American Water Heater NonCondensing UltraLow NOx Outdoor Natural Gas GT110UNE user manual

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CONTENTS
Installation Manual
　SPECIFICATIONS ........................................................................\
..................................................4
　INTRODUCTION ........................................................................\
..................................................5
　SAFETY GUIDELINES ...................................................................................................................\
.6
　INSTALLATION...

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Installation Manual
Installation Manual
CONGRATULATIONS
Congratulations and thank you for choosing our tankless water heater. 
Before use, we recommend that you read through this safety manual 
carefully.  Please refer to the back of the manual for details about the 
warranty.  Keep this manual for future reference.
If you lose the manual, contact the manufacturer or your local 
distributor.  When you call, please tell us the product name and the 
serial number of your unit written on the...

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Model
110U
 Indoor
(T-KJr2U-IN)
110U 
Outdoor
(T-KJr2U-OS)
310U 
Indoor
(T-K4U-IN)
310U 
Outdoor
(T-K4U-OS)
510U 
Indoor
(T-D2U-IN)
510U 
Outdoor
(T-D2U-OS)
Natural Gas Input 
(Operating Range)BTU/hMin.: 15,000  
Max.: 140,000
Min.: 15,000  
Max.: 190,000
Min.: 15,000  
Max.: 199,000
Gas Connection3/4" NPT
Water Connections3/4" NPT
Water Pressure*psi
(Mpa)15 - 150 (0.1 - 1)
Natural gas
Inlet Pressure
" W.C.
(kPa)
Min. 5.0 (1.24)
Max. 10.5 (2.61)
Manifold 
Pressure**
Natural
Gas
"...

5  Page
INTRODUCTION
•	This manual provides information necessary for the installation, operation, and maintenance 
of the water heater.
•	The model description is listed on the rating plate which is attached to the side panel of the 
water heater.
•	Please read all installation instructions completely before installing this product.
•	If you have any problems or questions regarding this equipment, consult the manufacturer or 
its local representative.
•	This equipment is an on-demand, tankless water...

6  Page
SAFETY GUIDELINES
SAFETY DEFINITION
GENERAL
   1.  Follow all local codes, or in the absence of local codes, follow the most recent edition of the National
							Fuel	 Gas	Code:		 ANSI	Z223.1/NFPA	 54	in	the	 USA	 or	CAN/CSA	 B149.1	Natural	 Gas	Installation	 Code	
       in Canada.
   2.  Properly ground the unit in accordance with all local codes or in the absence of local codes, with the
        National Electrical Codes:  ANSI/NFPA 70 in the USA or CSA standard C22.1 Canadian Electrical Code...

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INSTALLATION
GENERAL
1. Follow all local codes, or in the absence of local codes, follow the most recent edition of the National 
Fuel	 Gas	Code:	 ANSI	Z223.1/NFPA	 54	in	the	 USA	 or	CAN/CSA	 B149.1	Natural	 Gas	Installation	 Code	in	
Canada.
2. All gas water heaters require careful and correct installation to ensure safe and efficient operation.  
This manual must be followed exactly.  Read the “Safety Guidelines” section.
3. The manifold gas pressure is preset at the factory.  It is computer...

8  Page
•	Installation and service must be performed by a qualified installer (for 
example, a licensed plumber or gas fitter), otherwise the warranty will be 
void.
•	The installer (licensed professional) is responsible for the correct installation 
of the water heater and for compliance with all national, state / provincial, 
and local codes.
•	The manufacturer does not recommend installing the water heater in a pit or 
location where gas and water can accumulate.
•	Do not have the vent terminal...

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To p
Back
Bottom
Side
Side
Front
Maintain all clearances around 
the water heater.
CLEARANCES
ModelTo pBottomFrontBackSides
110U Indoor (T-KJr2U-IN)*310U Indoor (T-K4U-IN)*510U Indoor (T-D2U-IN)*
12 in.
(305 mm)
12 in.
(305 mm)
4 in.**
(102 mm)
0.5 in.
(13 mm)
3 in.
(76 mm)
110U Outdoor (T-KJr2U-OS)310U Outdoor (T-K4U-OS)510U Outdoor (T-D2U-OS)
36 in.
(914 mm)
12 in.
(305 mm)
24 in.
(610 mm)
0.5 in.
(13 mm)
3 in.
(76 mm)
*Standard indoor installations and direct-vent indoor installations have...

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2. Direct-vent conversion kit: 9007667005
   (TK-TV10)
This kit can be used 
to convert the water 
heater from a single 
vent system to a direct-
vent (double vent) (or 
sealed combustion) 
system with a 3 in. (76 mm) intake.  Install this 
conversion kit in accordance with the installation 
instructions and any applicable codes.
The pipe cover protects the plumbing 
pipes to the water heater from 
unexpected adjustments. This pipe 
cover is fixed to the bottom of the 
water heater, which hides...