Advanced Radiant Systems RS-30, Инструкция по установке, эксплуатации и обслуживанию

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Page 13 Residential Range RS_10062016al
GAS PIPING
• The gas meter and service must be sufficiently large to supply gas to the connected building gas load
including the heating equipment and any other gas fired equipment. Additionally, the gas distribution
piping must be designed according to local and national ordinances. Generally (low pressure) systems
designed with a maximum ½ in W.C. total pressure drop meet this requirement
• Gas supply pipe sizing must be in accordance with the National Fuel Gas Code, ANSI Z223.1 (NFPA 54)
in the US and CSA B149.1 and B149.2 Installation Codes in Canada.
• Before connecting burners to the gas supply system, verify that high pressure testing of the system
has been completed. Failure to do so may expose the burner components to damaging high pressure,
requiring replacement of key components.
• Flexible gas connectors of approved type must be installed as shown in Figure 30, in one plane, and
without sharp bends, kinks or twists. A smooth loop of approximately 12 in (30 cm) in diameter is best.
Failure to install the gas connection in the approved manner will result in a hazardous and potentially
deadly situation due to the movement of the heat exchanger and burner in the normal course of operation.
General Requirements
3" (7.62 cm) Max.
Displacement
12"
(30 cm)
Heater Movement
Vertical
(As Shown Below)
Alternate
Positions
Okay
CORRECT POSITIONS
INCORRECT POSITIONS
WRONG
WRONG WRONG
WRONG
Heater Movement
Heater
Movement
Heater Movement
Heater
Movement
Figure 13: Flexible Gas Connections