🔥 VR8304P4504 RESIDEO Intermittent Pilot Gas Valve – Step Opening, 3/4" x 3/4"
Single Stage, 24V AC Gas Control for Natural Gas Appliances
The Resideo VR8304P4504 is a single-stage, step-opening intermittent pilot gas valve designed for residential and commercial gas-fired appliances. Engineered for safety and precision, this compact valve provides reliable control with dual automatic shutoff, pilot adjustment, and pressure regulation. Perfect for use with a variety of control modules, including S86F, S86H, S860D, S8600F, S8600H, S8610, S90A, and S90B.
⚠️ Direct Replacement: Slant/Fin 411-929-000
✅ Key Features
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✅ Single-Stage Step Opening – Smooth, controlled gas flow for intermittent pilot ignition.
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✅ Dual Automatic Safety Valves – Solenoid-operated first valve responds to thermostat; diaphragm-operated second valve ensures shutoff if gas or power is interrupted.
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✅ Pressure Regulation – Maintains nearly constant gas output under supply fluctuations.
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✅ Compact, Accessible Design – All wiring, adjustments, and pilot outlet accessible from the top of the control.
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✅ Flexible Mounting – Can be mounted 0° to 90° in any direction from upright gas control knob, including vertical.
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✅ Pilot Gas Outlet – Compression fitting for 1/4" OD tubing.
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✅ Natural Gas Capacity – Up to 415,000 BTU/h; 3–5" WC range.
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✅ Compatibility – Works with ECO connector and various S-series control modules.
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✅ Conversion Kits Available – Natural ↔ LP conversion kits for standard or slow-opening valves.
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✅ ON-OFF Lighting Sequence – Ensures proper intermittent pilot ignition.
📊 Specifications
| Specification | Detail |
|---|
| Manufacturer |
Resideo (Honeywell) |
| Part Number |
VR8304P4504 |
| Type |
Intermittent Pilot Gas Valve, Step Opening |
| Stage |
Single Stage |
| Fuel Type |
Natural Gas |
| Max Capacity |
415,000 BTU/h |
| Operating Voltage |
24 V AC |
| Inlet Size |
3/4 in |
| Outlet Size |
3/4 in |
| Pressure Rating |
1/2 psi (3.5 kPa) |
| Pressure Range |
3–5" WC |
| Ignition Type |
Intermittent Pilot |
| Ambient Max Temperature |
175°F |
| Mounting Type |
0°–90° from upright |
| Pilot Outlet |
Compression fitting for 1/4 in. OD tubing |
| Frequency |
60 Hz |
| Compatible Control Modules |
S86F, S86H, S860D, S8600F, S8600H, S8610, S90A, S90B |
| Direct Replacement For |
Slant/Fin 411-929-000 |
⚠️ Common Symptoms When Replacement Is Needed
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Pilot fails to ignite or hold
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Burner cycles incorrectly
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Gas valve does not open or close with thermostat call
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Inconsistent gas pressure or output
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Valve leaks or shows signs of wear
❓ FAQ
Q: Can this valve be used with LP gas?
A: Yes — conversion kits are available for Natural ↔ LP use.
Q: What does “step opening” mean?
A: The valve opens in controlled stages to prevent pressure spikes and ensure reliable intermittent pilot ignition.
Q: Is this compatible with Slant/Fin boilers?
A: Yes — this is a direct replacement for Slant/Fin 411-929-000.
Q: How do the two automatic valves work?
A: The solenoid-operated valve opens on thermostat call for heat, while the diaphragm-operated valve opens under regulator control and shuts off if gas or power is interrupted.
🛒 Shopping Tips
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Confirm the inlet/outlet size matches your appliance (3/4" x 3/4").
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Ensure your system operates at 24 V AC.
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Verify compatibility with your control module (S86/S90 series).
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Keep OEM Resideo valves for safety compliance and warranty protection.
