This valve is typically used in air handling units on heating or cooling coils, and fan coil unit heating or cooling coils. Some other common applications include Unit Ventilators, VAV Box reheat coils and bypass loops. This valve is suitable for use in a hydronic system with variable flow. This valve is designed for modulating control using 2...10VDC or 4...20mA. (for 4...20mA control input a 500 ohm resistor is required). The valve is designed to fit in compact areas where proportional control is required using 24 VAC/VDC.

Valve Specifications
Service	chilled or hot water, 60% glycol
Flow characteristic	A port equal percentage
Action	Max 95 rotation
Sizes	1/2" to 1-1/4" (B230)
Type of end fitting	female, NPT
Materials:
Body	forged brass, nickel plated
Ball	stainless steel
Stem	stainless steel
Seats	fiberglass reinforced teflon® PTFE
Characterizing disc	TEFZEL®
Packing	2 EPDM O-rings, lubricated
Pressure rating	600 psi (1/2" to 1-1/4")
Media temp. range	0 F to 212 F [-18 C to 100 C]
Close off pressure	200 psi
Maximum differential:	For Characterized A-port
pressure (∆P)	20 psi for typical applications
	30 psi max for quiet service
	For full flow versions only (no A-disc) On/Off control 150 psi
Leakage	0%
Cv rating	A port: see product chart for values

Actuator Specifications
❏	LR24-SR US		Running time: 95 seconds constant
				Transformer sizing 4 VA
				(Class 2 power source)
				Control signal Y: 0 to 10 VDC,
				0 to 20 mA
				Input impedance: 100 kΩ
				(0.1 mA), 500Ω
				Operating range: 2 to 10 VDC,
				4 to 20 mA
				Feedback output U: 2 to 10 VDC,
				max. 0.7 mA
				Direction of rotation:
				reversible with switch CW/CCW,
				CW = CW with voltage
				CCW = CCW with voltage
All LR Proportional
Control				Proportional
Power supply				24 VAC 20% 50/60 Hz		24 VDC ± 10%
Power consumption				2 W
Electrical connection				3 ft, 18 GA, UL CL2P plenum cable
				1/2" conduit fitting (not on -1 models)
Overload protection				Electronic throughout 0 to 95 rotation
Torque				min 35 in-lb [4 Nm]
Position indication				Indicator/handle
Manual override				external push button
Humidity				5 to 95% RH, non-condensing
Ambient temperature				-22 F to	+122 F [-30 C to +50 C]
Storage temperature				-40 F to +176 F [-40 C to +80 C]
Housing type				NEMA type 2
Housing material rating UL94-5V (flammability rating)
Noise level		less than 35 dB (A)
Servicing		maintenance free
Agency listings		UL873 listed, CSA C22.2
		No. 24 certified, CE
Quality standard		ISO 9001