Introduction - Takagi GS-2000W-AU Installation Manual

• 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 right side of the casing of the
water heater. (Please refer to p. 7.)
• Please read all installation instructions completely before installing this product.
• The Water Heater is an instantaneous, tankless water heater designed to efficiently supply endless hot
water for your needs.
• The principle behind the water heater is simple:
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 automatically ignites the burner.
5. Water circulates through the heat exchanger and it gets heated.
6. The computer will modulate the gas supply valve and water flow to produce the right amount of
hot water at the correct temperature.
7. When the tap is turned off, the unit shuts down.

INTRODUCTION

F l o w s e n s o r
T h e r m i s t o r
H o t w a t e r o u t l e t
E x h a u s t
B u r n e r
F a n
C o m p u t e r
b o a r d
A C 2 4 0 V
C o l d w a t e r i n l e t
*This diagram shows the main components
only and it is not to scale.
4
H e a t e x c h a n g e r
G a s v a l v e
G a s