ALUTHERM
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Boilers 23
ALUTERM A 170 - 300
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Installation, user and service manual
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instructions for user
Heating
Alutherm A 170 - 300
5.5
Manual Chimney sweep mode
For routine maintenance and/or service purposes a CH request can be generated to force the burner to a specific load from minimum to nominal
(0-100%). This is only possible if no error condition is present. The chimney sweep function can be started from the user menu and will be active for
15 minutes.While active it is possible to navigate through other menus to check the boiler status and functionality.
5.6
Disabling CH request
The CH function can be disabled. See 5.3.2 parameters accessible by user at 1 HEATING nr 3 scheduler set.
5.7
Service code
To access the service-level of the controller it is necessary to enter the service-code. How this done is explained in 5.4 installer (technician) menu.
5.8
Tacho fan speed
For service purposes it is possible to read the fan speed.
See 5.4.1 parameters accessible by installer (technician) at 4 DIAGNOSTICS nr 1 boiler information.
5.9
Errors
For service purposes it is possible to see a list of recent errors. See 5.3.2 parameters accessible by user at 6 DIAGNOSTICS nr error history.
5.10
ECO working mode
When the ECO button (R3-C4) is pressed a programmable value (see user menu 1. HEATING under 2 ECO Set Point Reduction) is automatically
subtracted from the flow temperature setpoint, weather compensated (OTC) setpoint, or 0-10V setpoint.
The same principle is applicable for DHW (see user menu 2. DOMESTIC HOT WATER under 2 ECO Set Point Reduction)
5.11
Holiday mode
When the Holiday button (R3-C3) is pressed a start and end date of a holiday period may be entered.The desired flow temperature and the DHW
temperature for this period can be set (see user menu 3. HOLIDAY under 1 and 2).
5.12
Schedules for CH and DHW
For CH and DHW separate schedules can be set.
Both schedules are set to enabled and always on by default.
Schedules may be set (ON, ECO, OFF) for each day, for a group of weekdays, for weekend days or for an entire week. The status of the schedule is
shown on the main screen (ON, ECO, OFF).
The schedule can be set in the user menu, heating or domestic hot water or in the technician menu, user settings, heating or domestic hot water.
Eco mode can also be forced by pushing the ECO button on the control panel (R3-C4).
5.13
Cascade and Modbus
Cascade and Modbus options are shown in two separate attachments “Modbus” and “Cascade”.
5.14
Parameter settings
The parameter settings are listed on the following pages
Notice
The following parameters in the technician menu have restrictions :
Technician menu----> 1 advanced settings----> 2 CH temperatures----> 1 absolute max. temperature
Setting higher than 90 degrees is not allowed
Technician menu----> 3 system settings----> 1 boiler parameters----> 2 delay siphon check
This setting must have a value between 1 and 5
Technician menu----> 3 system settings----> 1 boiler parameters----> 1 ignition power
The setting of 20 % must not be changed
If instructions as written above are not followed Alutherm can not be held responsible for eventual consequences
