Operation manual for M RS 420 ESTYMA control unit
20
AIR DURING IGNITION
The amount of air required for ignition is set separately because it differs from
the amount of air during normal operation of the burner.
Air amount during ignition is set using the “bl. ignites” parameter in the
“SERVICE MODE” submenu.
PUMPS
In order to be efficient and last long, the boiler must operate within a certain
temperature range. This is why the circulation pumps should only run when the
temperature exceeds a certain minimum level. The “min. pumps temp.”
parameter is available in the “SERVICE MODE” submenu.
The hot water pump runs only when the temperature of the heating medium in
the boiler is higher than the water temperature in the hot tap water tank. In this
way, losses of energy stored in the heated tap water are prevented.
HOT TAP WATER
Boilers with the M RS 420 control unit are ideal for heating tap water both in the
heating season and in other parts of the year.
HOT TAP WATER TEMPERATURE SETTING
The CTN-02 sensor, supplied with the
unit, should be installed in the hot water
tank.
Set the hot tap water temperature in the
HOT WATER submenu. The temperature
should not be too high in order to
prevent excessive heat losses during
water storage and distribution. The default setting is 45ºC. Figure 13 shows the
HOT WATER submenu.
Figure 13: HOT WATER submenu
