45
NOTE
After a system reset where the configuration selection is
‘new’, carry out a check on the various (applicable) installation
parameters to ensure that the ‘new’ configuration meets the
requirements of the system.
PLANT
FLOW METER
FLOW SWITCH
8.9 ACCESS TO INSTALLATION PARAMETERS
Warning! – Unqualified personnel and/or ‘end-users’
should not attempt to access or adjust ANY installation
parameter; serious damage or appliance malfunction
may occur as the result of an incorrectly set parameter.
To access the installation parameters:
1. select MENU from the REC10 UI
2. simultaneously press and hold both the ‘return’ and ‘down-
arrow’ buttons until the display changes to show: INSERT
PASSWORD
3. using the ‘up-arrow’ button, press until ‘18’ is shown in the
display, then press ‘select’
4. use the following menu string:
MENU
TECHNICAL
5. refer to the section 3.1 for further details.
8.10 Typical BeSMART connection –
connected to the M4 terminal strip
8.11 Typical connection from remote room
thermostat and clock – connected to the
BE11
8.12 S-PLAN & Y-PLAN WIRING
CONFIGURATIONS
Warning! – Failure to follow the wiring configurations as
detailed below, may result in malfunction and/or internal
damage to the appliance.
The
UNICA MAX S
system boilers incorporate an internal
relay that enables a direct switched 230v supply to be used
to generate a heating or hot water request from an external
control system such as Y-PLAN or S-PLAN.
To configure an S or Y PLAN control system with the
UNICA
MAX S
boiler, proceed as follows:
1 Isolate the appliance from the electrical supply and remove
the front cover as detailed in section 5.7.1. gain access to
the appliance PCB as detailed 5.7.3
2 Identify the internal relay PCB (BE11), which is located to
the right hand side of the main control PCB
3 Route the external wiring from the Y-Plan/S-Plan control
system through one of the cable entry points that are
located on the lower right-side of the appliance
4 Using the (below) relevant diagram as a reference, connect
the switched 230v supply (Live & Neutral) from the external
control system (Y-Plan/S-Plan) to the small PCB (BE11) at
terminals CN1
5 Replace the PCB cover ensuring that no internal wiring is
trapped or strained
6 Replace the appliance front cover as detailed in section
5.7.1.
NOTE
• Under no circumstances should the Y-Plan/S-Plan wiring be
connected directly to the TA connections.
• Ensure that the appliance and all other external controls,
are served and isolated from the same electrical supply/
isolator.
• Ensure that the cable entry point is suitably sealed with
silicone sealant or adhesive tape.
