Check The Operating Pressure, If Necessary Top Up With Heating Water And Vent The System - Buderus Logano G215 WS Operating Instructions Manual

Operation of the heating system
3.4 Check the operating pressure, if necessary top up with heating water and vent the
system
3.4.1 When should you check the operating
pressure?
Recently topped-up heating water loses much of its
volume in the first few days because it releases gases.
This causes air pockets, and the heating system will
start to rumble.
After installing a new heating system, check the
operating pressure daily for the first few days. If
necessary top up with heating water and bleed the
radiators.
After a while the operating pressure will only need to
be checked monthly. If necessary top up with heating
water and bleed the radiators.
3.4.2 Operating pressure, checking
The installer will have set the red needle on the pressure
gauge to the required operating pressure (at least 1 bar
pressure).
Check that the pressure gauge needle is within the
green range.
Top up with heating water if the pressure gauge
needle is below the green range.
3.4.3 Filling the heating system and checking for
leaks
Before commissioning the heating system, check for
leaks to prevent problems during operation. Pressurise
the heating system to 1.3x permissible operating
pressure (observe the safety pressure of the safety
valve).
SYSTEM DAMAGE
over pressure during leak testing.
Pressure, control and safety equipment
CAUTION!
may be damaged through excessive
pressure.
When you carry out a leak test, make
sure that no pressure, control or safety
equipment is fitted which cannot be
isolated from the boiler water chamber.
Shut off the pressure expansion vessel from the
system by closing the cap valve.
Check the connections and pipework for leaks.
Opening the mixing and shut-off valves on the hot
water (primary) side.
Fill the system via an approved filling link.
We reserve the right to make any changes due to technical modifications.
Operating instructions Logano G215 WS oil/gas-fired special boilers • Issue 02/2006
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Fig. 4 Pressure gauge for sealed systems
1 Red needle
2 Pressure gauge needle
3 Green marking
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