TECH
Room regulator can be adjusted to the regulator ST-77. Then it has
a higher priority. The feeder and the fan work until the temperature set
on the room regulator is reached. However, the work of the boiler is
limited by the temperature set on the regulator installed on the boiler.
II.k) Alarm
To set up the activation time for the alarm of temperature use
buttons
PLUS
/
MINUS
. To save the set time press button
MENU
. This
function is activated only in the cycle of
work
(i.e. when the temparuter
of the boiler is lower than the set temperature. If the temperature of the
boiler does not increase in the time set by the user, alarm is activated:
the feeder and the fan are automatically turned off, (water pump is
turned on/off independenty), and the sound signalling is turned on. The
screen projects an adequate message (see chapter Safety Protection).
II.l) Function of the constant CH pump
Activating this function of the regulator starts parallel work of the
pumps above the set temperature (see sub-chapter: Temperature of
turning CH and CHW pumps on): CH pump works all the time and the
CHW pump is turned off after reaching the set on the boiler temperature.
Caution!
It is important to install a three-way valve or another mixing
valve that would keep different temperature in the boiler from the one in
the house.
- 11 -
off
on
01
gdz 10 min
ALARM
62
o
c 72
o
c
CH Set Temp
Room Regulator
ALARM
Summary of Contents for ST-77
Page 1: ...ST 77 Manual Guide...
Page 20: ...Notes...