6
Placing the heating system in operation
Logano G334X – 6 720 811 237 (2014/05)
20
5.10.6 Electrically connecting the vent damper
▶ Disconnect the heating system from the power supply.
▶ Route the connection cable of the vent damper through the wiring
retainer behind the boiler and between the thermal insulation and
the jacket to the aquastat [1] on the front of the boiler.
Fig. 25 Electrically connecting the vent damper
[1]
Aquastat
▶ Connect vent damper to aquastat as shown in the wiring diagram.
6
Placing the heating system in operation
▶ Complete the commissioning report during this process
(
Chapter 6.8, page 26).
6.1
Testing the safety valve
The pressure relief 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.
1. Set the room thermostats to the lowest setting.
2. Inspect flue gas 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 the locking screws [2] at the bottom of the front wall of the
boiler [1], lift front wall of boiler, tilt it forward and remove it.
Fig. 26 Removing front panel of boiler
[1]
Front wall of boiler
[2]
Locking screws
DANGER:
Danger to life from electric shock!
▶ Only qualified electricians are permitted to carry out
electrical work.
▶ Before opening the appliance, disconnect it from the
power supply by means of the emergency shutoff
switch or the appropriate building fuse.
▶ Take measures to ensure that the heating system
cannot be accidentally reactivated.
▶ Please observe all installation instructions.
DANGER:
Fire hazard from hot boiler components!
Hot boiler components may damage electrical cables.
▶ Ensure that the electrical cables are not touching any
hot parts.
▶ Make sure that all cables are routed through the
conduits provided.
All connection points on the complete flue gas system
must be checked for correct installation and sealing
immediately after carrying out each of the installation
steps. The seams and connections must be checked for
gas leaks. Regulations require the complete flue gas
system to be checked at least once a year by a trained
and certified installer after installation and initial
operation.
1
6 720 810 547-33.1T
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 appropriate building fuse.
▶ It is not sufficient just to switch off the controller.
▶ Take measures to ensure that the heating system
cannot be accidentally reactivated.
1
2
6 720 810 547-35.1T
Summary of Contents for G334X
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