MODULEX CONTROLLER OPERATION
31
4. OPERATING
MODE
SET-UP
&
PROGRAMMING INSTRUCTIONS
The following paragraphs provide the detailed set-up and programming procedures necessary to
configure the Modulex Boiler for service operation.
NOTE
When performing the following operating mode set-up procedures, refer to Section 2 of
this document for illustrations and descriptions of the Controller operating controls and
displays. Refer to Section 5 for Controller wiring connections.
4.1 INDOOR/OUTDOOR RESET MODE
This mode is used to adjust the boiler set point based on the outdoor air temperature and a
programmed heating curve. The heating curve can be customized using functions provided in the
USER menu. The outdoor air sensor provided with the Modulex boiler must be installed to enable this
mode of operation. The following paragraphs provide the procedures necessary to wire and configure
the controller for operation in the Indoor/Outdoor Reset mode.
4.1.1 Wiring Connections
The outdoor air sensor provided with the boiler should be mounted on an outer South or South-East
Wall away from windows, doors and vents. Never mount the outdoor air sensor in a location where it is
exposed to direct sunlight.
Connect the outdoor air sensor wire leads to terminals 9 (F9) and 10 (GND) of Connector 1 on the rear
of the Controller. Refer to the wiring diagrams in Section 5 for the locations of sensor connections. This
sensor must be connected prior to configuring the Controller in the following paragraph.
IMPORTANT
The outdoor air sensor MUST be connected as described above, prior to
configuring the Controller for Indoor/Outdoor Reset Mode operation.
4.1.2 Configuring the Controller for Indoor/Outdoor Reset Operation
The Indoor/Outdoor Reset Mode is configured using the USER menu. Proceed as follows:
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 USER menu. The first item (sub-menu) displayed will be
INSTALLATION.
4. Continue scrolling clockwise through the USER menu until the HTG CIRCUIT 1 sub-menu is
displayed.
5. With HTG CIRCUIT 1 displayed, press the Program key to enter the sub-menu.
6. Using the Rotary Knob, scroll to HEATSLOPE sub-menu item. The display will show
“HEATSLOPE” and the current value stored in memory (0.00 to 3.00).
7. If the desired value for HEATSLOPE is not displayed, press the Program Key. The red LED will
light.
8. Refer to the Heat Slope Diagram shown in Figure 4-1 to determine the required value for the
HEATSLOPE function based on the boiler installation design set point. The value to be entered
must be between 0 and 3.00.
Summary of Contents for Modulex E8
Page 1: ...Operation User Guide Modulex E8 Controller ...
Page 30: ...MODULEX CONTROLLER OPERATION 28 Figure 3 7 INSTALLATION Menu Flow Chart ...
Page 50: ......
Page 51: ...MODULEX CONTROLLER OPERATION A 1 APPENDIX A CONTROLLER MENU LISTINGS ...
