Connecting The Boiler - elco R3400 Notice D'installation Et D'emploi

Installation

Connecting the boiler

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Connecting the boiler
This chapter will explain how to make
all connections to the boiler with regard
to:

Hydraulic connections (1, 3)

Condensate drain connection (7)

Gas connection (6)

Flue gas connection (5)

Air intake connection (only when
using roomsealed, order seperately)
(2)

Electrical connection (4)
The boiler should always be connected
in such a way, that the system applies
to all relevant standards and regulati-
ons (European, national and local). It's
the responsibility of the installer to en-
sure that all standards and regulations
are respected.
Hydraulic connections
The boiler should always be connected
in such a way, that water flow through
the boiler can be ensured at all times.
Connect the flow (3) and return (1) con-
nection of the system tension free to
the boiler connections. If the boiler is
used in a system with two return cir-
cuits (only R3600 series), the common
return becomes the low temperature
return, the 2nd return connection is the
high temperature return (remove cap/
flange before connecting).
Condensate connection (7)
After filling with water, the syphon
(included in delivery) should be in-
stalled to the connection at the bottom
of the condensate receptacle. The con-
nection to the draining system should
always be done with an open connec-
tion, in order to avoid a flooding of the
boiler in case of a blocked drain.
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