INSTALLATION
CHANGING THE MAXIMUM FLOW TEMPERATURE SETPOINT
Installer Mode
Normal Operation
Set Flow Temp’
Set DHW Temp’
Boiler default setting is that maximum ow temperature setpoint is 82°C
This feature limits the maximum ow temperature that can be set in the
Basic Operating Mode
Press SELECT and then hold + and - down together for more than 5s,
the following screen will be displayed
Rotate the KNOB clockwise until the following screen is displayed
Installer Mode
CH/DHW Priority
Set Max Flow Temp’
Set Min Flow Temp’
Sys Frost Protect
Press SELECT and the following screen will be displayed
Set Max Flow Temp’
80°C
Press + and - to change to the required setting and then press
ENTER to store
Rotate the KNOB clockwise until Normal Operation is highlighted
again and press SELECT to return to normal operation
CHANGING THE MINIMUM FLOW TEMPERATURE SETPOINT
Installer Mode
Normal Operation
Set Flow Temp’
Set DHW Temp’
Boiler default setting is that minimum ow temperature setpoint is 30°C
This feature limits the minimum ow temperature that can be set in the
Basic Operating Mode
Press SELECT and then hold + and - down together for more than 5s,
the following screen will be displayed
Rotate the KNOB clockwise until the following screen is displayed
Installer Mode
Set Max Flow Temp’
Set Min Flow Temp’
Sys Frost Protect
Soft Start Time
Press SELECT and the following screen will be displayed
Set Max Flow Temp’
30°C
Press + and - to change to the required setting and then press
ENTER to store
Rotate the KNOB clockwise until Normal Operation is highlighted
again and press SELECT to return to normal operation
CHANGING THE SYSTEM FROST PROTECTION TEMP. SETPOINT
Installer Mode
Normal Operation
Set Flow Temp’
Set DHW Temp’
Note that System Frost Protection Function is only operational if an
Outside Sensor has been connected
The CH pump is switched on if the Outside Temp. is less than the
System Frost Protection Temp.
The CH pump is switched off if the Outside Temp. is more than the
System Frost Protection Temp. +5°C
The boiler default setting is the system frost protection temp. setpoint is -10°C
Press SELECT and then hold + and - down together for more than 5s,
the following screen will be displayed
Rotate the KNOB clockwise until the following screen is displayed
Installer Mode
Set Min Flow Temp’
Sys Frost Protect
Soft Start Time
O/S Room Temp’
Press SELECT and the following screen will be displayed
Sys Frost Protect
-10°C
Press + and - to change to required setting, press ENTER to store
Rotate the KNOB clockwise until Normal Operation is highlighted
again and press SELECT to return to normal operation
continued . . . . . . . .
42
USER INTERFACE - ADVANCED OPERATING INSTRUCTIONS
CHANGING CH / DHW PRIORITY
Installer Mode
Normal Operation
Set Flow Temp’
Set DHW Temp’
The boiler default setting is DHW always has priority ahead of CH
It is possible to change this so CH always has priority ahead of DHW
or the boiler alternates between DHW and CH every 10 mins
Press SELECT and then hold + and - down together for more than 5s,
the following screen will be displayed
Rotate the KNOB clockwise until the following screen is displayed
Installer Mode
Set Booster
CH/DHW Priority
Set Max Flow Temp’
Set Min Flow Temp’
Press SELECT and the following screen will be displayed
CH/DHW Priority
Priority = DHW
Priority = CH
Priority = Equal
Press + and - to change to the required setting and then press
ENTER to store
Rotate the KNOB clockwise until Normal Operation is highlighted
again and press SELECT to return to normal operation
Note: if this menu option is not displayed then the “2nd sL DHW/CH” menu
option has been set for CH. CH Priority can be set from the “2nd sL DHW/
CH” menu option or the 2nd sL can be recongured for DHW operation.
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