Resideo SV9510K2539/U Slow Opening SmartValve, Direct Hot Surface Ignition, Natural/LP with Included Conversion Kit, 1/2 in NPTx 1/2 in NPT

Item #: HONE-SV9510K2539/U
Mfr. part #: SV9510K2539/U
UPC: 085267297714

Key specifications

Pressure Rating1/2 psi
Inlet/Outlet Size1/2 in. NPT x 1/2 in. NPT
Body PatternStraight-through
Opening CharacteriSlow
Frequency50 Hz; 60 Hz

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$442.73

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Shipping details

Shipping weight: 2.1 lb
Box size: 6.55 × 5.6 × 3.6 in

Installation by a licensed gas technician is required. Confirm the part against your appliance's parts list.

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Brand	Resideo
Manufacturer part #	SV9510K2539/U
Inlet/Outlet Size	1/2 in. NPT x 1/2 in. NPT
Body Pattern	Straight-through
Opening Characteristics	Slow
Frequency	50 Hz; 60 Hz
Electrical Ratings	24 Vac
Pressure Rating	1/2 psi
Pressure Tapping	1/8 in. - NPT
Ambient Temperature	-40 F to +175 F
Mounting	0 to 90 degrees in any direction from the upright position of the gas control knob, including vertically.
Includes	LP Conversion Kit
Dimensions	3.2 in. wide x 4.9 in. high x 4.1 in.long
CSA	CSA International: 112395
Flame Failure Response Time (sec)	2 sec @ 5 µA
PrePurge	15 seconds
Ignition System Type	Direct Hot Surface Ignition
Ignition Sequence	17/27 sec
Type of Gas	Natural (LP with included conversion kit)
Flame Sense	HSI
Ignition Source	HSI
Ignition Trials To Lockout	4 trials
Ignition Trial Time (sec)	9 sec
Typical Ignition Hardware	Norton 271
Pressure Regulator Setting (psi)	3.5 in. WC
Pilot Gas Outlet	No
Capacity (ft³/hr)	Maximum at 1 in. P.D.--150 ft³/hr; Maximum--200 ft³/hr; Minimum--20 ft³/hr
Capacity (m³/hr)	Maximum at 1 in. P.D.--4.2 m³/hr; Maximum--5.7 m³/hr; Minimum--0.6 m³/hr
UPC	085267297714

The SV9510K2539 is a SmartValve system control from Resideo (Honeywell Home): gas valve and ignition module in one assembly, built for direct ignition appliances.

What makes a SmartValve different from a plain gas valve is that the ignition sequence lives inside it. A conventional system needs a separate ignition module wired to the valve; the SmartValve carries the timing, the trial-for-ignition and the flame proving itself, which removes a module, a harness and a set of connections from the appliance.

The valve is slow opening. Opening rate matters on ignition: too fast on a burner that was designed for a soft light-off gives a hard start, and too slow on one expecting full rate can drop out the flame proving before the burner is established.

Gas appliance safety. A gas valve must match the appliance it is fitted to — ignition system, capacity, inlet pressure and gas type. Replacement is work for a licensed gas technician, and the appliance manufacturer's parts list is what decides the correct valve, not the physical fit of the threads. If the replacement does not match, the appliance can fail to light, fail to prove flame, or overfire.