Honeywell, VR8345M4302/U, Pilot Ignition, 3/4 in, 0.5 psi
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Honeywell VR8345M4302/U Combination Gas Valve – 3/4″ NPT, 24V, Natural/LP Compatible
The Honeywell VR8345M4302/U is a dual-function combination gas control valve designed for use in gas-fired appliances with intermittent pilot systems. This control integrates manual shutoff, dual automatic valves, pressure regulation, pilot adjustment, and ignition system interface in a single compact unit. It supports operation with natural, manufactured, or LP gas and is field-convertible using the included kit.
With a capacity of up to 415,000 Btu/hr and standard 3/4″ NPT inlet and outlet, the VR8345M is suitable for residential and light commercial heating systems. It is engineered for installations requiring redundant safety shutoff and pressure control with 24 VAC operation.
Control Features
- Combination Design:Â Integrates manual valve, redundant automatic shutoff valves, servo pressure regulator, and pilot adjustment screw
- Gas Compatibility:Â Factory set for natural gas; includes conversion components for LP gas applications
- Ignition Interface:Â Compatible with intermittent pilot ignition systems
- Top Access Terminals:Â Wiring and adjustment points located on top for simplified installation
- Contaminant Protection:Â Internal inlet screen helps reduce risk from particulate matter in gas lines
Technical Specifications
- Model:Â VR8345M4302/U
- Inlet/Outlet Size:Â 3/4 in NPT (includes (2) 3/4 x 1/2 in reducer bushings)
- Capacity Range: 30,000 – 415,000 Btu/hr
- Coil Voltage:Â 24 VAC, 50/60 Hz
- Maximum Inlet Pressure:Â 0.5 psi (14.0 in. W.C.)
- Ambient Operating Temperature: -40°F to 175°F (-40°C to 79°C)
- Dimensions: 5-3/8 in H × 4-1/16 in W × 2-11/16 in D
- Electrical Connection:Â 1/4 in male quick-connect terminals
Installation Requirements
This valve is designed for upright installation in heating equipment and requires proper orientation and connection per the appliance manufacturer’s instructions. The installer must verify pressure settings, perform leak testing, and adjust the regulator and pilot settings if needed. Installation must be completed by qualified HVAC or plumbing professionals in accordance with local code requirements.
Common Applications
- Gas-fired furnaces, boilers, and unit heaters with intermittent pilot systems
- Residential and light commercial HVAC equipment using natural or LP gas
- Systems requiring dual automatic valves and integrated regulation
Component Inclusions
- (2) 3/4″ x 1/2″ NPT reducer bushings
- Natural to LP gas conversion kit (includes orifice and spring)
Operational Notes
The VR8345M4302/U includes redundant safety shutoff features in compliance with appliance certification standards. It must be properly wired to the system’s intermittent pilot control board. All installation and service work should follow Honeywell documentation and local safety regulations.
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Shipping Methods
We offer multiple shipping options to fit your needs:
Standard Shipping: 3–7 business days across the continental U.S.
Expedited Shipping: 1–3 business days for urgent orders.
Local Pickup: Available at our warehouse by appointment.
Order Processing
All in-stock orders are processed within 1–2 business days. You’ll receive a confirmation email once your order is placed and a tracking number as soon as it ships.
Orders placed after 3 PM or on weekends will be processed the next business day.
Shipping Costs
Shipping costs are calculated at checkout based on weight, dimensions, and delivery location. Large or heavy items (like water heaters or HVAC units) may require special freight handling.
Delivery Areas
We currently deliver throughout the United States. For bulk or international shipments, please contact our support team for a custom quote.
Damaged or Missing Items
If your shipment arrives damaged or incomplete, report it within 48 hours of delivery. Our support team will quickly arrange a replacement or refund.
Need Help?
If you have questions about your order or need help tracking a shipment, reach out to our customer support team at:
📧 sales@primesdistribution.com
📞 786-937-7081
