Sime FORMAT SYSTEM 25 HE Installation And Servicing Instructions page 13

2.8.3 Wiring diagram
NOTE:
– The room thermostat may be connected to the terminals L-1 of the "TA" connector after having removed the link.
– To remote control the boiler connect an external clock to the terminals 1-2 (24 V) of the "J4" connector and set
the built-in clock to "constant" mode (see user instructions for details).
JUMPERS POSITION AND FEATURES
JUMPER
JP1 - DELAY CANCELLATION*
JP2 - DIVERTOR VALVE/D.H.W. PUMP
*
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 turning 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.
2.9 TIME PROGRAMMER (optional)
The control panel is designed to allocate a timer-programmer, code
8092214 (digital time clock 1 channe) or code 8092213 (mechani-
cal 24 Hour time clock), 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. 13/a).
90° LIMIT
THERMOSTAT
J13
J10 J4
J9
J6 J5
POSITION AND FEATURE
CLOSED
Ignition delay cancelled
Use with div. valve
OPTIONAL
RELAY
95° SMOKE
STAT
J8
100° SAFETY
STAT
J7
J3
SUPPLY POSITION
OPEN
Ignition delay operating
Use with boiler pump
Open
Closed
Fig. 13
Fig. 13/a
13