GENERAL INFORMATION
1
1. GENERAL INFORMATION
1.1 General warnings
– Installation
Read all safety warnings in the
“Instruction Manual”. The additional safety issues outlined below must also be
followed completely when installing this Combination W ater heater.
Use of a properly calibrated electronic combustion analyzer MUST be used when installing, servicing or
converting this Combination Water heater from Natural Gas to LP or from LP to Natural Gas.
Failure to remove or maintain the area free of combustible material, gasoline and other flammable liquids or
vapors can result in severe personal injury, death or substantial property damage.
All applicable local, state, national and provincial codes, ordinances, regulations and laws must be observed.
For installations in Massachusetts
– code requires the units to be installed by a licensed plumbing or gas fitter.
The appliance cannot operate without the correct amount of air for combustion. Please make sure there is
sufficient inflow and outflow of air for ventilation, never obstruct the flow of ventilation air. Failure to provide the
proper amount of combustion air can result in a fire or explosion and cause death, serious bodily injury or property
damage.
If an external electrical source is utilized, the appliance, when installed, must be electrically grounded in
accordance with local codes or, in the absence of local codes, with the National Electrical Codes ANSI/NFPA 70
and or the CSA C22.1 Canadian Electrical Code.
Follow all local codes and/or the most recent edition of the National Fuel Gas Code (ANSI Z223.1/NFPA
54) in the USA or the Natural Gas and Propane Installation Code in Canada (CAN/CSA B149.1).
This unit is designed for indoor installations. DO NOT operate this unit without the vent piping connected.
Exhaust gases must be completely expelled out of the building.
Do not use this appliance if any part has been underwater. Immediately call a qualified service
technician to inspect the appliance and replace any part of the control system and any gas control which
has been underwater.
Be sure not to reverse the water and gas connections as this may damage the gas valves.
Water temperatures over 125
°
F can cause severe burns instantly or death from scalding. If the proposed
water heater outlet temperature is above 125
°
F, a thermostatically controlled mixing valve (or a
temperature limiting valve) for reducing point of use water temperature is recommended to reduce the
risk of scald injury. Contact a licensed plumber or the local plumbing authority for further information.
The appliance should be located in an area where leakage within the unit or at its connections will not
result in damage to the area adjacent to the appliance or to lower floors of the structure. PENSOTTI will
not be responsible for any damage resulting from leaking if adequate drainage is not provided. When
such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be
installed under the appliance.
Do not use this combination water heater for any purpose other than water heating and space heating.
The flow of combustion air and ventilation to the water heater must not be obstructed. The water heater area
must be kept clear and free from combustible materials, gasoline and other flammable vapors and liquids.
If the water quality is known to be highly acidic and/or extremely hard, water treatments (ie water softeners and
filtration) are recommended to maintain full warranty. Consult the local water authority.
DO NOT over-tighten fittings, as pipe and/or fitting damage may occur causing leakage.
DO NOT install water heater where subject to vibrations.
For other than a direct vent appliance, the appliance must be located as close as possible to a chimney or gas
vent.
Should overheating occur or the gas supply fails to shut off, turn the manual gas control valve to the
appliance. Contact a Service Technician immediately.
Clearance must be in accordance with the local installation codes and the requirements of the gas supplier.
Summary of Contents for PCI 18
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Page 9: ...GENERALInformation 6 ING ...
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Page 25: ...INSTALLATION INSTRUCTIONS 22 3 6 Piping Diagram ...
Page 33: ...INSTALLATION INSTRUCTIONS 29 Venting Pictures Illustrations ...
Page 63: ...INSTALLATION INSTRUCTIONS 59 6 8 Wiring diagrams ...