Hydro Smart 115 PLUS, Инструкция по установке и руководство пользователя

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13
-General-
• Minimum and maximum inlet gas pressures:
• Inlet gas pressures that fall outside the range of values listed above may adversely a ff ect the
performance of the water heater. These pressures are measured when the boiler is in full
opera tion and when it is in stanby.
• Inlet gas pressure must not exceed the above maximum values; gas pressure above the specified range
will cause dangerous opera ting c onditions and damage to the unit.
• Un til tes ting of the main gas line supply pressure is completed, ensure the gas line to the boiler
is disconnected to avoid any damage to the boiler.
• If the gas supply pressure to the heater is greater than the specified maximum, a field-supplied
regulator is required. The regulator must lower the gas pressure within the approved range.
• Install the gas regulator according to the manufacturer's ins tructions.
• The regulator must be sized for the water heater input and provide the specified pressures that
are listed on the ra ting plate.
• In the absence of minimum install distance, it is recommended that the gas regulator be installed
no closer than 3 ft. (1 m) from the boiler's inlet gas c onnection.
NOTICE
Gas type Inlet gas pressure
Natural Gas
Propane
Min. 4.0” W.C. (1.00 kPa) – Max. 10.5” W.C. (2.61 kPa)
Size the gas pipe to supply the necessary volume of gas for the boiler. Refer
to and follow the requirements listed in the current edition of ANSI Z223.1/NFPA
54 (USA), B149.1 (Canada), or local codes. Otherwise, fl ow c apabilities and output
temperatures will be limited.
Min. 8.0” W.C. (1.99 kPa) – Max. 14.0” W.C. (3.48 kPa)
1. Install a full port, manual gas shuto ff valve between the boiler and the gas supply line.
2. When the gas c onnections are completed, it is necessary to perform a gas leak test either by applying
soapy water to all gas fittings and observing for bubbles or by using a gas leak det ection device.
• The boiler and its individual shuto ff valve must be disconnected from the gas supply
piping system during any pressure tes ting of that system at test pressures in excess of 1/2 psi
(3.5 kPa).
• The boiler must be isolated from the gas supply piping system by closing its individual
manual shuto ff valve during any pressure tes ting of the gas supply piping system at test
pressures equal to or less than 1/2 psi (3.5 kPa).
3. Always purge the gas line of any inert gas, debris, and/or water before c onnecting to the gas inlet.
WARNING
• Do not use this boiler with any gas other than the one listed on the
ra ting plate unless the boiler has been properly converted.
• Ensure that any and all gas regulators used are opera tin g properly and
providing gas pressures within the specified range shown below. Excess gas
inlet pressure may cause serious accidents.
• If your boiler needs a gas conversion, refer to the ins tructions supplied
with the boiler and included with the conversion components.
GAS SUPPLY AND GAS PIPE SIZING