Semi-hermetic, suction gas-cooled 6-cylinder reciprocating compressor in
compact design. 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 in solid metal design has a fold-back and removable hinged
lid with easy quick-release fasteners. The optional oil sump heater
is 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, if desired, the discharge gas
temperature.
Colour: blue (RAL 5000)
Technical data
HGX7/1620-4 S
Application | Refrigeration & AC |
Compressor refrigeration capacity | 71.00 kW |
Power consumption | 23.30 kW |
Current draw (400 V) | 47.30 A |
Mass flow | 0.497 kg/s |
at following operating condition:
Refrigerant | R134a |
Reference temperature | Dew point |
Evaporating temperature | 5.0 °C |
Condensing temperature | 50.0 °C |
Supply frequency | 50 Hz |
Voltage | 400 V |
Suction gas temperature | 20 °C |
Subcooling (outside cond.) | 0 K |
Number of cylinders / Bore / Stroke | 6 / 70 mm / 70 mm |
Displacement 50/60 Hz (1450/1740 ¹/min) | 140,60 / 168,70 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) | 83.0 A |
Max. power consumption 2) | 47.4 kW |
Starting current (rotor blocked) 2) | 268.0 / 373.0 A |
Motor protection | MP10 |
Protection terminal box | IP 65 |
Weight | 299 kg |
Max. permissible overpressure (g) (LP/HP) 3) | 19 / 28 bar |
Connection suction line SV | 54 mm - 2 1/8 " |
Connection discharge line DV | 42 mm - 1 5/8 " |
Lubrication | Oil pump |
Oil type R134a, R404A, R407A/C/F, R448A, R449A, R450A, R513A | BOCKlub E55 |
Oil type R22 | BOCKlub A46 |
Oil charge | 4,5 Ltr. |
Oil sump heater | 230 V - 1 - 50/60 Hz, 140 W |
Dimensions
Length / Width / Height | 830 / 510 / 500 mm |
Scope of supply
Semi-hermetic six-cylinder reciprocating compressor with drive motor
Single-section compressor housing with hermetically integrated electric motor
Oil pump
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
Possibility of connection of oil level controllers Traxoil 4)
Possibility for connection of oil pressure safety switch
MP54
Oil charge:
HG: BOCKlub A46
HGX:
BOCKlub E55
Two sight
glasses
Prepared for capacity regulator (2 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)
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
1-2
capacity regulator = 66/33% residual capacity
Oil sump heater 230 V - 1 - 50/60 Hz, 140 W
Oil service valve
Oil pressure safety switch MP54 230 V - 1 - 50/60 Hz,
IP20 5)
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
6)
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 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 |
6) | Mounted |