Semi-hermetic suction gas-cooled reciprocating compressor in compact design
of machine category 3 according to directive 2014/34/EU. Intended for use in
refrigeration systems inside explosion-endangered areas of the zone 2 (according
to ATEX Directive 1999/92/EG). The compressor complies with the following
ATEX classification according to the EC type examination
certificate:
- Standard painting: II 3G Ex db eb mb nA nC IIC T3 Gc (compressor with
conductive coating)
- Offhsore painting: II 3G Ex db eb mb nA nC IIB T3 Gc (compressor with
insulating coating)
In addition, the compressor has an
IECEx
approval with the following marking:
- Standard painting: Ex db eb mb nA nC IIC T3 Gc (compressor with conductive
coating)
- Offhsore painting: Ex db eb mb nA nC IIB T3 Gc (compressor with insulating
coating).
Further explanations see e.g. semi-hermetic catalogue.
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.
As standard an electronic trigger unit is monitoring the motor temperature
via PTC sensors and each cylinder cover via special thermal heat protection
thermostats (accessory) concerning the discharge end temperature. The electronic
trigger unit is supplied separately for installation in the switchboard (outside
the EX zone).
Color: blue (conductive coating RAL 5007, insulating coating: RAL 5000)
Technical data
EX-HGX8/2470-4 S 3G
| Application | Refrigeration & AC |
| Compressor refrigeration capacity | 107.00 kW |
| Power consumption | 36.60 kW |
| Current draw (400 V) | 74.40 A |
| Mass flow | 0.746 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 | 8 / 70 mm / 80 mm |
| Displacement 50/60 Hz (1450/1740 ¹/min) | 214,30 / 257,10 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) | 133.2 A |
| Max. power consumption 2) | 76.1 kW |
| Starting current (rotor blocked) 2) | 447.0 / 657.0 A |
| Motor protection | MP10 |
| Protection terminal box | IP 65 |
| Weight | 432 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 R134a, R404A, R407A/C/F, R448A, R449A, R450A, R513A | BOCKlub E55 |
| Oil type R22 | BOCKlub A46 |
| Oil charge | 9,0 Ltr. |
| Oil sump heater | 230 V - 1 - 50/60 Hz, 240 W |
| Oil service valve | 7/16" UNF |
| Dimensions
Length / Width / Height | 940 / 580 / 655 mm |
Scope of supply
Semi-hermetic eight-cylinder reciprocating compressor with drive motor for part winding start
380-420 V D/YYY - 3 - 50 Hz
440-480 V D/YYY - 3 - 60 Hz
Single-sectionCompressor housing with hermetically integrated electric motor
Oil pump
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 ESK, AC+R or CARLY 4)
Oil pump cover with screw-in option for oil differential
pressure sensor INT250 EX 4)
Possibility of connection of oil level controllers Traxoil 5)
Oil service valve
Oil charge:
HG: BOCKlub A46
HGX:
BOCKlub E55
Three sight glasses
Pressure relief valve
Suction and discharge line valve
Inert gas charge
4 anti-vibration pads enclosed
Accessories
Capacity regulator 230 V - 1 - 50/60 Hz, IP66
1-3
capacity regulator = 75/50/25% residual capacity,
explosion-proof, equipment
category 3 as per directive 2014/34/EU
Oil sump heater 230 V - 1 - 50/60 Hz, 240
W,
explosion-proof, equipment category 3 as per directive 2014/34/EU
6)
Thermal protection thermostat per cylinder cover
6)
Oil differential pressure sensor INT250
Ex,
explosion-proof, equipment category 3 as per directive 2014/34/EU
6)
Special painting Offshore (Compressor with insulating
coating) incl. Offshore terminal box
Special voltage and/or frequency (on request)
No further
accessories possible
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) |
| 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) | The operation of this components is only allowed with a
suitable protection class |
| 5) | The operation of this components is only allowed with a
suitable protection class.
Only with additional adapter possible.
|
| 6) | Enclosure |