TECH
This function allows for setting up hysteresis of the set temperature.
It is the difference between the output temperature in the support cycle,
and the temperature needed for return to the cycle of work (e.g. when
set temperature equals 60 C, and hysteresis equals 3 C, the boiler will
enter the cycle of support after reaching temperature of 60 C, whereas it
will return to the cycle of work when the temparture drops to 57 C).
II.h) Fan Speed
This function steers the speed of work of the fan. It can be regulated
between speed 1 nad speed 6 (it can be said that these are the fan’s
gears). The higher the gear the faster the fan works. Gear 1 is fan’s
minimum speed and gear 6 is fan’s maximum speed.
Changes between gears can be introduced by pressing buttons
PLUS
or
MINUS
. The fan always starts working with the maximum speed –
thanks to this set up it is possible to turn the fan on even when the
engine is dusted.
II.i) Activation of CHW Pump – Boiler’s priority
Activation of CHW pump (by pressing button ON), will make
regulator work in the process called Boiler’s priority. In this process CHW
pump (boiler’s pump) is on until it reaches the set temperature, then it is
automatically turned off and the CH pump is activated.
- 9 -
03
Fan Speed
Hysteresis
Fan Speed
62
o
c 72
o
c
CH Set Temp
CHW Hysteresis
Hysteresis
02
o
C
Hysteresis
Summary of Contents for ST-77
Page 1: ...ST 77 Manual Guide...
Page 20: ...Notes...