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Service, Installation & Care Manual
10
2.5 Gas Pressure Regulator
Installation of this appliance must be in accordance with local installation codes,
including:
1. The appliance and its individual shut off valve must be disconnected from the gas
supply piping system during any system pressure testing when this test pressure
exceeds 1/2 PSI (3.45 kPa).
2. The appliance shall be isolated from the gas supply piping system by closing the
manual shut off valve during any pressure test of the gas supply piping system at test
pressures equal to or less than 1/2 PSI (3.45 kPa).
Gas Connection
The external thread of equipment’s intake-tube is 3/4" NPT. For proper operation,
the gas supply line must be the same size or larger. Gas line size should not be reduced
at any point along the supply line.
Manual Shut Off Valve
A gas pressure regulator and a shut off valve supplied by the technical shall be
installed in the gas service line before the appliance - in a physical location where it can
be reached quickly in an emergency.
The gas pressure regulator (which accompanies the equipment) is of utmost
importance for its operation and is indispensable. The pressure regulator must be
installed in the equipment supply gas line (failure to install the pressure regulator will
void the equipment warranty).
Regulators are supplied with 3/4" NPT connection ranges.
The regulator is factory set by 102 mmH2O ((4" WC) water column) gas pressure at
connector (natural gas) and gas pressure at 254 mmH2O (10" WC) connector for LPG
gas operation. pipe, otherwise it may generate particles that will clog the
system injectors.
Before connecting the regulator, check the supply line pressure in the equipment.
This may not exceed the maximum pressure of 3.45 kPa (1/2 PSI). If the gas supply line
pressure is higher than indicated, use a pressure reducing regulator.
02. EQUIPMENT INSTALLATION