AQUAKOND AKY
CONDENSING BOILER
18
code HC0048.10GB ed.B-1811
AKY
ON/OFF boiler
switch
reset button
Lockout
indicator
light
C09660 remote control
LCD panel G16890
4.
USER'S INSTRUCTIONS
P
lease read the safety warnings described in the previous
pages. The operations that the user must carry out
are limited to the use of the controls placed in the remote
control and/or on the ambient.
4.1. Boiler operation
Boiler operation is fully automatic; it is equipped with electronic
equipment with self check facility that manages all the burner
control and monitoring operations and with a microprocessor
based electronic PCB that controls the heat output regulation.
As mentioned above, the explanation focuses on the boiler
without accessories; for information about Smart EASY/WEB
operation, refer to the manuals supplied with the accessory.
The boiler is switched on when the following two conditions
are met:
•
the boiler is powered on and has not been locked out;
•
when the contact is closed on ID2/IDC2 terminals of the
boiler PCB
In these conditions the burner circulator and fan will be immediately
started; after pre-cleaning time has elapsed, the flame will light up
with an ignition power equal to approximately 50% of its maximum
output. Once the flame stabilising time has expired, the burner
will start to modulate its heat output according to the delivery
temperature: water delivery temperature setpoint is set to 72°C.
If a lockout occurs because there is no flame during the ignition
phase, the boiler will make other 4 ignition attempts; at the fifth
attempt, if ignition is not successful, the boiler will be locked out.
The boiler will be switched off when the ID2/IDC2 contact opens
on the boiler terminal box;
disconnecting the boiler power
supply is prohibited, except for emergencies
, because, when
the boiler is switched off, the circulator will continue to work for
approximately 3÷5 minutes so as to eliminate any residual heat in
the boiler (water post-circulation); the fume fan too will continue
to work for approximately 15 seconds to clean up the combustion
chamber (combustion chamber post-cleaning phase).
4.1.1. Ambient temperature setting
Connecting an ambient thermostat (chronothermostat) or an
ON/OFF switch is compulsory.
If a thermostat supplied by third parties is installed, the ambient
temperature must be programmed on the thermostat.
In this type of installation, we recommend that a C09660
remote control is used to allow users to check the conditions
for the lockout and, if necessary, to remotely reset it without
accessing the external boiler.
4.1.2. Lockout and Reset
Any operation fault is signalled on the
C09660
remote control
by means of a red light.
The light indicates an alarm, but it does not indicate the type
of alarm occurred. To reset, press the button below the light.
The error code, from F10 to F99, is signalled by the display located
inside the boiler and/or by the SmartEASY/WEB, if connected.
Using the LCD panel located inside the boiler, unlock by pressing
the two arrows simultaneously for a few seconds.
The error codes are described below.
4.1.3. Boiler temperature setting
When the boiler is delivered, the ST1 value, water delivery
temperature setpoint, has already been set to 72°C; the
parameter can be modified by means of the LCD panel inside
the boiler or through SmartEASY/WEB.
4.1.4. Circulator anti-lock and variable speed
The function, which is enabled by default, starts the circulator
when it fails to operate for twenty-four hours in a row; the
circulator works for 120 seconds and then it stops.
The circulator modifies its speed according to the heat output;
two parameters set the level under which the minimum speed
is activated.
4.1.5. Antifreeze
The function is enabled by default (d8=1) and operates on two
levels: when water temperature drops below a first value, the
circulator is activated in order to circulate water around the
system; when it drops below a second value, the burner too is
switched on for the time required to warm up the system water.
