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T-KJr2-IN
Takagi T-KJr2-IN User Manual
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Installat
ion
14
│
Page
*
B
a
ckfl
o
w Pre
ven
t
e
r
(
R
ecom
m
en
d
ed for
freezi
n
g we
a
t
her conditions: 3
6
°F
and
below
)
**Vertical Co
n
de
n
s
at
io
n
D
rain
m
u
st be
in
stalle
d
a
c
co
r
dance
with
l
o
c
a
l
codes.
Ho
r
izontal Installation Diagram
With Direc
t-
V
ent
C
oncentric
Te
r
mina
tion
H
or
izontal Ins
t
a
l
lat
ion Diagram
(Wi
t
h dir
e
c
t-
v
enting)
Vertica
l
Ins
t
allation Diagram
(
With
dir
e
c
t
-ve
nting)
The w
a
ter h
eater
Intake
p
ort
o
f
Dire
ct-V
ent
Conversi
o
n Kit
Installation Diagram
o
f
Direct-Vent
Conversion
K
i
t with w
ater h
e
ater
Wall
Dire
ct
-
v
e
nt
Conce
n
tric
Termi
n
ation
Plat
e
of Dir
e
c
t
-
Ve
n
t Con
v
er
sion Kit
S
e
e t
h
e pic
ture below for
deta
i
led
c
o
nn
e
c
tion
instructio
n
s t
o
t
h
e Dir
ect-Ve
n
t Conver
sion Kit.
Vertic
a
l
Cond
e
n
s
a
ti
on
Dr
a
i
n
**
Ba
c
kflow
Preventer *
Wall
Sidew
a
ll
Ve
n
t
Termi
na
t
o
r
Roof Flashi
n
g
Verti
cal
Co
n
densati
on
Drain**
Ba
c
k
fl
o
w
Preve
n
ter
*
Ra
i
n Cap
Roof
Fire st
op
13
15
Table of Contents
Table of Contents
2
Specifications
3
Introduction
4
Safety Definitions
5
Safety Guidelines
5
Installation
6
General
6
Clearances
8
Included Accessories
8
Optional Items
9
High-Altitude Installations
11
Venting Instructions
12
Exhaust Venting
13
Vent Termination Clearances
15
Gas Supply and Gas Pipe Sizing
17
Gas Connections
17
Water Connections
20
Pressure Relief Valve
20
Electrical Connections
21
Remote Controller Connections
22
Pump Control Connections
23
Easy-Link System
24
Computer Board
25
Applications
28
Dual-Purpose Hot Water Heating
29
Initial Operation
30
Operating Instructions
31
To Turn off Gas to Appliance
31
For Your Safety Read before Operating
31
Operating Safety
31
Normal Operation
33
General
33
Temperature Settings
33
Without Remote Controller
33
Flow
35
Freeze Protection System
35
Maintenance and Service
36
Unit Draining and Filter Cleaning
36
General
37
Error Codes
39
Troubleshooting
37
Case Assembly
42
Components Diagram
42
Burner Assembly
43
Water Way Assembly
45
Water Inlet Section
45
Output Temperature Chart
46
Parts List
46
Output Temperature Chart
49
Limited Warranty
51
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Takagi T-KJr2-IN Specifications
General
Brand
Takagi
Model
T-KJr2-IN
Category
Water Heater
Language
English
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