J Series Electric Zone Valves Product Bulletin1J Series Electric Zone Valves accurately control the flow of saturated steam, hot water, or chilled water through coils and heat exchangers of all types, in a wide range of Heating, Ventilating, and Air Conditioning (HVAC) applications. The synchronous motor design has been proven reliable in millions of installations worldwide. The actuator can be removed from the valve body quickly and easily, simplifying installation and servicing. No special linkage kit or commissioning is required. Figure 1: J Series Electric Zone ValvesTable 1: Features and BenefitsFeaturesBenefitsQuick and Simple Actuator RemovalEases installation and provides quick actuator replacement during service.Bubble-Tight ShutoffConserves energy and accurately controls zone temperature for increased comfort.High Closeoff Pressure Actuator Option AvailableSatisfies demanding requirements of high-rise buildings and high-pressure pumping systems.Interchangeable ActuatorsAllow field conversion from normally open to normally closed without re-piping.Choice of End ConnectionsProvides increased versatility and replacement capability.Choice of Control Signals (On/Off, Floating, or 0-10 VDC/0-20 mA Signals)Meets the needs of most applications.J Series Electric Zone ValvesProduct BulletinCode No. LIT-977282Issued September 28, 2007Supersedes August 13, 2007J Series Electric Zone Valves Product Bulletin2Application OverviewJ Series Electric Zone Valves control the flow of saturated steam, hot water, and chilled water through coils and heat exchangers of all types, in a wide range of HVAC applications. A variety of models handle all water system control needs as well as saturated steam applications of 15 psig (103 kPa) or lower. The JSeries valves are designed to withstand the high moisture conditions found in many concealed fan coil installations.Valve Body FeaturesThe J Series valve body features an integral seat, and is available in normally open, normally closed, and three-way mixing/diverting styles. The one-piece body design permits high pressure ratings of 300 psig (2,067kPa).The valves are available with the following end connections:•1/2, 3/4, 1, and 1-1/4 in. OD sweat (solder joints for copper tubing)•1/2, 3/4, and 1 in. internal threaded (NPT)•inverted flare fittings (copper tubing with a flare nut for union connections)Valve ActionJT and JS Series On/Off Electric Zone Valves are operated by a hysteresis synchronous motor. When the thermostat is satisfied, a spring returns the valve to the normal position. On two-way valves, the paddle assembly closes against the flow as illustrated in Figure2. For three-way valves, see Figure3.JM Series Modulating Electric Zone Valves feature a magnetic clutch to extend the life of the motor and gear train, a manual operating lever/position indicator, and easy-to-use terminal blocks. All floating models come with a time-out feature, which automatically cuts off the control signal after 3 minutes of continuous operation. Proportional models are provided with jumper selectable operating range and action. All units are shipped with the action jumper in the Direct Acting (DA) position.Temperature RatingsJS and JT On/Off Series Electric Zone ValvesJS and JT On/Off Series Electric Zone Valves are available in two temperature ranges:Standard Temperature Rating for chilled water (up to 50% glycol) and hot water from 32 to 200°F (0 to 93°C), in an ambient temperature of 32 to 104°F (0 to 40°C).High Temperature Rating for chilled water, hot water up to 250°F (121°C) in an ambient temperature of 169°F (76°C), and saturated steam 250°F at 15 psig (121°C at 103 kPa).JM Series Modulating Electric Zone ValvesJM Series Modulating Electric Zone Valves are available in a single temperature range: Standard Temperature Rating for chilled water (up to 50% glycol) and hot water from 32 to 200°F (0 to 93°C), in an ambient temperature of 32 to 125°F (0 to 52°C).Manual Operating LeverAll J Series Electric Zone Valves (except normally open two-way models) are equipped with a manual operating lever. This lever:•allows the valve to be opened for system flushing before it is put into operation•prevents damage to the paddle on three-way valves, and allows flushing of the system by maintaining the valve in the mid-position•resets to normal position the first time the valve is cycledNote:The manual lever cannot be used to close the bypass port on three-way valves.End Connections for Inverted Flare ValvesInverted flare fittings must be ordered separately to adapt inverted flare J Series Electric Zone Valves to 1/2, 3/4, and 1 in. copper piping. See Table58 for a list of fittings available. This style of end connection eliminates the need for precision-cut lengths of copper tubing. These close-quarter fittings make installation easy without the use of tube benders or flaring tools. The inverted flare fittings are sweated onto the copper tubing; valve installation consists of simple wrench connections.Advantages of the inverted flare construction include:•installation with no possibility of heat damage during the soldering operation•easy removal, if necessary, to clean the system or make repairs•fittings that can withstand the high temperatures of silver soldering•labor savings when used for replacement work, because the old valve can be removed using the fittings, rather than cutting or unsweatingJ Series Electric Zone Valves Product Bulletin 3Flow DiagramsJS and JT Series Zone valves may be piped in mixing or diverting applications. See Figure2 and Figure3.JM Series Modulating Electric Zone Valves must be piped in a mixing configuration only. See Figure4 and Figure5.InstallationAll wiring must comply with local, regional, and national electrical code requirements. The actuator housing must be protected from moisture. In horizontal piping applications, we recommend that the valve be mounted within 85 degrees of the upright position. When mounted in vertical piping, the valve must be protected from moisture.Solder connections require a lead- or tin-based solder with a melting point below 600°F (316°C). Avoid overheating the end connections. PowerOffNormally ClosedBACoilPowerOffNormally OpenBACoilFIG:2wayOnOffFigure 2: Flow Diagrams for Two-Way JT and JS Series On/Off Electric Zone ValvesACoilPowerOffNormally ClosedBACoilPowerOffNormally ClosedBACoilPowerOffNormally ClosedBACoilPowerOffNormally ClosedFIG:3wayOnOffFigure 3: Flow Diagrams for Three-Way JS and JT Series On/Off Electric Zone ValvesJ Series Electric Zone Valves Product Bulletin4OpenBACoilClosedBACoilFIG:Jseries2wayFigure 4: Flow Diagrams for Two-Way JM Series Modulating Electric Zone ValvesFigure 5: Flow Diagrams for Three-Way JM Series Modulating Electric Zone ValvesBACoilClosedOpenBACoilFIG:Jseries3wayJ Series Electric Zone Valves Product Bulletin 5DimensionsFigure6 and Table2 provide information on dimensions for JM Series valves. Table 2: JT and JS Series On/Off Electric Zone Valve Dimensions, in. (mm)Valve SizeAB(Two-Way Models)C(Three-Way Models)D(Standard Closeoff Models)D(High Closeoff Models)1/2 in. Sweat1-5/16 (33)15/16 (24)1-5/16 (33)3-5/16 (84)3-5/8 (92)3/4 in. Sweat1-3/8 (35)15/16 (24)1-11/16 (43)3-3/8 (86)3-3/4 (95)1 in. Sweat1-11/16 (43)15/16 (24)1-11/16 (43)3-5/8 (92)4 (102)1-1/4 in. Sweat1-7/8 (48)1 (25)1-13/16 (46)3-11/16 (94)4-1/8 (105)1/2 in. Threaded (NPT)1-3/8 (35)15/16 (24)1-5/16 (33)3-3/8 (86)3-5/8 (92)3/4 in. Threaded (NPT)1-11/16 (43)15/16 (24)1-7/16 (37)3-5/8 (92)4 (102)1 in. Threaded (NPT)1-7/8 (48)1 (25)1-11/16 (43)3-11/16 (94)4-1/8 (105)3/4 in. Inverted Flare1-3/8 (35)15/16 (24)1-5/16 (33)4-1/8 (105)4-1/8 (105)Figure 6: JT and JS Series On/Off Electric Zone Valve Dimensions, in. (mm)7/8(22)2-1/2(64)3-5/16(84)DBTwo-WayNote: A minimum of 3/4 in. (19 mm)clearance is required foractuator removal.3-3/16(81)2-1/8(54)Inverted Flare3/4(19)15/16(24)2-15/16(75)7/8(22)CThree-Way3-7/8(98)AFIG:JS_JT_dimJ Series Electric Zone Valves Product Bulletin6Figure7, Figure8, and Table3 provide information on dimensions for JM Series valves. Figure 7: JM Series Non-Spring Return Modulating Electric Zone Valve Dimensions, in. (mm)4-1/4(107)3 13/16(98)2-1/4(57)AA2(51)3 1/16(78)CThree-WayBTwo-Way3/16(4)1/8(2)1-9/16(39)1-3/16(31)1-5/8(41)FIG:JMS_NSRNote: A minimum of 3/4 in. (19 mm)clearance is required foractuator removal.Figure 8: JM Series Spring Return Modulating Electric Zone Valve Dimensions, in. (mm)4-1/4(107)3-7/8(98)AA2(51)CThree-WayBTwo-Way1/16(1)1-9/16(39)1-3/16(31)1-9/16(40)3-11/16(93)4-1/2(114)FIG:JMS_SRNote: A minimum of 3/4 in. (19 mm)clearance is required foractuator removal.J Series Electric Zone Valves Product Bulletin 7Table 3: JM Series Modulating Electric Zone Valve Dimensions, in. (mm)Valve SizeABC1/2 in. Sweat1-5/16 (33)15/16 (24)1-5/16 (33)3/4 in. Sweat1-3/8 (35)15/16 (24)1-11/16 (43)1 in. Sweat1-11/16 (43)15/16 (24)1-11/16 (43)1-1/4 in. Sweat1-7/8 (48)1 (25)1-13/16 (46)1/2 in. Threaded (NPT)1-3/8 (35)15/16 (24)1-5/16 (33)3/4 in. Threaded (NPT)1-11/16 (43)15/16 (24)1-7/16 (37)1 in. Threaded (NPT)1-7/8 (48)1 (25)1-11/16 (43)J Series Electric Zone Valves Product Bulletin8Ordering InformationSee Valve Configurations for possible valve and actuator configurations. See Available Factory Assemblies for available factory assemblies. See Valid Combinations for Field Assembly for valid combinations of valves and actuators that may be field-assembled.Valve ConfigurationsUse Table4 and Table5 to select the desired valve configuration. Table 4: Ordering Data, J Series Electric Zone Valves JElectric Zone Valve1TValve Type andT = On/Off, Standard Temperature2Temperature RatingS = On/Off, High TemperatureM = Modulating, Standard Temperature2Valve Configuration2 = Two-Way33 = Three-Way Mixing/Diverting3Valve Size2 = 1/2 in.43 = 3/4 in.4 = 1 in.5 = 1-1/4 in.1Valve End1 = Sweat: 1/2, 3/4, 1, and 1-1/4 in.5Connections2 = Threaded (NPT): 1/2, 3/4, and 1 in.4 = Inverted Flare: 3/4 in. Only (On/Off Valves Only)Note: Inverted flare fittings are sold separately;refer to Table 2 for ordering details.3CvValve SizeTwo-WayThree-Way6(Kv = Cv x 0.857)On/Off Valve Types1/2 in. Threaded and Sweat Only1 = 1.02 = 2.53 = 3.53 = 4.03/4 in. Threaded and Sweat Only2 = 2.53 = 3.55 = 5.03/4 in. Inverted Flare Only3 = 3.53 = 4.01 in. Sweat Only7 = 8.07 = 8.01 in. Threaded Only, and 1-1/4 in. Sweat Only7 = 8.07 = 8.0Modulating Valve Types1/2 in. Threaded and Sweat Only1 = 1.02 = 2.03 = 4.01 = 1.02 = 2.03 = 4.03/4 in. Threaded and Sweat Only2 = 2.03 = 4.07 = 7.52 = 2.03 = 4.07 = 7.51 in. Threadedand Sweat Only3 = 4.07 = 8.03 = 4.07 = 8.01-1/4 in. Sweat Only7 = 8.07 = 8.012345678910111213FieldExample: Electric zone valve, On/Off, standard temperature, two-way,3/4 in. sweat ends, 3.5 CvJT2313ValveActuatorJ Series Electric Zone Valves Product Bulletin 9When ordering an actuator only, add a J to the beginning of the actuator code. To order only the actuator shown in the example in Table5, use JG13A020.Table 5: Ordering Data – Adding a Factory Mounted Electric Actuator JT2313GActuator Type and Pressure RatingG = Standard Closeoff Pressure(On/Off Valve Types Only)1234567H = High Closeoff Pressure (On/Off Valve Types Only)T = Three Wire Floating(Modulating Valve Types Only)P = Proportional (Modulating Valve Types Only)1Spring Action1 = Spring Return Normally Closed(Two-Way and Three-Way Valves) 82 = Spring Return Normally Open (Two-Way Valves Only)3 = Non-Spring Return(Modulating Valve Types Only)Note: Three-way spring return valves are shipped from the factory in the normally closed configuration (Port B closed); for normally open configuration, simply turn the valve around.3Actuator Temperature3 = Standard Temp (JT and JM Series Valves Only)9Rating4 = High Temp (JS Series Valves Only)AVoltageA = 24 VAC, 60 Hz (All Valve Types)10B = 120 VAC, 60 Hz (On/Off Valve Types Only)02Electrical 02 = 18 in. Wire Leads (On/Off Valves Only)1112Leads00 = No Leads (Modulating Valves Only)0Options0 = None 13T = Three-Wire Signal Time-out(Non-Spring Modulating Valve Types Only)12345678910111213= FieldExample: Electric zone valve, On/Off, standard temperature, two-way, 3/4 in. sweat ends, 3.5 Cv, standard closeoff pressure spring return electric actuator, normally closed, 24VAC, 60 Hz, 18 in. wire leads.JT2313G13A020ValveActuatorNext >