Service Manual

1 Service

General Operation

How the water heater operates

The Armor water heater uses an advanced stainless steel heat

exchanger and an electronic control module that allows fully

condensing operation. The blower pulls in gas and air and

pushes flue products out of the water heater through the heat

exchanger and flue piping. The control module regulates blower

speed to control water heater firing rate. The gas valve senses

the amount of air flowing into the water heater and allows only

the right amount of gas to flow.

Sequence of operation

Table 1A shows control module normal sequences of operation

for water heating operation.

Access modes

User

The user can adjust tank target temperatures by pressing the

NAVIGATION dial when “SETPOINTS” is flashing at the

bottom of the display. The date and time, and the temperature

units can also be changed.

Installer

Most parameters are available only to the installer, accessible by

entering the installer password (5309).

Saving parameters (reference the Parameter Table -

Table 1D on pages 12 and 13 of this manual)

Please note that the brackets ([]) denote

screen status.

NOTICE

To save parameters and exit programming:

Press the RIGHT SELECT [SAVE] key and then press the

RIGHT SELECT [HOME] key.

To enter a parameter and continue programming:

Press the RIGHT SELECT [SAVE] key 1 time to return to the

parameter listings; press again to return to the menu listings.

Remember to press the RIGHT SELECT [HOME] key when

finished programming in order to save the changes made.

Service Manual