Fig. 20
Fig. 21
7.2 TIME PROGRAMMER (optional)
The control panel is designed to allocate a timer-program-
mer, code 8092208, which can be supplied upon request. To
fit the timer, remove the housing blanking piece from the
control panel and, with the panel open, fit the timer to the
panel using the screws supplied therein (see fig. 21).
Connect the unit as shown in the wiring diagram (fig. 20).
7.3 KIT FOR LOW TEMPERATURE SYSTEM (optional)
This kit (SIME cod. 8089830) consists of the following compo-
nents: thermostat at 50°C, connector and 2 fixing screws.
JUMPERS
NOTE:
– The room thermostat must be
connected to the terminals 10-
11 of the “TA” connector after
having removed the link.
– To remote control the boiler
connect an external clock to the
terminals 10-11 (24 V) of the
“TA” connector and set the
built-in clock to “constant”
mode (see user instructions for
details).
JUMPERS POSITION AND FEATURES
JUMPER POSITION AND FEATURE SUPPLY POSITION
CLOSED OPEN
J7 - METANO/GPL Ready to function with LPG Ready to function with natural gas Open
J8 - ANN. RIT.* Ignition delay cancelled Ignition delay operating Open
* In the heating phase, the electronic board is programmed to include a burner technical delay interval of approx. 3 minutes, which
occurs both at system cold starting and at subsequent re-ignitions. The aim is to overcome the problem of repeated ignitions and tur-
ning off with very short time intervals between. This could occur in particular in systems presenting high head losses. At each restart
after the period of slow ignition, the boiler will set itself for about 1 minute at the minimum modulation pressure, and will then move
to the heating pressure value set.
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