The gas control valve in a Rinnai Infinity 32e or HD70E isn't a simple on/off component — it's an electronically controlled assembly that continuously manages gas flow to the burner, adjusting in real time as demand changes. During normal operation, the PCB holds the main solenoid valve open while there's flow through the unit and the burner is required, while the modulating valve and three changeover solenoid valves work together to keep outlet water temperature stable regardless of flow rate or inlet temperature.
The modulating valve directs gas to the three changeover solenoid valves, which route it to the two burner banks — one, both, or all three sections firing depending on what the system needs — with the PCB making constant adjustments based on signals from the water flow sensor, flow control device, bypass flow control device, water temperature thermistors, and combustion fan speed sensor. Because so much depends on this one assembly, a fault here tends to affect gas delivery, combustion, and temperature control simultaneously.
The P70EV-KITE is the genuine Rinnai gas control valve assembly for both the Infinity 32e and HD70E, made to the same specification as the original factory-fitted component.
⚠ Important: Gas pressure should be verified before assuming this component is at fault — a high incoming gas pressure can prevent a solenoid from opening and mimic a valve fault. Confirm supply pressure first. All work on this component must be carried out by a Gas Safe registered engineer.
Fault codes 52 and 71 on a 32e or HD70E, or combustion and temperature problems that don't trace back to wiring, point squarely at this assembly — and because it integrates the main solenoid, three changeover solenoids, and modulating valve in one part, fitting it restores full gas control across both models in one go rather than chasing individual valves. Just confirm incoming gas pressure first, since a supply-side fault can look identical to a failed valve.
Order the Rinnai P70EV-KITE 32e/HD70e Gas Control Valve online today.
| Manufacturer | Rinnai |
|---|---|
| Part Number | P70EV-KITE |
| Product Type | Gas Control Valve Assembly |
| Compatible Models | Rinnai Infinity 32e (REU-V3232W) & HD70E (REU-VRM3237) |
| Assembly Contents | Main Solenoid Valve, 3x Changeover Solenoid Valves, Modulating Valve |
| Control | Electronically Controlled by PCB via Sensor Inputs |
| Function | Regulates All Gas Delivery to the Burner for Temperature-Accurate Continuous Flow Operation |
| Appliance Type | Continuous Flow Gas Water Heater |
| Installation | Gas Safe Registered Engineer Required |
