Exhaust
Type
C12 (xx)
C32 (xx)
C42 (xx)
Restrictor
ø 44 mm
L min = 0.5 m
L max = 1 m
Maximum
Extension
Exhaust/Air
L = 5 m
Risk of Condensation Forming
Coaxial
Systems
ø 60/100
Piping not insulated
ø 44 restrictor NO restrictor
NONE NONE
Piping insulated
ø 44 restrictor NO restrictor
NONE NONE
TABLE 2.1
10 RFFI
To connect a room thermostat and/or time clock, it is necessary
to:
1.- Open the control panel as indicated in section 4.3;
2.- Remove screws “A”and remove the inspection cover from
the reverse of the control panel;
3.- For the room-thermostat connect the thermostat switching
wires to the position 5 and 6 and remove the wire link (for
three-wire thermostats connect the neutral to terminal N);
4.- For the time clock connect the clock switching wires to the
positions 3 and 4 and connect the clock motor electrical
supply to the terminals marked Land N.
Note: A frost thermostat is built-in to the appliance.
For connection to control systems with zone valves
for hot water cylinders see section 3.
2.10 ROOMTHERMOSTAT
CONNECTION
A
9
IMPORTANT!
For all flue systems,a restrictor must
always be inserted into the boiler’s
flue connector; the restrictor must be
Ø 44 in diameter depending on the
length of piping indicated in TABLE
2.1.
FIG 2.9 and FIG 2.10 illustrate some of
the various designs for coaxial or twin
pipe flue systems.
For further information on
discharge/ventilation accessories, see
the FLUE PIPE ACCESSORIESMANUAL.
COAXIAL SYSTEMS
FIG. 2.9