7
ENGLISH
4 - HYDRAULIC CONNECTIONS
Position and dimensions of hydraulic connections are specified in figure 26:
R -
CH return
3/4”
M -
CH delivery
3/4”
G -
Gas connection
3/4”
AC -
DHW outlet (KIS)
1/2”
RB
= water tank return (IS) 3/4”
AF -
DHW inlet (KIS)
1/2”
MB
= water tank delivery (IS) 3/4”
SC -
outlet collector
F -
Support plate
G -
Pre-installation template
5 - INSTALLING THE EXTERNAL PROBE
The sen
sor (Fig. 32) must be installed on an external wall of the building
you want to heat, while taking care to comply with the instructions below:
- It must be fitted on the facade most often exposed to wind, on a wall facing
NORTH or NORTH-WEST, and taking care to avoid direct sunlight.
- It must be fitted about 2/3 up the height of the façade.
- It must not be near any doors, windows, outlets for air ducts, or near
chimneys or other heat sources.
The electrical connection to the external sensor must be formed using a two-
pole cable (not supplied), with a cross-section of 0,5 to 1 mm
2
and a maximum
length of 30 metres. It is not necessary to worry about the polarity of the cable
for the connection to the external sensor. Do not form joints in this cable.
If a joint has to be made it must be watertight and adequately protected.
Any conduiting used for the connection cable must be separate from the
conduits used for the power cables (230 Vac).
WALL MOUNTING OF THE EXTERNAL SENSOR.
Install the probe in an area of smooth wall; for brick walls or other irregular
surfaces, prepare a smooth contact area if at all possible.
Remove the upper plastic cover by turning it anti-clockwise.
Identify the wall fixing point and drill a hole for the 5x25 expansion grip.
Insert the expansion grip into the hole.
Remove the card from its housing.
Fix the housing to the wall using the supplied screw.
Attach the bracket and tighten the screw.
Loosen the cable grommet screw, push in the probe connection cable and
connect it to the electrical terminal.
Remember to firmly secure the cable grommet to prevent humidity from
entering.
Put the card back into its housing.
Close the upper plastic cover by turning it clockwise. Firmly secure the
cable grommet.
6 - CONDENSATE COLLECTION
The outlet collector
A
(Fig. 33) collects: the condensate water, any evacuation
water from the safety valve and the system outlet water.
The collector must be connected, by means of a rubber pipe, to a suit-
able collection and evacuation system in the storm water outlet and in
compliance with current regulations.
The external diameter of the collector is 20 mm: we therefore suggest
using an Ø 18-19 mm pipe, to be closed with a suitable clamp (not
supplied).
The manufacturer is not responsible for any damage caused by the lack
of a collection system.
The outlet connection line must have a guaranteed seal.
The manufacturer of the boiler is not responsible for any flooding caused
by interventions of the safety valve.
7 - GAS CONNECTION
Before connecting appliance to gas pipe network, check the following:
- regulations in force are met
- gas type used is the same as set for appliance operation
- pipes are clean.
Gas must be piped externally. If the pipe goes through a wall it must go
through the central opening in the lower part of the template. It is recom
-
mended to install an appropriately sized filter on the gas line in case gas
from the mains contains some small solid particles. After installation make
sure that all the joints have been made airtight conforming to standard
installation practices.
8 - ELECTRIC CONNECTION
To access the electrical connections, proceed as follows:
- unscrew the lower cover fixing screw
C
, (Fig. 29)
- pull the cover towards you and remove (
A-B
) (Fig. 30)
- loosen the fixing screws (
D
) and remove the shell (Fig. 28)
- lift up the panel and turn it forwards
- open the terminal board covers making them slide in the direction of the
arrows (Fig. 34:
E
high voltage connections 230 V,
F
low voltage connec
-
tions,
G
water tank sensor connections only Family Condens IS).
Connect the appliance to the mains power supply with a switch featuring a
distance of at least 3,5 mm (EN 60335-1, category III) between each wire.
The appliance uses alternating current at 230 Volt/50 Hz, has a power input
of 125 W (2.5 KIS - 2.5 IS) and 152 W (3.5 KIS - 3.5 IS) and complies with
EN 60335-1 standard. Connect the boiler to a safe earth circuit according
to current legislation.
Live and neutral (L-N) connections should also be respected.
The boiler can operate with phase-neutral or phase-phase power supply. For
floating power supply, without an earth-bonded conductor, it is necessary to
use an insulation transformer with secondary anchored to ground.
The earth conductor must be a couple of cm longer than the others.
Gas and/or water pipes may not be used to earth electrical equipment.
The installer is responsible for making sure that the appliance has an
adequate earthing system; the manufacturer shall not be held liable
for eventual damages caused by incorrect usage or failing to earth the
boiler.
Use the
supplied power cable
to connect the boiler to the mains power
supply.
Connect the ambient thermostat and/or time clock as shown in the electrical
diagrams.
When replacing the power cable, use a HAR H05V2V2-F cable, 3 x 0,75
mm
2
, Ø max. external 7 mm.
9 - FILLING AND EMPTYING THE SYSTEM
The central heating system can be filled up once the water mains have been
connected up.
This must be done while the installation is cold by:
- turn the caps
of the lower (A) and upper (E) automatic bleed valves two
or three times; leave A and E valve caps open for continual air venting
(Fig. 35a-35b);
- making sure the cold water inlet tap is open
- opening the filling tap (
B,
on the boiler for Family Condens KIS, external for
Family Condens IS) until the pressure on the hydrometer (
C
) is between
1 and 1,5 bar.
Close the filling tap after filling it up.
The boiler is equipped with an efficient air separator so that there is no need
to do anything manually.
The burner only ignites when air venting has finished.
NOTE:
air extraction from the boiler takes place automatically, through two
automatic bleeding valves,
A
and
E
.
The first is situated on the pump, while the second is inside the air chamber.
NOTE (Family Condens KIS only):
the boiler is also equipped with a semi-
automatic filling system. The first system-filling operation must be carried out
by opening tap
B
with the boiler turned off.
NOTE (Family Condens IS only):
manual filling tap is not supplied with the
boiler, foresee one external or verify if external water tank has one.
Before starting to empty it, remove the electrical feeder by positioning the
general switch for the system on “off”.
- Close the interception devices for the thermal system
- Loosen the system outlet valve (
D
) manually
- The water from the system is discharged through the outlet collector (
F
).
DHW system emptying (Family Condens KIS only)
The hot water system must be emptied every time there is risk of freezing by:
- turning off the tap at the mains
- turning on all the hot and cold taps
- emptying out the lowest parts of the system.
Suggestions to correctly eliminate air from the heating system and
boiler (Fig. 36)
We recommend carrying out the sequence of operations given below during
first installation or with extraordinary maintenance work:
1. Using a CH11 spanner open the manual air vent valve located above
the air box; the tube supplied with the boiler must be connected to the
valve to let out the water into an outside container.
2. Open the manual system filling stopcock on the water group, wait until
the water starts coming out of the valve;
3. Switch on the boiler leaving the gas cock closed;
4. Use the room thermostat or the remote control panel to activate request
for heat so that the three-way will turn to heating;
5
.
Activate request for hot water as follows:
instant boilers
: turn on a tap for 30” every minute so that the three-way
cycles from heating to domestic hot water and vice versa about ten times
(here the boiler will go into alarm as it lacks gas and has to be reset every
