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OPTIMAX HE 18 OV
Optimax "Y" Plan
Pipe layout
*Note: cold feed and expansion
6
Remove
Link
between
Terminal 5 - SWITCH LINE
terminals 5-6
PROGRAMMER
NEUTRAL
LIVE
CH ON
DHW ON
DHW OFF
3 WAY ZONE VALVE
BLUE
WHITE
GREY
ORANGE
2.6 Flue system
The unit is "type C" with a sealed chamber and forced draught, the air inlet and flue outlet must be
connected to one of the following flue systems. With the aid of the tables and methods of calculation indi-
cated, before commencing installation, it is first necessary to check that the flue system does not exceed
the maximum permissible length. The current standards and local regulations must be observed.
It should be noted that only Ferroli flue system and accessories should be used on this appliance,
as per BS 5440 2000 and C.E. test certification.
A.A.V
A.A.V
Auto air vent
OPTIMAX
FERROLI
BOILER
not shown for clarity
(see fig. 15)
Automatic
bypass
(mimimum flow of 6LTR/min.)
Wiring diagram
Junction Box
5
4
3
2
1
Central
L
N
L
heating
pump
1 2 3 4 5 6 7 8 9 10
Cod. 3540M162 - 02/2008 (Rev. 00)
Balancing
valve
Honeywell V4073H mid position
240 Vac
fused at 3 amps
Room Thermostat
fig. 16a
N
E
L
2
C
1
fig. 16b
17
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