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Siemens LAL Series Manual page 2

Oil burner controls
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Warning notes
Mounting notes
Installation notes
Electrical connection of the flame detector
Commissioning notes
Safety check to be carried out
a)
Burner startup with flame detector darkened
b)
Burner startup with flame detector exposed to extrane-
ous light
c)
With wire strap «B»:
Simulation of loss of flame during operation. For that
purpose, darken the flame detector during operation
and maintain that state
d)
Without wire strap «B»:
Simulation of loss of flame during operation. For that
purpose, darken the flame detector during operation
and maintain that state
2/19
Building Technologies Division
Infrastructure & Cities Sector
To avoid injury to persons, damage to property or the environment, the following
warning notes must be observed!
Do not open, interfere with or modify the unit!
All activities (mounting, installation and service work, etc.) must be performed by
qualified staff
Before making any wiring changes in the connection area, completely isolate the
plant from mains supply (all-polar disconnection). Ensure that the plant cannot be
inadvertently switched on again and that it is indeed dead. If not observed, there is
a risk of electric shock hazard
Ensure protection against electric shock hazard by providing adequate protection
for the burner control's connection terminals
Each time work has been carried out (mounting, installation, service work, etc.),
check to ensure that wiring is in an orderly state and make the safety checks as
described in «Commissioning notes»
Press the lockout reset button only manually (applying a force of no more than 10
N), without using any tools or pointed objects
Do not press the lockout reset button on the unit or the remote reset button for
more than 10 seconds since this will damage the lockout relay in the unit
Fall or shock can adversely affect the safety functions. Such units must not be put
into operation, even if they do not exhibit any damage
Ensure that the relevant safety regulations are complied with
Always run high-voltage ignition cables separately, with the greatest possible dis-
tance to the unit and to other cables
Live and neutral conductors must not be mixed up
It is important to achieve practically disturbance-free signal transmission:
Never run the detector cable together with other cables
– Line capacitance reduces the magnitude of the flame signal
– Use a separate cable
Observe the permissible cable lengths (refer to «Technical data»)
When commissioning the plant or when doing maintenance work, make the following
safety checks:
Anticipated response
Lockout at the end of «TSA»
Lockout after 40 seconds at the latest
Lockout
Repetition followed by lockout at the end of «TSA»
CC1N7153en
23.05.2014

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