John-wood Takagi - 240H-340H-540H User Manual download pdf (Page 5)

5 Page

INTRODUCTION

• This manual provides information necessary for the installation, operation, and maintenance

ofthewaterheater.

• Themodeldescriptionislistedontheratingplatewhichisattachedtothesidepanelofthe

waterheater.

• Pleasereadallinstallationinstructionscompletelybeforeinstallingthisproduct.

• If you have any problems or questions regarding this equipment, consult the manufacturer or

its local representative.

• Thisequipmentisanon-demand,tanklesswaterheaterdesignedtoefficientlysupplyendless

hotwaterforyourneeds.

• These high-efficiency models have a built-in secondary heat exchanger that absorbs latent

heat from the exhaust gas.

• The T-H3J-DV / 240H, T-H3S-DV / 340H and T-H3-DV / 540H models are only to be installed

indoors.

• Theprinciplebehindtanklesswaterheatersissimple:

 *Thisdiagramillustratestanklesswaterheaterdesignconceptsonlyanddoesnotaccurately

representthewaterheater’sphysicaldescription.

1. Ahotwatertapisturnedon.

2. Water enters the heater.

3. Thewaterflowsensordetectsthewaterflow.

4. The computer initiates the fan motor and sends a signal to the igniter to create an ignition spark.

5. Thegasignitesandflamesappearwithintheburnerchamber.

6. Water circulates through the heat exchanger and then gets hot.

7. Usingthermistorstomeasuretemperaturesthroughoutthewaterheater,thecomputermodulates

thegasandwatervalvestoensureproperoutputwatertemperature.

8. Whenthetapisturnedoff,theunitshutsdown.

Introducon

Installaon Manual

Exhaust

Secondary

heat exchanger

Intake port

Condensate

drain port

Coldwaterinlet

Gas

Hotwateroutlet

Computer board

Fan motor

Gas valves

Thermistor

Burners

Thermistor

Bypassvalve

Primary

heat exchanger

Exhaust thermistor

Water control valve

Thermistor

Flowsensor

1 2 3 4 5 6 7 8 9 10 ... 59 60

Comments to this Manuals

No comments

John-wood Takagi - 240H-340H-540H User Manual Page 5

Comments to this Manuals

Related products and manuals for Water boiler John-wood Takagi - 240H-340H-540H