800 826 5537 03/24/2017
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How an electronic Heater Works:
We have four lines of heaters; electromechanical (C series) and electronic (CE series), electronic (CES), and CERO series.
They all heat the fluid as it passes through but they are controlled in different manners depending on the customer’s
needs. This manual is specifically for the CE, CES, or CERO series units…..3 , 6 , 12 element or 24 element units for the CE and
CES series and 3,6,and 12 for the CERO units.
CE, CES, and CERO models: These models use a computer board to control the heating process. They need three pieces of
information to determine how much heat is necessary.
1. Water flow- This is determined by the flow meter and the information sent to the board. When the water tap opens,
the cold water entering the heater passes through the Flow Meter and the Flow Meter calculates how much water is
passing through the heater and it sends the signal to the Control Board once a second.
2. Inbound fluid temperature- A thermistor reads the inbound temperature of the water and sends a signal to the
Control Board.
3. Desired output temperature. The customer provides this information and can adjust the level using the rocker switch
at the left side of the unit for the 12 kw,15 kw, 18 kw, 36 kw, 48 kw, 54 kw, and 72 kw units and using either the
buttons on the board or the rocker switch on the right side for the 108 KW, 120 KW, or the 144 KW units.
4. On the CE and CERO series the acceptable temperature range the computer board will accept is 60-185 F and on the
CES series the output temperature is limited to 90 F.
5. The thermostats that shut down heating on the CE and CERO units are 200 F and on the CES series this mechanical
over temperature protection is at 90 F.
The Control Board takes the information given by the Flow Meter, the thermistor, and the customer and calculates every
second how many BTUs it needs to apply to the water to achieve the desired temperature and turns on the appropriate
number of elements.
Each time the unit turns on the series in which the elements turn on changes to balance out the element usage and to increase
the element life. This function is called dynamic load balancing.
The CERO units use special elements with titanium sheathing so be sure to order the correct part if you have a CERO model.
