AERCO BMK 2000DF - Manual (Page 38)

Benchmark 1500DF - 2000DF Boilers
CHAPTER 3 – OPERATION
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04/01/2014 Ph.: 800-526-0288 GF-144
Table 3-1: Operating Controls, Indicators and Displays – Continued
ITEM
NO.
CONTROL,
INDICATOR OR
DISPLAY
FUNCTION
10
MENU Keypad
Six (6) keys which provide the following functions for the Control Panel Menus:
MENU
Steps through the main menu categories shown in Figure
3-2. The Menu categories wrap around in the order
shown.
BACK
Allows you to go back to the previous menu level without
changing any information. Continuously pressing this key
will bring you back to the default status display in the
VFD. Also, this key allows you to go back to the top of a
main menu category.
▲ (UP) Arrow
When in one of the main menu categories (Figure 3-2),
pressing the ▲ arrow key will select the displayed menu
category. If the CHANGE key was pressed and the menu
item is flashing, pressing the ▲ arrow key will increment
the selected setting.
▼ (DOWN) Arrow
When in one of the main menu categories (Figure 3-2),
pressing this key will select the displayed menu category.
If the CHANGE key was pressed and the menu item is
flashing, pressing the ▼ arrow key will decrement the
selected setting.
CHANGE
Permits a setting to be changed (edited). When the
CHANGE
key is pressed, the displayed menu item will
begin to flash. Pressing the ▲ or ▼ arrow key when the
item is flashing will increment or decrement the displayed
setting.
ENTER
Saves the modified menu settings in memory. The
display will stop flashing.
11 AUTO/MAN
Switch
This switch toggles the boiler between the Automatic and
Manual modes of operation. When in the Manual (MAN)
mode, the front panel controls are enabled and the
MANUAL
status LED lights. Manual operation is for
service only.
When in the Automatic (AUTO) mode, the MANUAL
status LED will be off and the front panel controls
disabled.
12
VALVE POSITION
Bargraph
20 segment red LED bargraph continuously shows the
Air/Fuel Valve position in 5% increments from 0 to 100%