 | -15 | -10 | -5 | 0 | 5 |
| 2,300 | 1.24 | 1.42 | 1.48 | 1.60 | 1.79 | 1.98 | 2.18 | 2.41 | 2.67 |
| 3,000 | 1.33 | 1.50 | 1.56 | 1.68 | 1.88 | 2.10 | 2.34 | 2.61 | |
| 4,000 | 1.32 | 1.48 | 1.53 | 1.65 | 1.83 | 2.04 | 2.27 | 2.53 | |
| 4,500 | 1.30 | 1.48 | 1.54 | 1.64 | 1.82 | 2.02 | 2.25 |
Operational errors (TOOL4COOL® or LED flashes)
| Error code or LED flashes | Error type | |
| 7 | Communication error (Communication of master controller stopped for 15 minutes (default)) | Can be read out in the software TOOL4COOL® |
| 6 | Thermostat failure (If a NTC thermistor is short-circuit or has no connection, the electronic unit will enter manual mode). | |
| 4 | Thermal cut-out of electronic unit (PCB or machine compartment temperature exceeds minimum or maximum limits). | |
| 3 | Minimum motor speed error (If the refrigeration system is too heavily loaded, the motor cannot maintain min. speed at approximately 2,150 rpm). | |
| 2 | Motor start error (The rotor is blocked or the differential pressure in the refrigeration system is too high (>5 bar)). | |
| 1 | Fan over-current cut-out (The fan is overloading the electronic unit). | (The voltage is outside the cut-out setting). |
A Wire Dimensions DC
| Size | Cross section | AWG | Max. length* 12V operation | Max. length* 24V operation | |
| [mm²] | [Gauge] | [m] | [ft.] | [m] | [ft.] |
| 2.5 | 12 | 2.5 | 8 | 4 | 13 |
| 5 | 10 | 4 | 13 | 8 | 26 |
| 6 | 8 | 6 | 20 | 12 | 39 |
| 10 | 7 | 10 | 33 | 20 | 66 |
*Length between battery and electronic unit
Accessories for BDN50K
| Code number | |
| Mounting Bolt joint for one compressor | 118-1960 |
| Secop Gateway | 105N9518 |
Test conditions
| EN 12900 CECOMAF | ASHRAE LBP | |
| Condensing temperature | 55°C | 54.4°C |
| Ambient temperature | 32°C | 32°C |
| Suction gas temperature | 32°C | 32°C |
| Liquid temperature | no subcooling | 32°C |
Spade connectors
6.3 mm 1/4 in.
Diagram Description: A schematic shows the electrical connections for the compressor. It includes options for a display, a Secop Gateway, and a mechanical thermostat. The diagram illustrates power supply connections, LIN communication lines, and connections for optional PC communication via USB or a gateway. It also shows the placement of a fuse and main switch.
Connections:
- Display: Connects to +, LIN and C (non-PC option).
- Secop Gateway: Connects to UBAT, LIN and C. Can be used with PC option (TOOL4COOL®) or mechanical thermostat.
- Non-PC option (resistor): Connects to + and LIN via series resistor.
Brazing on BD Nano Discharge Connector
Secop BDN45F/-A, BDN50K/-A, MB3CKV, and BDN-EV compressors use a special discharge connector element that is directly connected to the discharge tube to optimize energy consumption. This element is made from plastic and is sensitive to high heat exposure.
Instructions:
- When brazing a tube into the discharge connector, ensure that the area with the discharge connector element never exceeds 150°C / 302°F.
- Do not heat up the bottom of the connector directly.
- Use a fork burner and/or a damp cloth, if necessary. A protective plate can also serve to protect the discharge connector element from direct heat from a flame.
- Do not braze longer than 10 seconds and wait for 5 minutes for the next soldering attempt.
Further information: Product Bulletin – Brazing Technique for Compressor Connectors (DES.N.600.A1.02)
