ferolli SKY 11 F, Instructions For Use, Installation And Maintenance

SKY F

12

EN

cod. 3540Z105  -  Rev. 01 - 01/2018

For the connection of separate ducts, fit the unit with the following starting accessory:

fig. 8 - Starting accessory for separate ducts code 010031X0

Before installation, check the baffle to be used and that the maximum permissible length
is not exceeded, by means of a simple calculation:
1.

Completely establish the layout of the system of split flues, including accessories
and outlet terminals.

2.

Consult the table 5 and identify the losses in m

eq

 (equivalent metres) of every com-

ponent, according to the installation position.

3.

Check that the sum total of losses is less than or equal to the maximum permissible
length in table 4.

Table. 4 - Baffles for separate ducts

Table. 5 - Accessories

4. SERVICE AND MAINTENANCE

All adjustment, commissioning and periodic checking operations described below must
only be carried out by Qualified Personnel (meeting the professional technical require-
ments prescribed by the current regulations).

FERROLI

 declines any liability for damage and/or injury caused by unqualified and un-

authorized persons tampering with the unit.

4.1 Adjustments
Gas conversion

B

Conversion to a different gas from that prearranged in the factory must
be carried out by an authorised technician, using original parts and in
conformity with the regulations in force in the country of installation.

The unit can operate on natural gas or LPG and is factory-set for use with one of these
two gases, as clearly shown on the packing and on the dataplate. Whenever a different
gas to that for which the unit is preset has to be used, a conversion kit will be required,
proceeding as follows:
1.

Replace the nozzles at the main burner, fitting the nozzles specified in the technical
data table in cap. 5, according to the type of gas used

2.

Modify the parameter for the type of gas:
•

put the water heater in standby mode

•

press the on/off button (detail 7 - fig. 1) for 20 seconds: the display shows
"

b01

"flashing.

•

press the DHW buttons (details 1 and 2 - fig. 1) to set parameter 

00

 (for natural

gas) or 

01

 (for LPG).

•

press the on/off button (detail 7 - fig. 1) for 20 seconds.

•

the water heater will return to standby mode

3.

Adjust the minimum and maximum pressures at the burner (see relevant section ),
setting the values given in the technical data table for the type of gas used

4.

Apply the sticker contained in the conversion kit, near the dataplate as proof of the
conversion.

TEST mode activation

Draw enough domestic hot water to activate the DHW mode.
Press the buttons (details 1 and 2 - fig. 1) together for 5 seconds to activate the 

TEST

mode. The water heater will light at the maximum DHW power set as described in the
following section.
The DHW power will be shown on the display.

fig. 9 - TEST mode (DHW power = 100%)

Press the buttons (details 1 and 2 - fig. 1) to increase or decrease the power (Min.=0%,
Max.=100%).
To deactivate the TEST mode, press the buttons (details 1 and 2 - fig. 1) together for 5
seconds.
The TEST mode is automatically disabled in any case after 15 minutes or on stopping of
hot water drawing (if enough hot water was drawn to activate the DHW mode).

Adjustment of pressure at burner

Since this unit has flame modulation, there are two fixed pressure values: the minimum
and maximum, which must be those given in the technical data table according to the
type of gas.
•

Connect a suitable pressure gauge to pressure point 

"B"

 downstream of the gas valve.

•

Activate the TEST mode (see cap. 4.1).

•

Press the 

off button (ref. 7 - fig. 1)

 for 2 seconds to access the gas valve Calibra-

tion mode.

•

The card goes to the setting “

q02

”; displaying the actually saved value, by pressing

the DHW buttons.

•

If the pressure gauge reading is different from the nominal maximum pressure, pro-
ceed by increases/decreases of 1 or 2 units of parameter "

q02

" by pressing the

DHW buttons: the value is stored after each modification;  wait 10 seconds for the
pressure to stabilise.

•

Press the 

off button

 (ref. 7 - fig. 1).

•

The card goes to the setting “

q01

”; displaying the actually saved value, by pressing

the DHW buttons.

•

If the pressure gauge reading is different from the nominal minimum pressure, pro-
ceed by increases/decreases of 1 or 2 units of parameter “q01” by pressing the
DHW buttons: the value is stored after each modification; wait 10 seconds for the
pressure to stabilise.

•

Recheck both adjustments by pressing the 

off button (ref. 7 - fig. 1)

 and adjust

them if necessary by repeating the above procedure.

•

Press the 

off button

 for 2 seconds to return to the TEST mode.

•

Deactivate the TEST mode (see cap. 4.1).

•

Disconnect the pressure gauge.

SKY F

Max. permissible length

Model

Length

SKY F 11

65 m

eq

SKY F 14

55 m

eq

SKY F 17

45 m

eq

Baffle to use

Model

Length

Baffle

SKY F 11

0 - 20 m

eq

Ø 39

20 - 35 m

eq

Ø 43

>35 m

eq

No baffle

SKY F 14

0 - 20 m

eq

Ø 47

20 - 35 m

eq

Ø 50

>35 m

eq

No baffle

SKY F 17

0 - 20 m

eq

Ø 47

20 - 35 m

eq

Ø 50

>35 m

eq

No baffle

Losses in m

eq

Air

inlet

Fume exhaust

Vertical

Horizontal

Ø 80

PIPE

0.5 m M/F

1KWMA38A

0.5

0.5

1.0

1 m M/F

1KWMA83A

1.0

1.0

2.0

2 m M/F

1KWMA06K

2.0

2.0

4.0

BEND

45° F/F

1KWMA01K

1.2

2.2

45° M/F

1KWMA65A

1.2

2.2

90° F/F

1KWMA02K

2.0

3.0

90° M/F

1KWMA82A

1.5

2.5

90° M/F + Test point

1KWMA70U

1.5

2.5

PIPE SECTION

with test point

1KWMA16U

0.2

0.2

for condensate drain

1KWMA55U

-

3.0

TEE

for condensate drain

1KWMA05K

-

7.0

TERMINAL

air, wall

1KWMA85A

2.0

-

fumes, wall with antiwind

1KWMA86A

-

5.0

FLUE

Split air/fumes 80/80

1KWMA84U

-

12.0

Fume outlet only Ø80

1K
1KWMA86U

-

4.0

120

82

136

82