Instructions for installation and use
Akva Lux II VXe
© Danfoss | Produced by Danfoss Redan A/S | 2021.02 | 15
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11. HEATING CIRCUIT, DANFOSS ECL 310 AUTOMATICS
Weather-compensated control of the heating circuit
Danfoss ECL 310
The temperature for the heating circuit is controlled electronically by
the Danfoss ECL controller. The supply temperature ist calculated by
the controller on basis of the outdoor temperature.
The ECL Comfort controller is loaded with a selected application by
means of an ECL Application Key (Plug-&-Play). The Application Key
contains information about application, languages and factory set-
tings. Various applications can be loaded by means of the ECL Ap-
plication Key, and it is possible to update the controller with new
application software.
The controller is factory preset to turn off the heating automatically
in the summer period. The controller settings can be changed in ac-
cordance with the enclosed producer instructions for the mounted
controller.
The controller is pre-programmed (normally) with the following fac-
tory settings:
• Language = English,
• Operating mode of the controller = Comfort “Sun” Symbol,
• Application type = A237/337
Motor speed and motor protection is set and the controller is func-
tional is functionally tested, so it’s ready for use.
Start-up of ECL 310 (easy start-up)
When the outside temperature sensor is properly installed and electri-
cally connected to the controller as described in the instructions on
page 15, proceed as follows:
1. Connect the controller and switch it on,
2. Choose ‘MENU’ in any circuit - Confirm and turn the dial and
choose ‘Common controller settings’ in the circuit selector at the
top right corner in the display,
(You navigate in the controller by turning the dial left or right to the desired position.
The position indicator in the display ( ) will always show you where you are).
3. Turn dial to select time and date,
Push the dial to confirm the selection
4. Select time and date,
5. The controller is now ready for use. Set heat curve and
temp. max. according to the procedure described below.
Setting / change of factory settings:
6. Choose ‘MENU’ in any circuit - Confirm and turn the dial and
choose ‘ Heating circuit’ in the circuit selector at the top right corner
in the display (radiator symbol),
7. Then turn the diall and choose ‘Settings’ and confirm by pushing
the dial. Then choose ‘Flow temperature’ and here you set ‘Heat
curve’ (value), according to the actual system type, including “Temp.
max.”,
8. Typical setting ranges:
Heating circuit
one-string
two-string
Floor heating
Temp. max.
70-90°C
55-65°C
35-40°C
Heat curve
1,0 - 1,75
0,8 - 1,0
0,1 - 0,5
Note
; in systems that feature only floor heating the max. supply tempe-
rature must be changed according to the above mentioned information.
If increased heat demand occurs during the heating period, the controller
settings can be changed
See ECL Application Key Box with ECL Comfort
210/310 user guide and mounting guide, for
further information.
Turn the dial
to choose ’MENU’
and press to confirm selection
Circuit selector
Choose this symbol to enter
‘Common controller settings”
Circuit selector
Heating circuit
