Configuring the Device
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4.3
DHW Priority Options
Refer to the following options to configure the system’s DHW supply modes.
4.3.1
DHW Priority Mode
When the system is configured for the DHW priority mode, space heating does
not operate if there is DHW demand (the flow switch is ‘closed’).
Set the DIP switch (SW) #2 to ‘Off’ to configure the system to
operate in the DHW priority mode.
4.3.2
Simultaneous DHW and Space Heating Mode
When the system is configured for simultaneous DHW and Space heating mode,
both DHW and space heating will be supplied at the same time. However, when
DHW demand becomes high, the system automatically turns off the space
heating. The system will continue in this mode until it determines that DHW
demand has been reduced.* Please see appendix for water heater performance
specifications.
*The system determines that DHW demand is high and stops supplying the space heating when
the water heater is running at or above 85% of its maximum capacity. The space heating
operation will restart once the DHW demand has been satisfied.
Set the DIP switch (SW) #2 to ‘On’ to configure the system to
operate DHW and space heating mode simultaneously.
