SmartPlate EV Installation, Operation and Maintenance Manual
CHAPTER 5
– OPERATION
OMM-0147_C
• SP-102 • 3/2/2021 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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PRE-OPERATION CHECKS AND INITIAL START-UP Instructions
7. When in the Manual mode, the upper display will continue to show the current outlet water
temperature of the heater. The lower display will show the position of the Control Valve
Actuator in %. When the Manual mode is initially selected, the lower display will show 0%,
indicating that the Control Valve is fully closed.
8. Open the stop valve in the building recirculation system, if employed.
9. Open the isolation valve in the hot water outlet line.
10. Connect a hose to the field-
piped “Hose Connection” or open several hot water fixtures in
the building to ensure water flow through the heater.
11. Slowly open the isolation valves in the boiler water inlet and boiler water outlet connections
of the heater.
12.
Using the ▲ arrow button, set the Control Valve to the 10% position and monitor the outlet
water temperature of the heater.
13.
Next, continue to increase the valve “open” position in 5% increments until the water
temperature starts to increase at a moderate rate.
14. When the outlet water temperature has increased to within 20°F of the desired setpoint,
press the AUTO/MAN button and toggle the Temperature Controller to AUTO mode. The
AUTO indicator will light and the MAN indicator will go off. When in AUTO mode the upper
display will continue to show the outlet water temperature of the heater. The lower display
will show the selected setpoint temperature.
15. When in AUTO mode, the ECS II will stabilize at the selected setpoint temperature (see
Chapter 3). Once stabilized, the ECS II is set for unattended operation with no further
operator intervention.
16. Close the hose connection or hot water fixtures opened in step 10.
5.3 SHUTTING DOWN THE SYSTEM
To shut down the Water Heater for a short period of time, simply turn power
OFF
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 is necessary to drain the unit using the steps listed below.
SHUTTING DOWN THE SYSTEM
Instructions
1. Turn the Power switch on the front of the Control Box to
OFF
.
2. Close all four of the Isolation Ball Valves.
3. Connect a drain hose to the Strainer on the Boiler Water side of the piping assembly
(Figure 5.3).
4. Open the valve on the Strainer and drain the boiler water from the unit. It may be
necessary to loosen a Victaulic coupling by the heat exchanger to allow air into the pipe
during draining.
5. Open the Relief Valve to allow air into the pipe during draining.
6. After the boiler water and domestic water have been drained from the unit, close the Relief
Valve and tighten the Victaulic coupling loosened in step 3.
