Installation and Operation Manual
TFTN 085-199
74
16.1 Home Screen
After power-up, following the initialization sequence (see Figure 16-1), the boiler defaults to the Home Screen.
Figure 16-3 Home Screen
16.2 Operating Mode
(Scheduling)
Operating mode can be used to select the mode or modes that the boiler will operate for, i.e., CH, DHW, CH & DHW or OFF.
Figure 16-4 Operating Mode
Winter
(default)
–
boiler operates for both central heating (CH) and domestic hot
water (DHW) demands, i.e., normal operation.
Summer
–
boiler only operates for domestic hot water (DHW) demands.
Heating only
–
boiler only operates for central heating (CH demands)
Off
–
boiler will only operate for Anti-freeze function (if set to Enabled)
Holiday
–
boiler will only run to maintain the room temperatures of zones with NTI
Room Sensors at the Holiday setpoint; other CH zones will remain off. DHW will
only be heated by the Anti-legionella Function (if set to On), or DHW frost
protection (tank temp < 46°F). Holiday operating mode is not selectable from the
display, only via the web or mobile app.
Note: the boiler will still perform the Anti-freeze Function with Operating Mode set
to Holiday.
Inlet water pressure
Outlet temp (actual)
WiFi connection status
Date & time
–
press to
adjust/select Internet Time
Outlet temp target &
burner on/off thresholds
Boiler, System and DHW
Recirc pump status
–
green
when pump is on
Boiler size
Outdoor temp
–
press to
select Internet Weather or
to disable AUTO
Temperature Control Mode
Burner enable/disable
button
Burner power level
DHW tank temp / Aquastat
state
Boiler status widget
DHW setpoint and pump
status
–
green when pump
is on. Press to enter DHW
screen of
Select to enter the
menu
select to
view a summary of zone
settings & status
select to view
a summary of the boiler I/O
Zone status
–
press to enter the
for the given zone (6 visible in
cascade or with optional N-Link ZC3)
select to view a
summary of the cascade
system (Manager boiler only)
–
select to view past
& present error details
Inlet temperature
WiFi weather conditions
selection
Boiler address
