7
ENG-030B/p.392
(e.g. valves) on the outlet of the safety valve [9] (fig.1),
- unit can’t be installed in a humid place or in a place exposed to the danger of explosion.
- unit must be protected by filter with magnetic insert ( included in the boiler kit).
Conditions of Installation
- appropriate power supplies;
- an efficient electrical installation
which has been completed in ac-
cordance with the binding norms
of electric installation,
- a wet central heating system
made in accordance to binding
norms,
- a wet central heating system
equipped with appropriate ex-
pansion vessel in accordance
with the binding norms,
- a wet central heating system
must be flushed out before boiler
installation,
- do not install any barrier fittings
All installation work should
be carried out with water and
power supply shut off.
Fig.2 Central heating installation
scheme
PI - manometer
ZK - cut-off valve
F - filter with magnetic insert
RW - expansion pipe
NW - expansion vessel
ZT - thermostatic radiator valve
ZP - passage valve
G - heater
RP - room programmed thermostat
EKCO.T boiler (version equipped with heat
exchanger)
ZTD - three-way valve
ZAS - coil cylinder
TZ - cylinder temp. sensor or cylinder
thermostat contacts
2
Installation
7
ENG-030B/p.392
Installer instruction manual
Its recommended for electric
installation with thermostatic
radiator valves to apply the dif-
ferential pressure relief valve. It
allows the system to keep mini-
mal flow of medium through
the boiler and reduce noises in
installation during the thermo-
static valves closing. The valve
must be installed in by- pass
conduit (before the boiler)
according to manufacturer’s
instruction.
A filter must be installed on return pipe-work of central heating installation (before
boiler inlet). The filter must be installed in horizontal position accordingly to the arrow
that shows a flow direction.
