3
Technical Description of IR 12 Heating Controller
IR 12 Heating Controller (ver. IR12_KRB) is a heating system controller. The controller can
handle up to 2 heating zones (one with a mixing valve, one unmixed with a return mixing
valve OR two mixed zones with no return mixing valve), DHW heating, DHW and space
heating by a fireplace, and a solar thermal system with 1-3 solar storage tanks. The
controller can be upgraded with an OpenTherm communication module and module for third
solar storage tank, universal output and two universal inputs for temperature sensors.
IR 12 Heating Controller is controlled by 6 keys. Information is shown on a 4-line display. The
Controller features 13 inputs for temperatures measured (by Pt 1000 temperature sensors)
and one input for Ripple control signal. Further it features 10 relay outputs (250V 3A) and two
triac outputs (250V 1A).
The Controller is fitted with an Ethernet interface enabling connection to a tablet, PC or from
a mobile phone. Servicing, firmware upgrade or elementary visualization of the concerned
heating system can be performed via this interface. The Controller also features an RS 232
communication interface. A gas boiler can be controlled from an OT (OpenTherm) module.
1. How to operate IR 12 Controller
The controller is operated using 6 keys
,
,
,
,
C
,
OK
on its front panel.
The
DISP
key switches
between User and Service display.
Note: The Service display is intended to show info on the Controller itself and therefore it is
not needed during common operation.
