Get the gas control assembly wrong on a Rinnai A Series and you're looking at a problem that's going to make itself known straight away - wrong combustion, failed fault codes, no ignition, or a water temperature that's all over the place as soon as the demand changes. Now, the gas control assembly is one piece of kit that you can't really afford to get wrong.
The PA-KIT E (NG) is the genuine Rinnai gas control assembly for the A Series Infinity - and it's specifically for Natural Gas. What's more, it bundles up the main solenoid valve, the changeover solenoid valves and the modulating valve in one neat little package. Normally, the main solenoid valve will stay open as long as there's flow through the unit, but the gas flow rate is controlled by the modulating valve and the changeover solenoid valves to keep the water temperature constant, no matter what the flow rate or water temperature is like. The gas valve itself is electronically controlled and factory set - so you don't typically need to mess around with it during installation - unless the unit's not working right and you've ruled out all the other possible causes. In that case, you might need to make a couple of adjustments.
After you've swapped this assembly out, you'll need to verify the gas pressure and set it up correctly at the burner test point, using Rinnai's commissioning procedure and both high and low combustion modes.
The (NG) bit isn't just for show - this assembly is strictly for Natural Gas only. If you try to use it with an LPG installation, you'll end up with incorrect combustion and safety issues. Make sure you know what type of gas you've got before you order.
And - as with any gas work - any maintenance or repairs should be done by a Gas Safe registered engineer.
Order by 3 pm and we'll get it out to you same day. Still need to confirm your gas type or want to run through some fault diagnosis before we ship? Give us a call - we'll sort the right part for you on the first go.
| Brand | Rinnai |
|---|---|
| Part Number | PA-KIT E (NG) |
| Product Type | Gas Control Assembly |
| Gas Type | Natural Gas (NG) — NOT suitable for LPG |
| Compatible Range | Rinnai Infinity A Series Continuous Flow Water Heaters |
| Assembly Contents | Main solenoid valve, changeover solenoid valves, electronically controlled modulating valve |
| Control | Electronically controlled by PCB via sensor inputs |
| Function | Controls all gas delivery to the burner for temperature-accurate continuous flow operation |
| Post-Installation Requirement | Gas pressure verification and setting required following replacement |
| Part Type | Genuine OEM Replacement Assembly |
| Installation | Gas Safe registered engineer required |
/PA-KIT ENG-1.jpg?q=30)
