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7
Operating information
Powering up the control
When the unit is turned on, the controller will power up and turn on all segments in the display for two (2) seconds. The software
version is then displayed for two (2) seconds before the controller enters into the Normal Operating Mode.
Figure 7-3_Powering Up the Controller
Modes of operation (Mode)
The controller allows for two (2) modes of operation. Mode
2 for standalone operation and Mode 3 for external sequenced
operation. The mode of operation is selected using the MODE
item in the Adjust menu.
Mode 2 – Standalone Operation
This is the default mode that allows the electronic controller to
stage the unit ON and OFF to control water temperature.
Figure 7-4_Standalone Operation
46
Installation & Operation Manual
Mode 3 – External Sequencer Operation
This mode allows for the use of an external Building
Management System (BMS) or sequencer to be used to control
water temperature. The mode of operation is selected using the
MODE item in the Adjust Menu.
Figure 7-5_External Sequencer
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