Domestic Hot Water Operation Using A Tank Sensor; Sensor Wiring Connections; Configuring The Controller For Dhw With A Tank Sensor - Watts AERCO EXT Installation, Operation & Maintenance Manual

Ufly Controller and BCM for Modulex EXT
CHAPTER 4: UFLY SETUP AND PROGRAMMING

4.4 Domestic Hot Water Operation Using A Tank Sensor

The following procedures describe the wiring connection and Ufly Controller configuration to
provide domestic hot water (DHW) using a tank sensor installed in a thermowell.

4.4.1 Sensor Wiring Connections

To monitor the DHW temperature, connect the tank sensor wire leads to the Input/Output box,
connector Y2, terminals 6 and 8. 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.

4.4.2 Configuring the Controller for DHW With a Tank Sensor

The DHW production is configured in the DHW Menu as follows:
I M P O R T A N T !
The tank sensor MUST be connected (Section 6.4.1), prior to configuring the Controller for DHW
operation. If the sensor is not connected, many required functions will not display.
Access the DHW menu:
OMM-0159_A_A • 6/28/2022 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
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