CTC Union ecoflex, Руководство по установке и обслуживанию

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44 CTC EcoFlex
Installation
9. Hydraulic installation
The installation must be carried out by authorized personnel according to
existing engineering standards and building regulations. The boiler must
be connected to an expansion tank in open (the expansion vessel of high
placement together with safety- and return valve) or closed systems. At an
open system the distance between the expansion vessel and the highest
placed radiator must not be less than 2,5 m to avoid oxygen-enrichment
of the system.Do not forget to flush the radiator system clean before
connection.
Set all settings as described in the ”First start up” chapter
Hydraulic connection boiler
The dimensioning and plumbing of the system shall be accomplished
according to the measurements in the section ”Technical data”.
The heating system can be carried out according to the hydraulic installation
diagram on the following page.
Refer to other headings in this section for the connection of required
components.
Safety valve boiler
In a closed system, an approved safety valve according to existing
regulations must be mounted.
The max. Operation pressure of the boiler is 3 bar. The connection pipe
between boiler and safety valve must be constructed in such a way that no
pressure increase is possible. The safety valve drain pipe must be uncovered
and visible. Possible exhausting high temperature hot water must without
danger be removed (Caution! Risk of scalding!).
Return temperature
The temperature of the return flow (at connection number 4, page 50)must
not be lower than 50 °C.