ENERGY KINETICS EK1C, Инструкция по установке и обслуживанию

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Accel CS Boiler - Gas Heat - Eighth Edition – January, 2015 27
GAS SUPPLY PRESSURE
Pressure required at gas valve inlet pressure port:
Natural Gas:
•
Minimum operating inlet gas pressure 3.5” w.c.
•
Maximum operating inlet gas pressure 10.5” w.c.
LPG:
•
Minimum operating inlet gas pressure 8.0” w.c.
•
Maximum operating inlet gas pressure 13.0” w.c.
Verify that with gas flowing during boiler start-up, while boiler is at high fire, and with all other gas appliances within the
building operating, that the inlet gas pressure exceeds the minimum of 3.5” w.c. gas pressure for natural gas or 8.0” w.c.
gas pressure for LPG.
Verify that with no gas flow with the boiler turned off and with all other gas appliances within the building turned off, that
the inlet gas pressure does not exceed the maximum of 10.5” w.c. gas pressure for natural gas or 13.0” w.c. gas pressure
for LPG.
Install 100% lockup gas pressure regulator in the gas supply line if the inlet pressure can exceed the maximum gas
pressure at any time. Adjust the lockup regulator for 10.5” w.c. maximum pressure for natural gas and 13.0” w.c. maximum
pressure for LPG.
WARNING: The supply gas pipe line should never be smaller than the connection pipe on the appliance although it can
be larger. The gas valve must be disconnected at the flexible pipe flare fitting and plugged at the outgoing
side of the flex pipe when checking for leaks in the gas supply piping at pressures exceeding ½ PSI (14”
w.c.). Recheck for leaks at the flare connection with the required gas pressure (use gas or air) any time the
union connection is opened for any reason.
WARNING: DO NOT adjust or attempt to measure gas outlet pressure. The gas valve is pre-set for the correct outlet
pressure suitable for both LPG and natural gas and requires no field adjustment. Attempts to adjust or
measure the gas outlet pressure may result in damage to the valve which can potentially cause severe
personal injury, death or substantial property damage.
WARNING: Ensure the unit is set to fire with correct fuel gas before start up. Check the factory rating label for type of
fuel. Check the gas valve for a LPG conversion label. If there is any conflict or doubt as to the burner set up,
remove the gas valve and verify that the LPG orifice is installed or not. Failure to ensure proper burner set up
could result in severe personal injury, death, or substantial property damage.
WARNING: New iron piping has been known to absorb gas odorant in some cases. Do not assume that just because you
can’t smell the gas odorant, that combustible gas is not present. Use gas detection equipment to test for
presence of combustible gas.