Ferroli ECONCEPT 101 Instructions For Use, Installation And Maintenance Download

Page: 51 / 120

ECONCEPT 51/51i - 101/101i

Accessing the electrical terminal block

The electrical terminal block is located inside a sealed box at the bottom left of the cab-
inet. Make the electrical connections as shown in the wiring diagram on sec. 47 and run
the cables through the special cable glands.

fig. 26 - Electrical terminal block

DHW temperature sensor (not supplied)

Room thermostat (not supplied)

72b

Room thermostat (not supplied)

Diverter valve (not supplied)

= Heating phase

= DHW phase

= Neutral

NOTE:

For valves with 2 wires and spring return, use the connections B and C

130

DHW circulating pump (not supplied)

138

External probe (not supplied)

139

Remote timer control (not supplied)

298

Cascade temperature sensor (not supplied)

299

Input 0-10 Vdc

300

Burner lit contact (voltage-free contact)

301

Fault contact (voltage-free contact)

302

Remote reset input (230 Volt)

306

Heating system circulating pump (not supplied)

307

Heating system second circulating pump (not supplied)

For connection in cascade (MAX. 5 MODULES)

Connect the modules as shown in fig. 27 (

example with 4 modules

)

fig. 27 - Connection in cascade

1st Module

2nd Module

3rd Module

4th Module

Carry out all the electrical connections (terminals 4 to 24) on module no. 1

On the remaining modules only connect the power supply and possible contacts for:
burner lit (300), fault contact (301) and remote reset input (302).

Switch on the power to the entire cascade

After the "FH" procedure, check correct operation of the cascade:
•

Module 1: arrow symbol at top left of the display

•

Module 2: arrow symbol at bottom right of the display

•

Module 3: arrow symbol at bottom right of the display

•

Module 4: arrow symbol at top right of the display

If this does not occur, disconnect the power and check the wiring in fig. 27.

Settings

All adjustments must be made on all the modules.

Possible faults

If the electrical connection of a module is disconnected for any reason, module 1 will ac-
tivate fault

F70

If the electrical connection of a module is disconnected for any reason, the next module
will activate fault

F71

3.5 Flue connection
Important

The unit is a B23 type with combustion air drawn from the installation room and fume ex-
haust by means of a fan (operation with flue pressurised) and must be connected to one
of the discharge systems indicated below. Before proceeding with installation, check and
carefully comply with the local regulations and provisions. Also comply with the provi-
sions concerning the positioning of wall and/or roof terminals and minimum distances
from windows, walls, ventilation openings, etc.
Manifold, ducts and flue must be suitably sized, designed and made in compliance with
current regulations. These must be made of suitable materials, i.e. resistant to heat and
corrosion, smooth on the inside and hermetic. In particular, joints must be condensate
tight. Also provide for suitable condensate drain points, connected to a trap to prevent
the condensate formed in the flues from running into the generators.

The unit is equipped with two separate Ø80 flue connections for the two burner
- exchanger units (fig. 28) located inside the cabinet.
The combustion circuits of the two units are completely independent. When
joining the two fume outlets to a single flue or manifold (in case of a single mod-
ule or connection in cascade)

it is necessary to install a fume anti-backflow

valve on each outlet

to prevent operation anomalies or to creation of hazard-

ous conditions. Make sure to use the optional kits FERROLI, provided with spe-
cial anti-backflow valves for installing inside the cabinets, in a position protected
against the atmospheric agents.

Before carrying out the flue connection, make sure to fill the condensate tank
as indicated incap. 3.6.

fig. 28

9 10 11 12

13 14 15 16 17 18 19 20 21 22 23 24

(

( (

(

300

301

302

299

139