USER MANUAL CENTRAL HEATING BOILER TYPE C38GC25; C38GC25-P; C38GC29; C38GC35; C38GC35-CH1; C38GC35-CH2
REV. 01.07.2019
18 din 37
Before commissioning the central heating BOILER approximately 1/2 liters of water must be introduced by means of the burning
gases output connecting pipe (fig. 1.4), to form a “water plug” inside the seal box – in this way we prevent burning gases to be
evicted in the room.
The route of condensation output must be continuously downwards (so as not to have areas of condensation stagnation,
especially in areas where there is the danger of freezing). The route of the condensation output must respect the applicable
norms regarding residual waters.
5.6
Connecting pipe of the safety valve
Caution!
Danger of hot water burns!
The connecting pipe of the pressing of the safety valve is connected to the drain pipe to the sewage system.
Otherwise, there is always the risk of flooding, for which the manufacturer of the central heating BOILER is not responsable.
5.7
Air inlet pipe / burnt gases outlet pipe
The central heating BOILER does not require air plugs in the room where it is installed.
The air necessary for burning to ensure the efficient functioning of the central heating BOILER must to be taken from the outside
of the building.
The equipment is delivered with a co-xial or dual type air input/ burnt gases output system called an evacuation kit. The
equipment is delivered with a standard co-axial evacuation kit. On demand, a dual evacualtion kit can be delivered. It is also
possible to order additional 45° and 90° corners as well as 0.5m and 1m elongations for both the dual and the co-axial systems.
Caution!
It is obligatory to place central heating BOILER in rooms with proper ventilation systems according to applicable
norms. Study the technical instructions before mounting/ installation, commissioning or maintenance or repair work.
Under no circumstances the total length of the co-axial kit, including elongations, is to be longer than 3 m (without the first
corner).
Under no circumstances the total length of the dual kit, including elongations, is to be longer than 5 m (without the first
corner).
Danger!
It is completely forbidden to use the central heating BOILER without the burnt gases output pipes because it
endangeres people’s life and health of people.
Replacement is to be performed only by authorized personnel following applicable laws and using only original spare parts
provided by the producer.
5.8
Electric grid connection
The central heating BOILER must be connected to one-phase network of 230V - 50Hz with protection null.
Dispersion withstand of the earthing switch (earthing) must comply with applicable norms (maximum 4 ohm, and the working
null must not have residual current).
Electric powering of the central heating BOILER will be executed from a separate circuit provided with differential protection
fuses of 30 mA.
External connections must comply with applicable norms. Connection to the electric grid of the building must allow the entire
electric insulataion of the central heating BOILER for situations when interventions are required.
Grid connection is done taking into account the symbolism of colours as follows:
Brown
= phase,
Blue
= null,
Green and Yellow
=
earthing.
The current plug must be accessible so that the user can easily disconnect it.
Caution!
It is not allowed to mount the central heating BOILER with a defective electric installation or with no earthing.
Danger!
Danger of death by electric shock with electric contacts!
8.9 Filling and emptying the heating circuit
Caution!
Filling of the installation can be done only with the fuel tap closed.
Danger of explosion when BOILER is turned on!
The following operations are executed to fill the installation:
- install a flexible hose with interior diameter of 9mm
to the manual airifier - fig. 1.8 (with central heating
BOILERs without automatic airifier)
- ellectrically power the central heating BOILER;
- open the filling tap (fig. 1.6) of the central heating
BOILER and of the thermal/ house water installation;
- load the boiler with a pressure of about 0.4 bar,
indicated on the display;
- open the pump air vent;
- activate the boiler ventilation module to vent the
system: press the J5 (
MENU / OK
) key for activation
and the pump will start, the boiler is in the OFF
(Stand-by) state, to deactivate it press the J5 (
MENU
/ OK
) or by turning on the POWER button;
Fig. 1.6
