Placing The Heating System In Operation; Test Safety Valve; Making The Heating System Ready For Operation - Buderus Logano G234X Installation And Service Instructions Manual

▶ Route the connection cable of the vent damper through the wiring
retainer behind the boiler and between the insulation and the casing
TM
to the AquaSmart [1] on the front of the boiler.
Fig. 16 Installing electrical connection of vent damper
TM
[1] AquaSmart
Fig. 17 Connecting vent damper wiring
[1] Boiler temperature controller
[2] Vent damper connection plug
▶ Connect flue baffle to AquaSmart
All connection points on the complete venting system
must be checked for correct installation and sealing
immediately after carrying out one of the installation
steps. The seams and connections must be checked for
gas leaks. Regulations require the complete flue system
to be checked at least once a year by a trained and
certified installer after installation and initial operation.
Logano G234X – 6 720 804 886 (2012/08)
6 720 804 886-03.1T
1
2
6 720 804 440-18.1T
TM
as shown in the wiring diagram.

Placing the heating system in operation

6 Placing the heating system in operation
▶ Complete the commissioning log during the commissioning
procedure ( page 22).
6.1

Test safety valve

The safety valve must open and release pressure. If the safety valve fails
to release excess pressure, it must be replaced, because otherwise
system components may be damaged by excessive operating pressure.
6.2

Making the heating system ready for operation

The burner and gas fittings unit integrated in the boiler have been tested
in the factory as described in detail in ANSI Z 21.13 and CSA 4.9 to
ensure safe operation of the heating system and to test specific
performance indicators.
DANGER: Risk of fatal injury from electric current when
appliance is opened up!
▶ Before opening the boiler:
Disconnect the heating system from the electrical
power supply by means of the emergency shutoff
switch or the heating system circuit breaker on the
main fuse panel.
▶ It is not sufficient just to switch off the control panel.
▶ Take measures to ensure that the heating system
cannot be switched on again unintentionally.
1. Set the room thermostats to the lowest setting.
2. Inspect flue and combustion air piping and the openings for
combustion air supply and ventilation.
3. Fill heating system with water and bleed the complete system
including the radiators.
4. Unscrew left and right screws in the side panels, lift front panel up,
pull outward and remove to the front.
Fig. 18 Remove front panel of boiler
[1] Locking screws
[2] Boiler jacket
[3] Front panel of boiler
6
17