OPERATING INSTRUCTIONS for air-cooled semi-hermetic motor compressor Series HA 3

Transcription

1 OPEATING INSTUCTIONS for air-cooled semi-hermetic motor compressor Series HA 3 Types: HA 3/155-4 HAX 3/155-4 HA 3/190-4 HAX 3/190-4 HA 3/235-4 HAX 3/235-4 HA 3/275-4 HAX 3/275-4 HA 3/325-4 HAX 3/ DFEI - 1 -

2 Dear Customer, Bock compressors are top-quality, reliable, service-friendly quality products. Please comply with the following operating and maintenance instructions so that you can bene t from all advantages to the full and use your refrigerating system throughout its entire service life. If you have any questions about installation, operation and accessories, please contact our technical service department or your refrigerating system wholesale dealer or our representative. The Bock service team is available by phone under , by under mail@bock.de or on the internet under In addition, for German speaking countries we have set up a toll-free Bock hotline under / from Monday to Saturday between 8 a.m. and 9 p.m. Any suggestions you may have regarding the on-going development of our compressor, equipment and parts programme are welcome at any time. Please read the information summarised for you in this manual before starting work. It contains important instructions for safety, installation, initial commissioning and handling. In addition you will nd information on maintenance, spare parts and accessories. Some instructions are identi ed by special symbols with the following meaning: i WANING This symbol is used to indicate that inaccurate compliance or total failure to comply with the instructions could cause injury to persons or damage to the compressor or refrigerating machine This symbol indicates important additional instructions which you should observe during your work Bock Kältemaschinen GmbH Postfach D Frickenhausen Benzstr. 7 D Frickenhausen Fon: Fax: mail@bock.de The high quality standard of Bock compressors is guaranteed also by on-going further development of machine, features and accessories. This could possibly result in nonconformities between this present manual and your compressor. Please understand that it is not possible for any claims to be derived from the details, illustrations and descriptions. Your team at Bock Kältemaschinen GmbH - Subject to modi cations DFEI

3 Contents Contents DFEI Safety 4 Product description 5 Main function parts 5 Nameplate 6 Type code 6 Limits of application 7 Installation instructions 8 General 8 Pipe connections / pipes 8 Pipe installation 9 Shut-off valves 9 Electrical connection 10 General instructions 10 Direct start 10 Star delta starting 10 Main line diagram for direct start 11 Main line diagram for star delta starting 11 Electronic trigger MP Connection MP Function test MP ecommended circuit contactors and motor contactors 13 Oil sump heating 13 Ventilator motor 13 Initial commissioning 14 Leak test, evacuation 14 Filling with coolant 14 Operation checks 14 Liquid shocks 15 Lubrication / oil check 15 Connection of the oil level controller 15 Lubricants 16 Maintenance 16 Safety instructions 16 Service intervals 16 Maintenance and servicing kits 16 Screwed unions 17 Accessories 17 Technical speci cations 18 Connections 18 Dimensions 19 Declaration of conformity CE 96 and Manufacturer declaration

4 Safety Safety The Bock refrigerating compressors named in the title are intended for installation in machines (within the EU according to EU directive 98/37/EC Machinery Directive, 97/23/EC Pressure Equipment Directive and 73/23/EC Low Voltage Directive). Initial commissioning is only allowed when the compressor has been installed according to these instructions and the whole machine in which it is integrated has been tested and accepted according to the statutory regulations. Bock refrigerating compressors have been designed to state-of-the-art engineering. Safety for the user is given particular priority during the design stage. However, it is always possible for the refrigerating machine and operation thereof to pose unavoidable residual risks. This is why these instructions must be observed carefully by every person working at the compressor. Work on the compressor may only be carried out by persons whose technical training, skills and experience together with their knowledge of pertinent regulations and documentation means that they are capable of assessing the work to be carried out and detecting any possible dangers (trained staff as per DIN 31000) SAFETY INSTUCTIONS Caution! efrigerating compressors are pressurised machines and therefore require particularly careful and meticulous handling. Only quali ed staff are allowed to handle refrigerating compressors. National safety regulations, accident prevention regulations, technical rules and other speci cations (incl. EN 378 etc.) must be observed The compressor may only be operated in refrigerating systems, and only with coolants approved for this compressor by Bock. The maximum tolerable operating overpressure may not be exceeded (not even for test purposes). Pressure switches are required to safeguard the machine from excess pressures. New compressors are provided with an inert gas lling in the factory (approx. 3 bar nitrogen) The pressure in the compressor must be relieved before connecting up the refrigerating system. Before starting the compressor, check for any signs of transport damage. Before starting up, check that all components mounted by the user have been properly tted and are connected pressure-tight with the compressor (e.g. pipelines, bungs, union nuts, replaced parts, etc.) Before starting up, evacuate the refrigerating machine carefully with the compressor and then ll with coolant. Before starting the compressor, open the discharge shut-off valve and suction shut-off valve. Do not start the compressor in a vacuum. Only operate the compressor when the whole system has been lled. Surface temperatures of more than 100 C are possible on the pressure side respectively below 0 C on the suction side, depending on operating conditions DFEI

5 Product description Product description Hermetic four-cylinder two- self-reciprocating compressor with air-cooled drive motor. The suction gas is sucked straight into the compressor housing. The drive motor is outside the suction gas ow. The motor is cooled by a current of air generated by the ventilator. The ow of cooling air is guided deliberately over the motor. The discharged cooling air also lowers the operating temperature in the compressor housing. Preferred range of application: normal refrigeration and deep freezing. Main function parts Terminal box 10 Air de ection hood 9 Motor section 8 Compressor section DFEI Valve plate 2 Suction shut-off valve 3 Oil sump heating / Oil drain plug 4 Oil sight glass 5 Oil ller plug Transport eyelets 7 Connection for oil level regulator 8 Oil pump 9 Discharge shut-off valve 10 Connection for heat protection thermostat - 5 -

6 Product description Nameplate Type designation 2 Machine number 3 Maximum operating current 4 Start-up current (rotor blocked) 5 Max. Y: part tolerable windingoperating 1 overpressure YY: windings 1 and 2 5 Max. tolerable operating overpressure Type code 6 Voltage, switching, frequency 7 ated speedat at 50 Hz 8 Theoretical volume ow rate 9 Voltage, switching, frequency 10 ated speed } at 60 Hz 11 Theoretical volume ow rate 12 Oil grade lled by the manufacturer 13 Protection HA HG 34 / S Series Size Code for capacity size No. of poles } Motor version air-conditioning Compressors which have been lled with ester oil in the factory (e.g. for use with chlorine-free coolants such as 404A, 407C) are identi ed accordingly in the type designation by the suf x X (e.g. HGX HAX 3/325 4/650-4) DFEI - 6 -

7 Product description Limits of application Compressor operating mode: in normal operating mode with additional cooling L = deep-freeze range M = normal refrigeration range H = air-conditioning t o - evaporation temperature t c - condensing temperature t oh - suction gas temperature 20 C t oh - suction gas overheating 10 K DFEI - 7 -

8 Installation instructions Explanations of the limits of application diagrams Operation of the compressor is only possible within the limits shown in the diagrams. The limits must be observed. The maximum discharge end temperature of 140 C may not be exceeded. In the dark grey area, compressor operation is only possible with additional cooling. Additional cooling solutions can consist of additional fans (accessories) or water-cooled cylinder covers (accessories). We advise using heat protection thermostats (accessories). As a general rule: Only use thermally highly stable oils (see lubricant table)! ecommendation: for 22 Bock standard oil FUCHS eniso SP 46 for 134a, 404A, 407C, 507 Bock standard oil FUCHS eniso Triton SE 55 When using frequency transformers, please note that the limits of application can be restricted on reaching the maximum tolerable power consumption of the drive motor. Continuous operation in the limit zone is not recommended. Maximum permissible ON/OFF switching frequency of the drive motor: 12 switching cycles per hour. The whole machine must reach a state of equilibrium (constant operating conditions). ating values for operating ranges on request. Installation instructions Transport eyelet General Only lift the compressor at the transport eyelet. The hoisting gear must be suitable for the compressor weight. When erecting the compressor in a closed room, suf cient ventilation of the machine room air must be guaranteed. Do not operate the compressor in a corrosive atmosphere, dust, steam or ammable environment. Allow suf cient space for performing maintenance work. The compressor must be erected horizontally on anti-vibration pads or if necessary rigidly. Avoid any distortion in the compressor housing. Always consult the manufacturer before mounting the compressor in a slanting position! Direct erection on bundle pipe condensers only with anti-vibration pads. isk of vibration cracks and breakage with rigid installation! In addition, we recommend the installation of pipeline vibration compensators. Pipe connections / pipes Caution! Compressor is pressurised. Leave the inert gas lling in the compressor until initial commissioning. The shut-off valves should remain closed until evacuated. The pipe connections are suitable for all pipes of normal metric and inch dimensions. The solder connections of the shut-off valves are to be removed from the shut-off valves when soldering the pipes. Pipes and machine components should always be clean and dry on the inside, and free of cinders, metal chips, rust and phosphate coats. In addition, all parts to be tted to the compressor and to the whole machine must be delivered sealed air-tight DFEI - 8 -

9 Installation instructions Pipe installation Ensure there is provision for proper oil re ux Pipes and non-return valves must be dimensioned according to the operating points. Pressure losses must be kept to a minimum. Fix the pipes with fastening clips with rubber sleeves. Provide suitable vibration compensators for the pipes, ensuring they are mounted in the correct position. Prevent any vibration in the pipes, as these can cause cracks or breaks (caution! isk of coolant leaks). Check the whole machine regularly. Shut-off valves i Warning! Both shut-off valves - the suction and the discharge shut-off valve - must be opened before starting the compressor! Before opening or closing the shut-off valve, turn the valve spindle seal approx. 1 4 of a turn counter-clockwise. After activating the shut-off valve, tighten the valve spindle seal again clockwise. Valve spindle seal loosen tighten Opening the shut-off valve Open spindle 1 turning to the left (counter-clockwise) as far as it will go. Setting A Pipe connection Shut-off valve is fully open / service connection 2 closed (setting A). Compressor DFEI i Opening the service connection (2) Turn spindle 1 approx. 1 2 to 1 turn to the right (clockwise) Service connection 2 is now open, the shut-off valve is also open (setting B). Setting B Compressor Connection 3 is intended for safeguard systems and cannot be shut-off. Pipe connection - 9 -

10 Electrical connections Electrical connection General instructions The electrical connection of the motor is to be completed according to the main line circuit diagram (on the inside of the terminal box). When connecting up the compressor, always comply with the local electricity regulations (VDE 0100 for Germany). Use suitable screwed cable glands with protection class IP 54 for the cable leadthroughs at the terminal box. Use strain relief elements. Avoid any chafe marks on the cables. Motor contactors (see table), feed lines and fuses are to be rated according to the maximum operating current (see compressor nameplate). Compare the details for voltage and frequency on the nameplate with the details for the electricity mains supply. The motor may only be connected up when these details correspond. Connection The motor is connected in / Y in series. Designation on the nameplate: / Y Designation on the yellow label on the terminal box (see gur): In the factory, the motor is switched for direct starting (Y). Direct start (Example for motor 230 V / 400 V Y) Terminal box with bridges inserted for direct start: a) at low voltage (230 V / 3~): b) at high voltage (400 V Y/ 3~): Star delta starting Mechanical start unloader with bypass solenoid i (accessories) is required for star delta starting! For star delta starting (only in voltage range 230 V ) the bridges are to be inserted according to the circuit diagram in the lid of the terminal box. Delay time on switching over max. 2 seconds. Main line diagrams: 1-2 Connections for PTC sensor M2 Ventilator motor 1 PTC sensor motor winding K1 Mains contactor 2 Heat protection thermostat (PTC sensor) K2 contactor F1 Safety device load stabilisation circuit K3 Y-contactor F2 Fuse control power circuit K4T Time relay for contactor changeover F3 Safety chain (high/low pressure monitoring) K5T Time relay for start unloader B1 Enable switch(thermostat) AL Magnetic coil for start unloader Q1 Main switch A1 Electronic trigger MP 10 M1 Compressor motor S1 Switch control voltage DFEI

11 Electrical connections Main line diagram for direct start 230 V / 400 V Y Main line diagram for star delta starting at 230 V DFEI

12 Electrical connections Electronic trigger MP 10 The compressor motor is equipped with posistor temperature sensors (PTC) which are wired to the electronic trigger MP 10 in the terminal box. The stand-by mode is indicated by the light diode H3 (green) when mains voltage is applied. In the event of overtemperature in the motor winding, the device switches the compressor off and signal lamp H1 lights up red. In addition, the hot gas side of the compressor can be protected from overheating by heat protection thermostats (accessories). i When the device has triggered, this indicates an overload or intolerable operating conditions. Ascertain and eliminate the cause. The device has a reclosure preventing feature. After eliminating the fault, the device is quit by interrupting the mains power with the external alarm reset switch S1 (see main-line wiring diagram). The reclosure preventing feature is unlocked and LEDs H1 or H2 go off again. Connection of the electronic trigger MP 10 The electrical connection of MP 10 is to be completed according to the circuit diagram. The trigger is to be protected with a fuse (F) of max. 4 A, slow-acting. To guarantee the protection function, the electronic trigger is mounted as rst element in the control power circuit. Connections temperature monitoring: motor winding: terminals 1-2 hot gas side: terminals 3-4 WANING! Terminals 1-6 on the electronic trigger MP 10 and terminals PTC 1 and PTC 2 on the compressor terminal board (see diagram) may not come into contact with mains voltage. This would destroy the electronic trigger and the PTC sensors. Terminal board Function test of the electronic trigger MP 10 Before starting up and after any faults or changes to the control power circuit of the machine, check the electronic trigger to ensure that it functions properly: Procedure LED H1 LED H2 LED H3 red red green 1 Interrupt the power supply Disconnect the motor temperature sensor connection (terminal 1 or 2) OFF OFF OFF Disconnect the hot gas temperature sensor (if installed) (terminal 3 or 4) 2 Switch the power supply on again. ON Function check motor temperature sensor: stand-by ON Function check hot gas temperature sensor: stand-by ON 3 Interrupt mains voltage again Connect terminals 1 or 2 respectively 3 or 4 again OFF OFF OFF 4 Switch the power supply on again: MP in stand-by mode OFF OFF ON DFEI

13 Electrical connections DFEI ecommended circuit contactors and motor contactors The selected contactor types are make Moeller, but other comparable makes with equivalent performance data can also be used. Compressor Motor Max. operating - Devices for direct starting Devices for Y / - start cold type rated current (50 Hz) at 230 V - at 400 V - Y (only for voltage range ) at 20 C power 230 V 400 V Y Circuit Motor Circuit Motor Circuit cont. Motor contactor (KW) (A) (A) contactor contactor contactor contactor á 3 expl. (Imax=Ax0,57) Ω (Ohm) HA 3/ DIL-0AM PKZM0-16 DIL-00AM PKZM0-10 DIL-0M Z0-10 1,69-1,94 HA 3/ DIL-1M PKZM0-20 DIL-0M PKZM0-10 DIL-0AM Z0-16 0,9-1,1 HA 3/ DIL-1M PKZM0-20 DIL-0M PKZM0-16 DIL-0AM Z0-16 0,9-1,1 HA 3/ DIL-1AM PKZM0-20 DIL-0AM PKZM0-16 DIL-1M Z0-10 0,78-0,9 HA 3/ DIL-1AM PKZM0-20 DIL-0AM PKZM0-16 DIL-1M Z0-10 0,78-0,9 Oil sump heating When the compressor is at a standstill, coolant diffuses into the lubricating oil of the compressor housing, depending on pressure and ambient temperature. This reduces the lubricating capacity of the oil. When the compressor starts up, the coolant contained in the oil evaporates out through the reduction in pressure. The consequences can be foaming and migration of the oil, causing oil shocks under certain circumstances. In order to avoid damage to the compressor, the compressor is equipped with an oil sump heating as a standard feature. The oil sump heating should always be connected up and operated. Operation: The oil sump heating operates when the compressor is at a standstill. When the compressor starts up, the oil sump heating switches off again automatically. Connection: The oil sump heating must be connected via an auxiliary contact (or parallel wired auxiliary contact) of the compressor contactor to a separate electric circuit. El. data: 230 V ~ / 60 W WANING! The oil sump heating must not be connected to the electrical circuit of the safety control chain. Ventilator motor The ventilator motor for cooling the compressor is already wired in the terminal box. Please consult the main-line wiring diagram in the terminal box for the power supply and triggering via the compressor contactor. The ventilator motor is protected by a pressure controller. Electrical data: 230 V / 1 / Hz, 73 W, 0.55 A

14 Initial commissioning Initial commissioning The compressor has undergone trials in the factory and all functions have been tested. There are therefore no special running-in instructions. i Before starting up, check the compressor for any signs of transport damage! To protect the compressor from intolerable operating conditions, high- and lowpressure pressostats. Comply with the accident prevention regulations! Leak test, evacuation Check the refrigerating system for leaks without including the compressor (preferably with dried N2) In the following evacuation process, evacuate the machine rst, then include the compressor as follows: - elease the pressure in the compressor using the suction and pressure shut-off valves at service connection A 1 /B 1. - Open the suction and discharge shut-off valves - Evacuate the suction and high-pressure wide with the vacuum pump. - Vacuum 1.5 mbar while the pump is switched off. - epeat the procedure several times. The refrigerating machine is then dry and tight when the pressure increase in the refrigerating system is < 0.5 mbar/24h. WANING! Do not start the compressor in vacuum. Do not apply voltage, not even for test purpose (may only run after lling with coolant). The spark-over and leakage current distances of the terminal board connection bolts are reduced in a vacuum, this can cause damage to the winding and to the terminal board. Filling with coolant i i Caution! Wear personal safety gear! Check that the compressor suction and discharge shut-off valves are open. With the compressor switched off, ll the liquid coolant directly into the condenser or receiver, breaking the vacuum. Start the compressor. If the coolant needs topping up after starting the compressor, it can be topped up in vapour form on the suction side, or, taking suitable precautions, also in liquid form at the inlet to the evaporator. Avoid over lling the machine with coolant. To avoid shifts in concentration, zeotropic coolant blends (e.g. 407C) must always only be lled into the refrigerating system in liquid form WANING! Do not ll liquid coolant into the suction shut-off valve on the compressor. Do not mix additives with the oil and coolant. Operation check After initial commissioning has been completed, check that the machine complies with the tolerable operating conditions DFEI

15 Initial commissioning Liquid shocks WANING! Liquid shocks can cause damage to the compressor and leakage of coolant. To avoid liquid shocks, the following points should be observed: The whole plant must be properly designed. All components must be rated to be compatible with each other with regard to output (particularly evaporator and expansion valve). Suction gas overheating at the evaporator output should be min K (check setting of the expansion valve). The machine must reach a state of equilibrium. Particularly in critical systems (e.g. several evaporator points), measures are recommended such as replacement of liquid traps, solenoid in the liquid line, etc. Coolant should not move in the compressor when the machine is at a standstill. Lubrication / oil check After reaching equilibrium (constant operating conditions), check the oil level in the compressor. It should be visible in the lower section of the sight glass (see diagram). WANING! If larger quantities of oil have to be topped up, there is a risk of oil shocks. In this case, the oil return has to be checked. Normal oil level Connection of the oil level controller Oil level controlling systems have proven useful in compound systems with several compressors. Connection O is provided for tting an oil level controller (see dimensioned drawing). All customary oil level controllers make AC& and ESK can be connected up directly without needing an adapter (see diagram). For the electronic controller system TAXOIL S1A1 by SPOLAN the intermediate adapter ref.n is necessary. The oil level controller does not need a sight glass. 124 o 124 o 124 o M6 x 10 je 3 mal 3 hole connection diagram for ESK and AC& 3 hole connection diagram for TraxOil DFEI Mechanical oil level controller at connection O 47,6 124 o

16 Maintenance Lubricants Bock standard oil grade ecommended alternatives for H-CFCs (e.g. 22) FUCHS eniso SP 46 MOBIL SHC 425 SUNOIL Suniso 4 GS SHELL Clavus SD TEXAKO Capella WF 46 SUNOIL Suniso 3 GS for uorocarbons (e.g. 134a, 404A, 407C) FUCHS eniso Triton SE 55 FUCHS SEZ 32 MOBIL Arctic EAL 46 ICI Emkarate L 46 S SHELL Clavus 46 Information about other suitable supplementary or substitute oils is available in the Bock lubricant tables, and can also be found under Maintenance Safety instructions Caution! Comply with the safety instructions on page 4! Before any work is carried out on the compressor, switch the machine off and secure it to prevent it being switched on again. elieve the pressure in the system using an extraction device. Do not release coolant into the atmosphere! After maintenance has been completed, check the safety switch and check functions. Evacuate the compressor. emove the switching-on safeguard. Service intervals The compressor is to be kept in a clean, orderly condition by suitable care. In order to guarantee optimum operating safety and service life of the compressor, we recommend that you carry out the following servicing and checks at regular intervals: Oil change - not mandatory in series machines produced in the factory - for eld installation or operation in the application limit range, rst oil change after approx operating hours, then approx. every 3 years or 10,000-12,000 operating hours. Dispose of used oil properly, comply with national regulations. Function checks: leaks, running noises, pressures, temperatures, proper functioning of all additional equipment such as oil sump heating, pressure switch: once per year. Maintenance and servicing kits i Caution! Only use original BOCK spare parts! HA 3/155-4 HA 3/190-4 HA 3/275-4 HA 3/235-4 HA 3/325-4 Kit No. No. No. Seal kit Valve plate kit Oil sump hesting kit, 230 V ~ DFEI

17 Accessories Screwed unions Various installation, maintenance and servicing work entails intervention in the compressor. All work must therefore be performed with strict compliance with the given safety instructions. The following torques must be used when re-assembling the compressor: 8.8* 10.9* M5 8,5 Nm - M6 15 Nm - M8 34 Nm 37 Nm M10 60 Nm 75 Nm 7 M12 / Nm - 1 M16 / Nm Nm - * = screw quality, see screw head Notes: t seals in dry state, do not oil Cylinder head/valve plate: tighten screws from the middle outwards crosswise in at least two stages (torque 50/100%) Oil drain plug, oil sump heating M 22 x 1,5 100 Nm Start unloader AL plug 100 Nm Live connections M 6 3 Nm otor M Nm Accessories Special accessories are only premounted in the factory if ordered specially by the customer. etro tting is possible in full compliance with the safety instructions and installation instructions enclosed with the kits. Information about the use, operation, maintenance and servicing of the components is available in the printed literature or on the internet under Designation Kit article no. emarks Start unloader Only necessary for /Y starting Heat protection thermostat Connection provided as standard feature DFEI

18 Technical speci cations Technical speci cations No. of cylinders ated speed [1/min] at 50 Hz at 60 Hz Lubrication: Oil pump independent of direction of rotation Oil grade for 22: / oil lling [l]: Oil grade for X versions (for coolant llings e.g. 134a, 404A, 407C, 507) / oil lling [l]: Voltage / phases / frequency [V/Ph/Hz] max. tol. pressure Theoretical ow rate 50 Hz [m³/h] Theoretical ow rate 60 Hz [m³/h] max. operating current [A] Start-up current (rotor blocked) [A] Noise level [dba], L / M / H *) Weight incl.oil lling [kg] high pressure side HP: low pressure side LP: FUCHS eniso SP 46 / 1,5 FUCHS eniso Triton SE 55 / 1, / Y / 3 / / Y / 3 / HA 3/155-4 HA 3/190-4 HA 3/235-4 HA 3/275-4 HA 3/ ,6 16,7 20,3 24,1 28,3 16,3 20,1 24,3 28,9 33,9 12 / 7 18 / / / / / / / / / / 62 / - 64 / 62 / - 65 / 64 / - 66 / 65 / - 67 / 66 / *) Measuring conditions: low-re ection machine room, measuring distance: 1 m, compressor operating at rated speed 1450 rpm at 50 Hz, coolant 134a. When using other coolants the values are increased by approx db(a). Application ranges: L = deep-freezing range, M = normal refrigerating range, H = air-conditioning. Connections HA 3/155-4 HA 3/190-4 HA 3/235-4 HA 3/275-4 HA 3/325-4 SV Suction shut-off valve, pipe Ø solder connection (mm (inch)) 22 ( 7 / 8 ) 22 ( 7 / 8 ) 22 ( 7 / 8 ) 22 ( 7 / 8 ) 22 ( 7 / 8 ) DV Discharge shut-off valve, pipe Ø solder connection (mm (inch)) 16 ( 5 / 8 ) 16 ( 5 / 8 ) 16 ( 5 / 8 ) 16 ( 5 / 8 ) 16 ( 5 / 8 ) A Suction side connection, cannot be shut off (inch) A1 Suction side connection, can be shut off (inch) B Discharge side connection, cannot be shut off (inch) B1 Discharge side connection, can be shut off (inch) D1 Connection oil return from oil separator (inch) F Oil drain bung (oil lter) (mm) H Oil lling bung (mm) J Oil sump heating (mm) K Sight glass L Connection heat protection thermostat (inch) O Connection oil level controller (mm) 7/16 UNF 7/16 UNF 7/16 UNF 7/16 UNF 1/8 NPTF M 22 x 1,5 M 22 x 1,5 M 22 x 1,5-1/8 NPTF 3 x M DFEI

19 Dimensions Dimensions DFEI Height with vibration compensators: + 30 mm Anti-vibration pad

20 Declarations DECLAATION OF CONFOMITY CE 96 for use of the compressors within the European Union (as per EU low voltage directive 73/23/EEC, in the version 93/68/EEC) We herewith declare that the hermetic refrigerating compressors named in the title comply with the low voltage directive 73/23/EEC in the version 93/68/EEC. Applied harmonised standard EN (HD 277 S1) When installing our products in a machine, the following manufacturer declaration must be taken into consideration. MANUFACTUE DECLAATION for use of the compressors within the European Union (refering to the EU machinery directive 98/37/EEC, annex II B) We herewith declare that the hermetic refrigerating compressors named in the title in the version supplied by us are intended for installation in a machine which complies with the machinery directive 98/37/EEC. Applied harmonised standards EN EN 349 EN EN EN It is however not permitted to start up our products before the machine in which they are integrated has been tested according to the corresponding statutory regulations and declared to be conforming in all points DFEI