Ferroli ATLAS D ECO COND Manual De Usuario página 38

The circulating pump does not modulate its power. The operating principle is that of con-
ventional 3-speed circulating pumps (with a reduction in power consumption compared
to them). The operating range goes from speed 1 (I) to speed 3 (III).
High-efficiency circulating pump (model PARA)
Control buttons and signaling LEDs
In normal operation, the LED lights up green
LED on/flashing in case of a fault
Selected adjustment mode:
Selected characteristic curve (1
adjustment mode
Combined LED indications during circulating pump venting, manual
restart and button lock
Press the button to set the various adjustment combinations
•
•
•
For a correct result of the "Thermal quantity balance" calculation (see section 11 THER-
MAL QUANTITY BALANCE (METERING), the circulating pump must be set to "Con-
stant speed " and to the position
several times until the LEDs shown in the figure below light up.
However, a different operating strategy can be set, depending on the characteristics of
the system.
- Setting p-v Proportional Head
The circulating pump head will be automatically reduced with the decrease in flow rate
required by the system.
The strengths are reduced power consumption as the system demand decreases, and
reduced noise. The operating range is from minimum to maximum.
- Setting p-c Constant Head
The circulating pump head is constant as the flow rate required by the system varies.
- Setting Fixed speed
The circulating pump does not modulate its power. The operating principle is that of con-
ventional 3-speed circulating pumps (with a reduction in power consumption compared
to them). The operating range is from speed 1 (
38
EN
fig. 19
Proportional head p-v
Constant head p-c
Fixed speed
, 2 , 3
Press for 3 seconds to activate circulating pump venting
Press for 5 seconds for manual restart
Press for 8 seconds to lock/unlock the button
. To set this adjustment, press button "A"
fig. 20
) to speed 3 ( ).
cod. 3541Q463 - Rev. 00 - 09/2021
ATLAS D ECO COND UNIT
Water system characteristics
In the presence of water harder than 25° Fr (1°F = 10ppm CaCO3), use suitably treated
water in order to avoid possible scaling in the boiler. Treatment must not reduce the hard-
ness to values below 15°F (Decree 236/88 for uses of water intended for human con-
sumption). Treatment of the water used is indispensable in case of very large systems
or with frequent introduction of replenishing water in the system.
If water softeners are installed at the boiler
B
cold water inlet, make sure not to reduce the
water hardness too much, as this could cause
early deterioration of the magnesium anode in
the hot water tank.
Antifreeze system, antifreeze fluids, additives and inhibitors
The boiler is equipped with an antifreeze system that turns on the boiler in heating mode
when the system delivery water temperature falls under 6°C. The device will not come
on if the electricity and/or gas supply to the unit are cut off. If it becomes necessary, it is
permissible to use antifreeze fluid, additives and inhibitors only if the manufacturer of
these fluids or additives guarantees they are suitable for this use and cause no damage
to the heat exchanger or other components and/or materials of the boiler unit and sys-
tem. It is prohibited to use generic antifreeze fluid, additives or inhibitors that are not ex-
pressly suited for use in heating systems and compatible with the materials of the boiler
unit and system.
Connection to a storage tank for domestic hot water production
The unit's electronic board is arranged for managing an external storage tank for domes-
tic hot water production. Make the plumbing connections according to the diagram
fig. 21. Carry out: electrical connections as shown in the wiring diagram in cap. 4.5. A
probe FERROLImust be used.
Carry out the access procedure described below.
"Service Menu"
The card Service Menu is accessed by pressing the Reset button for 10 seconds.
Press the Heating buttons to select "tS", "In", "Hi" or "rE". "tS" means Transparent Pa-
) within the
rameters Menu, "In" Information Menu, "Hi" History Menu, and "rE" History Menu Reset.
Select "tS" and press the Reset button.
The card has 20 transparent parameters also modifiable from Remote Control (Service
Menu).
Press the Heating buttons to scroll the list of parameters in increasing or decreasing or-
der. Press the DHW buttons to modify the value of a parameter: the change will be au-
tomatically saved.
Change parameter P02 of the "Transparent Parameters Menu" to 6.
Press the Reset button to return to the Service Menu. Press the Reset button for 10 sec-
onds to exit to the card Service Menu.
fig. 21 - Diagram of connection to external hot water tank
Key
8 Domestic hot water outlet
9 Domestic cold water inlet
10 System delivery
11 System return
95 3-way valve - 2 wires with spring return (not provided)