Question about Rinnai Webstone The isolator EXP tankless water heater Service Valves WRIK
Unit will run with water running on 1 or 2 but when a third faucet is opened it shuts down. gas piping size is correct and clear intake and exhaust. I disconnected and reconnected all connections and unit runs fine on 1 faucet even to fill up 2 baths (one after another.
The gas pipe size that heater has to 3/4 pipe size.If you got anything any smaller than that is won't give enough gas.Check the gas psi at the heater.If it's bottle gas you should 11 psi.and natural gasline you need 5psi.
Posted on Mar 15, 2009
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