Instructions For Installation - Immergas 3.011668 Manual

GENERAL WARNINGS.
All Immergas products are protected with suitable transport
packaging.
The material must be stored in a dry place protected from the
weather.
This instruction manual provides technical information for
installing the Immergas kit. As for the other issues related to
kit installation (e.g. safety at the workplace, environmental
protection, accident prevention), it is necessary to comply with
the provisions specified in the regulations in force and with the
principles of good practice.
Improper installation or assembly of the Immergas appliance
and/or components, accessories, kits and devices can cause
unexpected problems for people, animals and objects. Read
the instructions provided with the product carefully to ensure
proper installation.
Installation and maintenance must be performed in compliance
with the regulations in force, according to the manufacturer's
instructions and by professionally qualified staff, meaning staff
with specific technical skills in the plant sector, as envisioned
by the law.
DESCRIPTION OF THE PRODUCT.
This Kit has been designed to be combined with systems with
zone valves or external circulator pumps and can manage
up to a maximum of 3 zones. The Comando Amico Remoto
(Remote control) (CAR
V2
The "Zone system connection kit" must be installed outside the
boiler in compliance with the instructions below. Room ther-
mostats or chrono-thermostats combined with the "Zone Con-
nection Kit" must be equipped with a potential-free contact.
PROVISIONS FOR INSTALLATION.
The connecting cables of the room thermostats must never be
coupled to 230 V line cables.
The maximum distance of connections between zone kits and
room thermostats must not exceed 50 m.
The maximum distance of connections between zone kits and
boiler must not exceed 15 m.
The minimum conductor cross-section for 24 V connections
is 0.5 sq. mm
In order to guarantee the perfect watertightness of the box,
it must be installed in such a way that the cable clamps are in
a horizontal position and that the cables are passed through
them correctly. If there are any unused cable clamps left, the
holes must be closed in order to maintain IP 44 protection.
DHW PHASE:
If a DHW withdrawal is in progress, or if summer operation
is set, the control unit disables all zone relay outputs.
Code 1.046069 - Rev. ST.005671/000
ZONE SYSTEM CONNECTION KIT
) controls zone 1.
V2
IE
CODE 3.011668

INSTRUCTIONS FOR INSTALLATION:

The following operations must be carried out by technically
qualified personnel. Before performing any operation, remove
the power supply to the boiler by acting on the switch placed
upstream from the appliance. The kit's electrical connection
cables must pass through the appropriate cable clamps. It is
recommended to tighten the cable clamps after making the
electrical connections.
For electrical connections to the boiler, refer to the relevant
instruction booklet.
• Connection of the zone valves / zone circulator pumps:
the zone valves must be connected on terminal boards "X2"
and "X4" and for earthing to terminal board "X3" of the zone
kit, in compliance with the numerical order dedicated to the
various zones.
• Connection of room thermostats: The contacts of the room
thermostats must be connected to terminal board "X9" of the
zone kit.
• Connection of the zones control unit to the boiler: To en-
able dialogue between the boiler and the zone kit, and vice
versa, you must connect the "X5" and "X15" terminal boards
of the zone control unit to the boiler connection terminal
board.
Remove any jumper present at terminal boards 40 and 41 of
the boiler.
If terminal 21 is not available on the boiler, it is recom-
mended, during the summer phase, to check that the room
thermostats do not make any requests, in order to avoid the
operation of the circulator pumps and consequent energy
waste.
• Zones control unit power supply connection: the power
supply of the zone kit must be connected to the 230 V AC
mains by inserting an omnipolar switch and relative fuse
correctly sized according to the loads connected to the zone
kit.
It is also possible to connect the 230 V AC power supply of
the zone kit directly to terminals A and B on the boiler after
checking the absorption (fuse 3.15 A).
• CAR connection: the CAR
V2
operation (see CAR
can be used to control zone 1 as an alternative to the room
thermostat. For CAR
relevant instructions booklet.
Under these conditions, any request for heating mode from
CAR causes the relay of zone 1 (main zone) to close.
V2
must be set up for On-Off
V2
instruction booklet). The CAR
V2
connection to the boiler, refer to the
V2
V2