V146 Series 2-Way Pressure-Actuated Water-Regulating Valves InstallationInstructions1 Refer to the QuickLIT website for the most up-to-date version of this document.Applications The V146 Series 2-Way Pressure-Actuated Water-Regulating Valves regulate water flow to control refrigerant head pressure in systems with water-cooled condensers. The V146 valves are ideal for applications with system water pressures of up to 350 psig (24.1 bar), such as high-rise buildings.V146EK and V146ALvalves have an adjustable opening point in a refrigerant pressure range of 70 to 260 psi (4.8 to 17.9 bar). V146EK and V146ALvalves are available in a 3/4 in. and 1 in. size. Use these valves with standard, noncorrosive refrigerants.V146GK1 and V146GL1valves have an adjustable opening point in a refrigerant pressure range of 200 to 400 psi (13.8 to 27.6 bar). The V146GK1 and V146GL1 valves are available in 3/4 in. and 1 in. size for use with standard, noncorrosive, high-pressure refrigerants. IMPORTANT:Use the V146 Series 2-Way Pressure-Actuated Water-Regulating Valves only to control equipment under normal operating conditions. Where failure or malfunction of the V146 valve could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the control system. Incorporate and maintain other devices, such as supervisory or alarm systems or safety or limit controls, intended to warn of or protect against failure or malfunction of the V146 valve.IMPORTANT :Utiliser ce V146 Series 2-Way Pressure-Actuated Water-Regulating Valve uniquement pour commander des équipements dans des conditions normales de fonctionnement. Lorsqu'une défaillance ou un dysfonctionnement du V146 valve risque de provoquer des blessures ou d'endommager l'équipement contrôlé ou un autre équipement, la conception du système de contrôle doit intégrer des dispositifs de protection supplémentaires. Veiller dans ce cas à intégrer de façon permanente d'autres dispositifs, tels que des systèmes de supervision ou d'alarme, ou des dispositifs de sécurité ou de limitation, ayant une fonction d'avertissement ou de protection en cas de défaillance ou de dysfonctionnement du V146 valve.V146 Series 2-Way Pressure-Actuated Water-Regulating ValvesInstallation InstructionsPart No. 24-7664-2055, Rev. FIssued April 28, 2014Supersedes June 22, 2010V146 Series 2-Way Pressure-Actuated Water-Regulating Valves Installation Instructions2Installation Install the valve vertically with the range adjustment screw on the top, and the sensing element and pressure connection line on the bottom, to allow oil and refrigerant to drain away from the valve sensing element. Mount the valve so that the sensing element is above the refrigerant tap point, if possible. If it is not possible to mount the bellows of the valve above the tap point, loop the capillary above the tap point and below the bellows and then connect to the valve. Tap off of the topside of the high side line. This minimizes the effect of refrigerant oil in the capillary on valve reaction time.Do not mount the valve in any position other than vertical unless specified by the manufacturer of the equipment on which the valve is installed. Follow the manufacturer's installation instructions.The direction of water flow is indicated by an arrow on the valve body. See Figure1 and Figure2.Setup and AdjustmentsIf the system is located in an area with high ambient temperatures, refrigerant head pressures may remain high enough during Off cycles to prevent the valve from completely closing. In such instances, raise the opening point pressure of the valve just enough to cause the valve to stop flow to the condenser during compressor standby periods.Manually Flushing the ValveManually flush the fluid piping after installation to remove filings, chips, or other foreign material. Manual flushing does not affect valve adjustment.To flush the valve, insert screwdrivers under both sides of the valve spring guide and lift upward. See Figure1 and Figure2.!CAUTION: Risk of Environmental Damage.Provide proper containment for any potential release of refrigerant, solvent, or oil. Such hazardous materials can be harmful to the environment if they are released.MISE EN GARDE : Risque de dommages environnementaux.Prévoir des mesures de confinement appropriées afin d'éviter toute fuite potentielle de réfrigérant, de solvant ou d'huile. Ces substances dangereuses peuvent s'avérer néfastes pour l'environnement en cas de rejet.IMPORTANT:If the valve is installed on equipment that contains hazardous or regulated materials such as certain refrigerants or lubricants, you must comply with all standards and regulations governing the containment and handling of those materials.IMPORTANT:After installing the valve, evacuate pressure connection lines to remove air, moisture, and other contaminants in a manner consistent with applicable environmental regulations and standards.IMPORTANT:Apply a non-hardening, pliable sealant (Loctite 567 or equivalent) to the face of the copper tailpiece to compensate for slight piping misalignments and surface imperfections on union ends.IMPORTANT:Take care to prevent foreign materials such as weld slag, thread burrs, metal chips, and scale from entering the piping system. This debris can damage or severely impede the operation of the valve by embedding itself in the seats, scoring the valve, and ultimately resulting in seat leakage. If the debris becomes embedded in the seats, subsequent flushing and filtering of the piping system with the valve installed does not remedy the problem.Figure 1: Manual Flushing for 3/4in. ValvesRange AdjustmentScrewInsert screwdrivers underneath the valve spring guide.RangeSpringValve Spring GuideTopRetainerFIG:V146_rdflshV146 Series 2-Way Pressure-Actuated Water-Regulating Valves Installation Instructions 3 Pressure Connections Connect the refrigerant-side flare connector to the appropriate high-side pressure tap point. If additional capillary tubing is necessary, use 1/4 in. copper tubing.Follow the guidelines below when making pressure connections:•Purge all tubing and lines before making pressure connections.•Use pressure tap points located on the top side of the refrigerant lines. This reduces the possibility of oil, liquids, or sediment accumulating in the pressure connection line or valve bellows, which could cause valve malfunction.•Avoid sharp bends in the capillary tubes. Sharp bends can weaken or kink capillary tubes, which may result in refrigerant leaks or restrictions.•Allow for slack in the capillary tubes to dampen vibration. Mechanical vibration can weaken or damage the capillary tubes.•Avoid contact between the capillary tubing and sharp or abrasive objects. Vibration or rubbing of sharp or abrasive objects in contact with capillary tubes can cause leaks.•Coil and secure excess capillary tubing away from contact with sharp or abrasive objects or surfaces. Carefully loop any excess capillary tube into smooth, circular coils (minimum 2 in. [5 cm] diameter). Securely fasten the coiled capillary tube.•Do not overtighten flare nuts on pressure connection line fittings. Overtightening flare connections may damage the threads and result in refrigerant leaks. Donot exceed 10 ftlb (14 Nm) of torque when tightening flare connections.•Avoid severe pressure pulsation at pressure tap points. Install pressure connection lines to pressure tap points away from the compressor discharge to minimize the effects of pressure pulsation from reciprocating compressors..AdjustmentsThe V146 valves are factory adjusted for the settings shown in Table1.!WARNING: Risk of Personal Injury.Shut off the liquid supply and relieve pressure in the line before servicing the valve. Contents of liquid lines could be under pressure and the release of liquid under pressure may cause severe personal injury.AVERTISSEMENT : Risque de blessure.Couper l'alimentation en liquide et évacuer la pression présente dans la conduite avant toute intervention sur la vanne. Les liquides à l'intérieur des conduites peuvent être sous pression et la libération soudaine de liquide sous pression risque de provoquer des blessures graves.Figure 2: Manual Flushing for 1in. ValvesRange AdjustmentScrewInsert screwdrivers underneath the valve spring guide.RangeSpringValve Spring GuideTopRetainerFIG:V146_sqflshTable 1: Refrigerant Pressure SpecificationsProduct Code NumberNominal Valve SizeOpening Point Adjustment RangeFactory-Set OpeningPointV146EK-1C3/4 in.70 to 260 psi (4.8 to 17.9 bar)165 psi (11.4) barV146GK1-001C3/4 in.200 to 400 psi (13.8 to 27.6 bar)275 psi (19 bar)V146AL-1C1 in.70 to 260 psi (4.8 to 17.9 bar)165 psi (11.4) barV146GL1-001C1 in.200 to 400 psi (13.8 to 27.6 bar)275 psi (19 bar)V146 Series 2-Way Pressure-Actuated Water-Regulating Valves Installation Instructions4The opening point pressure (also called the crack-open point) is the refrigerant pressure (at the valve’s sensing element) necessary to just lift the valve disc off the valve seat and allow water to flow through the valve body. Turning the range adjustment screw changes the opening point pressure.Use a standard service valve wrench or screwdriver to adjust the opening point pressure.•Turn the range adjustment screw counterclockwise to raise the opening point pressure.•Turn the range adjustment screw clockwise to lower the opening point pressure.Use a refrigerant pressure gauge to adjust the opening point pressure. Operate the system at normal load conditions and adjust the valve’s opening point to the desired pressure. See Table1 for refrigerant pressure specifications. System CheckBefore leaving the installation, observe the system through at least one complete operating cycle to ensure that the valve is operating correctly.Torque SpecificationsTo prevent water leakage, ensure that the spring housing screws and sensing element screws are tightened to the torque specifications in Table2. Table 2: Maximum Torque SpecificationsValve SizeSpring Housing ScrewsSensing Element Screws1/4 in. Flare Pressure Connection3/4 in.35 lbfin (3.7 Nm)35 lbfin(3.7 Nm)10 ftlb (14 Nm)1 in. 55 lbfin(5.9 Nm)72 lbfin (7.8Nm)10 ftlb (14 Nm)Published in U.S.A.www.johnsoncontrols.comV146 Series 2-Way Pressure-Actuated Water-Regulating Valves Installation Instructions 5Metasys® and Johnson Controls® are registered trademarks of Johnson Controls, Inc.All other marks herein are the marks of their respective owners. © 2011 Johnson Controls, Inc.Building Efficiency507 E. Michigan Street, Milwaukee, WI 53202® Johnson Controls and PENN are registered trademarks of Johnson Controls, Inc. in theUnited States of America and/or other countries. All other trademarks used herein are the propertyof their respective owners. © Copyright 2014 by Johnson Controls, Inc. All rights reserved.Building Efficiency507 E. Michigan Street, Milwaukee, WI 53202Repair InformationRepairs can be made. Replacement sensing elements, internal parts and diaphragms are available. For replacement parts kit product code numbers, see Table3. To obtain replacement parts contact your local Johnson Controls/PENN Distributor. For replacement parts kits instructions and details, refer to the following bulletins:•V146 Series Valves Replacement Kits Installation Instructions (Part No. 24-7664-2071)•V146 and V148 Series Valves Sensing Element Replacement Kits Installation Instructions (PartNo. 24-7664-2101) Technical Specifications IMPORTANT:When servicing these valves, use only the replacement kits listed in Table3. Use of an improper replacement kit may lead to premature failure and setpoint shift.Table 3: Replacement KitsValve Product Code NumberNominal Valve SizeSeat Replacement Kit Product Code NumberDiaphragm Replacement Kit Product Code NumberSensing Element Replacement Kit Product Code NumberV146EK-1C3/4 in.STT16A-622RDPM16A-622RSEP38A-600RV146GK1-001C3/4 in.SEP38A-601RV146AL-1C1 in.STT17A-622RDPM17A-622RSEP38A-602RV146GL1-001C1 in.SEP38A-603RV146 Series 2-Way Pressure-Actuated Water-Regulating ValvesMaximum Refrigerant PressureV146EK: 370 psi (25.5 bar)V146AL: 320 psi (22.1 bar)Maximum Working PressureV146GK1, V146GL1: 630 psi (43.4 bar)Opening Point Adjustment RangeV146EK, V146AL: 70 to 260 psi (4.8 to 17.9 bar)V146GK1, V146GL1: 200 to 400 psi (13.8 to 27.6 bar)Factory-Set Opening PointV146EK, V146AL: 165 psi (11.4 bar)V146GK1, V146GL1: 275 psi (19.0 bar)Media350 psi (24.1 bar) Maximum,-4F to 170F (-20C to 77C) glycol/water or liquids with low freezing points that are compatible with valve materialsThe performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult Johnson Controls/PENN Refrigeration Application Engineering at 1-800-275-5676. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.Next >