Pegasus F2
8
3. BOILER INSTALLATION
(To be performed by qualified personnel only)
3.01 General warnings
The boiler should be installed according to current regulations (see para 1.02).
We suggest fitting isolating valves between the boiler and the heating system to isolate the boiler from
the system if necessary.
The rise in temperature of the heating water (the difference between the water flow and return
temperatures) should not exceed 20
°
C. This is so as to prevent possible damage caused by
condensation forming in the boiler.
Combustion products should be discharged through a flue with a cross section in accordance with
current standards and not less than the boiler flue outlet connection.
Connect the gas to the boiler in accordance with current regulations. The diameter of the boiler gas
inlet gas pipe does not dictate the choice of diameter for the pipe between the boiler and the gas meter
should be calculated based upon its length and pressure drop.
3.02 Boiler water characteristics
When the water supply has a hardness of more than 25 - 30 Fr., it should be treated before entering
the heating system to prevent both scaling (caused by hard water) and corrosion (caused by aggressive
water) in the boiler. Please remember that because of their low thermal conductivity, even small scales
just a few millimetres thick cause the boiler walls to overheat considerably with serious consequences.
You must treat the water used for the heating system in the following cases:
A) Very large systems (with large volumes of water).
B) Systems where partial or complete draining - and water refilling - are frequent.
Summary of Contents for PEGASUS F2 102
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