ELECTRIC INSTANTANEOUS WATER HEATER
PPE1, PPE2, PPVE
18
6.3 | DEVICE FUNKTION PPE
The heater switches on automatically straight after reaching the flow rate over 2,5l/min. The temperature control system adjusts the power rate
according to the water flow rate, required temperature and the water temperature in the mains.
There are two indicators on the case:
- green - power supply „on”
- red - heating „on”
Other modes are shown by flickering green light.
Number of impulses
(green indicator)
Description
1
The unit was switched off because the temperature has exceeded the maximum
value (fault signal will not disappear until the appropriate rate of water flow is
reached).
2
The unit was switched off by a master appliance.
3
The inlet temperature sensor failure.
4
The unit was switched off because the air bubbles in the heating box (the unit will
not heat again until the fault is resolved and the appropriate rate of water flow is
reached).
7. | MAINTENANCE
Filter cleaning:
1.
Cut off power and cold water supplies.
2.
Take off the unit’s cover.
3.
Undo the inlet fitting - on the cold water side.
4.
Take the filter out from the inlet fitting.
5.
Clean up the filter.
6.
Fix the filter back, put the gasket and do up the
inlet fitting.
7.
Open the cut-off valve on cold water supply pipe
- check connections for leaks.
8.
Fix the unit’s cover back.
9.
Vent the water system - see Venting section.
Co-operation with other appliances
Unit is equipped with the BLOK and NA clamps.
BLOK
- relay input that switches off the slave appliance, the circuit that is connected to the BLOK clamps (max. 0,1A 250V-) will be opened at
the time of heating operation starts up.
NA
- input that locks the unit operation, opened NA contacts locks the heating operation - co-operation with the master appliance.
Wire (2 x 0,5mm2) for BLOCK and NA clamps should be run inside the unit on the right side. The wire connections must be performed by a
qualified person.
