Unical Alkon Cargo 35, Руководство по установке

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17
Instructions for the installer
3.7 - DOMESTIC HOT WATER
CONNECTIONS
WARNING!
Before connecting the boiler to the water
mains supply ensure that the system is
flushed out with a suitable product in order
to eliminate any metallic tooling or welding
residues, oil and grime which could reach
the boiler and affect the correct boiler
operation.
Non-observance of these instructions could
cause injury to persons, animals or damage
to property. The manufacturer shall not be
held liable for any such injury and/or
damage.
The hot water distribution, domestic hot water supply and the
eventual recycle pipework must be connected to their
corresponding ½ boiler pipe connections C, F and Ri as
indicated on page 14.
65
60
55
50
45
40
35
30
0
70
60 120 180 240 300 360 420 480 540 600 0
TE
M
P
ER
A
TU
R
E
(
°C
)
TIME (secs)
DOMESTIC HOT WATER PRODUCTION
Cold water inlet 9°C
draft-off at 15 l/min
Note: The pressure in the system must be
between 1 and 3 bar (if the pressure is higher fit
a reducing pressure valve).
WARNING!
The hardness of the mains water supply
conditions the frequency with which the DHW
heat exchanger is cleaned.
In hard water areas the opportunity of fitting
an adequate scale reducing device for
domestic purposes for treating the mains
water supply to the boiler, in compliance to
the DM n°443 dated 21/12/90, should be taken
into consideration.
Where water hardness exceeds 15°f, a scale
reducing device is always recommended.
Ensure yourself that the system’s water and
central heating piping is not used as earth
clamps for the electrical or telephonic
system. They are absolutely unsuitable for
this use. In a short time this could cause
serious damage to the piping, boiler and
radiators.