7
♦
Choice of regulation and control elements
The boiler is equipped with basic regulation and safety elements, as follows from the following
wiring diagrams. As further expansion, it is possible to use regulation according to the temperature in the
selected reference room or the weather-compensated regulation of the heating water, or a combined
regulation.
A wide range of thermostats is available at the manufacturer for the room temperature control, e.g.
SIEMENS REV 23, Honeywell CM 707, CM 67 or Electrobock PT 21, PT 30 and others. For the weather
compensated regulation Thermona offers the outside sensor THERM Q01.
There is also a high quality regulation element – intelligent programmable SIEMENS QAA 73.110,
which communicates with the boiler’s automatics microprocessor through IU02Q interface. In this way
not only information about the required heating system temperature depending on the room and outside
temperature is transmitted but also the information about the boiler’operation is displayed (mode, output,
temperatures, malfunctions, possible DHW tank heating switch off etc.). This system includes a lot of
adjustable and displayed parameters for optimal control of the heating system with boiler output
modulation.
Boiler rooms with cascades can be controlled with our unique system of communication among
individual boilers. For this purpose there is interface IU 04.10, which transports the output needs of the
boiler room calculations and information between the boilers (it influences the number of working boilers
and their outputs). For even better communication interface IU 05Q can be used for the controlling boiler.
This interface includes the features of IU 04.10 interface (communication among boilers) and features of
IU 02Q interface (communication with programmable QAA 73.110). This kind of communication offers
more programmable options and it displays the operational modes of the boiler room (modes, output,
temperatures, failures, communication failures, possible DHW tank heating switch off during night etc.).
Recommendation:
We recommend controlling the actual boiler operation (without weather-
compensated regulation) at least by a basic room thermostat. The room temperature is constant and it
keeps the boiler in longer operational modes. It is also recommended to set the boiler thermostat to 60 ºC
in autumn and spring and to 80 ºC in winter. It is advisable to use the inbuilt weather-compensated
regulation either separately or with a room thermostat (see lower).
These expansion regulation types are not delivered with the boiler.
♦
Starting the boiler
Only a service technician certified by the manufacturer can start the boiler for the first time.
Before the first ignition it is necessary to carry out the following steps:
make sure the heating system is filled with water and the boiler is deaerated
make sure all valves are open
open gas tap and check the gas installation for leaks.
The procedure for first ignition:
set the output temperature knob to maximum
plug the supply in and switch on the boiler by the mode switch
when you shortly turn the mode switch to the failure unblocking mode the boiler ignites automatically
(if the gas supply is deaerated properly)
check if all the safety thermostats and control elements work correctly
check the setting of the boiler output range, adjust the setting according to the needs of the heated
building if necessary
Important:
The boiler output range setting and other parameters must follow technical specifications.
In case of
overloading or improper use may result in damaging the boiler. Components damaged in such a way
are not included in the guarantee!
