18
19
1.
Ignition indicator,
2.
Fan operation indicator,
3.
Manual fan activation
indicator,
4.
Fan power percentage
value indicator,
5.
AUTO function indicator,
6.
Counting of operation time
of the fan and the duration
of the interval between the
blow-throughs. "EE"
signaling, hysteresis setting;
fan power and start time
setting,
7.
Symbols indicating the fan operation settings (ON) and the interval
between the blow-throughs (OFF),
8.
Temperature setting above which the fan will be switched on and off
periodically (according to the settings),
9.
STOP HI function indicator,
10.
STOP LO function indicator,
11.
Set time unit (S - second, MIN - minute).
5.4.5. Switching on the emergency heat takeoff function
NOTE:
As a default setting, the emergency heat takeoff function is switched off.
Be very careful when using this function. The maximum temperature of
water in the tank is 85 °C, which may lead to the risk of scalding of
people, in particular small children!
Press the "
C
" button under the temperature setting. The digits begin to
blink and indicate the value of the current temperature setting. Display
the hysteresis setting (
HI
) by pressing the "
C
" button again. Then press
the "
C
" button again to display the HDW pump operation indicator ( ).
When the "
C
" button is pressed once again (this enables switching the
emergency heat takeoff function on or off), lines are displayed (and blink)
in the "
A
" section and in the "
C
" section (the function is off). When the
lines are displayed, changes can be made using the "+" or the "-" button.
After the function is switched on, section "
A
" displays the value of 85°C,
which means that above this temperature value (measured by the
SR1
sensor), the CH pump will be started (in the "
A
" section). On the other
hand, section "
C
" (setting value) displays the value of 85°C, which means
that the tank will collect heat but only to the value of 85°C (
SR3
). Also, the
forced operation indicator (the CH pump is switched on) is displayed.
After the value is set, approve it (within 10 seconds) by pressing the
"
OK
" button. Otherwise, the changed setting will not be saved and the
controller will return to the previous setting.
The emergency heat takeoff function is used in situations where the
temperature in the system increases to dangerous levels above 85°C and
enables quick takeoff of the heat by the heating system. In such
situations, the HDW tank is used as a heat buffer. Also, the CH pump in the
"
A
" section is used.
NOTE: The emergency heat takeoff function uses the CH pump in the
"
A
"
section only when the forced pump operation mode ( ) is switched
on in the
"
A
"
section.
5.5. Wiring diagram
5.5.1. HDW circuit
HDW
tank
Pump
power supply
230V mains
Temperature sensor
(fix with a band)
HW CW
0
I
A
B
C
D
SR1 SR2 SR3
OUT1
OUT2
OUT3
OUT4
OUT5
IN
5.5.2. With the HDW tank
Pump
HDW sensor
HDW
tank
0
I
A
B
C
D
SR1 SR2 SR3
OUT1
OUT2
OUT3
OUT4
OUT5
IN
NOTE: When only the SR3 sensor is connected, the remaining functions
of the controller are inactive, i.e. there is no indication of operation of
CH pump (SR1) and of the control of the CH pump and the tee valve in
the fireplace circuit, and the blower is not controlled.
Gas
boiler
Use of a fan
(part D of the display)
6
D
3 4
6
8
ON
OFF
S MIN
STOP LO
STOP HI
AUTO
%
1 2
7
9
10
5
11
power supply
230V mains
