MODULEX CONTROLLER OPERATION
39
4.4.4 Displaying Temperatures Associated With DHW
Functions in the DISPLAY menu are used to display the actual DHW temperature measured by the
tank sensor. The swing-down hinged panel must be open to access and display these functions.
4.4.4.1 Viewing DHW Set Point and Actual DHW Temperature
The DHW set point and the actual DHW temperature measured by the tank sensor are displayed as
follows:
1. Turn the Rotary Knob to the DISPLAY menu. The first sub-menu displayed will be
INSTALLATION.
2. Continue turning the Rotary Knob clockwise until the HOT WATER sub-menu is displayed.
3. Press the Program Key to enter the HOT WATER sub-menu.
4. Turn Rotary Knob to display T-DHW RATED. The temperature value shown is the DHW set point
temperature.
5. Next, scroll to T-DHW. The temperature value shown is the actual DHW temperature measured by
the tank sensor.
6. Continue scrolling until RETURN is displayed. Press the Program Key to exit the HOT WATER
sub-menu.
4.4.4.2 Viewing DHW Set Point With T-BOILER DHW Function
To view the DHW set point with the T-BOILER DHW setting already added to it, proceed as follows:
1. Turn the Rotary Knob to the DISPLAY menu. The first sub-menu displayed will be
INSTALLATION.
2. Press the Program Key to enter the INSTALLATION sub-menu.
3. Turn the Rotary Knob clockwise until T-COLL DES is displayed along with corresponding
temperature reading. This T-COLL DES reading equals the DHW set point plus the value of the
T-BOILER DHW function. Therefore:
T-COLL DES = (T-DHW RATED) + (T-BOILER DHW)
4.5 DHW OPERATION USING AN AQUASTAT
Operation, wiring connections and Controller configuration settings for DHW heating using an aquastat
are virtually identical to the procedures previously described in paragraph 4.4 for the tank sensor.
Therefore, the following paragraphs describe only the differences between these two types of
applications.
4.5.1 Sensor Wiring Connections
To monitor the DHW temperature, connect the aquastat wire leads to Connector KF/SPF, Terminals 6
(F6) and 7 (GND). After the sensor is connected, turn the ON/OFF switch to the OFF position, then
back to the ON position. This is necessary to ensure that the Controller recognizes the added sensor.
IMPORTANT
The aquastat MUST be connected as described above, prior to
configuring the Controller for DHW operation. Also, the aquastat must be
closed (shorted) for the Controller to display the required sub-menu
functions.
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 ...
