About these guidelines ....................1 Safety instructions ................... 1 1.1 Icon explanation ....................... 1 1.2 Safety statements ......................1 1.3 General instructions ......................2 Product description ..................3 2.1 General information about Copeland™ Stream CO semi-hermetic compressors for transcritical and subcritical applications ................... 3 2.2 Nomenclature ........................
Part-winding motors (YY/Y) – Code F ..............18 4.2.2 Star / Delta motors (Y/∆) – Code E ..............18 4.2.3 4.2.4 Terminal box isolators and jumpers position ............19 4.3 Wiring diagrams ......................20 4.3.1 Compressors with Next Generation CoreSense module ........20 4.3.2 Compressors with CoreSense Protection module ..........
Besides the support they provide, the instructions listed herein are also critical for the proper and safe functioning of the compressors. Emerson will not guarantee the performance and reliability of the product if it is misused in regard of these guidelines.
General instructions WARNING System breakdown! Personal injuries! Never install a system in the field and leave it unattended when it has no charge, a holding charge, or with the service valves closed without electrically locking out the system. System breakdown! Personal injuries! Only approved refrigerants and refrigeration oils must be used.
Product description General information about Copeland™ Stream CO semi-hermetic compressors for transcritical and subcritical applications These guidelines cover Copeland™ Stream CO semi-hermetic compressors. The Stream CO series of 4MTL* transcritical models ranges from 5 to 50 hp; the series of 4MSL* subcritical models ranges from 3 to 15 hp.
maximum standstill pressures of 135 bar at high side and 90 bar at low side – see Chapter 3.2.1 "Safety relief valves". Refrigerant flow and heat transfer have been optimized for best performance. NOTE: Throughout these guidelines, pressure values shown with the bar(a) or bar unit are absolute pressures.
POE oil. Large models (4MTL-35 to 4MTL-50) can alternatively be delivered on request with PAG oil. Oil recharge values can be taken from Copeland™ brand products Select software available at www.climate.emerson.com/en-gb. Qualified refrigerant R744 (CO Copeland brand...
Figure 4: Operating envelopes for transcritical applications with R744 – Models 4MTL-30 to 4MTL-50 Figure 5: Operating envelope for subcritical applications with R744 – Models 4MSL-03 to 4MSL-15 2.4.3 Recommendations for minimum suction superheat – Lubrication conditions The operation of CO compressors at conditions where the viscosity of the oil is low might become very harmful with regard to compressor lifetime expectancy.
discharge shut-off valve) the temperature is expected to be 15-20 K lower than inside the cylinder head. This fact must be taken into account when applying the values in Table 4 below. Maximum acceptable discharge Minimum Minimum oil temperature Application superheat temperature required...
Compressor Transcritical Lubrication Subcritical Lubrication size mode system mode system 4MTL-05 4MSL-03 Small 4MTL-07 Splasher 4MSL-04 Splasher 4MTL-09 4MSL-06 4MTL-12 4MSL-08 Medium 4MTL-15 Splasher 4MSL-12 Splasher 4MTL-30 4MSL-15 4MTL-35 Large 4MTL-40 Oil pump 4MTL-50 Table 5: Lubrication system on Stream CO compressors 2.5.4 Oil level Small- and medium-size models (4MSL-03 to 4MSL-15, 4MTL-05 to 4MTL-30) are equipped with...
More information about this product can be found Figure 11: TraxOil OM5 with sight glass & coil at www.climate.emerson.com/en-gb. 220.127.116.11 Oil level monitoring system OW4/OW5 TraxOil The OW4 and OW5 TraxOil are intended for systems which only require oil level monitoring and alarming and do not need active oil level balancing.
(SPDT) changes into alarm state. The alarm contact may be used to shut down the compressor. The alarm will be reset when the oil level goes back to normal. More information about this product can be found at www.climate.emerson.com/en-gb. AGL_Stream_ST_4MTL_4MSL_E_Rev01...
Installation WARNING High pressure! Injury to skin and eyes possible! Be careful when opening connections on a pressurized item. Compressor handling 3.1.1 Delivery Please check whether the delivery is correct and complete. Any deficiency should be reported immediately in writing. Standard delivery: ▪...
Figure 14: Compressor lifting 3.1.4 Installation location Ensure the compressors are installed on a solid level base. Horizontal installation is recommended. Temperatures around the compressor should not exceed 65 °C in order to avoid suction gas temperature increase and malfunctioning of electronics. 3.1.5 Mounting parts To minimize vibration and start/stop impulses flexible mounting should be used.
Pressure safety controls 3.2.1 Safety relief valves CAUTION High pressure! System leak! In the event that a pressure relief valve activates repeatedly, check and replace it as needed in order to avoid a permanent leak. Always check system for CO loss after activation of the pressure relief valve.
Copeland brand products Select software www.climate.emerson.com/en-gb. Shut-off valves Stream CO compressors are factory-equipped with shut-off valves on both the suction and discharge sides. The shut-off valves are suitable for welding and brazing. Suction connection Discharge connection Flange...
Electrical connection General recommendations The compressor terminal box has a wiring diagram on the inside of its cover. Before connecting the compressor, ensure that the supply voltage, the phases and the frequency match the nameplate data. The knockouts have to be removed before the electrical glands can be installed. First make sure that the terminal box is closed with the terminal box cover.
4.2.4 Terminal box isolators and jumpers position 18.104.22.168 Part-winding motors (AW… or FW…) Part-winding motors can be connected Direct-On-Line or part-winding start. Make sure that the 2 wires (L2) which are guided through the current sensor are in the same direction. The black wire (voltage sensing) from the sensor module must be connected to the same terminal as the wires that are guided through the current sensor.
Wiring diagrams 4.3.1 Compressors with Next Generation CoreSense module IMPORTANT For small and medium compressor models (4MTL-05 to 4MTL-30 & 4MSL-03 to 4MSL-15), the blue positions 1U, 2V, 3W, 7Z, 8X, 9Y diagrams below must be considered. The position of the terminals in large models (4MTL-35 to 4MTL-50) is inverted and corresponds to the black positions.
part) for part-winding and Star/Delta motors (AW… & EW…) 22.214.171.124 Wiring diagram (2 Legend B1 ... Discharge gas sensor DGT .. Discharge gas temperature monitoring B2 ... Oil level watch (TraxOil) OW ..Digital oil level watch B3 ... Oil differential pressure switch (OPS) OPS ..
Protection devices Independently from the internal motor protection, fuses must be installed before the compressor. The selection of fuses has to made according to VDE 0635, DIN 57635, IEC 269-1 or EN 60-269-1. Next generation CoreSense™ Next Generation CoreSense™ (or Next Gen CoreSense) is standard in all 4MTL* and 4MSL* Stream semi-hermetic compressors.
Basic features Motor overheat protection High discharge temperature protection Oil level protection (in combination with Insufficient oil pressure protection Emerson TraxOil) Current protection Phase failure protection Voltage imbalance protection Undervoltage and overvoltage protection Power consumption measurement Part-winding protection Crankcase heater control...
Protection class of the module: IP20. CoreSense™ Diagnostics (until December 2019 included) CoreSense™ Diagnostics was mounted on 4MTL* and 4MSL* Stream compressors up to December 2019 included. Stream compressors with "-D" at the end of the description are equipped with a CoreSense Diagnostics device.
Crankcase heater IMPORTANT Oil dilution! Bearing malfunction! Turn the crankcase heater on 12 hours before starting the compressor. A crankcase heater is used to prevent refrigerant from migrating into the compressor shell during standstill periods. It is always required for 4MTL* and 4MSL* Stream compressors. 4MTL* and 4MSL* Stream compressors use a 100-Watt crankcase heater available in 115 V or 230 V.
Remove the plug before heater installation. The crankcase heater is secured into position. Insert the heater in the hole. It is also possible to secure the heater more firmly The mounting ring (preassembled on the by using a rubber hammer on the flat surface. heater before insertion) has to be pressed into the hole.
Start-up & operation WARNING Diesel effect! Compressor destruction! The mixture of air and oil at high temperature can lead to an explosion. Avoid operating with air. Leak test As a general rule, the reduction of leaks is a legal obligation. Refrigeration systems must be checked for leakage before they get into operation.
This phenomenon strongly depends on the system design and operating conditions. Emerson conducted extensive tests to investigate compressor behaviour in terms of resonances. The testing indicates that the following hardware variables have a significant impact on possible resonances: ▪...
NOTE: Performance data and envelopes are published in Copeland brand products Select software at www.climate.emerson.com/en-gb. AGL_Stream_ST_4MTL_4MSL_E_Rev01...
Since POE holds moisture more readily than mineral oil it is more difficult to remove it through the use of vacuum. Compressors supplied by Emerson contain oil with low moisture content, and it may rise during the system assembling process. Therefore it is recommended that a properly sized filter-drier is installed in all POE systems.
Figure 40: Oil removal plug location Oil additives Although Emerson cannot comment on any specific product, from our own testing and past experience, we do not recommend the use of any additive to reduce compressor bearing losses or for any other purpose. Furthermore, the long-term chemical stability of any additive in the presence of refrigerant, low and high temperatures, and materials commonly found in refrigeration systems is complex and difficult to evaluate without rigorously controlled chemical laboratory testing.
Appendix 2: Tightening torques in Nm Figure 42: Tightening torques around oil pump M24 X 1.5 3/8" - 16 UNC Pressure relief valve Shut-off valve screws 90 - 110 Nm 36 - 44 Nm LP/HP side Discharge and suction SW 24 mm SA 8 mm Shut-off valve cap 3/4"...
Figure 43: Hexagon socket screws (Allen / Inbus) & hexagon heads (Wrench) The ranges of torque values given in this specification are assembly torques. Torque after joint relaxation must be within 15 % of the minimum assembly torque unless re-torque is called for and must not be above 10 % of the maximum assembly torque.
3. Emerson does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson product remains solely with the purchaser or end user.
The Emerson logo is a trademark and service mark of Emerson Electric Co. Emerson Climate Technologies Inc. is a subsidiary of Emerson Electric Co. Copeland is a registered trademark and Copeland Scroll is a trademark of Emerson Climate Technologies Inc.. All other trademarks are property of their respective owners.