Honeywell 24V 3/4 in Sweat N.C. Zone Valve.
Two-way on-off low voltage valves consist of an actuator and valve assembly for controlling the flow of hot water.
- Manual opener (on all models, except straight-through, normally open valves) for valve operation on power failure; valve returns to automatic position when power is restored.
- All models may be installed without disassembling the valve.
- Compact construction for easy installation.
- Complete powerhead may be removed or replaced without breaking plumbing line connections or draining the system.
- Actuator motor may be replaced without removing the valve body or draining the system.
ApplicationHydronic ControlDimensions (in.)4 in. high x 3 1/2 in. wide x 2 3/8 in. deepDimensions (mm)102 mm high x 89 mm wide x 60 mm deepCommentsUse this valve in closed loop hydronic systems that do not contain dissolved oxygen in system water, such as fresh water from frequent source of makeup water. Valve designed for cycling (not constantly powered on) applications.Frequency50 Hz; 60 HzApprovals, Underwriters Laboratories Inc.UL Listed: File MH11826Tradeline ValueTradelineOperating Humidity Range (% RH)5 to 95% relative humidity, non-condensing.Voltage24 Vac; Power Consumption--7.7 VATimingNominal Open--15 secAmbient Temperature Range (F)125 F MaximumAmbient Temperature Range (C)52 C MaximumConnection TypeSweatBody PatternTwo-way, Straight-throughPipe Size (inch)3/4 in.Pipe Size (DN)DN20Current Draw0.32AFluid Temperature (C)10 C to 93 CFluid Temperature (F)50 F to 200 FMaximum Differential Pressure Ratings (Close-off) (psi)20 psiMaximum Differential Pressure Ratings (Close-off) (kPa)138 kPaElectrical Connections (in.)18 in. leadsElectrical Connections (mm)457 mm leadsCapacity (Cv)3.5 CvCapacity (Kv)3 KvValve ActionSpring return to closeValve TypeZone ValveMaterials (Body)BrassMaterials (Seat)BrassMaterials (Stem)Stainless SteelEnd Switch Rating50 VA pilot duty @ 24 V; 4.4 A running with 26.4 A inrush @ 120 VActuationTwo positionDe-energized PositionNormally ClosedAuxiliary End SwitchN.O. SPSTStatic Pressure Rating (psi)125 psiStatic Pressure Rating (kPa)862 kPaMaterials (Plug/Ball/Disc)Buna-N (NBR) Rubber BallMaterials (Packing)EPDM rubberManual OpenerYes