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CONTENTS
Specifications ………….
2
Introduction …………..3
For Your Safety
…………. 3-4
T-H1 Components
…………. 4
Installation ………….
5
•
General
………….
5
•
Accessories
…………. 5
•
Outdoor Installation
…………. 5-6
•
Indoor Installation
…………. 6-7
•
Venting
Instructions
…………..7-9
•
Gas Supply / Gas Pipe size………..10-11
•
Water
Connections
………….11-12
•
Electrical
Connections ………….13
•
Initial
Operation
………….13
Normal Operation
…………..14
•
Flow
…………..14
•
Temperature
Settings …………..15
•
Freeze Protection Devices………….16
•
Maintenance and Service …………..16-17
•
Error
Codes
…………..17
Wiring Diagram
…………..18
For your safety
…………. 19
Danger ………….
20
Applications
………… 21
•
Space
Heating
…………..21
•
Dual-purpose
heating …………..22
•
Storage
Tank
…………..23
•
Re-Circulation
…………..23
Optional Items
…………..24
Component Diagram
…………25-28
Part List
…………29-30
Output temperature Chart
…………..31
SPECIFICATIONS
Natural Gas Input
Min. 15,000 Btu
Max. 199,000 Btu
Propane (LP) Gas Input
Min. 18,000 Btu
Max. 190,000 Btu
Gas Connection
¾” NPT
Water Connection
¾” NPT
Condensate water drain ½” NPT
Water Pressure
Min. 15 psi
Max. 150 psi
Natural Gas Pressure Inlet
Min. 5” WC
Max.
10.5”
WC
LP Gas Pressure Inlet
Min. 11” WC
Max. 14” WC
Manifold Pressure
Natural 2.6” WC
Propane 2.8” WC
Weight 90
lbs.
Dimensions 29.5”x18.9”x11.8”
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 2.6" (Natural
Gas) W.C. Do not alter the orifice jets or
gas supply pressure. At altitudes of 4500ft
to 5,000ft (1524m) lower the manifold
pressure to 2.4 (Natural Gas) " W.C. At
5000ft to 6000ft (1,829m), lower the
manifold pressure to 2.2" (Natural Gas)
W.C. 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.