Lochinvar SNR200-100 用户手册

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2  
General venting 
(continued)
       
Installation & Service Manual
TM
Air contamination 
Pool and laundry products and common household and hobby 
products often contain fluorine or chlorine compounds.  When 
these chemicals pass through the water heater, they can form 
strong acids.  The acid can eat through the water heater wall, 
causing serious damage and presenting a possible threat of flue 
gas spillage or water heater water leakage into the building.
Please read the information given in Table 1A, page 10, listing 
contaminants and areas likely to contain them.  If contaminating 
chemicals will be present near the location of the water heater 
combustion air inlet, have your installer pipe the water heater 
combustion air and vent to another location, per this manual.
If the water heater combustion air inlet is  
located in a laundry room or pool facility, 
for example, these areas will always contain 
hazardous contaminants.
To prevent the potential of severe personal 
injury or death, check for areas and products 
listed in Table 1A, page 10 before installing 
the water heater or air inlet piping.
If contaminants are found, you MUST:
  • Remove contaminants permanently.  
 —OR—
  • Relocate air inlet and vent terminations 
to other areas.
 WARNING
 WARNING
Optional room air 
 WARNING
When utilizing the single pipe method, 
provisions for combustion and ventilation 
air must be in accordance with Air for 
Combustion and Ventilation, of the latest 
edition of the National Fuel Gas Code, 
ANSI Z223.1, in Canada, the latest edition 
of CGA Standard B149 Installation 
Code for Gas Burning Appliances and 
Equipment, or applicable provisions of 
the local building codes.
Commercial applications utilizing the Shield water heater 
may be installed with a single pipe carrying the flue products 
to the outside while using combustion air from the equipment 
room.  In order to use the room air venting option the 
following conditions and considerations must be followed.
 
• 
The unit MUST be installed with the appropriate 
  room 
air 
provisions.
 
•  The equipment room MUST be provided with 
    properly sized openings to assure adequate 
 
 
combustion air.  Please refer to instructions provided 
 
 
with the room air kit.
 
• 
There will be a noticeable increase in the noise level 
 
 
during normal operation from the inlet air opening.
 
• 
Using the room air configuration makes the unit 
 
 
vulnerable to combustion air contamination from 
 
 
within the building.  Please review Section 1, 
 
 
Prevent  Combustion Air Contamination, to ensure 
  proper 
installation.
 
• 
Vent system and terminations must comply with the 
 
 
standard venting instructions set forth in this 
  manual.
 NOTICE
Optional room air is intended for 
commercial applications.  Combustion 
air piping to the outside is recommended 
for residential applications.