Accorroni HUB RADIATOR MINI 11.0, Руководство по установке

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9. HUB RADIATOR MINI XL CIRCULATOR
the electronic circulator supplied as standard HUB RADIATOR
MINI XL can power:
- the underfloor heating system;
- the wall heating system;
- the radiator system;
- the heating-only fan coil system.
In some cases HUB RADIATOR MINI XL can be connected
simultaneously to two or more types of systems.
The power supply of the circulator has already been carried
out by our technicians during the assembly phase and allows
the circulator to work both when the room thermostat requires
heat and when the flow switch indicates that a domestic hot
water withdrawal is in progress.
In the case of a radiant floor system, the circulator will be
controlled by the room thermostat and the water delivery
temperature is regulated by a three-way mixing valve at a fixed
point and the value can be modified to adapt it to the system
design value. This valve must be purchased separately as an
accessory.
A safety thermostat must be installed on the delivery pipe that
blocks the operation of the pump, if the delivery temperature,
for some reason, exceeds the threshold value, in order to
avoid overheating of the floor and its excessive expansion.
The characteristics of the circulator are shown on page. 18,
which shows the useful head of the system as a function of
the water flow and the thermal power of the heating system.
A water flow rate is normally considered such as to obtain a
temperature delta between delivery and return of 10 ° C in
nominal conditions.
10. DIVERTER VALVE HUB RADIATOR MINI XL
All the products of the HUB RADIATOR MINI XL series are
equipped with a motorized diverter valve with spring return.
The diverter valve is powered and automatically diverts to the
system when the temperature of the technical storage exceeds
47 ° C (parameter AR21), vice versa below this temperature the
system remains in sanitary priority, inhibiting the operation of
the circulator even in conjunction with the consent of the room
thermostat.
11. ELECTRIC RESISTANCE HUB RADIATOR MINI XL
All the products of the HUB RADIATOR MINI series are
equipped with a 1500W single-phase electrical resistance.
This resistor can be used both to replace the heat pump and
to supplement it.
the type of operation can be selected using the buttons on the
control plate of the external cover cabinet.
A) Heat pump only operation (fig. 11)
The key on the left of the figure must be in the OFF position
“key 0”, in this way the electric resistance will never work
B) Resistance heat pump operation (fig. 11)
To use the integration resistance just press the left button in the
ON position “button I” and the right one in the INTEGRATION
position “button II”.
In this way, the control unit will decide when the help of the
resistor is needed, which will work in conjunction with the heat
pump.
Resistance only operation (fig. 11)
To use only the resistance to replace the heat pump, just press
the left button in the ON position “button I” and the right one in
the EMERGENCY position “button I”.
Fig. 11
12. WARNINGS
12.1 QUALIFICATION OF THE INSTALLER
ATTENTION! It is foreseen by the legislation in force on the
matter (law 5 March 1990 n.46 and related Implementation
Regulations) that the installation is carried out by an
authorized company able to ensure, in addition to the
correct implementation of the system, also the necessary
checks before commissioning.