AERCO SmartPlate - Manual (Page 37)

SmartPlate Installation, Operation & Maintenance Manual
CHAPTER 5 – OPERATION
OMM-0069_0E AERCO International, Inc.  100 Oritani Dr.  Blauvelt, NY 10913 Page 37 of 138
SP-100 Phone: 800-526-0288 PRI: 11/26/2013
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:
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
5.4 SHUTTING DOWN THE SYSTEM
To shut down the SmartPlate 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 SmartPlate will 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:
1. Turn OFF the POWER Switch on the side of the ECS/SP Control Box.
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 Heater. It
will be necessary to loosen a Victaulic coupling by the Heat Exchanger to allow air into the
pipe during draining.
4. Next, connect a hose to the Drain Valve on the DHW Side of the piping assembly.
Remove the 1/4” plug on the side of the Strainer to allow air into the pipe during draining.
5. Open the Drain Valve to drain the domestic water from the Heater.