4
3.
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 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 end-
less hot water for your needs.
• The principle behind the water heater is simple:
B u r n e r
H e a t e x c h a n g e r
E x h a u s t
F l o w s e n s o r
T h e r m i s t o r
C o m p u t e r
b o a r d
A C 2 4 0 V
G a s v a l v e
F a n
C o l d w a t e r i n l e t
G a s
H o t w a t e r o u t l e t
*This diagram illustrates the main components 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 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 set temperature.
7. When the tap is turned off, the unit shuts down.
