Two semi-hermetic compressors mounted rigidly next to one another on base
frames and lined with a common suction line connection on the suction side. The
basic compressor:
Semi-hermetic, air-cooled 4-cylinder reciprocating compressor in compact
design. The suction gas is not heated up by the motor, but rather drawn in
directly from into the compressor. The motor is cooled by means of a compact,
integrated ventilation unit, which cools not only the motor, but also the
compressor and in particular the cylinder heads, by means of targeted air
cooling. The best possible serviceability is provided by means of a replaceable
drive motor, among other things. The compressor stands out due to its
outstanding running comfort and efficient operating performance. Dependable
mechanism lubrication is guaranteed by means of an oil pump which is independent
of rotating direction, as well as a large-volume oil sump. The optional oil sump
heating is carried out using an immersion sleeve and can therefore be replaced
without intervening in the refrigeration cycle. An additional connection
facility for an oil level regulator is available as a standard. The electrical
connection is simplified by means of a large-volume electric terminal box. The
electronic motor protection MP10 with optical status indication uses PTC sensors
in series to monitor the winding temperature and, if desired, the discharge gas
temperature.
Colour: blue (RAL 5000)
Technical data
DHAX5/725-4
| f | Qo | Qo' | P | I |
Compressor 1 | 50 Hz | 25.60 kW | 25.60 kW | 13.30 kW | 24.60 A |
Compressor 2 | 50 Hz | 25.60 kW | 25.60 kW | 13.30 kW | 24.60 A |
Total | | 51.20 kW | 51.20 kW | 26.60 kW | 49.20 A |
at following operating condition:
Refrigerant | R404A, R507 |
Reference temperature | Dew point |
Evaporating temperature | -15.0 °C |
Condensing temperature | 45.0 °C |
Voltage | 400 V |
Suction gas temperature | 20 °C |
Subcooling (outside cond.) | 0 K |
Number of cylinders / Bore / Stroke | 2 x 4 / 70 mm / 47 mm |
Displacement 50/60 Hz (1450/1740 ¹/min) | 2 x 62,90 / 2 x 75,50 m³/h |
Voltage 1) | 380-420V Y/YY -3- 50Hz PW |
| 440-480V Y/YY -3- 60Hz PW |
Winding divided into | 66% / 33% |
Max. working current 2) | 2 x 24.0 A |
Max. power consumption 2) | 2 x 12.5 kW |
Starting current (rotor blocked) 2) | 2 x 107.0 / 140.0 A |
Motor protection | MP10 |
Protection terminal box / HA-fan | IP 65 / IP 44 |
Voltage HA-fan | 230 V - 1 - 50/60 Hz, 140 W |
Weight | 449 kg |
Max. permissible overpressure (g) (LP/HP) 3) | 19 / 28 bar |
Connection suction line SL | 54 mm - 2 1/8 " |
Connection discharge line DV | 2 x 28 mm - 1 1/8 " |
Lubrication | Oil pump |
Oil type R134a, R404A, R407A/C/F, R448A, R449A, R450A, R513A | BOCKlub E55 |
Oil type R22 | BOCKlub A46 |
Oil charge | 2 x 4,5 Ltr. |
Oil sump heater | 2 x 230 V - 1 - 50/60 Hz, 2 x 140 W |
Dimensions
Length / Width / Height | 925 / 970 / 530 mm |
Scope of supply
Two semi-hermetic motor compressors HA or HAX (Extent of delivery see compressor), rigidly mounted next to each other on base frame
Ready- mounted with pipes on suction side with joint suction pipe connection
4 rubber plates enclosed
Accessories
Start unloader 230 V - 1 - 50/60 Hz, IP65, less check valve,
including
thermal protection thermostat (posistor tracer)
Start unloader by means of a ESS (Electronic Soft
Start), 400 V - 3 - 50/60 Hz, IP20 (Connection clamps IP00) for installation in
switch cabinet
Capacity regulator 230 V - 1 - 50/60 Hz, IP65
1-2 capacity regulator = 75/50/25% residual capacity
Oil service valve
Oil pressure safety switch MP54 230 V - 1 - 50/60 Hz,
IP20 incl. mounting
Water-cooled cylinder covers
Oil differential pressure sensor DELTA-P II 220-240 V -
1 - 50/60 Hz
Thermal protection thermostat per cylinder cover
4)
Bock Compressor Management BCM2000 including oil pressure
control,
oil temperature control (NTC), thermal protection
thermostat per cylinder couvers
Sea water resistant water-cooled cylinder covers
Special voltage and/or frequency (on request)
Notes
1) | Tolerance (± 10%)
relates to the mean value of the voltage range. Other voltages and current types
on request
All data are based on voltage rms values
PW = part
winding, motors for part winding starting (no start unloaders required)
Designs for Y/D on request |
2) | - The stated value for the max. power consumption is valid
for the adjusted power supply.
- Starting current (rotor blocked):
- Part winding (PW) motors: Winding 1 / Winding 1+2
- Delta/Star (Δ/Y) motors: Δ / Y
- Take account of the max.
operating current / max. power consumption for designing motor contractors, feed
lines, fuses and motor protection switches. Motor contractors: Consumption
category AC3. |
3) | LP = Low
pressure HP = High pressure |
4) | Mounted |