Danfoss Comfort 301 District Heating Controller
change display (move between the lines on the ECL Card)
Shift button
move between items in display
Minus and plus buttons
adjust temperature or time
Mode selector
change mode of operation
Circuit selector
changes between heating (I) and hot water (II)
Arrow buttons
change display (move between the lines on the ECL Card)
Shift button
- move between items in display
Minus and plus buttons
adjust temperature or time
Mode selector
- change mode of operation
Circuit selector
changes between heating (I) and hot water (II)
Adjusting the temperature
of the current heating period
Push to adjust up or down
Adjusting the temperature
of another heating period
Hold down while adjusting with minus/plus buttons
Adjusting the temperature
of the current heating period 
Push to adjust up or down
Adjusting the temperature
of another heating period
Hold down while adjusting with minus/plus buttons
Selecting mode
- Push to change the mode of the controller
The arrow indicates
Comfort or Setback temperature when in scheduled operation
Selecting mode
- Push to change the mode of the controller
- The arrow indicates
- Comfort or Setback temperature when in scheduled operation
Checking your schedules
Push to move between week day, weekend or single day plans
Return to display A, B or C
Checking your schedules
Push to move between week day, weekend or single day plans
Return to display A, B or C
Changing Comfort
- Select changeover time
- Adjust backward or forward
Removing a period
Push both at the same time for 2 seconds
Changing Comfort
Select changeover time
Adjust backward or forward
Removing a period
Push both at the same time for 2 seconds
Adding an extra period
Push both at the same time
Adjust the first changeover time
Shift to second changeover time and adjust
Restoring factory set schedule
Push both at the same time for 2 seconds
Adding an extra period 
Push both at the same time
Adjust the first changeover time
Shift to second changeover time and adjust
Restoring factory set schedule
Push both at the same time for 2 seconds
The factory set schedule
Heating (I)
- Monday – Friday 6:00 – 8:00 16:00 – 22:00
- Saturday – Sunday 8:00 – 23:00
DHW (II)
- Monday – Friday 5:00 – 22:00
- Saturday – Sunday 6:00 – 23:00
Storing a new schedule on your
ECL Card
Push to line 9: 
Update your ECL Card
The factory set schedule
Heating (I)
- Monday – Friday 6:00 – 8:00 16:00 – 22:00
- Saturday – Sunday 8:00 – 23:00
Hot water (II)
- Monday – Friday 5:00 – 22:00
- Saturday – Sunday 6:00 – 23:00
Storing a new schedule on your ECL Card
Push to line 9: CPY
Update your ECL Card
Frequently Asked Questions
- Q: How do I adjust the temperature on the ECL Comfort 301?
A: You can adjust the temperature by using the minus and plus buttons on the controller. - Q: Can I restore factory settings on the ECL Comfort 301?
A: Yes, you can restore factory settings by pressing both buttons simultaneously for 2 seconds.
Documents / Resources
 |
Danfoss Comfort 301 District Heating Controller [pdf] Instruction Manual QG-L05, L66, H66, Comfort 301 District Heating Controller, Comfort 301, District Heating Controller, Heating Controller |
