Activating Frost Protection Operation (Radiator Switched Off); Scope Of Delivery; Troubleshooting And Maintenance - eQ-3 MAX! Radiator Thermostat Operating Manual

17. Activating frost protection operation
(radiator switched off)
If the room does not need to be heated, the valve can be
closed. The valve is only opened if there is a risk of frost.
The calcification protection function continues to run. To
activate this, proceed as follows:
In the MAX! House Solution, all settings of the MAX!
Radiator Thermostat + are made via the MAX! soft-
ware.
In the MAX! Room Solution, all settings of the MAX!
Radiator Thermostat + are made via the MAX! Wall
Thermostat + .
If you use the MAX! Radiator Thermostat + in the
MAX! Radiator Solution, please proceed as follows:
• Press the Auto/Manu button until Manu appears in the
display.
• Turn the handwheel in manual mode to the right, until
„OFF" appears in the display.
• To save changes and leave manual mode, press the Auto/
Manu button again.

18. Scope of delivery

MAX! Radiator Thermostat +
Adapter Danfoss RA
Adapter Danfoss RAV
Lifter extension Danfoss RAV
Adapter Danfoss RAVL
Cylinder head screw M4 x 12, nut M4
Support ring
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19. Troubleshooting and maintenance

Error code on Problem
the display
Battery symbol Battery voltage
( ) too low
F1 Valve drive
sluggish
F2 Actuating range
too wide
F3 Actuating range
too narrow
F4 A MAX! Cube
or MAX! Wall
Thermostat has
already been
taught-in
F5 Temperature
sensor defect
F6 Battery voltage
too low, valve
moved to error
position
Antenna symbol Connection to
( ) flashing taught-in MAX!
slowly Components lost
Antenna symbol Duty cycle has
( ) flashing been exceeded
fastly
CAL Routine descaling
is active
Solution
Replace batteries
Check the installation; check
whether the pin on the
heating valve is stuck
Check the fastening of the
actuator
Check the heating valve;
check whether the valve pin
is jammed
Make sure that the device
is not taught in to the MAX!
Cube (in the software) or
the MAX! Wall Thermostat
and reset the device. You
can repeat the teach-in
procedure afterwards.
Device defect - please
contact your specialist
dealer
Please replace batteries of
radiator thermostat
Check the power supply and
batteries to taught-in MAX!
Components
The longest period to wait
before sending again would
be an hour
Automatic function, see the
section 14.5.
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