Unical DUA plus, Инструкция по установке и эксплуатации пользователя

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27
Service info
A = Mode selector: Heating only- H D.H.W.
- Antifrost - D.H.W. only
B = Heating temperature adjusting knob
C = D.H.W.temperature adjusting knob
D = Thermometer
E = Signal lamp of heating temperature scale
F = Signal lamp of D.H.W. temperature scale
G = Power ON signal l
amp (antifrost)
H = Burner in operation signal lamp
I
= Fault indication lampe
L = Burner lockout warning lamp
M = Manual reset button
By acting on the selector the operation mode
is choosen :
CENTRAL HEATING ONLY
With the mode selector in this position the
boiler works for Central Heating only.
CH & DHW
With the mode selector in this position the
boiler works for Central Heating and
Domestic Hot Water production
MODE SELECTOR:
CH ONLY - CH & DHW -
ANTIFROST - DHW ONLY D.H.W. TEMPERATURE
ADJUSTING KNOB
With this knob it is possible to set the
maximum desired temperature in the D.H.W.
circuit.
The setting range of this temperature is
between a minimum of 35°C and a maximum
of 65°C.
By rotating COUNTER-CLOCKWISE this
knob a minimum temperature of 35°C is
reached.
By rotating completely CLOCKWISE this
knob a maximum temperature of 65°C is
reached.
3.1 - PANEL BOARD
3
D.H.W. only
With the mode selector in this position the
boiler works for D.H.W. only.
HEATING TEMPÉRATURE
ADJUSTING KNOB
With this knob it is possible to set the
maximum desired temperature in the heating
circuit.
The setting range of this temperature is
between a minimum of 35°C and a maximum
of 85°C.
By rotating COUNTER-CLOCKWISE this
knob a minimum temperature of 35°C is
reached.
By rotating completely CLOCKWISE this
knob a maximum temperature of 85°C is
reached.
MAX
MAX
ANTIFROST
With the mode selector in this position the
boiler is not in operation: the antifrost
protection on the heating circuit only is
operational.
The antifrost protection system is
operational only if the boiler is feeded
with gas and electrical supply.
N = Special functions button (for service purposes)
O = Special functions signal lampe
(for service purposes)
P = Outer temperature selector (opérational only
if outer temperature sensor is fitted).
fig. 29
D
B
Q
N
O
C E I H L M
P G
F A
®
plus
DUA
MAX
MAX
80° 60°
65°
70° 55°
60° 50°
50° 45°
40° 40°
30° 35°
20°
-20 °C 10 °C
0 °C
-10 °C
MIN - MAX
USER'S INSTRUCTIONS