Semi-hermetic, suction gas-cooled 4-cylinder reciprocating compressor in
compact design especially for the use with hydrocarbons. The best possible
serviceability is provided by means of a replaceable drive unit, among other
things. The compressor stands out due to its outstanding running comfort and
efficient operating performance. The suction shut-off valve can be rotated by
90° in each instance. 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 (for installation in
the switch cabinet) with optical status indication uses PTC sensors in series to
monitor the winding temperature and, the discharge gas temperature. The
compressor has to be equipped with heat protection thermostat and oil sump
heater. 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
HG5/945-4 S HC
Application | Refrigeration & AC |
Compressor refrigeration capacity | 36.80 kW |
Power consumption | 14.90 kW |
Current draw (400 V) | 26.70 A |
Mass flow | 0.125 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 | 4 / 80 mm / 47 mm |
Displacement 50/60 Hz (1450/1740 ¹/min) | 82,20 / 98,60 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) | 49.0 A |
Max. power consumption 2) | 28.6 kW |
Starting current (rotor blocked) 2) | 126.0 / 160.0 A |
Motor protection | MP10 |
Protection terminal box | IP 65 |
Weight | 200 kg |
Max. permissible overpressure (g) (LP/HP) 3) | 19 / 28 bar |
Connection suction line SV | 54 mm - 2 1/8 " |
Connection discharge line DV | 35 mm - 1 3/8 " |
Lubrication | Oil pump |
Oil type R290, R1270 | BOCKlub G68 |
Oil charge | 3,6 Ltr. |
Oil sump heater | 230 V - 1 - 50/60 Hz, 140 W |
Dimensions
Length / Width / Height | 830 / 435 / 405 mm |
Scope of supply
Semi-hermetic four-cylinder reciprocating compressor with drive motor
Motor unit flanged onto the compressor housing
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 charge:
HG HC: BOCKlub G68
Sight glass
Prepared for capacity regulator (1 cylinder cover)
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)
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 5)
Capacity regulator 230 V - 1 - 50/60 Hz, IP65
1 capacity regulator = 50% residual capacity
Oil sump heater 230 V - 1 - 50/60 Hz, 140 W
Oil service valve
Water-cooled cylinder covers
Oil differential pressure sensor DELTA-P II 220-240 V -
1 - 50/60 Hz 5)
Connection piece suction and discharge valve in welding
design
Thermal protection thermostat per cylinder cover
Additional fan
230 V AC - 1 - 50 Hz, 97 W,
IP44
230 V AC - 1 - 60 Hz, 128 W 5)
Intermediate adapter for discharge line valve
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 |