Rayburn Heatranger 480D, Руководство по установке

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Suitability
The boiler is designed for use on a fully pumped low
pressure hot water circulation system, with a pumped
over rum facility or alternatively on a sealed system
limited to 2 bar.
SEE FIG. 3
Space and water heating systems should be in
accordance with the relevant recommendation of BS
5410: Part 1.
In a combined central heating and domestic hot water
system, the hot water storage vessel must be of the
indirect cylinder type to BS 1566: Part 1. The hot water
storage vessel should be insulated with not less than
75mm thick mineral fibre or its equivalent.
Cisterns and pipework situated in areas which may be
exposed to freezing conditions should be insulated.
Draining taps must be located in accessible positions
which permit the draining of the whole system, including
the heat storage vessel. Draining taps should be at least
1/2in. BSP nominal size and be in accordance with BS
2879.
The appliance boiler section should be connected to a
cistern water supply, subject to a maximum head of
18.25m. The heating system must be designed (and
adjusted if necessary) to give a temperature differential
across the boiler at full output of 10-14
˚ C. When
horizontal runs are used the pipes should rise upwards in
the direction away from the appliance.
Circulating Pump
It is recommended that the selected pump be sized to
suit the boiler pressure loss (see Fig 3) and therefore
adequate to give the required temperature differential
between the flow and return.
The pump should be able to meet the requirements of
the system design and fitted in a readily accessible
position.
Isolating Valves
Isolating valves (preferably of the keyless type) must be
fitted to the inlet and outlet of the circulating pump to
facilitate service and replacement of pump without
draining the system.
Inhibitor
A corrosion inhibitor MUST be added to the heating
system to protect the heat exchanger and pipework.
Inhibitor must also be replaced if the system is drained
after installation. As a precaution the heating MUST also
be flushed out prior to the addition of the inhibitor to
ensure any flux, debris is removed.
Site requirements
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WATER CIRCULATION SYSTEM
FIG. 3