American Water Heater NonCondensing Outdoor Natural Gas GT110NE user manual

11    Page
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...

12  Page
WARNING
DO NOT adjust any DIPswitches on the upper bank for the 510 (T-D2) 
model.
NOTE: The dark squares indicate the direction the DIPswitches should be set to.
Installation
Installation Manual
110 (T-KJr2) and 310 (T-K4) models
Altitude0 to 2,000 ft. 
(DEFAULT)2,000 to 4,000 ft.4,000 to 6,000 ft.
Switch No. 3OFFONOFF
Switch No. 4OFFOFFON
ON8
7
6
5
4
3
2
1ON 8
7
6
5
4
3
2
1ON 8
7
6
5
4
3
2
1
510 (T-D2) model (Left bank of dipswitches)
Altitude0 to 2,000 ft. 
(DEFAULT)2,000 to 4,000 ft.4,000 to...

13  Page
VENTING INSTRUCTIONS
-General-
The water heater must be vented in accordance with the section “Venting of Equipment" of the current 
edition	of	the	 National	 Fuel	Gas	Code:	 ANSI	Z223.1/NFPA	 54	in	the	 United	 States	and/or	 Section	 8	of	 the		
B149.1 Natural Gas and Propane Installation Code in Canada, as well as applicable local building codes.
The manufacturer recommends the NovaVent line.  However, the following are also UL listed 
manufacturers: ProTech Systems Inc. (FasNSeal),...

14   Page
-Exhaust venting-
For the 110 Indoor (T-KJr2-IN), 310 Indoor (T-K4-IN), and 510 Indoor
(T-D2-IN) models
This is a Category III appliance and must be vented accordingly.  The vent system must be sealed airtight. 
All seams and joints without gaskets must be sealed with high heat resistant silicone sealant or UL listed 
aluminum adhesive tape having a minimum temperature rating of 350 °F (177 °C).  For best results, a vent 
system should be as short and straight as possible.
•	This water heater...

15  Page
Venting Illustrations-
For the 110 Indoor (T-KJr2-IN), 310 Indoor (T-K4-IN), and 510 Indoor (T-D2-IN) models
For details of the optional items, refer to the Installation manual for each Optional item.
Horizontal Installation with 
Direct-vent concentric termination
Wall
Direct-vent concentric termination
Installation of Direct-vent conversion kit 
(TK-TV10) with a water heater
Installation
Installation Manual
*Backflow preventer (Recommended for freezing weather conditions: 36 °F (2 °C) and...

16  Page
-Vent termination clearances-
CanadaU.S.A
Direct-vent and other 
than Direct-vent
Direct- 
vent
Other than  
Direct-vent
AClearance above grade, veranda, porch, deck, or 
balcony1 foot1 foot1 foot
B Clearance to window or door that may be opened3 feet1 foot 
4 feet from below or 
side opening. 1 foot 
from above opening.
CClearance to permanently closed window***
D
Vertical clearance to ventilated soffit located above 
the vent terminator within a horizontal distance 
of 2 feet (61cm) from the...

17  Page
-For sidewall terminations-
-For rooftop terminations-
For multiple sidewall exhaust terminations (e.g. multi-
unit systems), an exhaust termination must be at least 
1 ft. (305mm) away from another exhaust termination.  
An exhaust termination must also be at least 2 ft. (610 
mm) away from an inside corner.  (If the adjacent wall is 
less than 2 ft. (610 mm) of length, the minimum required 
distance away from the inside corner will be equal to the 
length of that adjacent wall.)
For...

18   Page
GAS SUPPLY AND GAS PIPE SIZING
-General-
•	The minimum and maximum inlet gas pressures are:
•	Inlet gas pressures that fall outside the range of values listed above may adversely affect the 
performance of the water heater.  These pressures are measured when the water heater is in full 
operation.
•	Inlet gas pressure must not exceed the above maximum values; gas pressure above the specified range 
will cause dangerous operating conditions and damage to the unit.
•	Until testing of the main gas...

19    Page
-Natural Gas Supply Piping-
Maximum delivery capacity of cubic feet of gas per hour of IPS pipe carrying Natural Gas with 0.60 specific gravity 
Based on pressure drop of 0.5" W.C.
Based on energy content of 1,000 BTU/Cubic ft.: The water heater requires 140 Cubic ft./hr for the 110 (T-KJr2) 
model, 190 Cubic ft./hr for the 310 (T-K4) model, and 199 Cubic ft./hr for the 510 (T-D2) model.
-Propane (LP) Supply Piping-
Maximum Capacity of Propane (LP) Based on 11” W.C. supply pressure at a...

20  Page
-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.
WATER CONNECTIONS
All pipes, pipe fittings, valves and other components, including soldering materials, must be suitable for 
potable water systems.
1. A manual shutoff valve must be installed on the cold water inlet to the water heater between the main 
water supply...