Nilfisk-Advance 107146895, Service Manual, Page: 42 / 101

42
SM_MH 3M_4M Ver.1.2_May 2016
Function
D
If the machine and the power supply are working correctly the following will happend during start up.
Continued from previous page……….
The water temperature will now rise until the thermostat setpoint has been reached. The
combustion stops, when the actual temp. value exceeds the setpoint. The fan will keep ven-
tilating for approx.. 2 sec. before it will stop. When heat again is required the above cycle
will be repeated.
In front of the electrical box you will find the adjustment for the anti-scale. When the adjust-
ment is set to 0 no AntiStone will be added into the water break tank and the “low level” indi-
cator will be ignored.
Once the adjustment is set between ½ and 4 the dosage will be according the user manual.
Low level indicator is active in this setting area.
The detergent valve makes it possible to add detergent to the pump suction side. Turn the
handle to open and close for detergent. Some models have only a detegent valve for one
type detergent, and other have for two types of detergent.
With the valve in off position as shown it draws in water from the water break tank to
clean the valve and the hose to the pump.
Connected to water tank
Suction from pump
Detergent Thermostat
ON/OFF switch
Cold water mode
Hot water mode
Detergent dosing valve
MH 3M
ECO—mode:
EcoMode for low fuel con ‐
sump on hea ng stage at
60°C.