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WARNING
The domestic water thermostat on the Maui is not intended to serve as a scald protection device.
Under certain conditions, it is possible for the DHW temperature to climb signifi cantly above the
DHW Thermostat set point. Like all domestic water heaters, the MWC is capable of generating
water that is hot enough to cause injury or death due to scalding. To minimize the risk of scalding:
Set domestic hot water (DHW) thermostat as low as possible (see the Start-up Section of this •
manual for the location of this thermostat.
Feel water before showering or bathing.•
If anti-scald or anti-chill protection is required, use devices specifi cally designed for such •
service. Install and maintain these devices in accordance with the manufacturer’s instructions.
Figure 13.2: Heating System Knob
Summer Operation
Off
Target Supply Temp = 100F
Target Supply Temp = 178F
Figure 13.3: Domestic Hot Water (DHW) Thermostat
95F Target DHW Temp
131F Target DHW Temp
NOTE
Since a room thermostat will almost always be used to initiate a call for heat (either directly or
through zone controls), it is generally recommended that the Heating System Knob be left at
the appropriate Target Supply Temperature year round.