DOMUSA Jaka HFD, Инструкция по установке и эксплуатации

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Jaka HFD / HFS
6
8 FUNCTIONING
Turn the control thermostat
(2)
and the room thermostat (if the boiler has one) to the desired
temperature. Turn the master switch
(6)
to
"I"
and the summer/winter switch to winter position "

".
The burner and the pump will start up and run until the installation reaches the temperature pre-set
on the control thermostat
(2)
(or on the room thermostat, if the boiler has one). When the installation
temperature drops, the burner will start up again and perform the heating cycle.
8.1 Functioning with a Sanit storage heater
The Jaka HFS boiler may be installed together with a storage heater from the DOMUSA TEKNIK
Sanit range, to obtain domestic hot water. To correctly install this element, carefully follow the
assembly and connection instructions enclosed with the storage heater.
The boiler is equipped with a summer position/winter position selector switch. This switch can be
used to choose between:
- Summer position
☼
: in this position the boiler will only produce hot water as needed. The
burner and the storage heater feed pump (summer pump) will be switched on until the hot
water stored reaches the temperature set on the storage heater hot water thermostat. When
this temperature is reached, the burner and the summer pump will switch off.
-
Winter position

:
in this position the boiler will produce hot water as needed and will also
provide heating, giving priority to hot water production.
9 TIMER-BASED OPERATION (OPTIONAL)
The JAKA HFS boiler can optionally be supplied with a timer, to be mounted on the main board. Both
the boiler and timer are equipped with an easy installation system, consisting of a 12-pole connector
(X12)
, as shown in the electrical diagram. Proceed as indicated in the assembly and operation
instructions provided with the timer.
10 CONTROL UNIT-BASED OPERATION (OPTIONAL)
The JAKA HFS boiler may be supplied with an optional Control Unit (E24 BVS) .
Various sensors may be incorporated to this control unit, enabling it to regulate two independent
heating zones: a circuit with a mixing valve (e.g. underfloor heating), and a direct circuit (e.g.
radiators). The installation can thus be adjusted to suit the needs of a particular home by measuring
the outside temperature and the room temperature inside the house in each of the two heating zones.
The control unit can also adjust the hot water production of a storage heater connected to the boiler,
giving priority to the hot water production.
Both the boiler and the control unit are provided with an quick installation system, consisting of a 12-
pole connector
(X12)
, as shown in the Electrical Diagram. Proceed as indicated in the assembly and
operation instructions enclosed with the control unit.
11 STOPPING THE BOILER
To stop the boiler, simply turn the master switch
(6)
to "O" .