AERCO Modulex E8 Controls Guide - Manual (Page 47)

PR1: 11/30/12 Page 47 of 112
GF-115-C Modulex E8 Controller and BCM
Operations and Maintenance Manual
OMM-0084_0D
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526- 0288
5.2.4.3 Configuring MAX T-COL Parameter
To enter the MAX T-COL value, see instructions below.
Configuring MAX T-COLL Parameter
1. Set the ON/OFF switch on the front of the Modulex boiler to the ON position.
2. Open the swing-down hinged panel of the Controller.
3. Turn the Rotary Knob clockwise to the EXPERT menu. The first item (sub-menu) displayed
will be INSTALLATION.
4. The first sub-menu to be displayed will be INSTALLATION.
5. Press the Program key once to enter this sub-menu.
6. Using the Rotary Knob, scroll to MAX T-COLL. The display will show “MAX T-COLL” and
the current value stored in memory (86 to 230).
7. If the desired value for MAX T-FLOW is not displayed, press the Program Key 6 times to go
through the digit sequence.
8. Now press the Program key one more time. The red LED will light.
9. Rotate the Rotary Knob until the desired value for MAX T-COLL is displayed.
10. Press the Program Key once. The new value for MAX T-COLL will flash indicating it was
entered.
11. Continue scrolling through the INSTALLATION sub-menu until RETURN is displayed. Press
the Program Key to exit the INSTALLATION sub-menu.
5.3 0 to 10 Volt Remote Set Point Mode
This mode allows the boiler set point to be controlled by an external control signal. The following
paragraphs provide the procedures necessary to wire, configure and set the required functions
necessary to operate in the 0 to 10 volt remote set point mode.
5.3.1 Remote Signal Source Wiring Connections
When setting up to operate in the 0 to 10 volt remote set-point mode, the remote signal source
must be wired to terminals 1 (F-15) and 2 (GND) of connector number 3 (III) on the rear of the
Controller. See Section 6 for illustrations and pin-outs of the connectors located on the rear of
the Controller.