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
38
of
134
5.3 INITIAL START-UP
In order to prevent a possible over-temperature condition during initial start-up, AERCO
recommends that the following steps be performed in the order specified:
INITIAL START-UP Instructions
1. With the ECS/SP Control Box door open, set the POWER switch on the right side of the
box to the ON position. This will provide power to the complete ECS and MXG-461 Control
Valve. When power is initially applied, the ECS/SP Temperature Controller automatically
performs a self-test sequence for approximately three seconds. Proceed immediately to
the next step.
2. Upon completion of the self-test, the Temperature Controller will show the present water
heater outlet temperature in the upper display and the setpoint temperature in the lower
display.
3. Press the AUTO/MAN button on the front panel of the Temperature Controller (Figure 4-5)
and toggle the display to the MAN (Manual) mode. The MAN indicator will light when the
Manual mode is selected.
4. 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 MXG-461 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.
5. Open the stop valve in the building recirculation system, if employed.
6. Open the isolation valve in the hot water outlet line. Connect a hose to the field-piped
“Hose Connection” (see Piping Diagrams in Appendix C) or open several hot water fixtures
in the building to ensure water flow through the heater.
7. Slowly open the isolation valves in the boiler water inlet and boiler water outlet connections
of the heater.
8.
Using the ▲ arrow button, set the MXG-461 Control Valve to the 10% position and monitor
the outlet water temperature of the heater.
9.
Next, continue to increase the valve “open” position in 5% increments until the water
temperature starts to increase at a moderate rate.
10. 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 the AUTO mode.
The AUTO indicator will light and the MAN indicator will go off. When in the 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.
11. When in the AUTO mode, the ECS will stabilize at the selected setpoint temperature (see
Chapter 3). Once stabilized, the ECS/SP is set for unattended operation with no further
operator intervention.
12. Check the boiler water differential pressure gauge (Figure 1-1) to ensure that the indicator
dial is in the green area. If the dial moves to the red or yellow area, refer to Chapter 8
Corrective Maintenance
.
13. Close the hose connection or hot water fixtures opened in step 6.
14. During start-up of Double-Wall models, there may be some evidence of leakage prior to the
plates and gaskets reaching their working temperature. If leakage continues, check to
ensure that dimension "A" in Figure 5-1 is correct within ±1% of the value shown on the
channel plate assembly instructions. (Refer to Chapter 8, section 8.7.1 for details).
