User Manual

6/11
Building Technologies Division CC1N7542en
21.06.2015
Meaning of symbols on the display
Parameter setting mode
Info mode
Actuator closing
Actuator opening
Fan motor controlled
Oil preheater on
Heat request from controllers
Ignition controlled
Flame present
Fault status message
Unit of current display
Bild 2e/0807
Installation notes
 The plugs of the connecting cables for the AZL2… may only be removed or
replaced when the plant is disconnected from power (all-polar disconnection) since
there is no safe separation between BCI interface and mains voltage
 Signal cable AGV50 from the safeguard / burner control to AZL2
Since there is no safe separation between the BCI and the mains voltage, the
signal cable AGV50 from the flame safeguard / burner control to the AZL2 must
conform to the defined specifications (refer to Technical data).
The specification of the signal cable AGV50... required for this application is given
inside the burner cover. When using signal cables that do not comply with the
specification, there is a risk that requirements will not be satisfied
 Do not lay the signal cable AGV50 from the flame safeguard / burner control to the
AZL2 together with other cables
 The signal cable AGV50... and the AZL2… must be shipped and stored such that
dust and water cannot have any adverse effect
 To ensure protection against electric shock hazard, make certain that – prior to
switching on mains voltage – the cable is correctly connected to the AZL2…
 The AZL2... must be used in a dry and clean environment
 Prior to installation, the units must be disconnected from power
 Wiring must satisfy the requirements of safety class II
 Static charges must be avoided since they can damage the electronic components
of the units when touched
Recommendation: Use ESD equipment!
Danger
 DIN EN 60 335 and DIN EN 60 730-2-5 must be complied with
 The electrical wiring inside the boiler must conform to national and local
regulations
 Degree of protection IP40 / IP54 as per DIN EN 60529 for flame safeguards /
burner controls must be ensured by the burner or boiler manufacturer through
correct installation of the AZL2. If this is not observed, there is a risk of loss of
safety functions and a risk of electric shock