Gorenje Aqua ECOLOGIC, Instructions For Use, Maintenance And Installation Manual, Page: 101 / 112

ECOLOGIC 30 | instructions for use, maintenance and installation | June 2015
49
boiler and system; in the time of filling "there cannot be a closing element, which could pre-
vent indication of pressure in the boiler in the time of filling"). On the right side of ECOLOGIC
30 (see
figure 17, page 49 ) is a provided DN20 connection for filling release tap. Filling re-
lease tap is intended for filling or emptying the heating system and boiler.

When connecting the boiler ECOLOGIC 30 to central heating system you must use mechanical
elements, which prevent uncontrolled circulation of hot heating water through the boiler
(gravity block, spring non-return valve, solenoid zone valve, electromotor zone valve...). goal
of protection is to ensure amount of heating water flow through the boiler (minimal flow
through the boiler must be over 300 l/h).

When distribution of heating water is regulated by three-way mix valve (floor heating,
weather controlled regulation, where water flow on boiler heating loop is reduced), the sys-
tem is executed with fitted hydraulic switch and pump on primary-boiler heating loop, pump
on boiler heating loop must be controlled by boiler regulation, which already has a factory
produced electrical connection for pump.

When a three-way mix valve is used (for floor or radiator heating, only in case of only one
mixing heating loop), connection of boiler ECOLOGIC 30 is always executed according to
scheme nr. 3 (page 54) , where a hydraulic switch and a pump are built into the installation on
heating cycle with non-return valve (pump is connected to black cable from combustion de-
vice).

Flue connection must executed in accordance with instruction limiting maximum length of
connection pipe Ø 80 (5 m) and that 90-degree joints are considered as resistance on connec-
tion, which reduces length of connection pipe for 1 m (example: if there are 2 joints on flue
connection, the connection cannot exceed length of 3 m). Flue connection must be fitted
with joints with inspections holes for cleaning (see
figure 3 , page 10 ). Joints must be out of at
least 3 segments (joints with three or more segments enable smooth flow of smoke gases
through joint), it is prohibited to use joints with two segments (joints with two segments cre-
ates resistance in flow of smoke gases) (see
figure 6 , page 11 ).

If the flue connection is longer as set forth in the instructions, the installer must use a reduc-
ing element (from Ø 80 female connection to Ø 130 female connection) immediately behind
the fan, and the connection must be made with a pipe Ø 130 (see
figure 18, page 49 )

Electrical connection of boiler must be performed with a cable (see figure 8, page 13 ) in ac-
cordance with instructions. The boiler must not be connected to power supply with a plug –
it must be connected directly to network by a toggle switch, breaking live and neutral wire
(see
figure 19, page 49 ).

Electrical connection of distribution elements (pumps, solenoid valves, electromotor valves...)
must be executed in accordance with the scheme in the instructions, i.e. supply for distribu-
tion elements must be executed from connection cable on the boiler (cable "pump") (see
fig-
ure 8, page 13 ).

Combustion device ECOLOGIC 30, pipes of central heating and flue connection must be
earthed in accordance with professional regulations (earthing conductor with minimum
cross-section 4mm
2
) (see figure 20, page 49 ).