
E8 Controller and BCM for Modulex EXT
Installation, Operation & Maintenance Manual
CHAPTER 3: E8 CONTROLLER OPERATION
Page 12 of 108 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0093_0A
PRI: 06/24/2013 Phone: 800-526-0288 GF-136-C
3.1.2 HEATING Mode Selection (in NORMAL Mode)
Heating modes may be selected using the Rotary Knob on the controller when the hinged door
is in the closed position (NORMAL Mode). As the Rotary Knob is turned, each appropriate
heating mode symbol is displayed, in turn, along the lower edge of the display.
Mode changes take effect when the setting is not changed for 5 seconds. The symbols and
description for the available heating modes are shown in Figure 3-2.
Figure 3-2: E8 Display (HEATING Modes)
SYMBOL MODE NAME DESCRIPTION
Heating Mode
Selection
Turn the Rotary Knob to select the heating mode
required. The heating mode is indicated by a
symbol at
the bottom of the display. It takes effect when the setting
is not changed for 5 seconds.
Standby / OFF
Heat OFF and hot water (HW) preparation OFF, only
frost protection mode.
Automatic
Mode 1
Heat according to timer program 1; HW according to HW
program.
Automatic
Mode 2
Heat according to timer program 2; HW according to HW
program.
Summer
Mode
Heating OFF, HW according to HW program.
Day
Mode
24 Hour heating with comfort temperature 1; HW
according to HW program.
Night
Mode
24 Hour heating with reduced temperature; HW according
to program.
Service
Mode
Automatic reset after 15 minutes. Boiler regulated at
max boiler temperature.
Symbols:
Only the
currently
selected mode
will be
displayed.
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