06/05/13 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526- 0288 Page 53 of 112
Modulex E8 Controller and BCM
Operations and Maintenance Manual
5.4.2 Configuring the Controller for DHW With a Tank Sensor
Both EXPERT and USER Menus will be used to configure the Controller for DHW production.
The DISPLAY Menu will be used to display the set point. Follow instructions below to configure
the controller for DHW with a tank sensor.
IMPORTANT
The tank sensor MUST be connected (Section 5.4.1), prior to
configuring Controller for DHW operation. If sensor is not
connected, many required functions will not display.
Configure the Controller for DHW with a Tank Sensor
1. With Controller front cover closed, turn Rotary Knob until Faucet symbol ( ) appears in
the lower part of the of the display window.
2. Next, open Controller front panel.
3. Turn Rotary Knob clockwise to EXPERT, HOT WATER sub-menu.
4. With HOT WATER displayed, press the Program Key to enter sub-menu.
5. Scroll through HOT WATER sub-menu turning Rotary Knob clockwise until THERM INPUT
is displayed with the current setting (00 or 01). If 00 is displayed (sensor), skip to step 6.
6. If the THERM INPUT is currently set to 01 (Aquastat), press Program Key to change the
THERM INPUT. The display will show “CODE NO.”, requesting entry of a valid code.
7. Enter code 0000 (four zeros) by pressing the Program Key four times. The red LED will
remain lit while the four code digits are entered.
8. With THERM INPUT again displayed and the red LED lit, turn Rotary Knob to change to 00
for sensor operation.
9. Press Program Key to store 00 setting for THERM INPUT. Red LED is off.
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