Spec Sheet
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Printed in U.S.A.150-G-0222
NATURAL GAS AND LIQUID PROPANE GAS
Mid Efficiency Model
Model
Number
Installation
GPM Flow Rate
at °F
Temperature Rise
RTG-199ME-N
Indoor / Outdoor*
Nat.
BTU/Hr.
Input
19,900-199,000
45°F
7.3
Uniform
Energy Factor
Nat. and LP
75°F
4.4
90°F
3.7 0.82
LP
BTU/Hr.
Input
19,900-199,000
Minimum
Water Flow
GPM
0.5
Maximum
Temperature
Setting
140°F
Model
Number
Approx.
Shipping
Weight
lbs.
A
Height
in.
RTG-199ME-N
6730
9
/16
B
Width
in.
17
13
/16
C
Depth
in.
10
7
/16
D
Intake/Exhaust
Center Line
in.
5
3
/16
G
Hot Water
Outlet
in.
6
9
/16
H
Cold Water
Inlet
in.
6
1
/8
J
Gas
Conn.
in.
2
11
/16
K
Condensate
Tee
in.
2
3
/8
L
Condensate
Tee
in.
2
5
/8
M
Gas
Conn.
in.
7
1
/2
I
Hot Water
Outlet
in.
6
5
/16
Model
Number
Installation
LPM Flow Rate
at °C
Temperature Rise
RTG-199ME-N
Indoor / Outdoor*
Nat.
kW
Input
5.6 - 58.3
25°C
27.7
Uniform
Energy Factor
Nat. and LP
41.7°C
16.6
50°C
13.9 0.82
LP
kW
Input
5.6 - 58.3
Minimum
Water Flow
LPM
1.9
Vent Conn.
in.
3
Vent Conn.
mm.
76
Maximum
Temperature
Setting
60°C
Model
Number
Approx.
Shipping
Weight
kg.
A
Height
mm
RTG-199ME-N
30.5776
B
Width
mm
452
C
Depth
mm
265
D
Intake/Exhaust
Center Line
mm
132
G
Hot Water
Outlet
mm
167
H
Cold Water
Inlet
mm
156
J
Gas
Conn.
mm
68
K
Condensate
Tee
mm
60
L
Condensate
Tee
mm
67
M
Gas
Conn.
mm
191
I
Hot Water
Outlet
mm
160
Infiniti Tankless
®
Gas Water Heater
General
Meets NAECA Requirements.
All potable water connections are 3/4" NPT (19mm). Gas connections are 3/4" (19mm). Recommended gas pipe size is 3/4" (19mm), for other gas pipe sizes
please consult installation and operation manual.
Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement.
Toxic chemicals, such as those used for boiler treatment, shall NEVER be introduced into the potable side of this system. The potable side may NEVER be
connected to any existing heating system or component(s) previously used with a non-potable water heating appliance.
For Propane (LP) Models change suffix “N” to “X”.
Requires an electrical power supply from a 120VAC 60Hz., properly rated receptacle and must be properly grounded. Power supply cord provided.
* Outdoor installation requires optional outdoor kit.
Uniform Energy Factor is based on the latest AHRI directory listings.
Intelligent Cascading Kit:
Part No. 7736502750 (One for each additional water heater)
B
A
C
J
L
M
K
GH
I
D
5/
1
2
"
5/
1
2
"
Optional
Intake
Intake Exhaust
B
A
C
J
L
M
K
GH
I
D
5/
1
2
"
5/
1
2
"
Optional
Intake
Intake Exhaust
B
A
C
J
L
M
K
GH
I
D
5/
1
2
"
5/
1
2
"
Optional
Intake
Intake Exhaust
Venting Maximum
allowable
exhaust vent
length
Elbow Equivalency
3"
4"
28.5 ft.
61.25 ft.
Maximum
allowable
intake vent
length
28.5 ft.
61.25 ft.
90˚
5.0 ft.
5.0 ft.
45˚
2.5 ft.
2.5 ft.
Maximum number of 90˚ elbows
Maximum number of elbows
3" Venting
5
4" Venting
7
Combined
maximum
allowable
vent
57.0 ft.
122.5 ft.