Semi-hermetic suction gas-cooled 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.
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 INT69 G (for installation
in the switch cabinet) uses PTC sensors in series to monitor the winding
temperature and optionally the discharge gas temperature. The compressor has to
be equipped with an oil sump heater (accessory).
Colour: blue (RAL 5000)
Technical data
HG44e/770-4 HC
| Application | Refrigeration & AC |
| Compressor refrigeration capacity | 30.00 kW |
| Power consumption | 11.60 kW |
| Current draw (400 V) | 20.80 A |
| Mass flow | 0.102 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 / 70 mm / 50 mm |
| Displacement 50/60 Hz (1450/1740 ¹/min) | 67,00 / 80,40 m³/h |
| Voltage 1) | 380-420V Y/YY -3- 50Hz PW |
| 440-480V Y/YY -3- 60Hz PW |
| Winding divided into | 70% / 30% |
| Max. working current 2) | 30.0 A |
| Max. power consumption 2) | 17.8 kW |
| Starting current (rotor blocked) 2) | 133.0 / 171.0 A |
| Motor protection | INT69 G |
| Protection terminal box | IP 65 |
| Weight | 168 kg |
| Max. permissible overpressure (g) (LP/HP) 3) | 19 / 28 bar |
| Connection suction line SV | 42 mm - 1 5/8 " |
| Connection discharge line DV | 28 mm - 1 1/8 " |
| Lubrication | Oil pump |
| Oil type R290, R1270 | BOCKlub G68 |
| Oil charge | 2,3 Ltr. |
| Oil sump heater | 230 V - 1 - 50/60 Hz, 160 W |
| Dimensions
Length / Width / Height | 695 / 360 / 385 mm |
Scope of supply
Semi-hermetic four-cylinder reciprocating compressor
with drive motor
Single-section compressor housing with hermetically integrated electric motor
Winding protection with PTC resistor sensors and
electronic trigger unit INT69 G
115-230 V AC, 50/60 Hz,
IP00
Oil pump
Possibility of
connection of oil level controllers ESK, AC+R or CARLY
Possibility of connection of oil level controllers Traxoil 4)
Possibility for connection of oil pressure safety switch
MP54
Oil charge:
HG HC: BOCKlub G68
Sight glass
Pressure relief valve
Suction and discharge line valve
Inert gas charge
4 anti-vibration pads enclosed
Accessories
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
Cylinder cover prepared for capacity regulator
Oil sump heater 230 V - 1 - 50/60 Hz, 160
W
Thermal protection thermostat per compressors 2x
possible
Oil service valve
Intermediate flange for discharge line valve on right or
left seen from oil pump
USB converter for INT69 G Diagnose 5)
Oil differential pressure sensor DELTA-P II 220-240 V -
1 - 50/60 Hz 5)
Connection piece suction and discharge valve in welding
design
Oil temperature sensor (Pt1000, for external evaluation)
5)
Rear bearing flange prepared for oil differential
pressure sensor DELTA-P II
INT69 G Diagnose 115-230 V AC, 50/60 Hz, IP00 (INT69 G
not applicable) 5)
DP-Modbus Gateway 115-230 V AC, 50/60 Hz, IP00 including
adapter cable 5)
Modbus-LAN Gateway 230 V AC, 50/60 Hz,
IP00 5)
Additional fan
230 V AC - 1 - 50 Hz, 97 W,
IP44
230 V AC - 1 - 60 Hz, 128 W 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 |