Aerco KC Series Installation, Operation & Maintenance Instructions Manual page 64

Gas fired installation, operation & maintenance instructions water heating system

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The temperature controller defaults back to the PRIMARY menu from the SECONDARY

menu or the SECURE menu if there is no activity in either of those menus after 4

• TO CHANGE TO THE SECURE MENU

While in the primary menu press the INDEX key and ⇓ arrow key.

OR while in secondary menu press and hold ENTER and ⇑ for 5 seconds.

The display will indicate:

• SECURE MENU to the SECONDARY MENU

Pressing either INDEX and ⇓ arrow key or ENTER and the ⇑ arrow key will return you

to the SECONDARY menu.

The display will indicate:

Anytime the SECURE menu is entered

operation upon going back to the PRIMARY or SECONDARY menu.

NOTE:

minutes.

NOTE:

the unit will shut down. It will resume normal

APPENDIX B

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