Semi-hermetic suction gas-cooled reciprocating compressor in compact design
of machine category 2 according to directive 2014/34/EU. Intended for use in
refrigeration systems inside explosion-endangered areas of the zone 1 and 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 2G Ex db eb ia IIC T3 Gb (compressor with conductive
coating)
- Offhsore painting: II 2G Ex db eb ia IIB T3 Gb (compressor with insulating
coating)
In addition, the compressor has an
IECEx
approval with the following marking:
- Standard painting: Ex db eb ia IIC T3 Gb (compressor with conductive
coating)
- Offhsore painting: Ex db eb ia IIB T3 Gb (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 concerning the discharge end temperature. The electronic trigger
unit is supplied separately for installation in the switchboard (outside the EX
zone). The thermal heat protection thermostats are connected to the trigger unit
via an included safety barrier (which also has to be installed outside the EX
zone) and therefore they are integrated into an intrinsically safe electrical
circuit.
Color: blue (conductive coating RAL 5007, insulating coating: RAL 5000)
Technical data
EX-HGX12P/60-4 S
| Application | Refrigeration & AC |
| Compressor refrigeration capacity | 2.70 kW |
| Power consumption | 0.91 kW |
| Current draw (400 V) | 2.18 A |
| Mass flow | 0.019 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 | 2 / 34 mm / 34 mm |
| Displacement 50/60 Hz (1450/1740 ¹/min) | 5,40 / 6,40 m³/h |
| Voltage 1) | 380-420V Y -3- 50Hz |
| 440-480V Y -3- 60Hz |
| Max. working current 2) | 3.9 A |
| Max. power consumption 2) | 2.2 kW |
| Starting current (rotor blocked) 2) | 23.0 A |
| Motor protection | INT69 EX2 |
| Protection terminal box | IP 66 |
| Weight | 48 kg |
| Frequency range 3) | 30 -70 Hz |
| Max. permissible overpressure (g) (LP/HP) 4) | 19 / 28 bar |
| Connection suction line SV | 16 mm - 5/8 " |
| Connection discharge line DV | 12 mm - 1/2 " |
| Lubrication | Oil pump |
| Oil type R134a, R404A, R407A/C/F, R448A, R449A, R450A, R513A | BOCKlub E55 |
| Oil type R22 | BOCKlub A46 |
| Oil charge | 0,8 Ltr. |
| Dimensions
Length / Width / Height | 412 / 265 / 296 mm |
| Sound power level LWA 5) | 67 db(A) @ -35/+40 °C |
| 66 db(A) @ -10/+45 °C |
| 65 db(A) @ +5/+50 °C |
| Sound pressure level LpA 5) | 55 db(A) @ -35/+40 °C |
| 54 db(A) @ -10/+45 °C |
| 53 db(A) @ +5/+50 °C |
Scope of supply
Semi-hermetic
reciprocating compressor with drive motor
Single-section compressor housing with
hermetically integrated electric motor
Oil pump
2-channel safety barrier as energy limiting device in
self secure circuit in order to prevent firing through sparks or thermic
effects,
for fitting into switch cabinet (enclosed)
Winding protection with PTC resistor sensors. Electronic
triggering unit to be fitted in switch cupboard (enclosed)
Possibility of
connection of oil level controllers ESK, Traxoil, AC+R or CARLY 6)
Oil charge:
HG: BOCKlub A46
HGX:
BOCKlub E55
Sight glass
Suction and discharge line valve
Thermal protective thermostat for each cylinder
head
Inert gas charge
Accessories
Oil sump heater 230 V - 1 - 50/60 Hz, 80
W,
explosion-proof, equipment category 2 as per directive 2014/34/EU
(enclosure)
Special painting Offshore (Compressor with insulating
surface coating)
4 anti-vibration pads enclosed
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 |
| 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) | The maximum permissible working current of the compressor
(Imax) must not be exceeded. Take account of the guidelines for use of frequency
inverter (see compressor assembly instruction or selection software).
|
| 4) | LP = Low
pressure
HP = High pressure |
| 5) | Declared dual-number noise emission values are in
accordance with ISO 4871. The corresponding uncertainty to the sound power level
is KWA = 2,5 dB and to the sound pressure level is KpA =
2,5 dB. The values are valid for 50 Hz with the refrigerant R404A at the
standard rating points according to EN 12900.
- A-weighted sound power level LWA (re 1 pW), in decibel. To
determine the values, measurement methods of the ISO 3740 standard with
accuracy class 2 or higher were used .
- A-weighted sound pressure level LpA (re 20 µPa), in decibel.
The values are calculated from the sound power level in accordance with ISO
11203: LpA = LWA - Q2 at a distance of d = 1m
to the reference box.
|
| 6) | The operation of this components is only allowed with a
suitable protection class.
Only with additional adapter possible.
|