4
INTRODUCTION
• This manual provides informaon necessary for the installaon, operaon, and maintenance of the
water heater.
• The model descripon is listed on the rang plate which is aached to the right side of the casing of the
water heater. (Please refer to p. 7.)
• Please read all installaon instrucons completely before installing this product.
• The Water Heater is an instantaneous, tankless water heater designed to eciently supply endless hot
water for your needs.
• The principle behind the water heater is simple:
Burner
H e a t e xc h a n g e r
E x h au s t
F l o w s e ns o r
T h e rm i s t o r
Co mputer
bo ard
A C 2 40 V
G a s v a lv e
F a n
C o l d w a te 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 shows the main components
only and it is not to scale.
1. A hot water tap is turned on.
2. Water enters the heater.
3. The water ow sensor detects the water ow.
4. The computer automacally 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 ow to produce the right amount of
hot water at the correct temperature.
7. When the tap is turned o, the unit shuts down.
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