SmartPlate Installation, Operation & Maintenance Manual
CHAPTER 5 – OPERATION
OMM-0069_0H • SP-100 • 1/30/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 39 of 134
5.4 CHECKING MIXED INLET TEMPERATURE
If desired, the water heater mixed inlet temperature can be monitored using the controls and
displays on the Temperature Controller. This is accomplished as follows:
CHECKING MIXED INLET TEMPERATURE Instructions
1. Press the Page ( ) button and select iP.
2. Next, press the Scroll ( ) button and scroll to Li.2.
3. When Li.2 is shown in the upper display, the lower display will show the water heater
mixed inlet temperature. The temperature will be displayed for several seconds and then
the Controller will revert to the default displays (outlet water temperature and setpoint).
Figure 5-1. Double-Wall Heat Exchanger Only
5.5 SHUTTING DOWN THE SYSTEM
To shut down the Water Heater for a short period of time, simply turn OFF power and close the
isolation valves as described in steps 1 and 2 below. However, if the unit will be shut down for
an extended period of time, it will be necessary to drain the unit using the appropriate steps
listed below for the type of heat exchanger used (single-wall or double-wall). Proceed as
follows:
SHUTTING DOWN THE SYSTEM Instructions
1. Turn the POWER switch on the side of the ECS/SP Control Box to OFF.
2. Close all four of the Isolation Ball Valves (Figure 8-1).
3. Connect a drain hose to the Strainer on the Boiler Water side of the piping assembly
(Figure 5-2). Open the valve on the Strainer and drain the boiler water from the unit. It will
be necessary to loosen a Victaulic coupling by the heat exchanger to allow air into the pipe
during draining.
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