Checking The Condensate Drain Pipe; 10.11 Visual Inspection Of Appliance; Checking The Gas Supply Pressure - Biasi BASICA COND 28S User Manual And Installation Instructions

Fig. 10.14
• Make sure that the ambient thermostat is
in the position "call for heat".
• Activate the "flue sweep function" at maxi-
mum heating power (see "Setting the
boiler flue sweep function" on page 68).
• Check the combustion of the boiler using
the outlets located on the flue tubes (Fig.
10.14) and compare the data measured
with that following.
Model BASICA COND 28S - M275V.28 SR
Nominal heat input
(A) (E)
Nominal efficiency
Combustion efficiency
Air index
Flue gas CO content
2
Flue gas O content
2
Flue gas CO content
Flue gas temperature
Values refer to tests with a an 80 mm double exhaust
split by 1 + 1 m and natural gas G20 and a supply /
return heating temperature of 60°/80°C.
Fig. 10.15
The values in the tables are measured at
the nominal useful power with factory cali-
bration.
10.10 Checking the condensate
drain pipe
The condensate drain pipe 29 (Fig. 10.16)
does not require any particular mainte-
MAINTENANCE
Flue analysis
points
kW 21,0
% 98,2
% 98,4
n 1,2
% 9,0 - 9,6
% 4,1
ppm 140
°C 82,0
nance but just check:
• That no solid deposits have formed, if so
remove them.
• That the condensate drain piping is not
clogged.
To clean the inside of the siphon, remove it
and turn it upside down to remove any dirt.
29
Fig. 10.16

10.11 Visual inspection of appliance

Visually inspect all water joints, seals and
connections for any evidence of leakage
and retighten, grease or replace them as
necessary.
10.12 Checking the gas supply
pressure
Check appliance for gas tightness.
Re-check operational pressures as de-
scribed in section "Checking the gas supply
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