Manual

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INTRODUCTION
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 then gets hot.
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.
*This diagram illustrates
tankless water heater
design concepts only and is
not accurate to the water
heater’s physical
description.
 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 front cover 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 with the
manufacturer or its local re
p
resentative.
 This equipment is an on-demand, tankless water heater designed to efficiently supply
endless hot water for
y
ou
r
needs.
 The water heater has two heat exchangers. The primary and secondary heat exchangers
alternate roles, extending the life of the water heater (see p. 4).
 The principle behind the water heater is simple: