Install Instructions

6 720 647 022 (2014/06) Tronic 5000C
6 | Information about the heater
2.7 Wiring diagram
Fig. 3 Internal wiring schematic for single phase WH36 unit.
2.8 Description of the heater
How the Tronic 5000C Pro works;
• The Tronic 5000C Pro heats water continuously as it flows
through the heater modules.
• The electronic control PCB monitors the flow rate and the
incoming water temperature and switches on the required
number of heater elements to reach the set point
temperature.
• As the flow rate or the incoming water temperature
changes, the electronic control adjusts the number of
heater elements used so that the outlet temperature is
maintained.
• The outlet water temperature can change slightly as the
flow rate changes due to the steps in power as different
heater elements are switched on and off.
• The outlet water temperature can also vary if the maximum
flow rate is exceeded (see Fig. 8) or if the supply voltage
changes.
• Each heater module is protected by an electro-mechanical
thermal cut-out. If the temperature of any of the heater
modules gets too high, then the cut-out will trip and cut the
power to that heater module. If the cut-out trips, it must be
reset while the circuit breakers are off. If you are not
comfortable or qualified to perform this task, consult the
original installer or a licensed electrician. This cut-out will
only trip in exceptional circumstances.
• Depending on the region of the country, the temperature of
the water supply can vary between 40°F in winter to 80°F in
summer, with an average of 58°F. The output temperature
at maximum flow of the heater is dependent on inlet water
temperature.
DANGER: Risk of electric shock!
▶ Always switch off the electricity supply to the unit before any
intervention in the heater.