Navien CH-180 ASME Installation Manual

Also see for CH-180: Owner's operation manual User's operation manual Service manual Installation manual Operation manual

Navien CH-180 ASME Installation Manual Manual pdf 62 page image

Is there an approved pressure relief valve installed on the hot water outlet andspace heating outlet?Does the rating plate on the pressure relief valve indicate a BTU level equal tothe maximum BTU rating of the combination boiler?Is the pressure relief valve 1/2” on the hot water outlet?Is the pressure relief valve 3/4” on the space heating outlet?Has the pressure relief valve been installed on the hot outlet pipe and spaceheating outlet close to the exit of the combination boiler?Has a discharge drain tube been installed from the pressure relief valve to within6~8” of the floor?Does the gas supply match the combination boiler’s gas type indicated onthe rating plate?Is the gas line a minimum of 3/4” ID (inner diameter)?Is the gas supply line length and diameter sufficient to deliver the requiredBTUs?Has the gas supply line pressure been measured?Is the gas supply pressure sufficient for proper operation (within the rangesindicated in the specifications section of this manual)?Is the gas line equipped with a manual shut-off valve?Has the gas line been pressure tested and/or have all fittings been checked forleaks?Has the gas company inspected the installation (if required)?Pressure Relief ValveGas SupplyINSTALLATION CHECKLIST62