AERCO Modulex EXT 321 - 1123 - Manual (Page 84)

MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
E8 MENU Mode Operation (Door Open) 4.1.4
Opening the E8 controller hinged door reveals the E8 controls (Figure 4-4) and initiates the
MENU Mode, which enables access to an extensive set of software menus.
Figure 4-4: E8 MENU Mode Display Features
Table 4-3: E8 MENU Mode Features and Functions
ITEM FEATURE FUNCTION
A LCD display
Selected Menu/Sub-menus, parameter names/values, and selected
busses are indicated in the LCD display when in MENU Mode.
B
Mounting Key
Access Holes
Insert narrow screwdriver deep into holes and lift up controller to
remove.
C Change LED
When lit, this LED indicates that the value shown in the display can
be changed using the Rotary Knob (A).
D
Optical
Adaptor
For PC connection
E Program Key
Used to select a sub-menu level, select a parameter value to
change, or save a new parameter value.
F
Manual/
Automatic
Switch
A 2-position (10/2 o’clock) screwdriver adjustable switch. Normally,
this switch is set to the Automatic (2 o’clock) position to allow
program control of the boiler. When set to the Manual (10 o’clock)
position, a flashing “EMERG – MODE” message is displayed.
Heating Circuit 1 (HC1) pump and the first burner stage are switched
on. Pumps for Heating Circuit 2 (HC2) and Domestic Hot Water
(DHW) will also be switched on if sensors are installed and enabled.
The pump(s) will turn off when the flow temperature reaches the
value set for MAX T-FLOW (in EXPERT/HEAT CIRCUIT 1 menu).
The first burner stage will cut off when the boiler temperature
reaches the value set for MAX T-MODUL (in
EXPERT/INSTALLATION menu).
G Rotary Knob
Used to navigate through menus and parameters or adjust
parameters.
INSTALLATI
ON
A
B
C
D
E F
G
B
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12/01/14 Phone: 800-526-0288 GF-143