American Water Heater NonCondensing Outdoor Natural Gas GT910NIE User Manual

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The dark square is the direction 
the dipswitch should be set to. 
DIRECT INTAKE VENT SYSTEM 
This water heat er may be converted to a d irect-v ent  (sealed combustion) appliance by installing 
an adapter (Part No.  9007669005 (TM -DV50) ) which will bring all requ ired combustible air from 
outside the building.  When installing the  direct-v ent  conversion kit, please follow all instructions 
included with the kit.   
•   The  water heater  must be installed in a location where the proper...

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VENTING INSTRUCTIONS 
 
WARNING: Improper venting of this appliance can result in excessive levels of  
carbon monoxide which can result in severe personal injury or death.
 
 
Th is water heater must be vented in accordance with the section  “Venting of Equipment of the 
current  edition of the Nat ural Fuel Gas  Code: ANSI Z223.1, a ll applicable local building codes, 
and  Section  8 of  B149.1 Natural Gas in Canada, Propane I nstallation Code in Canada.  
 
EXHAUST VENT  
This is a Category...

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VENT TERMINATION 
 
 
 
 
 
WARNING: Improper installation can cause naus ea or asphyxiation, severe injury 
or death  from carbon monoxide and flue gases poisoning. Improper installation 
will void product warranty. 
 
 
•   The vent terminat ion provides a means of installing vent pipe through the building wall and 
must be located in ac cordance with ANSI Z223.1/NFPA 54, or in Canada  with B149.1  and 
local applicable codes.  
•   A proper  sidewall vent terminat ion is recommended when the...

 
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Horizontal Installation  Diagram  
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
 
Vertical Installation Diagram  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
•   Regarding t he clearance from the terminal  to the air inlet or opening, refer to the next page.  
•   Install a condensation drain in the venting.  
•   Follow  the  vent manufacturer’ s instructions  and local codes.   
•   Do not common vent or connect any  vent  from other  appliances  to the water heater vent.  
•   Use 5...

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VENT CLEARANCES 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
   
Canada U.S.A 
Direct vent and 
other than Direct 
Vent 
Direct v ent   Other than Direct Vent  
A Clearance above grade, veranda, porch, 
deck, or balcony. 1 foot   1 foot  1 foot 
B  Clearance to window or door that may be 
opened.
  3 feet
  1 foot 
4 feet from below or 
side opening. 1 foot 
from above opening. 
C Clearance to permanently closed window * * * 
D 
Vertical clearance to ventilated soffit 
located above...

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Size the gas pipe appropriately to supply the necessary volume of gas required for the 
water heater using ANSI Z 223.1/N FPA 54 i n the USA  or  B149.1 in Canada or local 
codes.  Otherwise, flow capabilities and output temperatures will be limited.  
 
GAS SUPPLY AND GAS PIPE SIZING 
 
 
 
1.   Turn off all electric power to the water heater if service is to be performed.  
2.   Turn the manual gas v alve located on the outside of the unit clockwise   to the off position.
 
 
 WARNING:...

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Natural Gas Supply Piping 
Maximum Delivery Capacity of Cubic Feet of Gas  per Hour of IPS Pipe Carrying Natural Gas of 0.60 Specific Gravity 
Based on Pressure Drop of 0.5” WC  
  Based on Energy Content of 1 ,0 00 BTU/Cubi c Ft.: 910 (T -M50)  requires  380  Cubic Ft./hr.      Unit: Cubic Feet per Hour  
Pipe 
Size Length 
Diameter 10 20 30 40 50 60 70 80 90 100 125 150 200 
¾” 363 249 200 171 152 138 127 118 111 104 93 84 72 
1” 684 470 377 323 286 259 239 222 208 197 174 158 135 
1 ¼” 1,404...

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1. Turn off all electric power to the water heater if service is to be performed. 
2. Turn the manual gas valve located on the outside of the unit clockwise     to 
  the off position.  
 
  
-Measuring inlet gas pressure - 
 
 
 
 
 
 
 
The  water heater cannot perform properly without sufficient inlet gas pressure. Below are 
instructions on how to check the inlet gas pressure. THIS IS ONLY TO BE DONE BY A 
LICENSED PROFESSIONAL.  
 
1.   Shut off the manual gas valve on the supply gas line....

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WATER CONNECTIONS 
 
 
 
・Do not use this appliance  if any part has been submers ed under water. Immediately c ontact 
a  qualified installer or service agency  to  replace  a flooded  water heater . Do not attempt to 
repair the unit!  It must be replaced!  
・Do  not reverse the hot outlet and cold inlet connections to the w ater heater. This will not 
activate the water heater. 
 
1.   All pipes, pipe fittings, valves and other 
components, including soldering materials, must 
be suitable for...

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ELECTRICAL CONNECTIONS 
WARNING: Follow the electrical code requirements of the local authority having 
jurisdiction. In the absence of such requirements, follow the latest edition of the 
National Electrical Code ANSI/NFPA 70 in the U.S. or the lates t edition of CSA 
C22.1 Canadian Electrical Code, Part 1, in Canada.
 
 
CAUTION:  When servicing or replacing parts within the water heater , label all wires prior to 
disconnection to facilitate an easy and error free reconnection.  Wiring errors...