Natco F85H Fire Coil 85 200 Installation And Operation Instructions Manual
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Fire Coil 85 (200, 300, 400) Page 15SECTION 3.Gas Supply and Piping3.1 Gas Supply and PipingGas piping should be supported by suitablehangers or floor stands, not by the appliance.The Fire Coil 85’s gas train allows the user topipe the gas from either the right side or the left sideof the unit. As shipped, the right side of the gas train iscapped off, and there is a manual valve on the left side.If desired, the manual valve on the left side of the gastrain may be moved to the right side, and the cap onthe right side may be moved to the left.Review the following instructions beforeproceeding with the installation.1. Verify that the appliance is fitted for the propertype of gas by checking the rating plate. FireCoil 85 appliances are equipped to operateat elevations up to 10,000 feet (3050m). FireCoil 85 appliances may be adjusted to operateproperly at altitudes above 2500 feet (see Section6.5.2) and the input will be reduced if the heatingvalue of the gas supply is below sea level values.2. The maximum inlet gas pressure must notexceed 13" w.c. (3.2kPa). The minimum inlet gaspressure is 5 in. w.c. (1.2 kPa).3. Refer to Table 7, size supply.4. Run gas supply line in accordance with allapplicable codes.5. Locate and install manual shutoff valves inaccordance with state and local requirements.6. A sediment trap must be provided upstream ofthe gas controls.7. All threaded joints should be coated withpiping compound resistant to action of liquefiedpetroleum gas.8. The appliance and its individual shutoff valvemust be disconnected from the gas supply pipingduring any pressure testing of that system at testpressures in excess of 0.5 psig (3.45 kpa).9. The unit must be isolated from the gas supplysystem by closing its individual manual shutoffvalve during any pressure testing of the gassupply piping system at test pressures equal to orless than 0.5 psig (3.45 kpa).10. The appliance and its gas connection must beleak tested before placing it in operation.11. Purge all air from gas lines.WARNINGDo not use open flame to check for leaks. An openflame could lead to explosion, which could result inproperty damage, serious injury or death.AVERTISSEMENTNe recherchez pas les fuites avec une flamme nue.Une flamme nue peut provoquer une explosion quipeut causer des dommages matériels, de sérieusesblessures corporelles ou la mort.NOTE: The Fire Coil 85 appliance and all othergas appliances sharing the gas supply line mustbe firing at maximum capacity to properly measurethe inlet supply pressure. The pressure can bemeasured at the supply pressure port on the gasvalve. Low gas pressure could be an indication ofan undersized gas meter, undersized gas supplylines and/or an obstructed gas supply line.Distance from Gas Meter or Last Stage RegulatorModel andGas Type 0-100' 0-31 m 100-200' 31-61m 200-300' 61-91m200 natural 1¼" 3.2 cm 1¼" 3.2 cm 1¼" 3.2 cm200 propane 1" 2.5 cm 1" 2.5 cm 1¼" 3.2 cm300 natural 1¼" 3.2 cm 1½" 4.0 cm 1½" 4.0 cm300 propane 1 2.5 cm 1¼" 3.2 cm 1¼" 3.2 cm400 natural 1¼" 3.2 cm 1½" 4.0 cm 2" 5.0 cm400 propane 1¼" 3.2 cm 1¼" 3.2 cm 1½" 4.0 cmNotes:1. These figures are based on 1/2" (0.12 kPa) water column pressure drop.2. Check supply pressure and local code requirements before proceeding with work.3. Pipe fittings must be considered when determining gas pipe sizing .Table 7. Gas Piping Size. |
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