Manual Elco R3500 (page 22 of 192) (English, German, Dutch, French, Italian)

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Installation

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.

4 5 6

1 2 3

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Elco R3500 Manual

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