Takagi Flash Water Heater T-KJr, Installation Manual And Owner'S Manual, Page: 2 / 28

2
CONTENTS
Specification …………. 2
Introduction …………..3
For your safety …………..3-4
Installation …………. 5
General …………. 5
Accessories …………. 5
Outdoor Installation ………….5-6
Indoor Installation ………….6-7
Venting Instructions …………..7 -9
Gas Supply/Gas Pipe sizing………..10-11
Water Connection …………. 11-12
Electrical Connection …………. 13
Initial operation …………. 13
Normal operation …………. 14
Flow …………. 14
Temperature setting …………. 15
Freeze Protection Device …………. 15-16
Maintenance and Service …………..16-17
Error codes …………..17
For your Safety …………..18
Danger …………..19
Application …………..20
Space Heating …………..20
Dual-purpose heating …………..21
Storage Tank …………..22
Re-Circulation …………..22
Optional Items …………..23
Component Diagram …………24-25
Parts List …………..26
Output temperature Chart …………..27
SPECIFICATIONS
Natural Gas Input Min. 19,500 Btu
u t B 0 0 0 , 0 4 1 . x a M
LPG Input Min. 17,500 Btu
u t B 0 0 0 , 0 4 1 . x a M
Gas Connection ¾” NPT
Water Connections ¾” NPT
Water Pressure Min. 15 psi
i s p 0 5 1 . x a M
Natural Gas Pressure Inlet Min. 5.5” WC
C W ” 5 . 0 1 . x a M
LP Gas Pressure Inlet Min. 9.5” WC
C W ” 4 1 . x a M
Manifold Pressure Natural 3.2” WC
C W ” 2 . 3 e n a p o r P
. s b l 2 3 t h g i e W
Dimensions 20”x14”x6”
Ignition Electronic Ignition
Electrical Supply AC 120 V
*** NOTE ***
Check the rating plate to ensure this
product matches your specifications;
This appliance is certified for use at
altitudes from 0ft to 4500ft (1,370m) in
accordance to the latest CAN/CGA 2.17-
High Altitude Installation procedures at
normal manifold pressure 3.2" W.C.
(Natural Gas). Do not alter the orifice jets
or gas supply pressure. At altitudes of
4500ft to 5,000ft (1524m) lower the
manifold pressure to 2.9" W.C. (Natural
Gas). At 5000ft to 6000ft (1,829m), lower
the manifold pressure to 2.7" W.C. (Natural
Gas). For elevations above 6000ft or for
specific instructions on how to lower the
manifold pressure, please call the Takagi
office.
Manufacturer reserves the right to discontinue, or change at any time, specifications or
designs without notice and without incurring obligations.