Two-stage semi-hermetic suction gas-cooled 6-cylinder reciprocating
compressor in compact design for expanded use in low temperature application
(stages divided into: LP/HP 2:1). The intermediate pressure line is mounted and
insulated. Liquid sub cooler, expansion valve, two sight glasses and filter
dryer are enclosed separately for individual external mounting. As an option it
is possible to have these mentioned units attached directly to the compressor
(lined and insulated). This cost-effective system is precisely tuned to the
refrigerant. 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 large-volume
electric terminal box (IP54) in solid metal design has a fold-back and removable
hinged lid with easy quick-release fasteners. The optional oil sump heating is
carried out using an immersion sleeve and can therefore be replaced without
intervening in the refrigeration cycle. A direct connection facility for an oil
level regulator is possible on one of the three standard sight glasses. The
electronic motor protection MP10 with optical status indication uses PTC sensors
in series to monitor the winding temperature and the discharge gas temperature
at the HP stage. The oil pressure safety switch is completely mounted. A
standard oil service valve simplifies oil changes.
Colour: blue (RAL 5000)
Technical data
HGZX7/2110-4 R410A
Application | Refrigeration & AC |
Compressor refrigeration capacity | 25.00 kW |
Power consumption | 29.80 kW |
Current draw (400 V) | 58.20 A |
Mass flow | 0.115 kg/s |
at following operating condition:
Refrigerant | R410A |
Reference temperature | Dew point |
Evaporating temperature | -50.0 °C |
Condensing temperature | 40.0 °C |
Supply frequency | 50 Hz |
Voltage | 400 V |
Suction gas superheat | 10 K |
Subcooling (outside cond.) | -- K |
Number of cylinders / Bore / Stroke | 6 / 80 mm / 70 mm |
Displacement LP/HP 50 Hz (1450 ¹/min) 1) | 122,40 / 61,20 m³/h |
Displacement LP/HP 60 Hz (1740 ¹/min) 1) | 146,90 / 73,40 m³/h |
Voltage 2) | 380-420V Y/YY -3- 50Hz PW |
| 440-480V Y/YY -3- 60Hz PW |
Winding divided into | 50% / 50% |
Max. working current 3) | 68.0 A |
Max. power consumption 3) | 36.0 kW |
Starting current (rotor blocked) 3) | 232.0 / 357.0 A |
Motor protection | MP10 |
Protection terminal box | IP 65 |
Weight | 289 kg |
Max. permissible overpressure (LP/MP/HP) 1) | 19 / 19 / 28 bar |
Connection suction line SV | 54 mm - 2 1/8 " |
Connection discharge line DV | 35 mm - 1 3/8 " |
Connection intercooler ON / OFF | 16 mm - 5/8 " |
Lubrication | Oil pump |
Oil type R404A, R410A, R448A/R449A | BOCKlub E55 |
Oil charge | 4,5 Ltr. |
Oil sump heater | 230 V - 1 - 50/60 Hz, 140 W |
Dimensions
Length / Width / Height | 825 / 630 / 635 mm |
Scope of supply
Semi-hermetic six-cylinder reciprocating compressor with drive motor
Single-section compressor housing with hermetically integrated electric motor
Oil pump
Cylinder arrangement
in W
Stages divided into LP/HP at the ratio of 2:1
Intermediate
pressure mixed line mounted and insulated
Possibility of
connection of oil level controllers ESK, AC+R or CARLY
Winding protection with PTC resistor sensors and
electronic trigger unit MP 10
Oil pump cover with screw-in option for oil differential
pressure sensor DELTA-P II
Oil charge:
HGZ: BOCKlub A46
HGZX:
BOCKlub E55
Three sight glasses
Pressure relief valve
Suction and discharge line valve
Inert gas charge
Accessories
Oil sump heater 230 V - 1 - 50/60 Hz, 140 W
Liquid supercooler, expanion valve, solenoid valve,
sight glass,
filter dryer enclosed separately (extra item) for individual,
external mounting. For the function of the compressor the mounting is absolutely
necessary.
Oil service valve
Oil pressure safety switch MP54 230 V - 1 - 50/60 Hz,
IP20 4)
Liquid supercooler, expanion valve, solenoid
valve,
sight glass, filter dryer
attached directly to the
compressor,
lined and insulated
Oil differential pressure sensor DELTA-P II 220-240 V -
1 - 50/60 Hz 5)
Thermal protection thermostat per cylinder cover
6)
4 anti-vibration pads enclosed
Special voltage and/or frequency (on request)
Notes
1) | LP = Low
pressure MP = Middle pressure HP = High pressure |
2) | 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 |
3) |
- The stated value for the max. power consumption is valid for the adjusted
power supply. - 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. |
4) | Enclosure |
5) | Enclosure (screw-in part mounted) |
6) | Mounted |