Start-up procedure9
Logamax plus GB162-80 kW/100 kW - Subject to modifications resulting from technical improvements!48
z Open the heating supply and return isolating valves on
the pump group (fig. 49). The open position is parallel to
the pipe.
z Fill the heating system to a pressure of about 20 psi
(1.5 bar).
z Read the pressure (PSI) from the pressure gauge on the
pump group or on the control panel of the BC10 (fig. 50).
The pressure in the heating system, which is measured
directly at the boiler, must be at least equal to the required
pre-pressure of the expansion vessel plus 7 psi (0.5 bar).
This minimum pressure must not be less than 12 psi
(0.8 bar) (if the heating system is cold). The maximum pres-
sure in the heating system, measured directly at the boiler,
must not exceed 30 psi (2.6 bar) or 50 psi (3.5 bar) when the
optional 50 psi (3.5 bar) pressure relief valve is used.
z Purge the heating system via the air vents on the heating
bodies. Start at the lowest floor of the premises and then
work your way up from floor to floor.
9.3 Fill the condensate trap with water
z Fill the condensate trap with water (fig. 51).
Fig. 49 Opening the isolating valves (here: open position)
Fig. 50 Reading the pressure gauge
P22
1
110
140
130
120
90
100
130
170
150
90
110
190
psi
10
20
30
Fig. 51 Filling the condensate trap with water
NOTICE
For high temperature and non-condensing
applications use minral oil.
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