ENVI
®
Control
7
1.2
M
ENU
S
CREEN
From the main screen, pressing the
button provides access to the following sub-menus, shown below:
Standby
Information
Errors
Program Parameters
Configuration
Cascade Menu
Service
Use the
and
buttons to scroll to the desired sub menu and the
button to select that sub menu.
1.3
B
OILER
S
TATUS
S
CREEN
Pressing
while in the menu screen returns the boiler status (default) screen described in Section 1.0.
The default screen displays the current operating status. A list of possible operating statuses is shown below:
Standby
– boiler waiting for a call for heat or for temperature conditions to require heat
Checking Air Switch
– boiler is in its pre-ignition sequence, verifying the air switch is open prior to proceeding
Pre Purge - boiler is beginning the ignition sequence, purging the combustion chamber
Ignition - the igniter and gas valve are energized while flame is detected
Run
– flame is established, igniter is de-energized, gas valve is controlled to satisfy heat load
Post Purge - boiler has completed the burn sequence and is purging the combustion chamber
Post Pumping
– circulator pump is energized for a specified period to remove residual heat from the boiler
Reset
– the ENVI
®
control has detected an error and locked out the boiler. (
DO NOT reset the control without
determining and correcting the cause
)
Blocking (Alarm)-
Auto reset-
automatic reset lockouts that will self reset when the error condition clears.
Locking (Alarm)-
Manual reset-
manual reset lockouts requiring an operator to press the reset button.
If the ignition sequence is started it will be finished. Even if the demand is taken away, the sequence up to the burn state is
completed.
Menu
Standby
Information
Errors
Menu
Standby
Errors
