Electrolux SBB800S-1 Installation Manual download pdf (Page 23)

Pressure Test

The appliance and its gas connections must be leak tested before placing the appliance in operation.

The appliance must be isolated from the gas supply piping system by closing its individual manual

shutoff valve during any pressure testing of the gas supply piping system at test pressures equal

to or less than ½ psig (3.5 kPa). We do not recommend pressure testing in excess of ½ psig

(3.5kPa). If it must be done, the appliance and its individual shutoff valve must be completely

disconnected from the gas supply piping system during the test process.

Pipe Sizing/Flexible Connectors

A gas shutoff valve must be installed on the supply line. Gas ex lines are not recommended unless

the minimum inside diameter is ¾” or greater and the rated capacity of the connector is equal to

or greater than the BTU capacity of the water heater. Gas piping shall be in accordance with local

utility company requirements and/or in the absence of local codes, use the latest edition of

National Fuel Gas Code (NFPA54GC), ANSI Z223.1. Size the gas line according to total btuh

demand of the building and length from the meter or regulator so that the following supply

pressures are available even at maximum demand.

WARNING

Natural Gas Supply Pressure

Min 4” WC

Max 10.5” WC

LP Gas Supply Pressure

Min 8” WC

Max 14” WC

Reference Tools & Sample Calculations

The tables and samples below are for reference only. The professional sizing and installing the gas

line should always run the appropriate calculations before all installations.

CAUTION

Which Table to Use

r'PS/(JOTUBMMBUJPOTXJUIUIFJOJUJBMTVQQMZQSFTTVSFBUQPJOUPGEFMJWFSZBUUIFNFUFSGPSFYBNQMFJT

less than 8” WC, use the 0.5” WC pressure drop table (Table 1).

r'PS/(JOTUBMMBUJPOTXJUIUIFJOJUJBMTVQQMZQSFTTVSFBUQPJOUPGEFMJWFSZJTHSFBUFSUIBOPSFRVBMUPu

WC, use the 3.0” pressure drop table (Table 2).

r'PSBMM-1JOTUBMMBUJPOVTF5BCMF

The inlet pressure must be at least 5” WC for NG or 8” WC for LP for all appliances in the gas system.

If the inlet gas pressure drops below 5” WC for NG or 8” WC for LP, the heater may continue to operate,

but the other appliances in the house may experience ame loss or ignition failure, which can result in

gas leakage into the home. Refer to the NFPA 54 for details.

Please contact Electrolux Home Products, Inc. for details. For corrugated stainless steel tubing (CSST)

capacity tables, please consult with the manufacturer.

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Electrolux SBB800S-1 Installation Manual Page 23