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Table of Contents
Specifications…………………………….. 2
For Your Safety…………………………... 3
Operation…………………………………. 4
General…………………………… 4
Turning It On……………………… 4
Turning It Off……………………… 4
Temperature……………………… 4
Flow……………………………….. 4
Freeze Protection………………... 5
Installation………………………………… 6
General…………………………… 6
Accessories………………………. 6
Electrical Connections…………... 6
Wiring Diagrams…………………..7,8
Gas Supply Piping………………. 9
Water Plumbing………………….. 10
Pressure Relief Valve……………. 10
Wall Hanging Installation………... 11
Standing Installation……………... 11
Outdoor Installation……………… 11
Indoor Installation………………... 12
Combustible Air Supply…. 12
Exhaust Venting…………. 13
Manufactured Home (Mobile Home)
Installation……………….………... 13
Indoor……………………… 13
Outdoor……………………. 13
Initiating the Appliance…………... 14
Initial Operation…………………... 14
Space Heating Application……….. 15
Applications………………………. 19
Storage Tank……………... 19
Recirculation……………… 19
Maintenance……………………………… 20
Troubleshooting………………………….. 20-22
Optional Items……………………………. 23
TK-RE01………………………….. 23
TK-BK01………………………….. 23
TK-TV01…………………………... 23
TK-TV03…………………………... 23
TK-TV04…………………………… 23
Dipswitch Settings………………………... 24
Indoor NG Dipswitch Settings…… 24
Outdoor NG Dipswitch Settings…. 24
Indoor LP Dipswitch Settings……. 25
Outdoor LP Dipswitch Settings….. 25
Exploded Diagrams………………………. 26-29
Parts List………………………………….. 30
Flow Chart……………………………….. 31
Specifications
Natural Gas Input Min. 20,000 Btu
Max. 185,000 Btu
LPG Input Min. 19,000 Btu
Max. 175,000 Btu
Gas Connection ¾” NPT
Water Connections ¾” 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 2.3” WC
Propane 2.5” WC
Weight 60 lbs.
Dimensions 24.5”x16.5”x8.3”
Ignition Electronic Ignition
Electrical Supply AC 120 V
***
• Inlet gas pressure must not exceed the
above maximum values.
• For gas pressures lower than 5” WC for
natural gas, call the manufacturer.
• Before installing in areas over 4,500 feet
above sea level, contact the manufacturer
for high altitude adjustment instructions.
• Check the rating plate to insure this
product matches your specifications.
• Takagi - USA is constantly improving our
products, therefore specifications are
subject to change without prior notice.