Hydraulic Balance - Danfoss Icon series Installationsanleitung

Installation Guide

Hydraulic balance

VIMCG20F / 088N3678
Danfoss Icon™ Master Controller 24 V
Er08 Communication lost from Slave to Master
Controller.
Er09 Communication lost to APP Module.
Er10 Communication lost to Repeater.
Er11 Communication lost to Expansion Module. Check that Expansion Module is slidded
Er12 Actuator defective.
The defective actuator output is flashing.
Er14 A Danfoss Icon™ Master Controller cannot
be included as (become) a Slave Controller
because one or more room thermostats,
repeaters or Danfoss Icon™ Master Con-
troller 24V have already been included.
Er15 Battery low in a room thermostat.
Er16: This application requires a specific actua-
tor output to be available.
Er17: External PT1000 sensor not fitted, or
defective.
When using the Danfoss Icon™ Master Controller
24V with PWM+ regulation, the system will auto-
matically balance the circuits.
In heating systems with extreme differences in
circuit lengths, the automatic balancing might not
be adequate.
In these cases the Danfoss Icon™ Master Controller
24V can help you determine which circuits that are
struggling to get enough flow:
1. Press to select RUN mode.
2. Press an button to see the average duty
cycle in percentage for the selected circuit.
1 2 3
When pressing the output button the average
duty cycle is shown in the display of the Danfoss
Icon™ Master Controller 24V.
The duty cycle is shown as the amount of time in
% that the actuator is open during active heating
periods and only when in heating mode as an
average over time.
If wireless, check Radio Module connec-
tion to Danfoss Icon™ Master Controller
24V. If wired system, check the wire con-
necting the controllers.
Please check that the cable is properly
connected in the APP Module and Dan-
foss Icon™ Master Controller 24V.
Check that the repeater is plugged into
outlet / has not been removed and outlet
is ON.
fully into place.
Replace actuator.
This Danfoss Icon™ Master Controller 24V
has to be factory reset to become a Slave
Controller. (See description in chapter
"Reset or replace a Danfoss Icon™ Master
Controller).
The room is indicated via the LED(s) for
the paired output actuators as if the con-
nection is lost. Replace batteries (2 pcs AA
Alkaline) in thermostat.
You have already assigned this output to
a room thermostat, or the output has not
yet had an actuator fitted. Please remove
output from thermostat, it must be
available to the application chosen (or fit
actuator - if this was not yet done)
Check sensor and replace if necessary.
This feature can help determine if one or more
rooms have difficulty receiving enough flow or
effect to reach optimal comfort.
The room with the highest duty cycles is the one
that calls for the highest flow. If this room has
problems reaching the desired room setpoint
temperature, the following steps can help give this
room more flow/heating capacity:
1. Increase the flow for the room with the high-
est duty cycle, using the pre-setting valve
on the manifold -> set to maximum flow on
pre-setting valves for this room's outputs.
2. If the room with the highest duty cycle is
already at maximum flow, instead reduce the
flow for the outputs that show the lowest
duty cycle (these do not need as much flow).
3. If none of the above is enough to reach the
OK
desired room temperature, increase the total
flow, by setting a higher flow on the circula-
tion pump.
4. As a last resort increase the supply tempera-
ture into the system.
Note! By installing an Expansion Module in the Dan-
foss Icon™ Master Controller 24V the system will be
able to automatically adjust the supply temperature
according to heat demand in the rooms.
© Danfoss | FHEC | 2017.12 | 11
GB