VSS/VSR/VSM single screw compressor Operation and service manual
Important Message READ CAREFULLY BEFORE INSTALLING AND STARTING YOUR COMPRESSOR. The following instructions have been prepared to assist in installation, operation and removal of Vilter™ Single Screw Compressors. Following these instructions will result in a long life of the compressor with satisfactory operation. The entire manual should be reviewed before attempting to install, operate, service or repair the compressor. A compressor is a positive displacement machine. It is designed to compress gas.
Table of Contents Important Message ..............................................................................................................3 Standard VILTER Warranty Statement ..................................................................................6 Standard VILTER 5/15 Warranty Statement ..........................................................................7 Long Term Storage Requirements .........................................................................................
Standard VILTER Warranty Statement Seller warrants the products it manufactures to be free from defects in material and workmanship for a period of eighteen (18) months from the date of shipment from Seller’s manufacturing plant or twelve (12) months from date of installation at the initial end users location, whichever occurs first.
Standard VILTER 5/15 Warranty Statement The seller extends warranty, from date of shipment, to a period of fifteen (15) years on all compressor bearings, five (5) years on all internal compressor parts and two (2) years on the remainder of the parts on single screw compressor units. If within such period any such product shall be proved to Seller’s satisfaction to be defective, such product shall be repaired or replaced at Seller’s option.
Long Term Storage Requirements The procedure described is a general recommendation for long term storage (over one month of no operation) of Vilter Manufacturing packages and compressors. While this procedure is intended to cover most of the commonly encountered situations, it is the responsibility of the installation firm and end user to address any unusual conditions. We suggest using the accompanying Long Term Storage Log sheet for recording purposes to validate the appropriate procedures.
Long Term Storage Requirements 2) Cover the unit completely to exclude dirt, dust, moisture, and other foreign materials. 3) If the motor can be moved, it is suggested that the entire motor be encased in a strong, transparent plastic bag. Before sealing this bag, a moisture indicator should be attached to the side of the motor and several bags of silica-gel desiccant put inside the bag, around the motor.
Description COMPRESSOR The Vilter Single Screw Compressor is a positive displacement, capacity and volume controlled, oil flooded, rotary compressor which uses a single main screw intermeshed by two opposing gate rotors. Gas compression occurs when the individual fingers of each gate rotor sweep through the grooves, or flutes, of the main screw as the screw rotates.
Description The Vilter compressors feature the exclusive Parallex™ Slide System, which consists of a pair of slides for each gate rotor assembly. These two independently operated slides are referred to as the capacity slide and the volume ratio slide. On the suction end of the screw, the capacity slide moves to vary the timing of the beginning of the compression process.
Foundation Introduction Vilter Single Screw compressor units are low vibration machines. Under most conditions, no elaborate foundation is necessary. However a sound foundation maintains motor alignment and proper elevation, and is therefore required. Provided are recommendations for the foundation and anchoring of the compressor unit. The Vilter foundation supports the entire operating weight of the unit and is suitable for years of continuous duty.
Foundation Building the Foundation Use the Vilter General Arrangement (GA) and foundation drawings to help secure a building permit and foundation construction. The Vilter GA drawing will have the necessary dimensions required to determine the overall foundation size and where to locate the compressor unit on the foundation. It will also show the dimensions required to form up the housekeeping piers that the compressor unit rests on.
Foundation G.A. G.A. COMPRESSOR UNIT CENTER LINE OF GAS COMPRESSION SYSTEM 6" EL. TOP OF GRADE # 6 @ 12" EACH WAY TOP & BOTTOM EXCAVATE TO FROST DEPTH AS REQ'D AND BACKFILL WITH CLSM OR NON-FROST SUSCEPTIBLE FILL Figure 2. Concrete Pad with Compressor Unit Dimensions - Front View Once the site has been excavated and prepared, place four inches of sand down on the bed where the foundation will rest. The sand must be compacted before placing the forms and rebar.
Foundation Compressor Unit Installation Once the foundation has cured, the compressor unit can be placed on the foundation, see Figure 4. Foundation with Housekeeping Pads Dimensions - Top View and Figure 5. Housekeeping Pad Dimension Detail - Top View. With the appropriate material handling equipment, lift the compressor unit by locations shown on the Vilter GA drawing and slowly place it on the foundation housekeeping piers.
Foundation 1" (TYP.) G.A. G.A. CENTER LINE G.A. G.A. G.A. + 2" G.A. G.A. (2) - # 4 CLOSED TIES (5) - # 6 VERT. WITH STD. 90° HOOK AT BOTTOM EACH FACE 5/8" DIA. HILTI HAS SS THREADED ROD (HAS-E RODS ARE ACCEPTABLE FOR INTERIOR INSTALLATIONS) INSTALLED USING HIT-ICE/HIT-HY 150 ADHESIVE ANCHORING SYSTEM. (5" PROJECTION, 12 3/8" EMBEDMENT.) HOLES TO BE INSTALLED WITH HAMMER DRILL. DO NOT DIAMOND CORE. (TYP.) Figure 5.
Foundation 70+6 .') *1.& &190 076 010Ä5*4+0- '21:; )4176 9#5*'4 /+0 .'8'.+0) 076 4'%1//'0&'& (14 *175'-''2+0) #0%*14 $1.6 %10%4'6' $#5' Figure 7. Concrete Pad Housekeeping Detail Leveling and Grouting The unit should be level in all directions. Wet the concrete pad according to the grout manufacturer’s directions. Mix a sufficient amount of grout. The grout must be an expanding grout rather than shrinking to provide a tighter bond.
Foundation Operation and Performance The foundation was designed for: • Outside environment severe exposure • Ambient temperature -10 degrees F to 105 degrees F • Unit weight 20,000 lbs • RPM 3600 • Soil bearing capacity 1,500 lbs/sq.ft. • Wind speed 120 MPH • Exposure factor D • Wind importance factor 1.15 • Concrete poured on and permanently cast against the earth General Design Requirements The compressor foundation is designed to: • Maintain the compressor in alignment and at proper elevation.
Rigging and Lifting Thank you for purchasing a gas compressor (the “Compressor”) from Vilter Manufacturing LLC (“Vilter”). Rigging and Lifting a large piece of equipment like the Compressor is extremely dangerous. **DISCLAIMER** Notice This rigging and lifting manual (this “Manual”) is provided to you as a courtesy by Vilter and is not intended to be a comprehensive guide to rigging and lifting the Compressor.
Rigging and Lifting Training curriculum for Participants, at a minimum, should include: • • • • • • • A review of safe operating practices; A review of who each person is and their specific role in the lift; A tutorial on how to read lift charts; A demonstration on how to use and inspect rigging hardware; A review of the company’s general lift plans and procedures; A tutorial on hand signals normally used to communicate with crane operators (a copy of such hand signals may be obtained from machine safety
Rigging and Lifting • • • • Get third-party confirmation that the crane owner and the crane operator are in compliance with applicable laws, regulations and internal safety standards; Consult with the crane owner to determine if any site preparation is required for outriggers—improper use of outriggers is a significant cause of crane failure; Determine the level of supervision to be supplied by the crane owner; and Review all crane maintenance and inspection records, including without limitation, the cran
Rigging and Lifting CONTACT VILTER While Vilter will not offer any specific feedback on the Plan or provide a specific Plan for rigging and lifting the Compressor, Vilter may be able to answer questions about the Compressor that are important in developing your Plan. Please contact Vilter at: P.O. Box 8904 5555 S Packard Ave Cudahy, WI 53110-8904 Telephone: 1-414-744-0111 Fax: 1-414-744-3483 email: info.vilter@emerson.com www.vilter.
Installation I. DELIVERY INSPECTION II. Vilter screw compressor components are thoroughly inspected at the factory, assuring the shipment of a mechanically perfect piece of equipment. Damage can occur in shipment, however. For this reason, the units should be thoroughly inspected upon arrival. Any damage noted should be reported immediately to the transportation company.
Installation Care must be taken to avoid trapping the lines except for specific purposes. When traps are used, the horizontal dimensions should be as short as possible to avoid excessive oil trapping. Lines for ammonia systems must be of steel pipe with specially designed ammonia service fittings. Common pipe fittings must NEVER be used as they will not provide the same service. Steel pipe is generally used in large installations when joints are welded.
Installation These precautions will avoid costly damage to the equipment due to freezing. This information is taken from ASHRAE 15-89 and ANSI B31.5. The installing contractor should be thoroughly familiar with these codes, as well as any local codes. IV. ELECTRICAL CONNECTIONS The single screw compressor units are shipped with all package mounted controls wired. The standard control power is 115 volts 60 Hertz, single phase. If a 115 volt supply is not available, a control transformer may be required.
Installation valves on the lowest part of the system so the gas will float away from the compressor. This prevents any dirt or foreign particles from entering the compressor and contaminating the working parts. The oil should then be charged into the compressor. Charge a small amount of ammonia into the system and pressurize the system to its respective design pressure. Pass a lit sulfur stick around all joints and connections. Any leaks will be indicated by a heavy cloud of smoke.
Installation To begin the second evacuation, allow the pump to operate and reduce the pressure again to within 50 to 1000 microns. After this reading is reached, allow the pump to operate 2 or 3 hours. Stop the pump and let the system stand with this vacuum. Again using dry nitrogen, raise the system pressure to zero. For the third evacuation, follow the previous procedure with the pump operating until system pressure is reduced below the 1000 micron level.
Installation After the system is leak-free and evacuation has been completed, it is ready for charging. Before actual charging, however, the entire operation of the refrigeration system should be inspected as outlined below: A. 1. 2. 3. 4. 5. 6. 7. 8. B. 1. 2. 3. 4. 5. 6. C. 1. 2. 3. 4. 5. D. Fans on air handling equipment running. Pumps on water cooling equipment running. Proper location and attachment of thermostatic expansion valve bulb to suction line. Correct fan and pump rotation.
Installation should show no bubbles, and there will be a liquid seal in the receiver. If these two conditions are not satisfied, additional refrigerant must be added. 5. When sufficient refrigerant has been charged into the system, close the charging and drum valves. Then remove the drum from the system. 6. During the charging period, observe the gauge carefully to insure no operating difficulties. Watch head pressures closely to make sure the condensers are functioning properly.
Installation 17. Clean all oil strainers. tightened, all plugs that were removed are replaced with a suitable thread filling compound, all packing glands on valve stems are tightened, and all valve caps are replaced. When operation is restored, all joints opened or any valves moved during the servicing should be checked for leaks. 18. Clean suction strainer – compressors. G. 19. Check motors and fans for shaft wear and end play. On a continual basis: 15.
Stop Check Valve Installation Correct Correct Wrong Wrong Verify the location of the Spring and note the Vilter name. Installation: The new design will apply only to the 2” thru 4” stop valves. Retrofitting a field installation will require replacing the bonnet assembly. The bonnet must be installed with the spring towards the bottom (see illustrations above).
Coupling Installation B. Straight Bore: 1. Install key(s) in the shaft. If the hub is an interference fit, heat the hub in an oil bath or oven until bore is sufficiently larger than the shaft. 350º F. is usually sufficient. An open flame is not recommended. However, if flame heating is necessary, use a very large rose bud tip to give even heat distribution. A thermal heat stick will help determine hub temperature. DO NOT SPOT HEAT THE HUB OR DISTORTION MAY OCCUR.
Installation will result in a flexing element that is centered and parallel to its mating flange faces. Move the connected equipment to accomplish the above. Note: Alignment of C-Flange Units should be checked when compressor or motor are replaced. NOTE: The disc pack is designed to an optimal thickness and is not to be used for axial adjustments. See documentation that came with the coupling for complete specifications. 3. Angular Alignment.
Installation 4. Torque the long bolt locknuts at this time. NOTE: With the coupling in good alignment, the bolts will fit through the holes in the flanges and the disc pack more easily. It is recommended that all locknuts be retightened after several hours of initial operation. 5. For further help with the installation or alignment, consult Rexnord. F. Disc Pack Replacement. If it becomes necessary to replace the disc pack, it can be done as follows: 1.
Slide Valve Actuator Installation & Calibration Slide Valve Actuator Installations Instructions 3. Caution WHEN INSTALLING THE OPTICAL SLIDE MOTOR, LOOSEN LOCKING COLLAR BEFORE SLIDING THE COLLAR DOWN ON THE SHAFT. DO NOT USE A SCREWDRIVER TO PRY LOCKING COLLAR INTO POSITION. OVERVIEW Calibration of an optical slide valve actuator is a two step process that must be done for each actuator installed of the compressor. Briefly, the steps are as follows.
Slide Valve Actuator Installation & Calibration Caution: there are wires attached to the connector on the plastic cover. Handling the cover too aggressively could break the wires. 7. Gently lift the cover and tilt it toward the Turck connectors. Raise the cover enough to be able to press the blue calibrate button and be able to see the red LED on the top of assembly. 8. Press “Menu” on the main screen and then press the “Slide Calibration” button, to enter the slide calibration screen.
Slide Valve Actuator Installation & Calibration 21. Use the INC button to rotate the actuator towards its maximum position while watching the millivolt readout on the controller screen. Discontinue pressing the INC button when the millivolt reading in the “Current” window is approximately 9200 millivolts (7900 millivolts for the 2783J qualified analog boards). You are nearing the mechanical stop position. 22.
Slide Valve Operation Slide Valve Actuator Operation The slide valve actuator is a gear-motor with a position sensor. The motor is powered in the forward and reverse directions from the main computer in the control panel. The position sensor tells the main computer the position of the slide valve. The main computer uses the position and process information to decide where to move the slide valve next. The position sensors works by optically counting motor turns.
Slide Valve Actuator Trouble Shooting Guide Problem The actuator cannot be calibrated Reason Dirt or debris is blocking one or both optocoupler slots Clean the optocoupler slots with a Q-Tip and rubbing alcohol. The photochopper fence extends less than about half way into the optocoupler slots Adjust the photochopper so that the fence extends further into the optocoupler slots.
Slide Valve Actuator Trouble Shooting Guide Problem The actuator does not transmit the correct position after a power loss Reason The motor was manually moved while the position sensor was not powered. The motor brake is not working properly There is a rapid clicking noise when the motor is operating The motor operates in one direction only The motor will not move in either direction The motor runs intermittently, several minutes on, several minutes off 40 Solution Recalibrate.
Slide Valve Actuator Trouble Shooting Guide Problem Reason The motor runs sporadically The motor runs but output shaft will not turn Solution Bad thermal switch Replace the actuator. Any of the reasons listed in “The motor will not move in either direction” See above. Stripped gears inside the gear motor or the armature has come unpressed from the armature shaft Replace the actuator. Slide Valve Actuators communicate problems discovered by internal diagnostics via LED blink codes.
Slide Valve Actuator Trouble Shooting Guide *__________________ This indicates a skipped state in the patterns generated by the optocouplers as the motor moves. This error means that the slide valve actuator is no longer transmitting accurate position information. The actuator should be recalibrated as soon as possible. This code will not clear until the actuator is recalibrated. This code can be caused by: 1.
Operation Section Notice on using Non -Vilter Oils Oil and its additives are crucial in system performance. Vilter Manufacturing will NOT APPROVE non-Vilter oils for use with Vilter compressors. Due to the innumerable choices available it is not possible for us to test all oils offered in the market place, and their effects on our equipment. We realize that customers may choose lubricants other than Vilter branded oil. This is certainly within the customers’ right as owners of the equipment.
Operation OIL SYSTEM A. Oil Charge Charge the oil separator with the proper quantity of lubricating oil (see Table 2 in the Installation Section). CAUTION It is imperative you charge the oil into the receiver/ separator prior to energizing the control panel to prevent burning out the immersion heater in the separator/receiver. During operation, maintain the separator oil level in the normal operating range between the two bullseye sight glasses.
Operation Loosen and remove the locking ring on filter tank by turning in a counter clockwise direction. Remove filter tank with the used element. To replace the filter element(s), on single element tanks, insert the element and make sure it fits onto the outlet connection. Install spring plate, and bolt the cover assembly in place. On units equipped with dual element tanks, insert inner element and make sure it fits onto the outlet connection.
Operation Wet the O-ring in the new element with clean refrigeration oil. Insert the new element into the filter tank with the closed end visible and attach the cover to the bowl. HAND TIGHTEN the cover. The filter housing can be evacuated and then slowly pressurized to check for leaks before returning to service. 4. Filter Removal, VSS and VSM Units (after 5/1/00) when using Vilter Part Numbers 3109A (16” Duplex), or 3110A (39” Du plex) oil filter housings.
Operation FIGURE 3. TYPICAL WATER COOLED OIL COOLER DIAGRAM The solenoid valve provides positive water shutoff when the compressor is not in operation. A temperature of 150°F is considered high in most circumstances and the compressor is protected by a safety control to prevent operation of the compressor above this temperature. Unless otherwise specified, the oil cooler is sized for an 85°F water inlet temperature and 10°F temperature rise. 2. Liquid Injection Oil Cooling.
Operation As the oil and desupserheating load varies, the temperature controller adjusts the speed of the pump/motor combination to maintain a constant oil temperature. NOTE: See separate V-PLUS® instruction manual for detailed start-up and operation. 4. Thermosyphon Oil Cooling Using a brazed plate or an one pass shell and tube type vessel, similar to the water cooled oil cooler, oil is circulated on the shell side and liquid refrigerant from the receiver is circulated through the tubes.
Operation “Manual-Auto” button is pressed, the oil pump will start. When sufficient oil pressure is built up and the compressor capacity control and volume ratio slide valves are at or below 10%, the compressor unit will start. If the compressor is in the automatic mode, it will now load and unload and vary the volume ratio in response to the system demands. Stopping the compressor unit can be accomplished a number of ways.
Operation The Motor Amps Load Limit protects the compressor from overloading by decreasing the compressor capacity if the motor amperage is at the Maximum Amps setpoint, or preventing an increase in capacity if the motor amperage is above the Full Load Amps setpoint. ( See manual for the appropriate microprocessor.) A detailed explanation of all safety setpoints can be found in the Compact Logix PLC manual, p/n 35391CL. 1.
Operation 3. Suction Pressure Low suction pressure cutout stops the compressor unit when the suction pressure drops below the setpoint. 4. Oil Filter Differential High oil filter differential cutout stops the compressor unit when the difference between the outlet and inlet of the filter exceeds the setpoint. 4. Manually open the oil isolating valve at the oil separator outlet connection. 5. Open the isolating valve(s) before and after the oil filter housings. 6.
Pre Start-Up Checklists The following checklists are to help prepare the equipment before the Vilter Technician arrives at the jobsite. Vilter recommends that a Trained Technician go through the following tasks. The operating Manuals provided by Vilter, can be referenced for any type of questions or special instructions. Every Refrigeration unit includes a Vilter Start-Up (Confirm on PO). The following tasks are not included in the Vilter Start-up provided in your equipment purchase.
Field Piping and Mechanical Requirements NOTE: If start-up service has been purchased, the following items should be completed before the startup technician arrives. This will help save time and money. 1. The unit should be leveled and secured to the mounting pad or floor. 2. The suction and Discharge line must be piped and properly supported, independent of the unit 3.
Field Wiring Requirements VRS SCREW COMPRESSOR, VSS/VSM SINGLE SCREW COMPRESSOR UNITS PRESTART-UP CHECKLIST FIELD WIRING REQUIREMENTS FOR UNITS WITH FACTORY WIRED VISSION® MICROPROCESSORS NOTE: If startup service has been purchased, to save time and money, the following items should be completed before the startup technician arrives. The unit is pre-wired at the factory. The necessary field wiring connections are described below. 1.
Stop Check Valve Operation AUTO In the “Auto Position”, the stop valve is operating as a check valve, allowing flow in the directions of the arrows. To set the valve to the automatic position, fully close the valve, and turn the stem out as indicated by the chart below. CLOSED In the manually “Closed Postion”, the stop check is operating as a conventional stop valve, not allowing flow in either direction.
Service GENERAL COMMENTS When working on the compressor, care must be taken to ensure that contaminants (i.e. water from melting ice, dirt and dust) do not enter the compressor while it is being serviced. It is essential that all dust, oil or ice that has accumulated on the outside of the compressor be removed before servicing the compressor. When servicing the compressor, all gaskets, O-rings, roll pins and lock washers must be replaced when reassembling the compressor.
Service INSTALLATION OF THE COMPRESSOR A) After the work has been completed, reinstall the compressor on the base or C-flange adapter (dependent upon compressor model). B) On the units, replace the shims under the compressor feet. Check for a soft foot. This is accomplished by tightening down three of the hold down bolts and checking the clearance under the fourth compressor foot. If there is clearance, add the appropriate amount of shims.
Service Top View Rotor Being Pushed By Use Of Lever Direction of rotor movement. Axial force at coupling to be 250-300lbs. Rigidly attach dial indicator. Position it on the axis of the compressor. Force to be determined by length of level arm. COMPRESSOR INSPECTION The Vilter Single Screw Compressor is designed for long periods of trouble free operation with a minimum of maintenance. However, a yearly inspection is recommended so any irregular wear is noted and rectified.
Service 4) Add both readings, the total indicator movement is the bearing float and this should not exceed 0.003”. C) Gate rotor bearing float. 1) Remove the side covers and position a dial indicator on the gate rotor. 2) Use a lever arm pivoting on a bolt with a small block of wood against the gate rotor blade to protect the blade. 3) The maximum amount of bearing float should not exceed 0.002”. TABLE 2.
Service GATE ROTOR ASSEMBLY CAUTION Gate rotor removal and assembly is divided into distinct instructions, instructions for all VSS models and different instructions for all VSM models. Please follow the appropriate set of instructions. For VSM 451 thru 601 compressors, do not use side rails. REMOVAL 901A For VSS 751/901 & VSS 1051 THRU 1301 compressors, use side rails and assemble to gaterotor stabilizer as stamped. 901B 901D 901C Drive End 60 A) Prepare the compressor for servicing.
Service E) Remove the hex head and socket head bolts from the thrust bearing cover. Insert two of the bolts into the threaded jacking holes to assist in removing the cover. Retain the shim pack and keep it with the bearing housing cover. F) Hold the gate rotor support with a suitable wrench on the flats provided near the roller bearing housing. Remove the inner retainer bolts and the retainer.
Service REMOVAL (ALL VSM 301-701 MODELS) The removal of the gate rotor assembly for the VSM 301-701 compressors is similar for the VSS 9013001 compressors. The inner races are secured to the stationary bearing spindle. A) Prepare the compressor for servicing. B) Remove the upper bolt from the side cover and install a guide stud in the hole. Remove the remaining bolts and side cover. There will be some oil drainage when the cover is removed.
Service E) Remove plug on the thrust bearing housing. Loosen the socket head cap screw that is located underneath the plug. This secures the inner races of the thrust bearings to the spindle. F) Remove bolts that hold the thrust bearing housing to the compressor. Insert two of the bolts into the threaded jacking holes to assist in removing the bearing housing from the compressor. When the housing is removed, there will be shims between the spindle and thrust bearings.
Service INSTALLATION (All VSS Models) A) Install the gate rotor support by carefully tilting the roller bearing end of the gate rotor support towards the suction end of the compressor. The compressor input shaft may have to be rotated to facilitate the installation of the gate rotor support. Install gate rotor stabilizer. The gate rotor stabilizer (901) will hold the gate rotor support in place as the thrust bearing housing is being installed.
Service D) Set the clearance between the gate rotor blade and the shelf. 1. Place a piece of 0.003”-0.004” shim stock between the gate rotor blade and the shelf. 2. Measure the depth from the top of the compressor case to the top of the thrust bearing housing. This determines the amount of shims needed for the correct clearance. 3. Use factory installed shim pack (106) and bearing housing cover (116) without the Oring (143).
Service INSTALLATION (All VSM 301-701 Models) A) Install the gate rotor support. Carefully tilt the roller bearing end of the gate rotor support towards the suction end of the compressor. The compressor input shaft may have to be rotated to facilitate the installation of the gate rotor support. B) Install the roller bearing housing with a new O-ring. Tighten the bolts to the recommended torque value.
Service GATE ROTOR BLADE REMOVAL A) Remove the gate rotor assembly. B) Remove the snap ring and washer from the gate rotor assembly. Lift gate rotor blade assembly off the gate rotor support. C) Check damper pin and bushing for excessive wear. Replace if necessary. TOP of assembly Relief area faces TOP of assembly.
Service GATE ROTOR BLADE INSTALLATION (with Relief) A) Install damper pin bushing (120) in gate rotor blade (111) from the back side of the blade. Be sure the bushing is fully seated. B) Place the blade assembly on the gate rotor support. Locating Damper over pin. C) Install washer (119) and snap ring (130) on gate rotor assembly. The bevel on the snap ring must face away from the gate rotor blade.
Service GATE ROTOR THRUST BEARING INSTALLATION A) For installation of thrust bearings on VSS units: 1) Install bearings (126) in the housing so the bearings are face to face. The larger sides of the inner races are placed together. A light application of clean compressor lubricating oil should be used to ease the installation of the bearings into the housing. 2) Center the bearing retainer ring on housing, use Loctite® 242-thread locker and evenly tighten the bolts to the recommended torque value.
Service GATE ROTOR ROLLER BEARING REMOVAL A) Refer to section REMOVAL ( All VSS & VSM) for removal of the gate rotor bearing housings and gate rotor supports. B) Remove the snap ring (131), which retains the roller bearing in the bearing housing. C) Remove the roller bearing (125) from the bearing housing (112). D) Use a bearing puller to remove the roller bearing race (125) from the gate rotor support (110).
Service COMPRESSOR SHAFT SEAL REPLACEMENT COMPRESSOR SHAFT SEAL REMOVAL A) Prepare the compressor for servicing as outlined in section REMOVAL. B) Remove bolts (281) holding the shaft seal cover (218). Insert two of the bolts into the threaded jacking holes to assist in removing the cover. There will be a small amount of oil drainage as the cover is removed. C) Remove the rotating portion of the shaft seal (219C). D) Remove oil seal (230) from cover. Current Shaft Seal and for all Replacements.
Service Seal Assembly w/ Stationary Mirror Face COMPRESSOR SEAL INSTALLATION NOTE: When replacing the stationary members of the seal on the VSS 451 thru VSS 601 the roll pin in the cover is used only with the seal assembly having a stationary mirror face. If a seal assembly with a stationary carbon face is installed, the roll pin must be removed. A) Install new oil seal in cover. CAUTION Care must be taken when handling the shaft seal and mirror face so it is not damaged.
Service shoulder on the input shaft. Make sure the seal is seated against the shoulder. If the seal is not fully seated against the shoulder, the shaft seal carbon will be damaged when the seal cover is installed. Maintenance Suggestion: A spray bottle filled with clean compressor oil may be used to lubricate the faces of the seals without touching the seal.
Service INSPECTION OF SLIDE VALVE ASSEMBLIES IN THE COMPRESSOR Prepare the compressor for servicing. A) Remove the gate rotor access covers. Using a mirror and flashlight, visually inspect the slide valve carriage through the gas bypass opening. Look for any significant signs of wear on the slide valve carriage. B) To check the clearance of the slide valve clamps, the gate rotor support must be removed. Refer to removal of the gate rotor support.
Service D) Locate and remove the socket head plugs above the slide valve carriage attachment bolts. Remove the bolts located under the plugs. E) The slide valve carriage may now be removed. On newer carriages there is a threaded hole in the back of the slide valve carriage to aid in its removal. Use a threaded tip slide hammer to aid in the removal of the carriage. Note: Slide Valves may be re-positioned to aid in removal of assembly.
Service COMMAND SHAFT ASSEMBLY REMOVAL The following steps can be used to remove or install either the capacity or volume command shaft assemblies. A) Prepare the compressor for servicing. B) Follow the appropriate instructions to remove control actuator. C) Remove four socket head cap screws (457) and Nord-Lock washers (477) securing mounting plate (415) to manifold. D) The command shaft and mounting plate may now be removed from the compressor.
Service C) The command shaft bearing (435) is a press fit on the command shaft (413). Remove the command shaft bearing with a suitable press. Ven t ho le. 436 445 Reference “Parts Section” for current Housing D) Remove the O-ring seal (445) from the command shaft housing. The command shaft bushing (433 and 436) might have to be removed to gain access to o-rings. Replace bushing if the bore is deeply scored or excessively worn.
Service DISCHARGE MANIFOLD INSTALLATION A) Install (2) guide rods to position the discharge manifold. Install a new manifold gasket and the discharge manifold. Install the dowel pins and bolts, tighten manifold bolts to the recommended torque value. B) On VSS 451-3001 compressors install the discharge spool or elbow between the discharge manifold and oil separator with new gaskets.
Service C) To remove the cross shafts, remove socket head bolts, clamp and spacers from both sides. VSS 751-2101 compressors cross shafts. VSM 301-701 & VSS 2601-3001 compressors cross shafts Volume control cross shaft. INSTALLATION OF CAPACITY OR VOLUME CROSS SHAFTS A) To reassemble either set of capacity or volume ratio slide valve racks, install the cross shaft with the pinion gear onto the back plate, place the remaining pinion gear on the shaft and drive in the roll pins.
Torque Specifications (ft-lbs) Type Bolt Head Markings SAE Grade 2 Coarse (UNC) SAE Grade 5 Coarse (UNC) SAE Grade 5 Coarse (UNC) SAE Grade 8 Coarse (UNF) Nominal Size Numbers or Inches #10 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 - 5 10 18 29 44 63 87 155 150* - 8 16 28 44 68 98 135 240 387 - - 18 - - - - - - - - 11 22 39 63 96 138 191 338 546 5 13 26 46 73 112 115 215 380 614 Socket Head Cap Screw (ASTM A574) Coarse (UNC) 1) Torque values in thi
Service USING A TORQUE WRENCH CORRECTLY TORQUE WRENCHES USING A TORQUE WRENCH CORRECTLY INVOLVES FOUR PRIMARY CONCERNS: A. A smooth even pull to the break point is required. Jerking the wrench can cause the pivot point to break early leaving the bolt at a torque value lower then required. Not stopping when the break point is reached results in an over torque condition. B.
Service A. The Nord-Lock® lock washer sets are used in many areas in both the VSG & VSSG screw compressors that require a vibration proof lock washer. B. The lock washer set is assembled so the course serrations that resemble ramps are mated together. C. Once the lock washer set is tightened down, it takes more force to loosen the bolt that it did to tighten it. This is caused by the washers riding up the opposing ramps.
Service 6.00 OIL FILTER ELEMENTS The following is a description of the oil filter elements supplied on standard VSS, VSR and VSM single screw compressor units 6.01 1833C FILTER ELEMENTS Vilter Part Number 1833C Usage Dates VSS 451 to VSS 1801 All units prior to 3-1-00 18” 6-1/8” Length Diameter A) Characteristics; 1) The outside of the filter element is covered with a perforated metal surface. 2) At each end of the filter, there is a large thick elastomeric seal.
Service 6.02 KT 721 FILTER ELEMENTS Vilter Part Number KT 721 Tank O-Ring Usage Dates Length 2176BU VSR Compressors 1992 to 8-1-96 8” A) Characteristics; 1) Pleated type element with a screen covering the surface of the element. 2) One end of the element is solid while the other has a pilot hole with a captive “o”-ring. 6.03 KT 722 FILTER ELEMENTS Vilter Part Number KT 722 Tank O-Ring Usage Dates Length 2176AJ VSR Compressors 1996 to 2002 16.
Service 6.04 KT 773A & B FILTER ELEMENTS Vilter Part Number KT 773A KT 773B Tank O-Ring 2176BY 2176BZ Usage 3109A 3111A Duplex Simplex Housing Housing VSM all models 4/1/00 to present. VSS 451 to 1301 models with 30” and smaller oil separators 3/1/00 to present. 16” Usage 1. 2. Length A) Characteristics; 1) Pleated type element with a screen covering the surface of the element. 2) One end of the element is solid while the other has a pilot hole with a captive “o”ring.
Service 6.05 KT 774 FILTER ELEMENTS Vilter Part Number Tank O-Ring Usage Length KT 774 2176BY 3112A 3110A Simplex Duplex Housings Housings 1. VSS 1501 & 1801 3-1-00 to present. 2. All other VSS models with 30” and larger oil separators 3/1/00 to present. 39” C) Characteristics; 1) Pleated type element with a screen covering the surface of the element. 2) One end of the element is solid while the other has a pilot hole with a captive “o”-ring. 3) Only end cap is removed from the filter bowl.
Maintenance Refrigeration Maintenance and Inspection Schedule The following service intervals are based on the usage of Vilter Manufacturing Corporation Premium Grade refrigeration oil in VSS, VSM and VSR Single Screw Compressor units.
VSS Parts Section Recommended Spare Parts List Refer to the Custom Manual Spare Parts Section for Specific Applications Please have your Model # and Sales Order # available when ordering. These are found on the compressor’s Name Plate.
Gate Rotor 125 131 141 130 119 118 111 120 135 110 126 142 143 121 122 123 124 89
Gate Rotor MODEL NUMBER ITEM 102 105 106 110 111 112 113 114 115 116 117 118 119 120A 120B 121 122 123 124 125 126 130 131 135A 135B 141 142 143 150 151 152 153 160 90 DESCRIPTION GATE ROTOR BLADE AND BEARING REPLACEMENT KIT (111, 118, 120A, 120B, 121, 122, 123, 124, 125, 126, 130, 131, 141, 142, 143) GATE ROTOR BLADE REPLACEMENT KIT (111, 118, 120A, 120B, 121, 122, 123, 124, 130, 141, 142, 143) GATE ROTOR SUPPORT ASSEMBLY (100, 111, 120B, 119, 130) GATE ROTOR GASKET SET (118, 141, 142, 143) SHIM PACK
Gate Rotor MODEL NUMBER ITEM DESCRIPTION GATE ROTOR BLADE AND BEARING REPLACEMENT KIT (111, 118, 120A, 120B, 121, 122, 123, 124, 125, 126, 130,131, 141, 142, 143) GATE ROTOR BLADE REPLACEMENT KIT (111, 118, 120A, 120B, 121, 122, 123, 124, 130, 141, 142, 143) 102 GATE ROTOR SUPPORT ASSEMBLY (100, 111, 120B, 119, 130) 105 GATE ROTOR GASKET SET (118, 141, 142, 143) 110 SUPPORT. 111 GATE ROTOR 118 GATE ROTOR COVER GASKET 119 WASHER 120A BUSHING, SMALL DOWEL PIN 120B BUSHING, LARGE DOWEL PIN 121 SHIM 0.
Gate Rotor MODEL NUMBER ITEM 101 102 105 110 111 112 113 114 115 116 117 118 119 120A 120B 121* 122* 123* 124* 125 126 130 131 135A 135B 141 142 143 150 151 152 153 160 92 DESCRIPTION GATE ROTOR BLADE AND BEARING REPLACEMENT KIT (111, 118, 120A, 120B, 121, 122, 123, 124, 125, 126, 130, 131, 141, 142 & 143) GATE ROTOR BLADE REPLACEMENT KIT (111, 118, 120A, 120B, 121, 122, 123, 124, 130, 141, 142 & 143) GATE ROTOR ASSEMBLY (111, 120) GATE ROTOR SUPPORT ASSEMBLY (100, 111, 120B, 119, 130) GATE ROTOR GASK
Shaft Seal Shaft Seal With Stationary Carbon Face 230 260 219 MODEL NUMBER ITEM DESCRIPTION 230 260 SHAFT SEAL AMM KIT (219, 230, 260) SHAFT SEAL R22 KIT (219, 230, 260) OIL SEAL O-RING VSS 291 thru VSS 601 VSS 751 thru VSS 1201 VSS 1301 VSS 1551 thru VSS 2101 QTY VPN QTY VPN QTY VPN QTY VPN 1 KT709A 1 KT709B 1 KT709MB 1 KT709C 1 1 1 KT781A 25040A 2176F 1 1 1 KT781B 25064A 2176AC 1 1 1 KT709MA 2930F 2176AC 1 1 1 KT781C 2930B 2176BH 93
Main Rotor 201 207 94
MODEL NUMBER VSS 451 VSS 601 VSS 751 VSS 901 ITEM DESCRIPTION QTY VPN QTY VPN QTY VPN QTY VPN 201 207 ROTOR ASSEMBLY SHIM PACK 1 1 1 1 1 1 1 1 A25226CA A25177C A25226BB A25177B A25226BA A25177B A25226CB A25177C MODEL NUMBER VSS 1051 VSS 1201 VSS 1301 VSS 1551 ITEM DESCRIPTION QTY VPN QTY VPN QTY VPN QTY VPN 201 207 ROTOR ASSEMBLY SHIM PACK 1 1 1 1 1 1 1 1 A25226EC A25177E A25226DB A25177D A25226DA A25177D A25752HA A25177D MODEL NUMBER VSS 1851 VSS 2101 ITEM DESCR
Slide Valve Cross Shafts and End Plate 297 286 222 268 226 269 298 228 VSS 291 THRU VSS 601 ONLY NO SPACER THIS SIDE OF SHAFT ASSEMBLY 297 228 226 227 VSS 291 THRU VSS 601 ONLY NOTE: BOTH ACTUATOR SHAFT ASSEMBLIES ARE IDENTICAL ON VSS COMPRESSORS.
Slide Valve Cross Shafts and End Plate MODEL NUMBER VSS 291 thru VSS 601 VSS 751 VSS 901 VSS 1051 VSS 1201 VSS 1301 VSS 1551 thru VSS 2101 ITEM DESCRIPTION QTY VPN QTY VPN QTY VPN QTY VPN 221 222 226 227 228 267 268 269 270 286 SHAFT GEAR RACK CLAMP RACK CLAMP SPACER DOWEL PIN EXPANSION PIN EXPANSION PIN PIPE PLUG SOCKET HEAD CAP SCREW SET SCREW SET SCREW 2 4 2 2 2 4 4 8 25843A 25027A 25913A 25913B 25847A N/A 1193D 2981AA N/A 2795F 2 4 4 4 2 4 4 2 8 25844A 25027A 25913C N/A 25033C 2868B 119
Slide Valve Carriage Assembly Volume Slide Capacity Slide Carriage Assembly 343 345 350 305 304 380 378 347 360 316 323 361 363 98 300
Slide Valve Carriage Assembly MODEL NUMBER VSS 291 thru VSS 601 VSS 751 VSS 901 VSS 1051 VSS 1201 VSS 1301 ITEM DESCRIPTION QTY VPN QTY VPN QTY VPN QTY VPN 300 304 CARRIAGE ASSEMBLY CAPACITY PISTON (340, 341, 350, 355) VOLUME PISTON (340, 342, 350, 355) GASKET SET (345) GASKET SET (345, 378) RACK RACK SHAFT PISTON CAPACITY PISTON SHAFT VOLUME PISTON SHAFT COVER, ONE PIECE CAST GASKET, ONE PIECE CAST COVER GASKET, ONE PIECE CAST COVER PISTON SLEEVE PISTON RING SET EXPANSION PIN PIPE PLUG LOCK WA
Slide Valve Carriage Assembly MODEL NUMBER VSS 1551 thru VSS 2101 ITEM DESCRIPTION QTY VPN 300 304 CARRIAGE ASSEMBLY CAPACITY PISTON (340, 341, 350, 355) VOLUME PISTON (340, 342, 350, 355) GASKET SET (345) GASKET SET (345, 378) RACK RACK SHAFT PISTON CAPACITY PISTON SHAFT VOLUME PISTON SHAFT COVER, ONE PIECE CAST GASKET, ONE PIECE CAST COVER GASKET, ONE PIECE CAST COVER PISTON SLEEVE PISTON RING SET EXPANSION PIN PIPE PLUG LOCK WASHER (PAIR) WASHER NUT HEX HEAD CAP SCREW HEX HEAD CAP SCREW SOCKET HEAD
Actuator & Command Shaft 400 401 102 446
Actuator & Command Shaft MODEL NUMBER ITEM DESCRIPTION 400 COMMAND SHAFT ASSEMBLY SLIDE VALVE ACTUATOR O-RING SEAL 401 446 VSS 291 thru VSS 601 VSS 751 VSS 901 VSS 1051 VSS 1201 VSS 1301 VSS 1551 thru VSS 2101 QTY VPN QTY VPN QTY VPN QTY VPN 2 A25994B 2 A25994C 2 A25994D 2 A25994E 2 2 25972D 2176X 2 2 25972D 2176X 2 2 25972D 2176X 2 2 25972D 2176X 103
Miscellaneous Frame Components VSS Screw Compressor 545 545 * 504 513 513 504 545 514 514 512 506 528 514 536 518 530 536 530 554 536 519 547 536 536 540 536 514 528 545 514 * 504 513 545 104 506
Miscellaneous Frame Components MODEL NUMBER ITEM 504A DESCRIPTION GASKET & O-RING KIT FLANGE SET (513A, 514A, 545A) 504B* FLANGE SET (513B, 514B, 545B) 504C* FLANGE SET (513B, 514C, 545C) 506A PLUG SET, ECONOMIZER (514C, 528, 545B) 506B PLUG SET, ECONOMIZER (514A, 514C, 528, 545C) 512 MANIFOLD GASKET 513A FLANGE 513B FLANGE 514A GASKET 514B GASKET 514C GASKET 518 GASKET, SUCTION 519 GASKET, DISCHARGE 528 ECONOMIZER PLUG 530 O-RING 536 PIPE PLUG 3/4” MPT 540 DOWEL PIN 542 PIPE PLUG 3/4” MPT 545A HEX HEAD
Miscellaneous Frame Components MODEL NUMBER VSS 1551 thru VSS 2101 ITEM 504A DESCRIPTION GASKET & O-RING KIT FLANGE SET (513A, 514A, 545A) 504B* FLANGE SET (513B, 514B, 545B) 504C* FLANGE SET (513B, 514C, 545C) 506A PLUG SET, ECONOMIZER (514C, 528, 545B) 506B PLUG SET, ECONOMIZER (514A, 514C, 528, 545C) 512 MANIFOLD GASKET 513A FLANGE 513B FLANGE 514A GASKET 514B GASKET 514C GASKET 518 GASKET, SUCTION 519 GASKET, DISCHARGE 528 ECON-O-MIZER PLUG 530 O-RING 536 PIPE PLUG 3/4” MPT 540 DOWEL PIN 542 PIPE PLU
Replacement Tools GATE ROTOR SUPPORT 901 901 BALL BEARING HOUSING 900 900 TO REMOVE BEARING TO INSTALL BEARING 901 FOR VSS 451, VSS 601, DO NOT USE SIDE RAILS. FOR VSS 751, VSS 901, VSS 1051 AND VSS 1201, ASSEMBLE SIDE RAILS AS STAMPED. FOR VSS 1551 AND 1801, SIDE RAILS ASSEMBLE ONLY ONE WAY.
Replacement Tools MODEL NUMBER VSS 291 thru VSS 601 VSS 751 VSS 901 VSS 1051 VSS 1201 VSS 1301 VSS 1551 thru VSS 2101 ITEM DESCRIPTION QTY VPN QTY VPN QTY VPN QTY VPN 900 901A GATE ROTOR TOOLS GATE ROTOR STABILIZER SET (901A, 901B, 901C) GATE ROTOR STABILIZER SET (901A, 901B, 901C, 901D) 1 A25205B 1 A25205C 1 A25205C 1 A25205E 1 A25698A 1 A25698A 1 A25698A - N/A - N/A - N/A - N/A 1 A25699A 901B 109
VSM 301-701 Replacement Parts Section Recommended Spare Parts List Refer to the Custom Manual Spare Parts Section for Specific Applications Please have your Model # and Sales Order # available when ordering. These are found on the compressor’s Name Plate.
Gaterotor Assembly 112
Gaterotor Assembly Part totals indicated are for one gate rotor assembly, machines with two gate rotors will require double the components listed below. ITEM DESCRIPTION 100 101 GATE ROTOR & DAMPER ASSEMBLY 102 GATE ROTOR SUPPORT ASSEMBLY 110 111 114 115 118 119 120 121* 122* 123* 124* 125 126 130 131 132 135 141 143 155 156 100, 101, 119 & 130. SHIM PACK SET (2) 121, (2) 122, (1) 123, (1) 124. SUPPORT. GATE ROTOR. SNAP RING. RETAINER BALL BEARING GATE ROTOR COVER GASKET. WASHER WAVE SPRING. DAMPER.
Gaterotor Assembly Part totals indicated are for one gate rotor assembly, dual gate machines will require double the components. ITEM DESCRIPTION 100 101 GATE ROTOR & DAMPER ASSEMBLY 102 GATE ROTOR SUPPORT ASSEMBLY 110 111 114 115 118 119 120 121* 122* 123* 124* 125 126 130 131 132 135 141 143 155 156 100, 101, 119 & 130. SHIM PACK SET (2) 121, (2) 122, (1) 123, (1) 124. SUPPORT. GATE ROTOR. SNAP RING. RETAINER BALL BEARING GATE ROTOR COVER GASKET. WASHER. DAMPER. SHIM 0.002”. SHIM 0.003”. SHIM 0.
Shaft Seal MODEL NUMBER ALL VSM 301-401 ALL VSM 501-701 QTY VPN QTY VPN ITEM DESCRIPTION * SHAFT SEAL KIT (AMM) 219, 230, & 260. SHAFT SEAL KIT (HALO) 219, 230, & 260 SHAFT SEAL. OIL SEAL. TEFLON SEAL RETAINER RING O-RING O-RING. (205 Only) * 219 230 244252260 261 NOTE * A - 1 KT709D 1 KT709A 1 1 1 1 1 1 1 KT781D A 2930C 25939A 2928M 2176U 2176AE 1 1 1 1 1 1 KT781A A 25040A 25939A 2928M 2176F N/A Not pictured. Sold only as kit. See recommended spare parts lists for complete assembly.
Main Rotor, Slide Valve Cross Shafts & End Plate Models VSM 301-401 Counter Clockwise ONLY 116
Main Rotor, Slide Valve Cross Shafts & End Plate Models VSM 301-401 Counter Clockwise ONLY ITEM DESCRIPTION 201 203 MAIN ROTOR ASSEMBLY. OIL BAFFLE ASSEMBLY (1) 217, (1) 244, (1) 248, (1) 249, (1) 252. SHIM ASSORTMENT (2) 240, (2) 241, (1) 242, (1) 243 END PLATE. SHAFT. GEAR. CLAMP. SPACER. SHIM 0.002” SHIM 0.003” SHIM 0.005” SHIM 0.010” TEFLON RING. (BAFFLE) CHECK VALVE. (BAFFLE) CHECK VALVE. (BAFFLE) RETAINING RING. (BAFFLE) EXPANSION PIN. EXPANSION PIN. PLUG SOLID HEX HEAD CAP SCREW.
Main Rotor, Slide Valve Cross Shafts & End Plate Models VSM 501-701 Clockwise ONLY 118
Main Rotor, Slide Valve Cross Shafts & End Plate Models VSM 501-701 Clockwise ONLY ITEM DESCRIPTION 201 203 MAIN ROTOR ASSEMBLY. OIL BAFFLE ASSEMBLY (1) 217, (1) 244, (1) 248, (1) 249, (1) 252. SHIM ASSORTMENT (2) 240, (2) 241, (1) 242, (1) 243 END PLATE. SHAFT. GEAR. SPACER. SHIM 0.002” SHIM 0.003” SHIM 0.005” SHIM 0.010” TEFLON RING. (BAFFLE) CHECK VALVE. (BAFFLE) CHECK VALVE. (BAFFLE) RETAINING RING. (BAFFLE) WASHER WASHER EXPANSION PIN. EXPANSION PIN. HEX HEAD CAP SCREW.
Assembly Includes Carriage and Slides.
Slide Valve Carriage Assembly ITEM 300 304 305 316 318 323 325 350 360 361 363 372* MODEL NUMBER ALL VSM 301-401 QTY VPN CARRIAGE ASSEMBLY. 1 A25179A CAPACITY PISTON 340, 341, 350 & 355. 1 A25183A VOLUME PISTON 340, 342, 350 & 355. 1 A25184A CAPACITY RACK. 1 25023D CAPACITY RACK SHAFT. 1 25772C VOLUME RATIO RACK. 1 25023C VOLUME RATIO RACK SHAFT. 1 25772D PISTON RING SET. 2 2953AE LOCK WASHER (PAIR). 2 3004C WASHER. 2 13265B NUT. 4 2797A SOCKET HEAD CAP SCREW.
Actuator & Command Shaft 122
Actuator & Command Shaft ITEM DESCRIPTION 400 401 446 COMMAND SHAFT ASSEMBLY SLIDEVALVE ACUATOR O-RING SEAL MODEL NUMBER VSM 291 thru VSM 601 QTY VPN VSS 751 thru VSS 901 VPN VSS 1051 thru VSS 1201 VPN VSS 1551 thru VSS 2101 VPN 2 2 2 A25994C 25972D 2176X A25994D 25972D 2176X A25994E 25972D 2176X A25994B 25972D 2176X 123
Miscellaneous Frame Components Model VSM 301-401 Model VSM 501-701 124
Miscellaneous Frame Components ITEM DESCRIPTION 512 514 522 523 528 530 540 542 551 570 571 572 * MANIFOLD GASKET. ECON-O-MIZER GASKET. COUPLING LOCK PLATE LOCK WASHER ECON-O-MIZER PLUG. O-RING DOWEL PIN PIPE PLUG HEX HEAD CAP SCREW BEARING OIL PLUG PLUG SPRING GASKET / O-RING SET Notes. * Not Pictured.
Housing Accessories Miscellaneous Frame Components 126
Miscellaneous Frame Components Housing Accessories ITEM DESCRIPTION 117 118 129 180 343 GATE ROTOR COVER. COVER GASKET. GASKET. INLET SCREEN. PISTON COVER. * MODEL NUMBER VSM 301 - 701 QTY VPN 1 25416B 2 25259B 1 11323T 1 25920A 1 25724B ITEM DESCRIPTION MODEL NUMBER VSM 301 - 401 VSM 501 - 701 QTY VPN QTY VPN 345 346 O-RING. O-RING.
Replacement Tools 128 ITEM DESCRIPTION 901 902 GATEROTOR STABILIZER.
Danfoss Liquid Injection Valve Setup ICM/ICAD Motorized Valve Setup Instructions The following items need to be setup in order for the valve to operate properly. 1. Press the “Circle” button on the valve. A value of “01” should be shown on the screen. 2. Press the “Circle” button. There should be a value of “1” shown. If not use the up/down arrows to change it to the correct value. Press the “Circle” button when done. 3. Press the “Up” arrow button. A value of”02” should be shown on the screen. 4.
13. Press the “Up” arrow button until a value of “26” is shown on the screen. 14. Press the “Circle” button. Press the up/down arrow buttons to change the value to the correct valve that is on the unit. The value number is listed on the valve. The values and valves are as follows: 0: No valve selected. Alarm A1 will become active. 1: ICM20 with ICAD 600 2: ICM25 with ICAD 600 3: ICM32 with ICAD 600 4: ICM40 with ICAD 900 5: ICM50 with ICAD 900 6: ICM65 with ICAD 900 15. Press the “Circle” button.
ICM/ICAD Motorized Valve Installation, Programming, and Troubleshooting Contents Page Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Wiring the ICAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 ICAD Overview . . . .
ICM/ICAD Motorized Valve Installation, Programming, and Troubleshooting Care should be taken to protect the ICM function module while it is removed from the valve body. 3. Weld the valve body in line making sure the arrow on the valve body is pointing in the direction of flow. 4. Remove all debris from the valve body before re-installing the bonnet. 5. Install the bonnet/function module into the valve body. a.
ICM/ICAD Motorized Valve Installation, Programming, and Troubleshooting Wiring the ICAD Note: The ICAD is powered by a 24 Volt DC power source. There are two cables pre-mounted and connected to the ICAD motor actuator. Never try to open the ICAD motor because the special moisture seal will be damaged.
ICM/ICAD Motorized Valve Installation, Programming, and Troubleshooting Programming the ICAD When the ICAD motor is first powered, the ICAD display will flash an A1 alarm. This means that the ICM valve size that is being used with the ICAD motor needs to be selected in parameter ¡26. Parameter ¡26 is password protected and will not appear in the parameter list until the user enters the password in parameter ¡10.
ICM/ICAD Motorized Valve Installation, Programming, and Troubleshooting Troubleshooting The manual tool should always be ordered with any ICM/ICAD assembly. This tool gives the user the ability to remove the ICAD actuator and manually rotate the valve in the open or close direction depending on need and application. When using the manual tool, a clockwise rotation will open the valve and a counter-clockwise rotation will close the valve.
ICM/ICAD Motorized Valve Installation, Programming, and Troubleshooting Alarms There are a number of alarms which are excellent indicators of improper installation or set-up: Description Troubleshooting Tips ICM Comments alarm text No valve type selected A1 At start-up A1 and CA will be displayed Controller fault A2 Internal fault inside electronics Input error A3 Not applicable if ¡01 = 2 or ¡02 = 2 When ¡03 = 1 and AI > 22 mA When ¡03 = 2 and AI > 22 mA or AI < 2 mA When ¡03 = 3 and AI >12 V
ICM/ICAD Motorized Valve Installation, Programming, and Troubleshooting Common Questions What happens in the event of a power failure? The ICAD will remain in the position it is in when power is lost. There are two ways to address this condition: • Add a UPS (Uninterruptible Power Supply) to the power wiring. This is easily accomplished with the green and white wires in the power cable. A UPS is available from Danfoss. The UPS can provide service for up to 9 ICAD 600’s or up to 6 ICAD 900’s.
Appendix A: Pre Start Up for Remote Oil Coolers 143
35391S Rev. 8b (10/12) Emerson and Vilter are trademarks of Emerson Electric Co. or one of its affiliated companies. © 2012 Emerson Climate Technologies, Inc. All rights reserved. Printed in the USA.
