20
INSTALLATION and OPERATION MANUAL
INSTALLATION and OPERATION MANUAL
INSTALLATION and OPERATION MANUAL
INSTALLATION and OPERATION MANUAL
DHW
, the burner will fire up.
In “
CH + DHW
” mode when
DHW
(Domestic hot water)
requirement is
fullfilled and there is a signal from room
termostat, the burner burns 5 min at max
power, followed by transfer to power
level 2. After 5 min burner transfers to
power level 1 and after 5 min transfers
to Suspend mode. Hen there is no
signal from room termostat or there is
non-fullfilled requirement for
DHW
, the
burner will fire up.
When room termostat is activated,
CH
pump
stops in both modes
(CH Only,
CH+DHW)
. In
CH+DHW
mode when
there is a signal from room termostat, C
H
pump
turns off. The burner countinues
to burn until
DHW (Domestic hot water)
requiremend is fullfilled.
In "
Summer Mode
" room thermostat is
not active.
Lights for operating:
-
Pump heating system
.
-
Pump Domestic hot water
.
9.2. User`s menu
9.2.1. Initial (start-up screen) "Standby"
For access to user settings menu press
and hold functional key
F
for
3-4
seconds.
Use
UP
and
DOWN
arrow keys in
CH
Setup
menu to
select desired
temperature of
engagement of circulation pump.
From this menu
you can preset
buffer
tank
circulation pump
switch-on and
switch-off temperatures provided such
heating installation scheme (with buffer
tank included) is selected, whereas the
two sensors reading these temperatures
are mounted in the upper, respectively
lower part of the buffer tank (cf. boiler
connection schemes). Use button
F
to
navigate to the next menu.
In
DHW Setup
menu
–
set
domestic hot water
(
DHW
)
pump
switch
on/off
temperature. Use
UP
and
DOWN
arrow
keys to select desired temperature in
“
Set Temp _ _°
” and hysteresis in
“
Hysteresis _ _°
”. Upon reaching the
preset temperature of water in boiler the
DHW pump will engage. It will stop when
water inside the
DHW
storage tank
reaches the preset temperature.
Example:
On
Set Temp
75°C
and
Hysteresis 05°C
when water inside the
boiler heats up to
70°C
the pump will
start. When water temperature inside
the
DHW
storage tank reaches
75°C
the pump will stop. It will restart once
the water temperature inside the DHW
tank drops by
5°C.
In this way the water
temperature inside the DHW tank will be
kept at a hysteresis of
5°C
, i.e. the water
temperature will be between
70°C
and
75°C
.
