Superior Radiant LA series, Инструкция по установке, эксплуатации и обслуживанию

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Series-LA/LX/LXR Page 24 6/15/2010
Gas Piping
General Requirements
•
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" inch 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 CAN/CGA 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 28A, in one plane, and
without sharp bends, kinks or twists. A smooth loop of approximately 12" inches 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. The gas shut off valve must be installed parallel to the burner gas inlet connection.
3" (7.62 cm) Max.
Displacement
12"
(30 cm)
Heater Movement
Vertical
(As Shown Below)
Alternate
Positions
Okay
CORRECT POSITIONS
Figure 28A
Heater Movement
INCORRECT POSITIONS
WRONG WRONG
WRONG
WRONG
Figure 28B