KYRA D 30 UNIT COND
A73022680
34
EN
Circulating pump adjustment without a connection to an external hot water
storage tank
The factory setting is suitable for all installations; however a different opera-
tion strategycan be set, depending on the characteristics of the system.
Setting Dp-v
Proportional head
Setting
Fixed speed
fi
g.18
fi
g.19
- Setting Dp-v Proportional head (
fi
g.18)
The circulating pump head will be automatically reduced with the decrease in fl ow
raterequired by the system. This setting is optimum for systems with radiators (2
pipes or single pipe) and/or thermostatic valves.
The strong points are the reduction in power consumption with the decrease in
systemdemand and reduction of noise in radiators and/or thermostatic valves. The
operatingrange is from min. (1) to max. (7).
- Setting Fixed speed (
fi
g.19)
The circulating pump does not modulate its power. The operating principle is that
of conventional 3-speed circulating pumps (with a reduction in power consumption
comparedto them). The operating range goes from speed 1 (I) to speed 3 (III).
Water system characteristics
In the presence of water harder than 25° Fr (1°F = 10ppm CaCO3), use suitably
treatedwater in order to avoid possible scaling in the boiler. Treatment must not re-
duce the hardness to values below 15°F (Decree 236/88 for uses of water intended
for human con-sumption). Treatment of the water used is indispensable in case of
very large systemsor with frequent introduction of replenishing water in the system.
Antifreeze system, antifreeze
fl
uids, additives and inhibitors
The boiler is equipped with an antifreeze system that turns on the boiler in heating
modewhen the system delivery water temperature falls under 6°C. The device will
not comeon if the electricity and/or gas supply to the unit are cut off. If it becomes
necessary, it ispermissible to use antifreeze fl uid, additives and inhibitors only if the
manufacturer ofthese fl uids or additives guarantees they are suitable for this use
and cause no damageto the heat exchanger or other components and/or materials
of the boiler unit and system. It is prohibited to use generic antifreeze fl uid, additives
or inhibitors that are not expressly suited for use in heating systems and compatible
with the materials of the boilerunit and system.
Connection to a storage tank for domestic hot water production
The electronic card of the boiler can manage an external storage tank for the pro-
duction of domestic hot water. Carry out the hydraulic connections according to
the diagram fi g.20 (pumps and check valves are supplied separately). The elec-
trical connections must be made as indicated in the electrical diagram in chapter
5.4. It is necessary to use a LAMBORGHINI probe. When the boiler is switched
on, the control system recognizes the accumulator probe and is automatically
confi gured, activating the screen and the controls for the domestic water function.
g
g
fi
g.20 – Diagram of connection to external hot water tank
Key
8
Domestic hot water outlet
9
Domestic cold water inlet
10
System
delivery
11
System
return
42
DHW temperature sensor (optional)
95
3-way valve - 2 wires with spring return (not provided)
Con
fi
guration for use with DHW accumulator:
1. Press the ON button for two seconds to turn on the display.
2. To enter the Service menu, press the reset key for at least 10 seconds until the
acronym TS appears in the lower half-moon of heating..
3.
Press the reset key once (a parameter “P” will appear) and then the heating “+”
and “-” keys to select parameter P02.
4. Select the value 06 with the “+” and “-” upper keys of ACS. This value will be
saved automatically.
5. To return to the Service (TS) menu, press the reset button once.
6. To exit the Service menu, press the reset key for at least 10 sec..
3.4 Burner connection
The burner is equipped with fl exible pipes and a fi lter for connection to the oil feed
line.Run the fl exible pipes out of the back and install the fi lter as indicated in fi g.20..
fi
g.21 – Instalación del
fi
ltro del combustible
El circuito de alimentación del gasóleo debe realizarse según uno de los siguientes
esquemas, sin superar las longitudes (LMAX) de las tuberías que se indican en la
tabla.
fi
g.22 – Suction feed
fi
g.23 – Siphon feed
Summary of Contents for KYRA D 30 UNIT COND
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