SmartPlate Installation, Operation & Maintenance Manual
CHAPTER 1 – GENERAL INFORMATION
Figure 1-1. Typical SmartPlate Packaged Water Heater – Single Wall Shown
1.2 ELECTRONIC CONTROL SYSTEM/SMARTPLATE (ECS/SP)
Identical Electronic Control Systems are used on all SmartPlate models. This system,
commonly referred to as the ECS/SP, contains a Control Box Assembly which includes all of the
electronic circuitry for the ECS/SP. In addition, the ECS/SP includes several sensors and safety
devices which provide temperature and flow control information to the Control Box circuitry. The
Control Box and the additional devices included in the ECS are shown in Figure 1-2. The
additional devices included in the ECS/SP include:
• Feed-Forward (Mixed Water) Temperature Sensor (Type J Thermocouple)
• DHW Outlet Dual Temperature Sensors (Type J Thermocouples)
• Boiler Water Inlet/Outlet Temperature Sensors (Type J Thermocouples)
• Over-Temperature Alarm (With Safety Shutdown)
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