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Evo315-C Manual
Page 18
8.3 Use of the P&T Valve
The P&T valve is used to prevent the temperature or pressure becoming too high inside the tank. When
the temperature or pressure reaches the set value, the valve will open automatically to force the pressure
or temperature to decrease
The handle of the safety valve should be tested once every six months to remove the calcium carbonate deposits and
guarantee there is no blockage in the device. Take care to avoid burns as the temperature of the discharging water is
very high.
Vent pipes should be thermally insulated to prevent safety risks caused by freezing pipes in winter.
P&T valve: Model: PTR-20, action temperature:
99˚C, action pressure:0.85MPa
WARNING:
Failing to operate the relief valve easing gear at least once every six months may result in
the water heater exploding. Continuous leakage of water from the valve may indicate a problem with the
water heater.
8.4 Using the Overheating Protector
The overheating protector is used to turn the power off in an emergency
or with power supply issues, preventing the water from being heated too
high.
A thermal cut-out could indicate a possibly dangerous situation. Do not
reset the thermal cutout until the unit has been serviced by a qualified
technician. Contact EvoHeat for a service if this occurs before
attempting to reset.
To return the unit to its normal operation status by resetting manually:
a) To access the overheat protector, remove the front dark grey
controller panel.
b) Remove the 3 screws on the front panel and push the front
cover upwards.
c)
Remove the remaining screws which cover the overheat
protector panel.
Remove the screws and open the cover
Press the red button to reset
8.5 Draining the Water Tank
1. Close the cold-water inlet valve into the Evo315-C.
2. Open a hot water tap inside the premises.
3. Undo the drain plug on the base of the unit to drain
the water from the system.
8.6 Earthing Methodology
The water from the hot water tap and the drain plug
will be hot. Be careful of burns and scalds. Wear
protective clothing.
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