Semi-hermetic, suction gas-cooled 8-cylinder reciprocating compressor in
compact design especially for the use with hydrocarbons. 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. The suction cover can be rotated by 90° in each
instance. Dependable mechanism lubrication is guaranteed by means of a
double-circuit lubrication system using 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.
A direct connection facility for an oil level regulator is possible on one of
the three standard sight glasses. The large-volume electric terminal box in
solid metal design has easy quick-release fasteners. The electronic motor
protection MP10 (for installation in the switch cabinet) with optical status
indication uses PTC sensors in series to monitor the winding temperature andthe
discharge gas temperature. The
compressor has to be equipped with heat protection thermostat and oil sump
heater (accessory). The oil filling is the special oil Synth
68. To ensure the safety measures, an additional agreement has to
be signed.
Colour: blue (RAL 5000)
Technical data
HG8/2830-4 HC
Application | Refrigeration & AC |
Compressor refrigeration capacity | 111.00 kW |
Power consumption | 50.60 kW |
Current draw (400 V) | 89.80 A |
Mass flow | 0.377 kg/s |
at following operating condition:
Refrigerant | R290 |
Reference temperature | Dew point |
Evaporating temperature | -10.0 °C |
Condensing temperature | 45.0 °C |
Supply frequency | 50 Hz |
Voltage | 400 V |
Suction gas temperature | 20 °C |
Subcooling (outside cond.) | 0 K |
Number of cylinders / Bore / Stroke | 8 / 75 mm / 80 mm |
Displacement 50/60 Hz (1450/1740 ¹/min) | 245,90 / 295,10 m³/h |
Voltage 1) | 380-420V Y/YY -3- 50Hz PW |
| 440-480V Y/YY -3- 60Hz PW |
Winding divided into | 50% / 50% |
Max. working current 2) | 135.6 A |
Max. power consumption 2) | 79.0 kW |
Starting current (rotor blocked) 2) | 386.0 / 567.0 A |
Motor protection | MP10 |
Protection terminal box | IP 65 |
Weight | 420 kg |
Max. permissible overpressure (g) (LP/HP) 3) | 19 / 28 bar |
Connection suction line SV | 76 mm - 3 1/8 " |
Connection discharge line DV | 54 mm - 2 1/8 " |
Lubrication | Oil pump |
Oil type R290, R1270 | BOCKlub G68 |
Oil charge | 9,0 Ltr. |
Oil sump heater | 230 V - 1 - 50/60 Hz, 200 W |
Oil service valve | 7/16" UNF |
Thermal protection thermostat | PTC resistor |
Dimensions
Length / Width / Height | 940 / 580 / 655 mm |
Scope of supply
Semi-hermetic eight-cylinder reciprocating compressor with
drive motor
Single-section Compressor housing with hermetically integrated
electric motor
Oil pump
Oil pump cover with screw-in option for oil differential
pressure sensor INT250
Possibility of
connection of oil level controllers ESK, AC+R or CARLY
Winding protection with PTC resistor sensors. Electronic
triggering unit MP 10 to be fitted in switch cupboard (enclosed)
Possibility of connection of oil level controllers Traxoil 4)
Oil service valve
Oil charge:
HG HC: BOCKlub G68
Three sight glasses
Prepared for capacity regulator (3 cylinder covers)
Pressure relief valve
Suction and discharge line valve
Inert gas charge
4 anti-vibration pads enclosed
Accessories
Start unloader 230 V - 1 - 50/60 Hz, IP65, less check valve,
including
thermal protection thermostat (posistor tracer)
Capacity regulator 230 V - 1 - 50/60 Hz, IP65
1-3 capacity regulator = 75/50/25% residual capacity
Oil sump heater 230 V - 1 - 50/60 Hz, 200 W
Thermal protection thermostat per cylinder cover
Oil differential pressure sensor DELTA-P II 220-240 V -
1 - 50/60 Hz 5)
Water-cooled cylinder covers
Additional fan
230 V AC - 1 - 50 Hz, 97 W,
IP44
230 V AC - 1 - 60 Hz, 128 W 5)
Connection piece suction and discharge valve in welding design
Intermediate adapter for discharge line valve 5)
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) | Only with additional
adapter possible |
5) | Enclosure |